54-650.0 ETA2 Fieldbus

Thermatel®
Enhanced Model TA2
FOundATIOn Fieldbus™ digital Output
Software v2.x
Installation and Operating Manual
Thermal
Dispersion
Mass Flow
Transmitter
Read this Manual Before Installing
This manual provides information on the TA2 Thermal
Dispersion Mass Flow Transmitter. It is important that all
instructions are read carefully and followed in sequence.
Detailed instructions are included in the Installation section of this manual.
Conventions Used in this Manual
Certain conventions are used in this manual to convey
specific types of information. General technical material,
support data, and safety information are presented in
narrative form. The following styles are used for notes,
cautions, and warnings.
NOTES
Notes contain information that augments or clarifies
an operating step. Notes do not normally contain
actions. They follow the procedural steps to which
they refer.
Cautions
Cautions alert the technician to special conditions that
could injure personnel, damage equipment, or reduce
a component’s mechanical integrity. Cautions are also
used to alert the technician to unsafe practices or the
need for special protective equipment or specific
materials. In this manual, a caution box indicates a
potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
WARNINGS
Warnings identify potentially dangerous situations or
serious hazards. In this manual, a warning indicates an
imminently hazardous situation which, if not avoided,
could result in serious injury or death.
Safety Messages
Follow all standard industry procedures for servicing electrical equipment when working with or around high
voltage. Always shut off the power supply before touching any components.
WARNING! Explosion hazard. Do not connect or disconnect equipment unless power has been switched off or
the area is known to be non-hazardous.
Low Voltage Directive
For use in Installation Category II, Pollution Degree 2. If
equipment is used in a manner not specified by manufacturer, protection provided by equipment may be impaired.
Notice of Trademark, Copyright, and Limitations
Magnetrol® & Magnetrol® logotype, and Thermatel® are
registered trademarks of Magnetrol International®.
Thermatel® Model TA2 Thermal Dispersion Mass Flow
Transmitter is a tradename of Magnetrol International,
Incorporated®.
Copyright © 2014 Magnetrol® International, Incorporated.
All rights reserved.
Performance specifications are effective with date of issue
and are subject to change without notice. Magnetrol®
reserves the right to make changes to the product
described in this manual at any time without notice.
MAGNETROL makes no warranty with respect to the
accuracy of the information in this manual.
Warranty
All MAGNETROL electronic level and flow controls are
warranted free of defects in materials or workmanship for
one full year from the date of original factory shipment.
If returned within the warranty period; and, upon factory
inspection of the control, the cause of the claim is
determined to be covered under the warranty; then,
MAGNETROL will repair or replace the control at no
cost to the purchaser (or owner) other than transportation.
MAGNETROL shall not be liable for misapplication,
labor claims, direct or consequential damage or expense
arising from the installation or use of equipment. There
are no other warranties expressed or implied, except special written warranties covering some MAGNETROL
products.
Quality Assurance
The quality assurance system in place at MAGNETROL
guarantees the highest level of quality throughout the
company. MAGNETROL is committed to providing full
customer satisfaction both in quality products and quality service.
The MAGNETROL Corporate quality
assurance system is registered to ISO
9001 affirming its commitment to
known international quality standards
providing the strongest assurance of
product/service quality available.
Thermatel® Enhanced Model TA2 Transmitter
Table of Contents
1.0 FOUNDATION fieldbus ™ Overview
1.1 Description ...............................................................4
1.2 Device Configuration................................................5
1.2.1 FOUNDATION fieldbus ™ Revision Table ..........5
1.3 Link Active Scheduler (LAS).....................................6
2.0 Quick Start Installation
2.1 Probe Installation ......................................................6
2.2 Wiring ......................................................................7
2.3 Configuration ...........................................................7
3.0 Installation
3.1 Unpacking ................................................................8
3.2 Electrostatic Discharge (ESD) Handling Procedure .....8
3.3 Installation ................................................................9
3.3.1 Electronics......................................................9
3.3.2 Probe/Flow Body............................................9
3.4 Wiring ....................................................................11
3.4.1 Power and Signal Connection ......................11
3.4.2 Ground Connection.....................................11
3.4.3 Remote Electronics.......................................12
3.4.3.1 Probe Wiring ........................................12
3.5 Configuring the Transmitter....................................13
3.5.1 Initialization .................................................13
3.5.2 Operator Keypad..........................................14
3.5.2.1 Menu Traversal Mode............................14
3.5.2.2 Item List Selection ................................14
3.5.2.3 Numeric Entry......................................15
3.5.2.4 Character Data Entry Mode..................15
3.5.2.5 Increment/Decrement Digit Mode........16
3.5.3 Password.......................................................16
3.5.4 Run Mode....................................................18
3.5.5 Measured Values...........................................18
3.5.6 Basic Configuration Menu ...........................20
3.5.7 I/O Configuration Menu .............................21
3.5.8 Totalizer .......................................................21
3.5.9 Advanced Configuration Menu ....................23
3.5.10 Device Information ......................................25
3.5.11 Diagnostics Menu ........................................26
3.5.12 Factory Configuration ..................................30
3.5.13 Probe Parameters ..........................................31
3.5.14 Calibration Parameters .................................32
3.5.15 Gas Parameters .............................................33
3.5.16 Air Equivalency Calibration .........................34
4.0 Function Blocks
4.1 Overview.................................................................35
4.1.1 Universal FOUNDATION fieldbus™
Block Parameters ..........................................35
4.2 Resource Block........................................................36
4.2.1 Additional Resource Block Parameters .........39
4.2.2 Manufacturer-Specific Parameters ................40
4.3 Transducer Block.....................................................41
4.3.1 Transducer Block Parameters........................41
4.4 Analog Input Block.................................................42
4.4.1 AI Block Parameters .....................................42
4.5 PID Block ...............................................................44
4.5.1 PID Block Parameters ..................................45
4.6 Integrator Block ......................................................47
4.6.1 Integrator Block Parameters .........................48
4.7 Local Display of Function Block Values ..................50
5.0 Diagnostic Parameters
5.1 Simulation Feature ..................................................52
5.1.1 Removing the Simulation Jumper ................52
5.2 Troubleshooting ......................................................52
5.2.1 Error Messages .............................................54
5.2.1.1 Fault Messages.......................................55
5.2.1.2 Warning Messages .................................56
5.2.1.3 Information Message.............................56
5.2.1.4 Device Status Parameter
in the Transducer Block ........................57
5.3 Diagnostics Test ......................................................58
5.3.1 Heater Setting ..............................................58
5.3.2 Zero Power Test............................................58
5.3.3 Calibration Verification Procedure ...............58
6.0 Maintenance
6.1 Circuit Board Replacement .....................................60
6.2 Probe Replacement .................................................61
6.3 Replacement Calibration.........................................62
6.3.1 RTD Calibration..........................................62
6.3.2 Set Point Adjustment ...................................62
6.4 Flow Recalibration ..................................................62
7.0 Reference Information
7.1 Description .............................................................64
7.2 Theory of Operation...............................................65
7.3 Display Module ......................................................66
7.4 Agency Approvals....................................................67
7.5 Replacement Parts...................................................68
7.6 Specifications ..........................................................70
7.6.1 Performance .................................................70
7.6.2 Transmitter ..................................................70
7.6.3 Probe............................................................70
7.6.4 Flow Body....................................................70
7.6.5 Physical ........................................................71
7.7 Model Numbers......................................................73
7.7.1 Transmitter...................................................73
7.7.2 Insertion Probe.............................................74
7.7.4 Flow Body....................................................75
7.7.5 Connecting Cable ........................................76
7.8 References ...............................................................77
Appendix A – Transducer Block Parameters .................77
Appendix B....................................................................79
Glossary .........................................................................82
Flow Application Questionnaire....................................83
1.0
FOUNDATION fieldbus™ Overview
1.1
Description
FOUNDATION fieldbus™ is a digital communication system
that serially interconnects devices in the field across a network.
Fieldbus devices are smart and can maintain control over the
system. The network can carry many process variables as
well as other operational/maintenance information.
6234 feet (1900 meters) maximum
PC
Power
Conditioner
Terminator
Terminator
Power Supply
Input Power
Input Power
Input Power
Control Room
Typical Fieldbus Installation
The Enhanced Model TA2 transmitter is a
FOUNDATION fieldbus™ registered device that communicates
with the H1 FOUNDATION fieldbus™ protocol operating at
31.25 kbits/sec. The H1 physical layer is an approved
IEC 61158 standard.
An IEC 61158 shielded twisted pair wire segment can be as
long as 6234 feet (1900 meters) without a repeater. Up to
4 repeaters per segment can be used to extend the distance.
The maximum number of devices allowed on a Fieldbus
segment is 32.
Details regarding cable specifications, grounding, termination,
and other network information can be found in IEC 61158
or the wiring installation application guide AG-140 at
www.fieldbus.org.
NOTE: The Model TA2 FF Flow Meter is designed as a “Four-Wire”
Transmitter. Since power is required for the operation, the
TA2 FF requires supplemental power which can be either 15
to 30 VDC or 100 – 264 VAC. The TA2 connection to the host
computer can be installed using a single pair of wires in multidrop configuration.
4
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
1.2
Device Configuration
The function of a FOUNDATION fieldbus™ device is determined
by the arrangement of a system of blocks defined by the
Fieldbus Foundation. The types of blocks used in a typical
User Application are described as follows:
Resource Block describes the characteristics of the
FOUNDATION fieldbus™ device such as the device name,
manufacturer, and serial number.
Transducer Blocks contain information such as calibration
parameters and sensor type. They are used to connect the
sensor to the input function blocks.
Function Blocks are built into the FOUNDATION fieldbus™
devices as needed to provide the desired control system
behavior. The input and output parameters of function
blocks can be linked over the Fieldbus. There can be
numerous function blocks in a single User Application.
PID Blocks are key to many control schemes and contain the
logic necessary to perform Proportional/Integral/Derivative
control.
Analog Input (AI) Blocks use values from the Transducer
Block and make available to other function blocks.
Integrator Blocks accumulate the flow or mass value from
the AI Block to provide the value of the Totalized Flow.
Device Descriptions
An important requirement of Fieldbus devices is the interoperability concept mentioned earlier. Device Description
(DD) technology is used to achieve this interoperability.
The DD provides extended descriptions for each object and
provides pertinent information needed by the host system.
Any Fieldbus host system can operate with a device if it has
the proper DD and Common File Format (CFF) for that
device.
The most recent DD and CFF files can be found on the
FOUNDATION fieldbus™ web site at www.fieldbus.org.
NOTE: Please consult your host system vendor for any host-specific
files that may be needed.
1.2.1 FOundATIOn fieldbus™ Revision Table
Model TA2 2.x
FOundATIOn fieldbus™ FOundATIOn fieldbus™
Version
Release date
Compatible with
TA2 Software
Dev V1 DD V1
Version 2.0A and later
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
October 2011
5
1.3
Link Active Scheduler (LAS)
The default operating class of the Enhanced Model TA2
with FOUNDATION fieldbus™ is a basic device. However, it is
capable of being a Link Active Scheduler (LAS). The LAS
controls all communication on a FOUNDATION fieldbus™
segment. It maintains the “Live List” of all devices on a
segment, coordinates both the cyclic and acyclic timing and,
at any given time, controls which device publishes data via
Compel data (CD) and Pass Token (PT).
The primary LAS is usually maintained in the host system,
but in the event of a failure, all associated control can be
transferred to a backup LAS in a field device such as the
Enhanced Model TA2. The operating class can be changed
from basic to LAS using a FOUNDATION fieldbus™ configuration tool.
NOTE: The Enhanced Model TA2 is shipped from the factory with
Device Class set to Basic.
2.0
Quick Start Installation
The TA2 is calibrated and configured with the information
supplied to MAGNETROL with the order. The instrument
can be installed, wired, and placed directly into operation.
2.1
Probe Installation
Insert the probe into the pipe or duct at the appropriate
location. It is recommended that the sensor be located on
the center line of the pipe and that the flow arrow be positioned in the direction of flow.
See Appendix B for recommended straight run and flow
conditioning plate installation details (if applicable).
Pipe
centerline
1" (25 mm)
Figure 1
Probe Installation into Pipe or duct
using a Compression Fitting
6
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
2.2
Wiring
Warning:
Explosion Hazard. Do not connect or disconnect
equipment unless power has been switched off or the
area is known to be non-hazardous.
NOTE: Make sure the electrical wiring to the TA2 is complete and in
compliance with all regulations and codes. For a maximum
ambient temperature of 80° C use wiring rated up to 264 VAC
and 105° C. For a maximum ambient temperature of 70° C use
wiring rated up to 264 VAC and 95° C.
AC Power input
(100 – 264 VAC)
TB1
INPUT
AC
L2
L1
100-264 VAC
50/
60Hz
DC Power input
(15 – 30 VDC)
TB2
FOUNDATION fieldbus™
Connection
TB3
DC
INPUT
FIELDBUS
INTERFACE
+
FF– FF+
–
TB2
NOTE: The AC power terminal blocks accept 12-22 AWG wire and the
DC power terminal blocks accept 14-30 AWG wire. Select wire
size consistent with power requirements.
1. Remove the cover of the rear compartment.
2. Pull power supply and control wiring through conduit
connection.
3. Connect power leads to proper terminals.
a. 100 to 264 VAC – Make connections to TB1.
Connect the “hot” wire to L1 and the second wire to L2.
b. 15 to 30 VDC – Make the connections to TB2.
Connect the Positive wire to (+) and the negative lead
to (–).
4. Connect Foundation fieldbus leads to terminal TB3.
Connect the positive wire to FF+ and the negative wire to
FF-. Fieldbus voltage range is 9-32 VDC.
TB3
TB1
Figure 2
Enhanced TA2
FOundATIOn fieldbus ™ Wiring Board
NOTE: Ensure that the correct wiring is made to the appropriate terminals. Connecting the DC power to the AC terminals will
cause the unit not to operate. Connecting the AC power to the
DC terminals will blow the fuse and potentially cause damage
to the electronics boards.
NOTE: The green ground screw in the rear of the housing should be
used for earth ground.
NOTE: Shielded cable is required for the DC wiring. Connect the
shield wire to the green ground screw in the rear of the
housing.
2.3
Configuration
The TA2 is pre-configured using the information supplied
with the order. If desired, the user can view or change any
of the configuration data. See Configuring the Transmitter,
Section 3.5
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
7
3.0
Installation
3.1
Unpacking
Unpack the instrument carefully making sure all components have been removed from the packing material.
Inspect all components for damage. Report any concealed
damage to the carrier within 24 hours. Check the contents
of the carton making sure they correspond with the packing
slip and purchase order. Save the Calibration Certificate
containing the calibration and configuration data for
future reference.
Verify that the model number imprinted on the nameplate
matches the number on the packing slip and the purchase
order. Report any discrepancies to the factory. Record the
serial number for future reference when ordering parts.
Model Number
Serial Number
3.2
Electrostatic Discharge (ESD)
Handling Procedure
1.
2.
3.
4.
MAGNETROL electronic instruments are manufactured
to the highest quality standards. These instruments utilize
electronic components which may be damaged by static
electricity present in most work environments. The following steps are recommended to reduce the risk of component failure due to electrostatic discharge:
Ship and store circuit boards in anti-static bags. If an antistatic bag is not available, wrap board in aluminum foil.
Do not place boards on foam packing materials.
Use a grounding wrist strap when installing and removing
circuit boards. A grounded workstation is also recommended.
Handle printed circuit boards only by the edges. Do not
touch components or connector pins.
Ensure that all electrical connections are completely secure
and none are partial or floating. Ground all equipment to
a good earth ground.
NOTE: The instrument is rated per IEC 61010-1 for use in Installation
Category II, Pollution Degree 2.
8
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.3
Installation
3.3.1 Electronics
The instrument is rated for use in Class I, Division 1 and
Class I, Division 2 areas. The enclosure is also rated
NEMA 4X. Remote electronics (optional) should be
installed in an easy to access location within 500 feet
(150 meters) of the sensor. The electronics should not be
installed in areas where ambient temperature exceeds
+175° F (+80° C). If ambient temperature is between
-22° to -65° F (-30° to -54° C), the unit will operate but
the display will not be readable.
Provide watertight seals for all wiring entrances in the
enclosure to maintain the NEMA 4X rating. Use appropriate NEC section when installing the instrument.
NOTE: A switch or circuit breaker should be installed in close proximity to the equipment and within easy reach of the operator.
It should be marked as the disconnecting device for the
equipment.
3.3.2 Probe/Flow Body
Pipe
centerline
1" (25 mm)
Figure 3
Probe Installation into Pipe or duct
using a Compression Fitting
Proper installation of the probe in the pipe or duct is
essential for accurate air or gas flow measurement. Normal
procedures for installing any type of flow element should
be followed. See Appendix B for additional information on
probe location.
A flow arrow is etched on the sides of the probe to designate flow direction. The instrument is calibrated with the
flow in this direction. Ensure that the flow arrow is aligned
in the direction of flow. The instrument is unable to recognize flow direction if inserted with the flow arrow in the
wrong direction.
It is generally recommended that the sensor be located in
the center of the pipe. This location provides less sensitivity
to changes in flow profile. Sensors mounted through compression fittings have the ability to field adjust the sensor
to the desired location by using the dimensions as shown
in Figure 3.
It may be necessary to rotate the head of the instrument to
view the display while maintaining the proper flow orientation. This is accomplished by loosening the set screw on
the bottom of the housing, rotating the enclosure to the
desired position and re-tightening the set screw. The second
set screw is a stop to prevent over rotating the enclosure.
See figure 4.
Figure 4
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
9
Pressure ratings of the compression fitting:
Stainless steel ferrules:
1500 psig at +70° F (103 bar at +20° C)
1375 psig at +400° F (95 bar at +200° C)
Teflon® ferrules:
100 psig (7 bar)
Various methods of mounting the probe include compression fittings, threads, and flanged connections. Refer to
probe model numbers. The insertion probe can be
installed through a compression fitting. The use of a
bored-through fitting with 3⁄4" or 1" NPT connection for
3
⁄4" outside diameter tube is recommended.
The use of Teflon® ferrules should be considered if repeated reposition of the sensor is considered. The stainless steel
ferule can only be tightened once as it makes a permanent
indentation on the probe. If using a compression fitting
with stainless steel ferrules, ensure that the probe is in the
desired location before tightening.
NOTE: The TA2 flow measurement is based on a fully developed turbulent flow profile in a pipe with the specified inner diameter.
Accuracy will be affected if these conditions are not obtained.
Installing the probe in a tee is not recommended as the flow
profile and the flow area are distorted (See figure 5).
For applications where it is desirable to install or remove
the probe without having to shut down the process,
The MAGNETROL Retractable Probe Assembly (RPA)
can be utilized. See the TA2 Sales Brochure (MAGNETROL
bulletin 54-140) for more information.
WARNING To avoid potential damage or injury, never loosen a
compression fitting while sensor is under pressure.
Figure 5
Probe Installation into a Tee Fitting is
not Recommended
NOTE: Remote electronics is recommended for operating temperatures greater than +250° F (+120° C) or in locations where the
temperature of the electronics will exceed +175° F (+80° C).
Optionally, an insertion probe with extended probe length to
provide at least four inches (100 mm) between the electronics
and the compression fitting can be utilized.
NOTE: The sensor must be installed in a location where moisture
cannot drip or come in contact with the heated element. Any
contact with condensed moisture in the gas flow will cause a
false high flow indication. Consider mounting the probe at
a 45° angle from top, from the side or bottom of the pipe to
minimize possibility of condensed moisture running down the
probe and contacting the sensor (see Figure 6). In extreme
cases, it may be necessary to insulate or even heat trace the
pipe to prevent the condensation of moisture.
The TA2 with an insertion probe provides a point measurement and assumes that a fully developed profile exists.
See Appendix B. The user has the ability to compensate
the flow measurements based upon flow profile considerations under the Advanced Configuration section of the
software. See Section 3.5.9.
Figure 6
Install the TA2 at an Angle
where Condensed Moisture
may be Present
10
NOTE: If equipment is used in a manner not specified by manufacturer,
protection provided by equipment may be impaired.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.4
Wiring
There are two connections in the electronics enclosure for
3
⁄4" NPT or M20 connections. These are generally used as
one connection for input power and one for output signal.
3.4.1 Power and Signal Connection
Front
Compartment
The instrument has separate wiring connections for AC (100
to 264 VAC) and DC (15 to 30 VDC). AC power wiring
connections are made to terminal block TB1. DC
Connec-tions are made to terminal block TB2. Refer to
Figure 8.
Rear
Compartment
NOTE: The AC power terminal blocks accept 12-22 AWG wire and
the DC power terminal blocks accept 14-30 AWG wire. Select
wire size consistent with power requirements.
For a maximum ambient temperature of 80° C use wiring rated
up to 264 VAC and 105° C. For a maximum ambient of 70° C
use wire rated up to 264 VAC and 95° C.
Caution: OBSERVE ALL APPLICABLE ELECTRICAL COdES
And PROPER WIRInG PROCEduRES.
Figure 7
Wiring Housing Cover
AC Power input
(100 – 264 VAC)
TB1
AC
DC Power input
(15-30 VDC)
TB2
INPUT
100-264 VAC
50/
60Hz
DC
INPUT
FIELDBUS
INTERFACE
+
FF– FF+
–
L1
L2
FOUNDATION fieldbus™
Connection
TB3
TB2
TB3
D6
F2
TB1
F2 TEST
F1
TEST
1. Make sure the power source is turned off.
2. Unscrew and remove housing cover of rear compartment.
Refer to Figure 7.
3. Pull power supply and control wires through conduit
connection.
4. Connect power leads to proper terminals. Refer to Figure 8.
a. VAC (100 to 264 VAC) Make connections to TB1.
Connect hot wire to terminal marked L1 and the second
wire to the terminal marked L2.
b. DC (15 to 30 VDC)–Make connections to TB2. Connect wires to terminals (+) and (-) on the terminal block.
c. Connect Foundation fieldbus leads to terminal TB3.
Fieldbus voltage range is 9-32 VDC.
NOTE: The green screw in the rear of the housing should be used for
earth ground.
NOTE: Shielded cable is required for the DC wiring. Connect the
shield wire to the green ground screw in the rear of the housing.
F1
5. Replace housing cover. Installation is complete.
Figure 8
Enhanced TA2
FOundATIOn fieldbus ™ Wiring Board
Caution: In hazardous areas, do not apply power to the unit until
the conduit is sealed and the enclosure cover is screwed
down securely.
NOTE: Install using Teflon® tape at all conduit entries (maximum 2
turns).
3.4.2 Ground Connection
The instrument must be grounded in accordance with
Article 250 of the National Electric Code.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
11
3.4.3 Remote Electronics
Power Fieldbus Board
in Electronics Housing
1
If the electronics are remote from the probe, a remote
board with terminal blocks is provided in the housing on
the probe. For cable lengths up to 150 feet, the connection
between the probe and electronics should be an 8-conductor
shielded cable (Belden 8104). For cable lengths up to
500 feet, a 10-conductor shielded cable (Belden 8305) is
used. This cable length can be adjusted in the field. If cable
other than the recommended Belden cable is used, following
are the maximum resistances which should be utilized:
2
4
5
0
1
91
TB 7 8
6
3
11
J1
8 Conductor –maximum resistance of 5.4 ohms
10 Conductor –maximum resistance of 10.0 ohms
Caution: The probe and electronics are calibrated and shipped as a
matched set. The model number is indicated on both the
electronics nameplate and the probe nameplate; verify
that they are the same.
3.4.3.1 Probe Wiring
TB2
orange
brown
black
blue
white
1
2
3
4
5
1 2 3 4 5 6 7 8 9 10
1.
2.
3.
To Probe
Figure 9
Probe Housing
REMOTE WIRInG CABLE COnnECTIOnS
Belden 8104 Belden 8305
TB1
TB2
Max 200 Feet Max 500 Feet
connection at
connection
(60 meters) (150 meters)
Circuit Board
Probe Housing
Wire Color
Wire Number
in Electronics
Green/White
1
1
1
White/Green
2
2
2
Blue/White
3
3
3
White/Blue
4
4
4
Brown/White
5
5
5
White/Brown
6
6
6
Orange/White
7
7
7
White/Orange
8
8
8
9
9
9
10
10
10
Shield
Not used
11
Shield
12
4.
5.
6.
7.
8.
9.
The probe housing contains a remote board with terminal
blocks for ease of wiring between the probe and the electronics. An 8-wire (Belden 8104) or 10-wire (Belden
8305) shielded interconnecting cable from the probe housing to the instrument is required. Refer to Figure 9 for
wiring connections inside the probe housing and for
remote cable wiring from the probe housing to the electronics housing.
Remove electrical power to the instrument.
Remove and unplug the display module if provided.
Remove the two hex head fasteners using a 1⁄4" socket. This
will remove a module consisting of the processor circuit
board and the power fieldbus circuit board.
Unplug the electrical connections at J1 of the power fieldbus board.
Probe wiring connections are made to TB1 on the same
side of the power fieldbus circuit board. Refer to Figure 9.
Reattach the electrical connections to J1.
Reassemble the circuit boards in the enclosure. Make sure
that the probe wiring does not get pinched between the
standoffs on the circuit board and the attachment lugs in
the housing.
Reinstall the display module if provided.
Apply power to the instrument.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.5
Configuring the Transmitter
The TA2 electronics are easy to set up and configure to the
user’s specifications. When specified with the order, the
configuration settings are programmed into the instrument
at the factory. If not, or if the user wants to modify the
configuration settings, follow these instructions for configuring the instrument. The primary structure of the software
is divided into eight main groups:
Measured Values
View Selected Values
Basic Config
Configuration of essential
programming information
I/O Config
Configure all input/output
functions
Advanced Config
Additional configuration which
affects the unit operation
Device Info
Provides information on
the instrument
Diagnostics
Factory Configuration
Run Mode
Test operation of instrument
Factory calibration information
Normal operating mode
All necessary information can be input using the 4-button
keypad located on the display module.
NOTE: The Display Module can be rotated in 90-degree increments.
Remove cover, remove the two screws holding the display
module, rotate to desired location and reattach display module.
See Figure 10.
3.5.1 Initialization
When power is first applied to the TA2 there is an initialization period for the sensor to reach stabilization. During
this time the TA2 display (if provided) will read “Initializing.”
Only after the sensor has stabilized and a valid flow measurement is obtained will the display show a flow measurement. The output signal will be active and the totalizer
will begin counting.
Figure 10
display Module can be Rotated
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
13
3.5.2 Operator Keypad
The TA2 has a local user interface using a 2-line ¥ 16 character liquid crystal (LCD) and 4-push-button keypad.
All measurement data and configuration information is
shown in the LCD.
The TA2 is configured via a “tree” type menu structure
where it is easy to access branches of the tree to configure
the various parameters. The four push buttons have different functions for various operating modes in the menu
structure.
3.5.2.1 Menu Traversal Mode
Push Button
Keystroke Action
Up
Moves to the previous menu
Down
Moves to the next menu
Back
Moves back one level to the previous higher branch
Enter
Enters into the lower level branch
3.5.2.2 Item List Selection
Data is selected from a pre-specified list of entries. When
Enter
key is depressed on a menu item the following
modes are available. The symbol (◊) is shown on the right
most character of the 2nd line to indicate that various
selections are available.
Push Button
Keystroke Action
Up
Moves to the previous selection in the list
Down
Moves to the next selection in the list
Back
Returns to the previous mode without changing selection
Enter
Accepts the selection and returns to the menu traversal mode
NOTE: If a key is not pressed for 5 minutes, the display returns to the
run mode.
14
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.5.2.3 Numeric Entry
The Numeric Entry Mode is used to enter numeric values.
This mode is accessed when the Enter Key is pressed on a
menu item that requires entry of a numeric value. Data is
entered at the cursor position:
Push Button
Keystroke Action
Up
Moves to the next digit (0,1,2,3…9). If held down the digits
scroll until the push button is released.
Down
Moves to the next digit (9,8,7,6…0). If held down the digits
scroll until the push button is released.
Back
Moves the cursor to the left and deletes the digit. If the cursor
is located at the leftmost position the entire value is deleted
and the previous saved value is displayed.
Enter
Moves the cursor to the right. If the cursor is located at a
blank position, the new value is saved and the display returns
to the previous menu.
NOTE: In numeric entry mode, the leftmost position will show "+" if a
negative value can be entered. To enter a negative value,
move the cursor to left with the back button and toggle
between “+” and “–” using the
and
arrows. If only positive values are valid, first digit is entered at leftmost position
with no sign indicated. A decimal point can be entered after
the first digit is entered.
3.5.2.4 Character Data Entry Mode
This mode is most commonly used when entering a new
local tag line into the TA2. The local tag as shipped from
the factory is “MAGNETROL TA2” and can be changed
to permit the user to identify the instrument with a the
actual tag line of the instrument or the service. When this
mode is entered, a cursor marks the leftmost character on
the 2nd line.
Push button
Up
Keystroke Action
Moves to the next character (Z, Y, X, W, …). If held down
the characters scroll until the push button is released.
Down
Moves to the previous character (A, B, C, D, …). If held down
the characters scroll until the push button is released.
Back
Moves the cursor to the left. If the cursor is located at the
leftmost position the screen is exited without changing the
original characters.
Enter
Moves the cursor to the right. If the cursor is located at the
rightmost position the new value is saved and the display
returns to the previous menu.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
15
3.5.2.5 Increment/Decrement Digit Mode
The Increment/Decrement digit entry mode is used with
some screens for changing numeric values.
Push button
Keystroke Action
Up
Increases the displayed value. If held down the digits scroll
until the push button is released. Depending upon what
screen is being revised, the increment amount may change by
a factor of 10 after the value has been increased 10 times.
Down
Decreases the displayed value. If held down the digits scroll
until the push button is released. Depending upon what
screen is being revised, the decrement amount may change
by a factor of 10 after the value has been decreased 10 times
Back
Return to the previous menu without changing the original
value which is immediately redisplayed.
Enter
Accepts the displayed value and returns to the previous menu.
3.5.3 Password
A password protection system restricts access to portions of
the user interface menu which affect the unit’s operation
and configuration. The default user password is 0.
If desired, a new user password can be entered in the
Advanced Configuration in the New Password screen.
The password can be changed to any numerical value up
to 255.
Per revised password policy, user authority is no longer
granted from the Fieldbus interface if the user password
has been set to a non-zero value. It will be necessary to
enter the user password to access user parameters from the
Host system.
16
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
Home
TA2 user Interface
Menu Hierarchy Overview
Measured Values
See Page 19
Basic Config
Flow Area
See Page 21
I/O Config
See Page 22
Totalizers
See Page 22
Advanced Config
See Page 24
Device Info
See Page 26
Diagnostics
History
See Page 27
Factory Config
Signal
See Page 31
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
See Page 28
See Page 28
17
3.5.4 Run Mode
The Run Mode is the normal display for the TA2. The user
has the option of selecting displayed values such as Flow,
Mass, Process Temperature, Totalized Flow, AI output,
IT output values and local tag. These values will rotate at
2-second intervals on the display during operation.
AI output and IT output values will be blank until configured by the corresponding block. Run Mode appears on
power-up or after a 5-minute period with no keypad activity.
The main menu is used to access the various parameters
and sub-menus. From the Run mode, press any key to
enter the Main Menu. The following describes the various
selections available.
3.5.5 Measured Values
The Measured Values menu is used to display the current
values measured by the TA2 and determine which parameters will be shown on the display during run mode. Enter
this section by pressing
when Measured Values is displayed from the Main Menu.
From the factory, the Home Menu will show the tag line
and the flow value. To add or remove parameters from the
Home Menu press the
key. Use the
or
keys to
add (On Main Disp) or remove (Off Main Disp) variables.
To return to the rotating Home Menu, simply press the
key twice.
18
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
start
Model TA2 [FF]
Ver 2.0
* [label] *
[string or value]
UP
DN
UP
DN
ENT
DEL
Measured Values
to select
UP
DN
ENT
DEL
Rotating screens
* Status *
[fault or warning]
Shown only if fault or warning
DEL
DEL
UP
DN
UP
DN
DEL
Basic Config
to select
UP
DN
Flow
nnn units
Mass
nnn units
UP
DN
DEL
Process Temp
nnn units
ENT
ENT
ENT
On Main Disp
Off Main Disp
UP
DN
I/O Config
to select
ENT
DEL
UP
DN
R Totalizer
nnnn units
ENT
UP
DN
DEL
Advanced Config
to select
ENT
DEL
UP
DN
UP
DN
DEL
Device Info
to select
NR Totalizer
nnnn units
DEL
AI 1 Out _ _ _ _
nnnn units
UP
DN
UP
DN
DEL
DEL
Diagnostics
to select
UP
DN
ENT
ENT
ENT
ENT
AI n Out _ _ _ _
nnnn units
UP
DN
DEL
IT Out
nnnn units
UP
DN
DEL
TA2 User Interface
Home and Associated Menus
Factory Config
to select
DEL
UP
DN
Local Tag
Magnetrol TA2
UP
DN
DEL
Previous Menu
to select
UP
DN
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
19
3.5.6 Basic Configuration Menu
The Basic Configuration menu is used to select the display units and enter specific information for the
application. Access this section by pressing Enter when Basic Config is displayed from the Main Menu.
To calculate the flow or mass, it is necessary to accurately enter the inside area of the pipe or duct. If the
pipe or duct is circular, simply enter the inside diameter; the cross sectional area of the pipe is automatically calculated. If the duct is rectangular, skip over the entry of diameter, and directly enter the cross
sectional area in the area section. The instrument will then back calculate an equivalent diameter.
UP
DN
Basic Config
–> to select
ENT
DEL
Language
[selection]
ENT
DEL
English
Francais
Deutsch
Español
РуссКий
ENT
DEL
SCFM
SCFH
MM SCFD
Nm3/h
Nl/h
ENT
DEL
lb/H
lb/M
kg/h
kg/m
ENT
DEL
Fahrenheit
Celsius
ENT
DEL
lb/ft3
kg/m3
ENT
DEL
inches
feet
meters
millimeters
ENT
DEL
in2
ft2
m2
mm2
ENT
DEL
SCFM
SCFH
MM SCFD
Nm3/h
Nl/h
ENT
DEL
Pipe ID
[selection]
UP
DN
DEL
Flow Units
[selection]
UP
DN
DEL
Mass Units
[selection]
UP
DN
DEL
Temp Units
[selection]
UP
DN
DEL
Density Units
[selection]
UP
DN
DEL
Diameter Units
[selection]
TA2 User Interface
System Configuration Menu
UP
DN
DEL
Area Units
[selection]
UP
DN
DEL
User Units
[selection]
UP
DN
DEL
DEL
Flow Area
to select
UP
DN
UP
DN
Previous Menu
to select
Area
[selection]
lb/h
lb/m
kg/h
kg/m
ENT
DEL
decimal entry
in selected units
ENT
DEL
decimal entry
in selected units
Configuration Parameter
Language
Flow Units
Mass Units
Temperature Units
Density Units
Diameter Units
Area Units
Explanation
The TA2 can be configured in English (default value), French, German, Spanish or Russian
Selection of SCFM, SCFH, MM SCFD, Nm3/h, Nl/h
Selection of lb/h, lb/min, kg/h, kg/min
Selection of Fahrenheit, Celsius
lb/ft3, kg/m3
Selection of inches, feet, meters, millimeters
in2 (square inches), ft2 (square feet), m2 (square meters), mm2 (square mm)
User Units
SCFM, SCFH, MM SCFD, Nm3/h, Nl/h, lb/h, lb/min, kg/h, kg/min. Units used with
install factors. See Advance Configuration Menu.
Flow Area
The TA2 requires entry of the pipe size or flow area to properly calculate the flow rate.
This can either be entered by specifying the ID of the pipe or the flow body or by entering
the flow area. Units of measurement are specified above.
20
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.5.7 I/O Configuration Menu
The configuration menu for the Totalizers is shown on page 23.
I/O Config
to select
DEL
DEL
Totalizers
to select
ENT
DEL
UP
DN
see page 23
for Totalizer
Configuration
Damping (0 –15)
[entered value]
ENT
DEL
[inc/dec]
0–15
UP
DN
DEL
Previous Menu
to select
TA2 User Interface
I/O Configuration Menu
Configuration Parameter
Explanation
Totalizer
The TA2 provides both a resettable and a non-resettable totalizer.
Configuration information on the totalizers is found on page 23.
Damping
Increasing the Damping will smooth the TA2 display of the measured values. This
may be used in cases when turbulence is causing fluctuations in the measurement.
The damping value is expressed in time constants. A one-second time constant
means that with a step change in flow, the measured flow value will reach
approximately 63% of the new value in one second and approximately 99% of the
new value in five seconds. The lower limit is 0 which means no damping (other than
the inherent response time of the sensor); the upper limit is 15 seconds.
3.5.8 Totalizer
The totalizer provides seven digits of resolution. In the
event of a fault indication, the totalizer will not accumulate. When the value in the totalizer exceeds 9,999,999,
the totalizer will rollover. The Total Time will keep counting.
Both the Resettable and Non-Resettable totalizers have
individual multiplier factors which can be used to prevent
too frequent rollover and potential loss of data.
The Totalizer data is stored in nonvolatile memory, eliminating the need of backup batteries. Data is written hourly.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
21
UP–DN
Totalizers
to select
R Total Mode
[selection]
ENT
DEL
ENT
DEL
UP–DN
R Total Units
[selection]
DEL
ENT
DEL
Disabled
Enabled
SCF
Nm3
Nl
lb
kg
UP–DN
R Total Mult
[selection]
DEL
ENT
DEL
UP–DN
1
10
100
1,000
10,000
100,000
R Totalizer
nnnnnnn units
DEL
UP–DN
DEL
R Total Time
nnnnnh nnm nns
UP–DN
R Totalizer
Reset
DEL
ENT
DEL
UP–DN
NR Total Units
[selection]
DEL
ENT
DEL
Are You Sure?
[selection]
ENT
DEL
No
Yes
SCF
Nm3
Nl
lb
kg
UP–DN
NR Total Mult
[selection]
DEL
UP–DN
1
10
100
1,000
10,000
100,000
NR Totalizer
nnnnnnn units
DEL
DEL
ENT
DEL
UP–DN
TA2 User Interface
I/O Configuration Menu
NR Total Time
nnnnnh nnm nns
Totalizers
UP–DN
DEL
Previous Menu
to select
Configuration Parameter
Explanation
R Total Units
The R Totalizer Units permits selection of the units for the resettable totalizer. Select SCF (Standard Cubic Feet),
Nm3 (Normal Cubic Meters), Nl (Normal Liters), lb (Pounds), or kg (Kilograms).
R Total Mode
R Total Mode allows the user to enable or disable the Resettable totalizer. The default mode is Enabled.
R Total Mult
The R Total Mult permits selection of the multiplier to be used for the resettable totalizer. The function of the
totalizer multiplier is such that if the units are SCF and the multiplier is set to 100, then the totalizer will increment for each 100 SCF. The default value is 1.
R Totalizer
This is a read-only screen that displays the present value of the resettable totalizer.
R Total Time
This is a read-only screen that displays the time that has elapsed since the resettable totalizer was last reset.
R Totalizer Reset
The R Totalizer Reset screen allows the user to reset the total flow and elapsed time of the resettable totalizer to zero.
Since this action will permanently lose this data, a second chance is provided with an “Are you sure” selection.
NR Total Mult
The NR Total Mult permits selection of the multiplier to be used for the Non-resettable totalizer. The function
of the totalizer multiplier is such that if the units are SCF and the multiplier is set to 100, then the totalizer will
increment for each 100 SCF. The default value is 1000.
NR Total Units
The NR Totalizer Units permits selection of the units for the non-resettable totalizer. Select SCF (Standard
Cubic Feet), Nm3 (Normal Cubic Meters), Nl (Normal Liters), lb (Pounds), or kg (Kilograms).
NR Totalizer
This is a read-only screen that displays the value of the Non-resettable totalizer.
NR Total Time
This is a read-only screen that displays the time that corresponds to the value of the NR Totalizer.
22
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.5.9 Advanced Configuration Menu
The Advanced Configuration menu sets advanced parameters that may occasionally be required for
proper operation of the TA2.
UP
DN
Advanced Config
to select
ENT
DEL
New Password
[entered value]
ENT
DEL
UP
DN
DEL
Install Factors
to select
decimal entry
UP
DN
ENT
DEL
A+Bx+Cx^2, A=
[entered value]
ENT
DEL
decimal entry
UP
DN
UP
DN
DEL
A+Bx+Cx^2, B=
[entered value]
ENT
DEL
decimal entry
DEL
A+Bx+Cx^2, C=
[entered value]
ENT
DEL
decimal entry
ENT
DEL
decimal entry
in selected
units
ENT
DEL
1 atm
1 bar
UP
DN
DEL
Previous Menu
to select
UP
DN
DEL
GasCal Table A /B
[selection]
ENT
DEL
UP
DN
DEL
Auto Switching
[selection]
UP
DN
ENT
DEL
UP
DN
DEL
Previous Menu
to select
STP Conditions
to select
Table A
Table B
Disabled
Enabled
UP
DN
ENT
DEL
Temperature
[entered value]
UP
DN
UP
DN
DEL
UP
DN
Pressure
[selected value]
UP
DN
TA2 User Interface
Advanced Configuration Menu
DEL
Previous Menu
to select
UP
DN
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
23
Configuration Parameter
Explanation
New Password
The default password is 0. If desired, a different password can be entered in the
New Password screen. The password can be changed to any numeric value up to
255. The display will show an encrypted value. Contact MAGNETROL Technical
Support with this value to determine the actual password which was last entered.
Install Factors
Permits the user to enter field adjustment factors to make adjustments to the flow
measurement. These might be due to flow profiles considerations. The formula is a
second order polynomial equation where adjusted flow = a + bx + cx2 where x is
in units selected in the Transducer Block under “USER_UNIT.” Linear adjustments
(changing the B factor) are the simplest. Ensure that units of measurement are
finalized before Install Factors are determined. Changing units of measurement
after Install Factors are calculated can result in reset of the Install Factors and a
warning message.
Gas Cal Table A /B
Permits the user to select calibration for two different gases. If specifically ordered
with calibration for two different gases, then each gas table will represent the calibration data for each gas. If calibrated for a gas other than air, the “A” table
will represent the calibration data for the specified gas and the “B” table will
represent the calibration data for air within a selected calibration range. The two
gas tables can also be used for different ranges of the same gas.
Auto Switching
Allow automatic switching between a low flow Table A and a high flow Table B. It
is necessary to have a dual calibration and distinct flow rate differences between
tables in order to perform switching function. With Foundation Fieldbus version, it
is only possible to Enable from the display.
STP Conditions
Permits the user to select STP (Standard Temperature and Pressure) conditions.
Also referred to as Standard Conditions or Normal Conditions. Any value for temperature can be entered. Pressure can be selected to be 1 Atmosphere or 1 Bar.
Adjustment of the STP conditions will affect the flow calculations.
24
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.5.10 device Information
This section is used to display information about the device. Also in this section is the ability for the
user to enter a local tag describing the location of the instrument.
UP
DN
Device Info
to select
ENT
DEL
Input Local Tag
[entered value]
ENT
DEL
alphanumeric
entry
(16 chars)
UP
DN
DEL
Magnetrol S/N
[value]
UP
DN
DEL
Model TA2 FF
[Ver 2.0 a]
UP
DN
DEL
Device Addr
xxx
UP
DN
DEL
Date Code
xxxxxxxxxxx
UP
DN
DEL
TA2 User Interface
Device Information Menu
Previous Menu
to select
UP
DN
Configuration Parameter
Explanation
Input Local Tag
From the factory this tag is shown as “MAGNETROL TA2” but this can be
changed to describe the application or the flow transmitter number. The tag can
contain a maximum of 16 characters. All upper and lower case letters, numbers
and other characters are provided for the tag. See section 3.5.2.4 for details on
entering characters.
MAGNETROL S/N
Displays the MAGNETROL serial number of the instrument. This is needed if
information on the specific instrument is desired in the future.
Model TA2 FF
Provides information on the firmware used in this version of the TA2.
Device Addr
Address assigned to the instrument by the host. Default is 248.
Date Code
Factory Parameter to provide unique identification.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
25
3.5.11 diagnostics Menu
The Diagnostics Menu contains both informational items and diagnostic screens that can assist in
obtaining information on the operation of the unit and troubleshooting if faults or warnings occur.
UP
DN
Diagnostics
to select
ENT
DEL
ENT
DEL
Previous Menu
to select
History
[current status]
UP
DN
Event nn
[Diagnostic Text]
ENT
DEL
Eventnn Occurred
nnnnnh nnm nnsec
ENT
DEL
UP
DN
DEL
Run Time
nnnnh nnm nnsec
UP
DN
Run-time since
history was reset.
Eventnn Duration
nnnnnh nnm nnsec
ENT
DEL
UP
DN
DEL
History
Reset
ENT
DEL
Are You Sure?
[selection]
ENT
FxdSgl xxx mW
xxxx xx units
ENT
DEL
No
Yes
UP
DN
DEL
Signal xxx mW
xxxx xx units
DEL
UP
DN
DEL
Delta Temp
[temp value]
UP
DN
DEL
TA2 User Interface
Diagnostics Menu
Heater Setting
[integer value]
UP
DN
DEL
Max Process Temp
[max value]
ENT
DEL
Reset?
[selection]
ENT
DEL
No
Yes
ENT
DEL
Reset?
[selection]
ENT
DEL
No
Yes
UP
DN
DEL
Electronics Temp
[current value]
UP
DN
DEL
see next page
26
Max Elec Temp
[max value]
UP
DN
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.5.11 diagnostics Menu (cont.)
Configuration Parameter
Explanation
History
Displays the present status and the sequence in which any diagnostic events may
have occurred. The second line of the menu shows the present status. If there are
no present diagnostic events, this screen will have History on the top line and OK
on the bottom line. Pressing
descends to a lower menu level to view diagnostics events that have been logged in History. Each “event” is indicated by the
event number label. The first event number label presented corresponds to the
most recent diagnostic event. This event number also indicates the number of
diagnostic events currently in the History submenu. Pressing the
or
will
cycle between the relative time of the occurrence and the duration of the event.
Run Time
Displays the total time that the device has been powered. The run time is reset
to zero when the History is reset.
History Reset
Provides a means to clear all of the diagnostic events that are stored in the
History log.
Signal
Provides a live signal of the mW reading from the sensor. Also shown on the second line is the calculated flow rate. This is based on the units selected in the
Transducer Block under “USER_UNIT.” This data can be compared against the
original calibration document to determine if there has been any change in the
configuration. Pressing
enters the Fixed Signal Mode. When in this mode,
pressing the
or
permits the user to change the signal; the TA2 then calculates the flow which corresponds with this signal. Press
to return to the main
menu. NOTE: During fixed signal mode the Totalizers will stop operation and the
display will show the “In Test Mode” message. The Transducer Block will be taken
Out of Service (OOS).
Delta Temp
Displays the temperature difference between the two RTDs.
Heater Settings
Displays the current value sent to the heater. This can be compared against an
actual reading which can be obtained from connections on the circuit board.
See section 5.3.1.
Maximum Process Temp
Displays the maximum temperature which the sensor has recorded.
Electronic Temp
Displays the current temperature in the electronics enclosure.
Max Elect Temp
Displays the maximum temperature which the electronics have recorded.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
27
3.5.11 diagnostics Menu (cont.)
UP
DN
DEL
Min Elec Temp
[min value]
Reset?
[selection]
ENT
DEL
UP
DN
DEL
Probe Status
to select
ENT
DEL
No
Yes
UP
DN
Temp Sensor
OK/Shorted/Open
ENT
DEL
TA2 User Interface
Diagnostics Menu
UP
DN
Flow Sensor
OK/Shorted/Open
UP
DN
Probe Heater
OK/Shorted/Open
UP
DN
UP
DN
Previous Menu
to select
UP
DN
UP
DN
DEL
ENT
Zero Power Test
to test
DEL
UP
DN
Delta T Unstable
[temperature]
DEL
UP
DN
DEL
Delta T Stable
[temperature]
UP
DN
Amb T Unstable
[temperature]
DEL
Ambient T Stable
[temperature]
UP
DN
UP
DN
UP
DN
UP
DN
DEL
Low Cal Validate
to test
ENT
DEL
Delta T Unstable
[temperature]
Saved Test DeIT
[temp] [temp]
ENT
DEL
Save Temp?
[selection]
ENT
DEL
UP
DN
DEL
UP
DN
DEL
Amb T Unstable
[temperature]
No
Yes
UP
DN
28
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.5.11 diagnostics Menu (cont.)
Configuration Parameter
Explanation
Min Elect Temp
Displays the minimum temperature which the electronics have recorded.
Probe Status
Press
to select and then the
or
arrows to scroll between the Temp
Sensor, Flow Sensor, and Probe Heater. If the probe is operational, the display
will show “OK”. If there is a problem with the probe, then the diagnostics will
show either “Shorted” or “Open.” Press
to return to the main menu.
Zero Power Test
Diagnostic test. During this test the heater is turned off and the sensor is given
time for the sensors to stabilize. The temperature difference between the sensors
is displayed. See section 5.3.2 for more information on this test.
Low Cal Validate
Hi Cal Validate
The Low Cal Validate and the Hi Cal Validate test will verify that the heat transfer
characteristics of the sensor have not changed. This test will verify that the unit
is still within calibration. The tests are performed when off-line with the TA2 in air
and in a water bath. See section 5.3.3 for more information on this test.
UP
DN
DEL
UP
DN
ENT
Hi Cal Validate
to test
DEL
Delta T Unstable
[temperature]
UP
DN
Saved Test DeIT
[temp] [temp]
ENT
DEL
Save Temp?
[selection]
ENT
DEL
DEL
No
Yes
DEL
UP
DN
DEL
Amb T Unstable
[temperature]
UP
DN
Previous Menu
to select
TA2 User Interface
Diagnostics Menu (cont)
UP
DN
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
29
3.5.12 Factory Configuration
UP
DN
Factory Config
to select
ENT
DEL
Probe Params
to select
ENT
DEL
see section 3.5.13
ENT
DEL
see section 3.5.14
ENT
DEL
see section 3.5.14
UP
DN
DEL
Cal Parameters A
to select
UP
DN
DEL
Cal Parameters B
to select
UP
DN
DEL
Control Params
to select
UP
DN
ENT
DEL
Coeff Ratio
[entered value]
ENT
DEL
decimal entry
ENT
DEL
decimal entry
ENT
DEL
decimal entry
ENT
DEL
decimal entry
UP
DN
DEL
Slope
[entered value]
UP
DN
UP
DN
DEL
Power Predictor
[entered value]
UP
DN
DEL
Module Params
to select
DEL
Factory Param (1-5)
[entered value]
ENT
DEL
Heater Calib
Factory configuration only.
UP
DN
DEL
NSPValue
[entered value]
UP
DN
DEL
Previous Menu
to select
ENT
DEL
decimal entry
If the password timer has
expired, [entered value]
will display the encrypted
value of the password.
TA2 User Interface
Factory Configuration Menu
UP
DN
Configuration Parameter
Explanation
Probe Params
Provides the probe calibration parameters—see separate section 3.5.13.
Cal Parameters A
Provides the calibration parameters for Gas A—see separate section 3.5.14.
Cal Parameters B
Provides the calibration parameters for Gas B (if specified) —
see separate section 3.5.14.
Control Parameters
Factory set parameters which should only be changed under direction
of MAGNETROL
Module Params
Module Parameters—Factory set parameters
30
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.5.13 Probe Parameters
These parameters are specific characteristics defining the operation of the probe.
UP
DN
Probe Params
to select
ENT
DEL
Sensor Type
[selection]
ENT
DEL
TXR
TXS
TXU
TFT
Spare 1
Spare 2
Spare 3
ENT
DEL
decimal entry
ENT
DEL
decimal entry
UP
DN
DEL
To
[entered value]
UP
DN
DEL
Fo
[entered value]
UP
DN
UP
DN
DEL
Probe Temp Calib
[OK/Bad/Calib
Required]
ENT
DEL
UP
DN
UP
DN
DEL
Previous Menu
to select
Temp Stabilizing
[lo temp ADC cnt] Temp
DEL
DEL
ENT
Enter Probe Temp
[temp reading]
ENT
DEL
Temp Stabilizing
[lo temp ADC cnt] Flow
UP
DN
decimal entry
TA2 User Interface
Factory Configuration Menu
Probe Parameters
Configuration Parameter
Explanation
Sensor Type
Selects the type of sensor used with the TA2. Various sensors have different
methods of calculating the flow rate.
To
Calibration parameter determined when calibrating the RTDs.
Fo
Calibration parameter determined when calibrating the RTDs.
Probe Temp Calib
Used during calibration of the RTDs. See section 6.3.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
31
3.5.14 Calibration Parameters
There are two separate menus for Calibration Parameters titled Cal Parameters A and Cal Parameters B.
These two different sets of Calibration Parameters are used when the TA2 is calibrated on two gases
or for two different ranges. If the unit is calibrated for air, then only Calibration Parameter A is used.
If the TA2 is calibrated for a different gas, then the calibration parameters for the specified gas is contained
in Cal Parameters A, and the air calibration parameters are contained in Calibration Parameters B.
There is an identical menu structure for Cal Parameters B.
Cal Parameters A
to select
ENT
DEL
Calib Table A
nn Points
ENT
DEL
Table A Pt nn Pwr
[entered value]
UP
DN
ENT
Table A Pt nn Vel
[entered value]
UP
DN
DEL
Gas Parameters
to select
[inc/dec pt #]
ENT
DEL
ENT
DEL
see page 39
ENT
DEL
decimal entry
ENT
DEL
decimal entry
ENT
DEL
decimal entry
ENT
DEL
decimal entry
UP
DN
UP
DN
DEL
Set Point
[entered value]
UP
DN
DEL
Zero Flow Signal
[entered value]
UP
DN
DEL
Low Flow Cutoff
[entered value]
UP
DN
DEL
Calib Pipe Area
to select
UP
DN
DEL
Previous Menu
to select
TA2 User Interface
Factory Configuration Menu
Cal Parameters A /B
UP
DN
Configuration Parameter
Explanation
Calib Table A
nn Points
Provides actual calibration data points obtained during the calibration.
Gas Parameters
See Section 3.5.15.
Set Point
Indicates the temperature difference which the TA2 is attempting to maintain.
This parameter should only be changed under direction of MAGNETROL.
Zero Flow Signal
Used to adjust the zero flow data point, if necessary, for application-specific related issues.
See Troubleshooting Section 5.2.
Low Flow Cutoff
The TA2 will ignore flow rates below this value. This can be changed for application-specific
issues. See Troubleshooting Section 5.2.
Calibration Pipe Area
See Recalibration Section 6.4.
32
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3.5.15 Gas Parameters
Contains specific information on the gas which are used in the TA2 calculations.
UP
DN
Gas Parameters
to select
ENT
DEL
Temp Corr TCC-A
[entered value]
ENT
DEL
decimal entry
ENT
DEL
decimal entry
ENT
DEL
decimal entry
ENT
DEL
decimal entry in
chosen units
UP
DN
DEL
Temp Corr TCC-B
[entered value]
UP
DN
DEL
Temp Corr TCC-C
[entered value]
UP
DN
DEL
Gas Density
[entered value]
UP
DN
DEL
Air Equivalency
to select
ENT
DEL
see section 3.5.16
UP
DN
DEL
Previous Menu
to select
UP
DN
TA2 User Interface
Factory Configuration Menu
Gas Parameters menu exists for both Gas A and Gas B
Configuration Parameter
Explanation
TCC-A, TCC-B TCC-C
Gas-specific factors used for temperature compensation. This parameter should
only be changed under direction of MAGNETROL.
Gas Density
Provides the density of the gas at the specified STP (Standard Temperature
and Pressure) conditions.
Air Equivalency
Contains factors for equation which relates the gas flow to the flow of air.
Contact MAGNETROL for factors specific to different gases.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
33
3.5.16 Air Equivalency Calibration
The Air Equivalency calibrations permits the use of an air calibration and then, using the MAGNETROL
historic data base, relate the flow of air to the flow of gas. The equations use a polynomial curve fit.
A fault will occur if the curve fit becomes non-monotonic (signal decreases with increasing flow)
which can occur if operating outside the data range. Consult MAGNETROL regarding proper sizing with
Air Equivalency calibrations. The user may contact MAGNETROL to obtain air equivalency factors
for various gases. These values should only be used when the TA2 was calibrated on air. If the
calibration data in the Calibration Table is for a different gas, the results are invalid.
Configuration Parameter
Explanation
Enable/Disable
Enables or Disables the Air Equivalency calculations
Ag - Eg
Factors in a polynomial equation in the form of A + Bv + Cv2 + Dv3 + Ev4
where v is the mass velocity. Contact MAGNETROL for factors.
UP
DN
Air Equivalency
to select
ENT
DEL
Air Equiv Mode
[selection]
ENT
DEL
Disabled
Enabled
ENT
DEL
decimal entry
ENT
DEL
decimal entry
ENT
DEL
decimal entry
ENT
DEL
decimal entry
ENT
DEL
decimal entry
UP
DN
DEL
Gas Coeff Ag
[entered value]
UP
DN
DEL
Gas Coeff Bg
[entered value]
UP
DN
DEL
Gas Coeff Cg
[entered value]
UP
DN
DEL
Gas Coeff Dg
[entered value]
UP
DN
DEL
Gas Coeff Eg
[entered value]
UP
DN
DEL
Previous Menu
to select
UP
DN
TA2 User Interface
Factory Configuration Menu
Air Equivalency
Air Equivalency menu exists for both Gas A and Gas B
34
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
4.0
Function Blocks
4.1
Overview
The Model TA2 is a Thermal Mass Flow Meter with nine
FOUNDATION fieldbus™ Function Blocks (one Resource Block,
one Transducer Block, five Analog Input Blocks, one
PID Block, and one Integrator Block). The idea of Function
Blocks, which a user can customize for a particular application, is a key concept of Fieldbus topology. Function Blocks
consist of an algorithm, inputs and outputs, and a userdefined name.
The RESOURCE Block contains specific information on
the Enhanced TA2 and firmware.
The TRANSDUCER Block output is available to the network through the ANALOG INPUT blocks.
The ANALOG INPUT Blocks (AI) take the TRANSDUCER Block measured values and makes them available as an
analog value to other function blocks. The AI blocks have
scaling conversion, filtering, and alarm functions.
The INTEGRATOR Block will accumulate the flow or
mass over time providing a value of the Totalized Flow.
The PID Block provides logic for
Proportional/Integral/Derivative control.
4.1.1 universal FOundATIOn fieldbus™ Block Parameters
The following are general descriptions of the parameters
common to all blocks. Additional information for a given
parameter is described later in that specific block section.
ST_REV (static data revision): a read only parameter that
gives the revision level of the static data associated with the
block. This parameter will be incremented each time a static
parameter attribute value is written and is a vehicle for
tracking changes in static parameter attributes.
TAG_DESC (tag descriptor): a user assigned parameter
that describes the intended application of any given block.
STRATEGY: a user assigned parameter that identifies
groupings of blocks associated with a given network connection or control scheme.
ALERT_KEY: a user assigned parameter which may be used
in sorting alarms or events generated by a block.
MODE_BLK: a structured parameter composed of the
actual mode, the target mode, the permitted mode(s), and
the normal mode of operation of a block.
• The actual mode is set by the block during its execution to
reflect the mode used during execution.
• The target mode may be set and monitored through the
mode parameter.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
35
• The permitted modes are listed for each block.
• The block must be in an automatic mode for normal operation.
NOTE: The MODE_BLK target parameter must be OOS (out of service)
to change configuration and calibration parameters in that function block (when in OOS, the normal algorithm is no longer executed and any outstanding alarms are cleared).
All blocks must be in an operating mode for the device to operate. This requires the Resource Block to be in “AUTO” and the
Transducer Block to be in “AUTO” before the Function Blocks
can be placed in a mode other than OOS (out of service).
BLOCK_ERR: a parameter that reflects the error status of
hardware or software components associated with, and
directly affecting, the correct operation of a block.
NOTE: A BLOCK_ERR of “Simulation Active” in the Resource Block
does not mean simulation is active—it merely indicates that the
simulation (hardware) enabling jumper is present.
See section 4.2.2 and 5.1 for further information on the
simulation mode.
4.2
Resource Block
The RESOURCE Block contains data specific to the
Enhanced Model TA2 transmitter, along with some
information about the firmware.
NOTE: The Resource Block has no control function.
MODE_BLK: Must be in AUTO in order for the remaining blocks in the transmitter to operate.
NOTE: A Resource Block in “out of service” mode will stop all function
block execution in the transmitter.
RS_STATE (Resource State): identifies the state of the
RESOURCE Block state machine. Under normal operating
conditions, it should be “On-Line.”
TEST_RW: Read/Write test parameter used for conformance
testing.
DD_RESOURCE: a string identifying the tag of the
resource that contains the Device Description for this device.
MANUFAC_ID: contains the MAGNETROL INTERNATIONAL FOUNDATION fieldbus™ manufacturer’s ID number, which is 0x000156.
DEV_TYPE: the model number of the THERMATEL
Enhanced Model TA2 transmitter (0x0004). It is used by
interface devices to locate the Device Descriptor (DD) file
for this product.
DEV_REV: contains the device revision of the
THERMATEL Enhanced Model TA2 transmitter. It is used
by interface devices to correctly select the associated DD.
36
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
DD_REV: contains the revision of the DD associated with
the version of firmware in the THERMATEL Enhanced
Model TA2 transmitter. It is used by interface devices to
correctly select the associated DD.
GRANT_DENY: Options for access to parameters by DCS.
HARD_TYPES: Types of hardware available as channels.
RESTART: Default and Processor selections are available.
Default will reset the Model TA2 to the established block
configuration.
NOTE: As RESTART DEFAULT will set most block configuration
parameters to their default values. Devices need to be reconfigured following activation of this function.
FEATURES: a list of the features available in the transmitter. The Model TA2 features include Reports, and Soft
Write Lock.
FEATURES_SEL: allows the user to turn Features on or off.
CYCLE_TYPE: identifies the block execution methods that
are available.
CYCLE_SEL: allows the user to select the block execution
method.
MIN_CYCLE_T: the time duration of the shortest cycle
interval. It puts a lower limit on the scheduling of the resource.
MEMORY_SIZE: Size of available memory in K bytes.
NV_CYCLE_T: the minimum time interval between copies
of non-volatile (NV) parameters to NV memory. NV memory is only updated if there has been a significant change in
the dynamic value and the last value saved will be available
for the restart procedure. A value of “0” means it will never
be automatically copied. Entries made by human interface
devices to NV parameters are copied to non-volatile memory
at the time of entry.
NOTE: After completing a large copy, allow several seconds before
removing power from the THERMATEL Enhanced Model TA2
transmitter to ensure that all data has been saved.
FREE_SPACE: shows the amount of available memory for
further configuration. The value is zero percent in a preconfigured device.
FREE_TIME: the amount of the block processing time that
is free to process additional blocks.
SHED_RCAS: the time duration at which to give up computer writes to function block RCas locations. Shed from
RCas will never happen when SHED_RCAS = 0.
SHED_ROUT: the time duration at which to give up computer writes to function block ROut locations. Shed from
ROut will never happen when SHED_ROUT = 0.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
37
FAULT_STATE, SET_FSTATE, CLR_FSTATE: these only
apply to output function blocks. (The Model TA2 has no
output function blocks).
MAX_NOTIFY: the maximum number of alert reports that
the transmitter can send without getting a confirmation.
The user can set the number low, to control alert flooding,
by adjusting the LIM_NOTIFY parameter value.
LIM_NOTIFY: the maximum numbers of unconfirmed
alert notify messages allowed. No alerts are reported if set
to zero.
CONFIRM_TIME: the time that the transmitter will wait
for confirmation of receipt of a report before trying again.
Retry will not occur if CONFIRM_TIME = 0.
WRITE_LOCK: When set to LOCKED, will prevent any
external change to the static or non-volatile data base in the
Function Block Application of the transmitter. Block connections and calculation results will proceed normally, but
the configuration will be locked.
UPDATE_EVT (Update Event): is an alert generated by a
write to the static data in the block.
BLOCK_ALM (Block Alarm): is used for configuration,
hardware, connection, or system problems in the block. The
cause of any specific alert is entered in the subcode field.
The first alert to become active will set the Active status in
the Status attribute. As soon as the Unreported status is
cleared by the alert reporting task, another block alert may
be reported without clearing the Active status, if the subcode has changed.
ALARM_SUM (Alarm Summary): contains the current
alert status, the unacknowledged states, the unreported
states, and the disabled states of the alarms associated with
the block.
ACK_OPTION (Acknowledge Option): selects whether
alarms associated with the block will be automatically
acknowledged.
WRITE_PRI (Write Priority): the priority of the alarm
generated by clearing the write lock.
WRITE ALM (Write Alarm): the alert generated if the
write lock parameter is cleared.
ITK_VER (ITK Version): contains the version of the
Interoperability Test Kit (ITK) used by the Fieldbus
Foundation during their interoperability testing.
38
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
4.2.1 Additional Resource Block Parameters
Field Diagnostic Parameters
FD_VER: Major version of the Field Diagnostic specification to which this device conforms.
FD_FAIL_ACTIVE: For error conditions that have been
selected for the FAIL alarm category, this parameter reflects
those that have been detected as active.
FD_OFFSPEC_ACTIVE: For error conditions that have
been selected for the OFFSPEC alarm category, this parameter reflects those that have been detected as active.
FD_MAINT_ACTIVE: For error conditions that have been
selected for the MAINT alarm category, this parameter
reflects those that have been detected as active.
FD_CHECK_ACTIVE: For error conditions that have
been selected for the CHECK alarm category, this parameter reflects those that have been detected as active.
FD_FAIL_MAP: maps conditions to be detected as active
for the FAIL alarm category.
FD_OFFSPEC_MAP: maps conditions to be detected as
active for the OFFSPEC alarm category.
FD_MAINT_MAP: maps conditions to be detected as
active for the MAINT alarm category.
FD_CHECK_MAP: maps conditions to be detected as
active for the CHECK alarm category.
FD_FAIL_MASK: used to suppress an alarm from being
broadcast for single or multiple conditions that are active in
the FAIL alarm category.
FD_OFFSPEC_MASK: used to suppress an alarm from
being broadcast for single or multiple conditions that are
active in the OFFSPEC alarm category.
FD_MAINT_MASK: used to suppress an alarm from being
broadcast for single or multiple conditions that are active in
the MAINT alarm category.
FD_CHECK_MASK: used to suppress an alarm from
being broadcast for single or multiple conditions that are
active in the CHECK alarm category.
FD_FAIL_ALM: used to broadcast a change in the associated active conditions, which are not masked, for the FAIL
alarm category.
FD_OFFSPEC_ALM: used to broadcast a change in the
associated active conditions, which are not masked, for the
OFFSPEC alarm category.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
39
FD_MAINT_ALM: used to broadcast a change in the associated active conditions, which are not masked, for the
MAINT alarm category.
FD_CHECK_ALM: used to broadcast a change in the
associated active conditions, which are not masked, for the
CHECK alarm category.
FD_FAIL_PRI: specifies the priority of the FAIL alarm
category.
FD_OFFSPEC_PRI: specifies the priority of the OFFSPEC alarm category.
FD_MAINT_PRI: specifies the priority of the MAINT
alarm category.
FD_CHECK_PRI: specifies the priority of the CHECK
alarm category.
FD_SIMULATE: Diagnostic conditions can be manually
supplied when simulation is enabled.
FD_RECOMMEN_ACT: Describes what actions can be
taken to address an active diagnostic condition.
4.2.2 Manufacturer-Specific Parameters
SOFT_SIMULATION_DISABLE: if set to yes, enabling
the simulation is disallowed regardless of the presence of the
simulation jumper, and the “simulation” indicator will be
cleared in the Block Error parameter. If set to no, simulation
can only be enabled if the simulation jumper is present which
also sets the “simulation” indicator in the Block Error parameter.
See section 5.1 for further information on the simulation
feature.
FIRMWARE_VERSION: read-only parameter that corresponds to “Firmware Version” in the Transducer Block.
SERIAL_NUMBER: read-only parameter that corresponds
to “MAGNETROL Serial Number” in the Transducer Block.
RB_LOCAL_TAG: read-only parameter that corresponds
to “Local Tag” in the Transducer Block.
40
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
4.3
Transducer Block
The TRANSDUCER Block is a custom block containing
parameters that support the Model TA2 Thermal Mass Flow
Meter. It contains the TA2 transmitter configuration, diagnostics,
and calibration data. Output from the Transducer Block is
process variables and status information.
The TRANSDUCER Block parameters are grouped in a
useful configuration. There are both read-only parameters
and read-write parameters within the TRANSDUCER Block.
• The read-only parameters report the block status and
operation modes.
• The read-write parameters affect the function block basic
operation, transmitter operation, and calibration.
The Transducer Block will automatically be changed to
“Out of Service” when the local interface (keypad) is used
to change a parameter online. The Transducer Block must
be placed back in service from the Host system.
4.3.1 Transducer Block Parameters
The first six parameters in the TRANSDUCER Block are the
universal parameters discussed in section 4.1.1. After the
universal parameters, six additional parameters are required
for Transducer Blocks. The most notable of these parameters are UPDATE_EVT and BLOCK_ALM. It should be
noted that these six additional parameters must exist but do
not have to be implemented.
An important device-specific parameter found later in the
TRANSDUCER Block list is DEVICE_STATUS, which
displays the status of the device. If more than one message
exists, then the messages are displayed in priority order.
If DEVICE_STATUS indicates a problem, refer to
Section 5.2, Troubleshooting.
For a complete list of Transducer Block Parameters, refer
to table in the Appendix A - Transducer Block Parameters.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
41
4.4
Analog Input Block
The ANALOG INPUT (AI) Block takes the THERMATEL
Model TA2 input data, selected by channel number, and
makes it available to other function blocks at its output:
Channel Process Value
1
Flow
2
Mass
3
Process Temperature
4
R. Totalizer
5
NR. Totalizer
4.4.1 AI Block Parameters
PV: The primary measurement value for use in executing
the function.
OUT: The primary value calculated as a result of executing
the function block.
SIMULATE: Allows the transducer analog input or output
to the block to be manually supplied when simulate is
enabled. When simulate is disabled, the simulate value and
status track the actual value and status
XD_SCALE: The high and low scale values, engineering
units code, and number of digits to the right of the decimal
point used with the value obtained from the transducer for
a specified channel.
OUT_SCALE: The high and low scale values, engineering
units code, and number of digits to the right of the decimal
point to be used in displaying the OUT parameter.
GRANT_DENY: Options for controlling access of host
computers and local control panels to operating, tuning,
and alarm parameters of the block.
IO_OPTS: Option which the user may select to alter input
and output block processing.
STATUS_OPTS: Options which the user may select in the
block processing of status.
42
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
CHANNEL: The number of the logical hardware channel
that is connected to this I/O block. This information
defines the transducer to be used going to or from the
physical world.
L_TYPE: Determines if the values passed by the Transducer
Block to the AI block may be used directly (Direct) or if the
value is in different units and must be converted linearly
(Indirect), or with square root (Ind Sqr Root), using the
input range defined for the transducer and the associated
output range.
LOW_CUT: Limit used in square root processing.
PV_FTIME: Time constant of a single exponential filter for
the PV, in seconds.
FIELD_VAL: Raw value of the field device in % of PV
range, with a status reflecting the Transducer condition,
before signal characterization (L_TYPE) or filtering
(PV_FTIME).
UPDATE_EVT: This alert is generated by any change to
the static data.
BLOCK_ALM: The block alarm is used for all configuration,
hardware, connection failure or system problems in the block.
ALARM_SUM: The current alert status, unacknowledged
states, unreported states, and disabled states of the alarms
associated with the function block.
ACK_OPTION: Selection of whether alarms associated
with the function block will be automatically acknowledged.
ALARM_HYS: Amount the PV must return within the
alarm limits before the alarm condition clears. Alarm hysteresis expressed as a percent of the span of the PV.
HI_HI_PRI: Priority of the high high alarm.
HI_HI_LIM: The setting for high high alarm in
engineering units.
HI_PRI: Priority of the high alarm.
HI_LIM: The setting for high alarm in engineering units
LO_PRI: Priority of the low alarm.
LO_LIM: The setting for low alarm in engineering units.
LO_LO_PRI: Priority of the low low alarm.
LO_LO_LIM: The setting for low low alarm in engineering
units.
HI_HI_ALM: The status for high high alarm and its
associated time stamp.
HI_ALM: Status for high alarm and associated time stamp.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
43
LO_ALM: Status for low alarm and associated time stamp.
LO_LO_ALM: The status for low low alarm and its
associated time stamp.
The TRANSDUCER and AI Block’s MODE_BLK parameter must be set to AUTO to pass the PV Value through the
AI to the network.
Transducer scaling, called XD_SCALE, is applied to the
PV from the CHANNEL to produce the FIELD_VAL in
percent. Selection of valid XD_SCALE engineering units is
limited to predefined units of measurement which is dependent on what channel is selected in the AI Block. Options
include SCFM, SCFH, MMSCFD, Nm3/h, Nl/h, lb/h,
lb/min, kg/h, kg/min, °F, °C, SCF, kg, lb, Nm3, and Nl.
1.
2.
3.
4.
The AI blocks can have a BLOCK_ERR when:
Channel is not set correctly.
XD_SCALE does not have suitable engineering units or has
range incompatibility.
SIMULATE parameter is active
AI Block MODE is O/S (out of service).
NOTE: This can be caused by the Resource Block being OOS or the AI
Block not scheduled for execution.
5. L-TYPE not set or set to Direct with improper
OUT_SCALE.
The AI Block uses the STATUS_OPTS setting and the
TRANSDUCER PV LIMIT value to modify the AI PV
and OUT QUALITY.
Damping Filter is a feature of the AI Block. The PV_FTIME
parameter is a time constant of a single exponential filter
for the PV, in seconds. This parameter can be used to
dampen out fluctuation.
The AI Block has multiple ALARM functions that monitor
the OUT parameter for out of bound conditions.
4.5
PID Block
The PID Function Block contains the logic necessary to perform Proportional/Integral/Derivative (PID) control. The block
provides filtering, set point limits and rate limits, feedforward
support, output limits, error alarms, and mode shedding.
Although most other function blocks perform functions specific
to the associated device, the PID Block may reside in any device
on the network. This includes a valve, a transmitter, or the host
itself.
The Enhanced Model TA2 PID Block implementation follows
the specifications documented by the Fieldbus Foundation.
44
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
4.5.1 PId Block Parameters
ACK_OPTION: Used to set auto acknowledgement of
alarms.
ALARM_HYS: The amount the alarm value must return to
before the associated active alarm condition clears.
ALARM_SUM: The summary alarm is used for all process
alarms in the block.
ALERT_KEY: The identification number of the plant unit.
BAL_TIME: The specified time for the internal working
value of bias to return to the operator set bias.
BKCAL_HYS: The amount the output must change away
from its output limit before the limit status is turned off,
expressed as a percent of the span of the output.
BKCAL_IN: The analog input value and status for another
blocks BKCAL_OUT output.
BKCAL_OUT: The value and status required by the
BKCAL_IN input for another block.
BLOCK_ALM: Used for all configuration, hardware, connection failure, or system problems in the block.
BLOCK_ERR: Reflects the error status associated with the
hardware or software components associated with a block.
BYPASS: Used to override the calculation of the block.
CAS_IN: The remote setpoint value from another block.
CONTROL_OPTS: Allows one to specify control strategy
options.
DV_HI_ALM: The DV HI alarm data.
DV_HI_LIM: The setting for the alarm limit used to
detect the deviation high alarm condition.
DV_HI_PRI: The priority of the deviation high alarm.
DV_LO_ALM: The DV LO alarm data.
DV_LO_LIM: The setting for the alarm limit used to
detect the deviation low alarm condition.
DV_LO_PRI: The priority of the deviation low alarm.
FF_GAIN: The feedforward gain value.
FF_SCALE: The high and low scale values associated with
FF_VAL.
FF_VAL: The feedforward control input value and status.
GAIN: The proportional gain value. This value cannot
equal zero.
GRANT_DENY: Options for controlling access of host
computers to alarm parameters of the block.
HI_ALM: The HI alarm data.
HI_HI_ALM: The HI HI alarm data.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
45
4.5.1 PId Block Parameters (cont.)
HI_HI_LIM: The setting for the alarm limit used to detect
the HI HI alarm condition.
HI_HI_PRI: The priority of the HI HI Alarm.
HI_LIM: The setting for the alarm limit used to detect the
HI alarm condition.
HI_PRI: The priority of the HI alarm.
IN: The connection for the PV input from another block.
LO_ALM: The LO alarm data.
LO_LIM: The setting for the alarm limit used t detect the
LO alarm condition.
LO_LO_ALM: The LO LO alarm data.
LO_LO_LIM: The setting for the alarm limit used to
detect the LO LO alarm condition.
LO_LO_PRI: The priority of the LO LO alarm.
LO_PRI: The priority of the LO alarm.
MODE_BLK: The actual, target, permitted, and normal
modes of the block.
OUT: The output value of the PID block.
OUT_HI_LIM: The maximum output value allowed.
OUT_LO_LIM: The minimum output value allowed.
OUT_SCALE: The high and low scale values associated
with OUT.
PV: The process variable use in block execution.
PV_FTIME: The time constant of the first order PV filter.
PV_SCALE: The high and low scale values associated with PV.
RATE: The derivative action time constant.
RCAS_IN: Target setpoint and status that is provided by a
supervisory host.
RCAS_OUT: Block setpoint and status that is provided to a
supervisory host.
RESET: The integral action time constant.
ROUT_IN: Block output that is provided by a supervisory
host.
ROUT_OUT: Block output that is provided to a supervisory host.
SHED_OPT: Defines action to be taken on remote control
device timeout.
SP: The target block setpoint value.
SP_HI_LIM: The highest SP value allowed.
SP_LO_LIM: The lowest SP value allowed.
SP_RATE_DN: Ramp rate for downward SP changes.
SP_RATE_UP: Ramp rate for upward SP changes.
46
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
4.5.1 PId Block Parameters (cont.)
STATUS_OPTS: Allows one to select options for status
handling and processing.
STRATEGY: Can be used to identify grouping of blocks.
ST_REV: The revision level of the static data associated
with the function block.
TAG_DESC: The user description of the intended application of the block.
TRK_IN_D: Discrete input that initiates external tracking.
TRK_SCALE: The high and low scale values associated
with TRK_VAL.
TRK_VAL: The value applied to OUT in LO mode.
UPDATE_EVT: This alert is generated by any changes to
the static data.
4.6
Integrator Block
The Integrator Function Block integrates an analog value as
a function of the time. The block may be used as a totalizer
that counts up until reset, or as a batch totalizer that has a
setpoint. When used as a batch totalizer, the integrated
value is compared to pre-trip and trip settings to generate
discrete signals when these settings are reached. The
Integrator Block has two inputs, and can only get an input
value from another function block, typically an Analog
Input Block. It cannot get an input value directly from the
Transducer Block.
The Integrator Block and internal totalizer are independent
and may have different values. The difference can occur due
to different sample times or different reset times.
A simple configuration for the Fieldbus Model TA2 might
be as follows:
• AI Block is configured with channel set to Flow.
XD_SCALE, OUT_SCALE, and L_TYPE parameters
are set appropriately so that the AI Out value is flow
in SCFM.
• IT Block is configured as follows:
• Set Units Index in OUTPUT_RANGE to SCF.
• Select “minutes” for TIME_UNIT1 which corresponds to the rate time unit of the AI Out value.
• Select “Demand” for INTEG_TYPE (Count up
and is reset on demand; totalizer set point and
trip outputs are not used).
• Select “Flow forward” for INTEG_OPT.
• GOOD_LIM set to 90%.
• UNCERT_LIM set to 75%.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
47
• Using a Configuration Tool, the OUT value from the
AI Block is connected to IN_1 of the Integrator Block,
and both function blocks are then scheduled for
execution.
• If successful, the function blocks can go into service if
the Resource Block is in service.
Note that the Totalized value in the Integrator Block is
saved in non-volatile memory every 60 seconds. In the
event that the power is lost, the maximum totalized value
lost would correspond to one minute of flow. Also, the IT
Out value will be available for display on the local user
interface similar to the AI Out Values.
4.6.1 Integrator Block Parameters
BLOCK_ALM: Used for all configuration, hardware,
connection failure, or system problems in the block.
CLOCK_PER: Establishes the period for periodic reset in
seconds.
GOOD_LIM: Sets the good limit for PCT_INCL; i.e. if
PCT_INCL ≥ GOOD_LIM, the status of OUT is set to good.
GRANT_DENY: Options for controlling access of host
computer and local control panels to operating, tuning,
and alarm parameters of the block.
IN_1: Input 1 value to the block.
IN_2: Input 2 value to the block.
INTEG_OPTS: Used to configure the type of input (rate
or accum.) used in each input, the flow direction to be considered in the totalization, the status to be considered in
TOTAL, and if the totalization residual value beyond the
trip value shall be carried over to the next batch for
INTEG_TYPE = UP_AUTO or DN_AUTO.
INTEG_TYPE: Defines the type of counting (up or down)
and the type of resetting (demand or periodic).
N_RESET: Counts the number of resets.
OP_CMD_INT: Operator Command to reset the totalizer.
OUT: The output (TOTAL) value of the Integrator Block.
OUT_PTRIP: Second discrete output.
OUT_RANGE: The display scaling for the corresponding
output. It has no effect on the block.
OUT_TRIP: First discrete output.
OUTAGE_LIM: The maximum tolerated duration for
power failure.
48
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
PCT_INCL: Indicates the percentage of inputs with “good”
status compared to the ones with “bad” status, or “bad” and
“uncertain” status.
PRE_TRIP: Sets the value that should set OUT_PTRIP;
i.e. OUT_PTRIP is set when the integration reaches
(TOTAL_SP - PRE-TRIP) when counting up, or the
integration reaches PRE-TRIP when counting down.
PULSE_VAL1: Determines the mass, volume, or energy per
pulse on Input 1 (used when accumulating the counts from
a Pulse Input Block).
PULSE_VAL2: Determines the mass, volume, or energy per
pulse on Input 2 (used when accumulating the counts from
a Pulse Input Block).
RESET_CONFIRM: Momentary discrete value which can
be written by a host to enable further resets, if the option
Confirm Reset is selected in INTEG_OPTS.
RESET_IN: Input to function block to reset the totalizers.
REV_FLOW1: Input to function block indicates reverse
flow on Input 1 when true.
REV_FLOW2: Input to function block indicates reverse
flow on Input 2 when true.
RTOTAL: Indicates the totalization of inputs with “bad”
status, or “bad” and “uncertain” status, according to
INTEG_OPTS.
SRTOTAL: A copy of RTOTAL just before a reset.
SSP: A copy of TOTAL_SP.
STATUS_OPTS: Options which the user may select in
block processing of status.
STOTAL: A copy of OUT just before a reset.
TIME_UNIT1: The rate time unit of Input 1 for conversion
to rate per second.
TIME_UNIT2: The rate time unit of Input 2 for conversion
to rate per second.
TOTAL_SP: Set point for batch totalization.
UNCERT_LIM: Sets the uncertain limit for PCT_INCL;
i.e. if PCT_INCL ≥ UNCERT_LIM, the status of OUT is
set to uncertain.
UNIT_CONV: Factor to convert the engineering units of
Input 2 into the engineering units of input 1 when integrating
two inputs.
UPDATE_EVT: This alert is generated by any changes to
the static data.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
49
4.7
Local Display of Function Block Values
The LCD and keypad on the Model TA2 Foundation
Fieldbus transmitter provides access to read or change the
Transducer Block parameters. In addition the TA2 permits
the display of the devices Analog Input [AI] Block and the
Integrator [IT] Block output values on the local LCD under
Measured Values. These values can be displayed on the
rotating display—see section 3.5.5.
A list of the Analog Input Block Process values is shown in
section 4.4.
Typical display of the Analog Output values is shown in
figure 11.
AI Block #
AI Block Channel
Process Value
* AI# Out-mmmm *
#########uuuuu
Out Value
Out Scale units
abbreviation
Figure 11
The screens will be formatted as shown, where # in the title
is the number of the AI Block (1, 2, 3, 4, or 5) and mmmm
is one of: “Flow”, “Mass”, “Temp”, “NRTot”, “RTot”, “----”
depending on the value of the associated AI Block’s Channel
parameter.
• For example, “AI1 Out-Flow” will probably be the most
commonly used AI Out screen
• “AI2 Out----” would be displayed when the channel value
is 0 [uninitialized] for AI Block 2.
Additional representative examples are shown in figure 12.
* AI1 Out-Flow *
10.0 %
* AI1 Out-Mass *
20.0 lb/min
* AI2 Out-Temp *
50.00 °C
* AI5 Out - - - - *
* AI4 Out-NRTot *
10000 lb
* IT Out *
10000 SCF
Figure 12
There may be differences in the AI value in the Analog
Input Block and the IT value in the Integrator Block compared to the values shown on the TA2 display. Primary reason for this difference is the time when the data was
acquired.
In order to provide indication that the Function Block is
not executing and/or to avoid displaying a possibly stale
value, the second row will be blank if the Block Error
parameter in a configured Function Block is indicating Out
Of Service, a block configuration error, or input failure. The
second row on an AI Out screen or IT Out will also be
blank if the unit has not been assigned a permanent address,
or if the associated Function Block has not been configured
and scheduled for execution.
The Out Scale units abbreviations will be displayed only
when the Output Scale Units Abbreviation is “%” or one of
the flow, mass, temperature, or totalizer units supported for
local display.
50
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
5.0
Diagnostic Parameters
The Model TA2 measurement engine runs through a series
of self-tests and will detect and report faulty operation.
The TRANSDUCER BLOCK displays these faults in the
DEVICE_STATUS parameter. Refer to Section 5.2.1.4 for
more information on specific faults and warnings.
BLOCK_ERROR is not used except for indicating Out of
Service (OOS).
When the Model TA2 is initially powered on, the measurement engine does not have enough valid measurement cycles
to make a decision about the output value. For the first few
seconds after power is applied, the FLOW_STATUS/QUALITY
is “Uncertain,” the SUB_STATUS is “Initial value,” and the
LIMIT attribute is “Constant.”
When the Model TA2 is operating properly, the
FLOW_STATUS/QUALITY is shown as “GOOD,” and
the SUB_STATUS is “Non-Specific.”
While changing the transmitter operational parameters using
the local display or through the system configuration tool (with
the MODE_BLK in OOS), the output might be inaccurate
because of the changing parameters. When the device is set to
OOS, the TRANSDUCER BLOCK will still output flow but
the QUALITY will be shown as “Bad” and the SUB_STATUS
is “Out of Service.”
When the Enhanced Model TA2 measurement cycle fails to
find a valid output value, the transmitter maintains the last
good value as the output and flags the failure. The LIMIT
attribute is the same as the last good measurement.
If the Model TA2 fails to find a measurable signal, the
TRANSDUCER BLOCK maintains the last good value as
the output and flags the failure. The QUALITY is “Bad,”
the SUB_STATUS is “Sensor failure” for no flow (or
“Device failure.”
Refer to Section 5.2.1.4 for additional information.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
51
5.1
Simulation Feature
The THERMATEL Model TA2 with FOUNDATION fieldbus™
supports the Simulate feature in the Analog Input Block.
The Simulate feature is typically used to exercise the operation
of an AI block by simulating a TRANSDUCER block input.
U1
U21
U20
This feature cannot be activated without the placement of a
hardware jumper. Normally, the THERMATEL Model TA2
will ship with the hardware jumper placed so that the
Simulation Feature is disabled. See section 5.1.1 for instructions about accessing the Simulation jumper.
J1
U24
Q1
U4
J3
U3
R194
J2
R101
R90
5.1.1 Accessing the Simulation Jumper
To access the simulation jumper:
1. Remove the cover to the electronics display.
2. Remove the display module by removing the two retaining
screws.
3. To enable simulation, place jumper at J3 across the two
pins.To disable simulation, place jumper at J3 on one pin
only.
P3
J3 Simulation Jumper
Figure 13
NOTE: Do not remove the jumper at position J2. The J2 jumper is used
in a diagnostic test; see section 5.3.1.
4. Reassemble the display module and cover.
NOTE: A BLOCK_ERR of “Simulation Active” in the Resource Block
does not mean simulation is active—it merely indicates that
the simulation (hardware) jumper is placed to enable simulation. See section 4.2.2 for instructions to mask this block error.
5.2
Troubleshooting
The TA2 Thermal Mass Flow Meter is designed for ease of
use and trouble-free operation. The TA2 is shipped pre-calibrated and pre-configured based on information
provided at time of order.
The following lists possible problems and solutions to
investigate.
WARNING! Explosion hazard. Do not remove the TA2 housing
cover unless power has been switched off or the area
is known to be non-hazardous.
52
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
5.2
Troubleshooting (cont.)
Symptom
Problem
Solution
No Output signal
No Display
No input power
Verify that LED D6 on the input wiring board
is on. If not, check wiring connections.
Check F1 test and F2 test to check fuses
protecting input wiring. See Figure 8.
Totalizer not operating
Totalizer is Disabled
Ensure that the totalizer operation
is enabled. See section 3.5.8.
Flow is measured under a
no flow condition
Increased heat transfer.
This can occur under
no flow with increased
pressure.
Increase the low flow cutoff to a value
greater than the displayed flow rate.
The TA2 will ignore readings lower than
this value. Optionally, increase the zero
flow signal to match the value indicated
under Signal Value. See section 3.5.14.
Instrument configuration
does not match actual
application
Check values entered for Flow Area under
Basic Configuration. Check if Install Factors
are entered under Advanced Configuration.
Check STP conditions under Advanced
Configuration.
Buildup on sensor
Depending on type and size of buildup,
flow readings may either increase or
decrease. Clean sensor.
Flow Rate too high
Flow Profile
Considerations
The TA2 assumes a specific fully developed flow profile. User can correct for variations in flow profile using the Install
Factors found under Advanced
Configuration section 3.5.9.
Flow Rate too high,
output spiking
Moisture in the Gas
Condensed moisture will cool the sensor
more than gas flow. This will temporarily
indicate a higher than expected flow rate.
Flow Rate too high or too low
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
53
5.2.1 Error Messages
The TA2 Mass Flow Meter utilizes a 3-level hierarchy for
reporting diagnostics information: FAULTS, WARNINGS,
and INFORMATION. Faults and Warnings can be reviewed
on the rotating screen in the Home menu. These screens
capture only current conditions. Historic diagnostic information can be viewed in the HISTORY screen of the
Diagnostics Menu.
FAULT: The highest level in the hierarchy of diagnostics.
A Fault indicates a defect or failure in the circuitry or software, or a calibration condition that makes reliable measurement impossible. Further error information can be
obtained by reviewing the Diagnostic Menu screens.
WARNING: This is the second level in the hierarchy of
diagnostics. A Warning indicates conditions that are not
fatal but may affect the measurement. A message will
appear on the Home (rotating) screen when a Warning is
detected but will not affect the output current. Further
error information can be obtained by reviewing the
Diagnostic Menu screens.
INFORMATION: This is the lowest level in the hierarchy
of diagnostics. Information messages are for conditions
that provide operational factors that are not critical to the
measurement. Further error information can be obtained
by reviewing the Diagnostics Menu.
54
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
5.2.1.1 Fault Messages
diagnostic
Fault description/Corrective Action
LCd Message
Non-Volatile
Memory corruption
Partial corruption of the Non-Volatile memory stored in
the EEPROM. Data may revert to Default conditions.
Re-verify that all calibration and configuration factors in
the TA2 match the calibration certificate.
Default Params
No signal from Probe
There is no signal from the sensor. Check the wiring
between the probe and the electronics.
No Probe Signals
Temperature Sensor
Failure
A short has occured in the RTD measuring the process
temperature or in the interconnecting wiring (if remote
electronics). Check wiring to the probe.
TempSnsr Shorted
Temperature Sensor
Failure
There is an open circuit in the RTD measuring the
process temperature or in the interconnecting wiring
(if remote electronics). Check wiring to the probe.
Temp Sensor Open
Flow Sensor Failure
A short has occured in the RTD measuring the
heated sensor or in the interconnecting wiring
(if remote electronics). Check wiring to the probe.
FlowSnsr Shorted
Flow Sensor Failure
There is an open circuit in the RTDs measuring the
heated sensor or in the interconnecting wiring
(if remote electronics). Check wiring to the probe.
Flow Sensor Open
RTDs Reversed
The wiring connecting the RTDs is reversed.
Check probe wiring or interconnecting cable
(if remote electronics)
RTDs Reversed
Heater Shorted
The heater has developed a short either in the probe or
in the interconnecting cable (if remote electronics).
Check probe wiring.
Heater Shorted
Heater Open
There is an open circuit in the wiring going to the heater.
Check wiring. Also, check if the two-pin jumper is missing.
See section 5.3.1.
Heater Open
Zero Flow Signal
is too high
Zero Flow Signal (power) is greater than second data
point in the Calibration Table. Check value entered
under Factory Config/Cal Parameters/Zero Flow Signal.
ZFS Too High
Too Few
Calibration Points
The calibration table does not contain sufficient number
of data points for the flow range. Minimum of ten points
is required.
Too Few Cal Pts
Air Equivalency
Coefficients incorrect
The Air Equivalency factors used result in a nonmonotonically increasing curve over the operating range.
Check factors.
Air Equiv Coeffs
Install Factors
incorrect
Install factors entered under Advanced Configuration
result in a non-monotonically increasing curve.
Check factors.
User Coeffs
Module Failure
No readings received from the ADCs, or the values out
of range. Indicates failure of Analog to Digital converters.
Requires replacement of processor board or return of
unit to factory.
Module Failure
Velocity is greater than
the Upper Sensor Limit
The velocity is greater than established values.
Contact MAGNETROL.
Vel > UprSnsrLmt
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
55
5.2.1.2 Warning Messages
diagnostic
Warning description
LCd Message
Initializing
Initialization in progress. The TA2 will begin making flow
readings at completion of cycle.
Initializing
TA2 is running
diagnostics test
The operator has put the TA2 into one of several diagnostics
tests.
In Test Mode
Velocity too high
The Flow rate exceeds the calibration range of the instrument.
Instrument will continue to operate. Accuracy is uncertain;
flow measurements will be repeatable.
Vel > Upr Cal Pt
RTD drift
The RTD drive circuit current has drifted since last calibration.
The drift is outside expected range. The TA2 has compensated
for the drift, continued drift may affect accuracy. Repeatability
will remain.
RTD Drive Ckt
Totalizer Error
There is an error in the Totalizer operation—the Totalizer and
Elapsed Time indicator are reset to 0.
Dflt Totalizer
Temperature Limit
Exceeded
The temperature measured by the sensor exceeds the rated
temperature. Continued operation will damage sensor.
Process Temp Hi
Install Factor Error
Check and recalculate the install factors. This message may
occur if the units of measurement were changed after install
factors were entered.
Check Inst Factors
Electronic Temperature
Exceeded
The temperature of the microprocessor board is above +176° F
(+80° C) or below –40° F (–40° C)
Elec Temp Hi
Elec Temp Lo
5.2.1.3 Information Message
diagnostic
Information description
LCd Message
System Warning
Non-fatal firmware exception. Advise MAGNETROL with
system code number.
System Code
56
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
5.2.1.4 Device Status Parameter in the Transducer Block
The following table lists the conditions indicated in the Device
Status parameter. It also shows how the conditions affect
PV Quality, Sub-Status and Limit. XD ERROR and
BLOCK ALARM are not affected by these conditions directly.
➀
Type
Mode
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Fault
Warning
Warning
Warning
Warning
Warning
Warning
Warning
Warning
Warning
Warning
device Status
Label
Bit #
Config Changed
6
Default Params
31
No Probe Signals 29
Temp Sensor Shorted 28
Temp Sensor Open
27
Flow Sensor Shorted 26
Flow Sensor Open 25
RTDS Reversed
24
Heater Shorted
23
Heater Open
22
ZFS Too High
21
Too Few Cal Pts 20
Air Equiv Coeffs 19
User Coeffs
18
Module Failure
17
Vel > UprSnsrLmt 16
Initializing
15
In Test Mode
13
Vel > UprCalPt
12
Vel < LowFlowLmt 11
RTD Drive Circuit 10
Default Totalizer
9
Process Temp High
4
Check Install Factors
3
Elec Temp High
2
Elec Temp Low
1
Value
0x00000040
0x80000000
0x20000000
0x10000000
0x08000000
0x04000000
0x02000000
0x01000000
0x00800000
0x00400000
0x00200000
0x00100000
0x00080000
0x00040000
0x00020000
0x00010000
0x00008000
0x00002000
0x00001000
0x00000800
0x00000400
0x00000200
0x00000010
0x00000008
0x00000004
0x00000002
For the Default Totalizer Warning,
PV Status is bad only if the PV is
R Totalizer or NR Totalizer. If the
PV is Flow, Mass, or Temperature,
then PV status is “Good, NonSpecific, Not limited”
Quality
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Bad
Uncertain
Bad
Good
Good
Good
Bad ➀
Good
Bad
Good
Good
Process Variable Status
PV Sub Status
Limit
OOS
Not Limited
Configuration Error
Not Limited
Sensor Failure
Constant Limited
Sensor Failure
Constant Limited
Sensor Failure
Constant Limited
Sensor Failure
Constant Limited
Sensor Failure
Constant Limited
Sensor Failure
Constant Limited
Sensor Failure
Constant Limited
Sensor Failure
Constant Limited
Configuration Error
Not Limited
Configuration Error
Not Limited
Configuration Error
Not Limited
Configuration Error
Not Limited
Device Failure
Constant Limited
Non-Specific
High Limited
Initial Value
Constant Limited
OOS
Not Limited
Non-Specific
Not Limited
Non-Specific
Low Limited
Non-Specific
Not Limited
Configuration Error
Not Limited
Non-Specific
Not Limited
Configuration Error
Not Limited
Non-Specific
Not Limited
Non-Specific
Not Limited
If everything is running normally and there are no Faults or
Warnings, then status is not shown on the rotating menu
on the local display and 0x00000000 will be displayed for
the Device Status parameter in the Transducer Block from
the Fieldbus interface. If a static parameter is changed from
the local display, the Transducer Block is taken Out of
Service if it is not already, and the “Config Changed” mode
condition is set in Device Status. This will indicate to the
operator that the configuration has been changed from the
local display. No indication is given on the Fieldbus network if someone is only viewing parameters on the local
display.
For the Default Totalizer Warning, PV Status is bad only if the
PV is R Totalizer or NR Totalizer. If the PV is Flow, Mass, or
Temperature, PV Status is “Good, Non-specific, Not Limited”.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
57
5.3
Diagnostics Test
The TA2 has several diagnostics tests which may be routinely performed. When conducting these tests, the
Transducer Block is taken Out of Service (OOS).
5.3.1 Heater Setting
U1
U21
U20
J1
U24
Q1
U4
J3
U3
R194
J2
P3
R101
R90
The amount of current flowing to the heater is displayed
under Diagnostics/Heater Setting. This value can be verified by connecting a multi-meter across the Heater Bypass
terminals (J2) shown in figure 13. This board can be
accessed by opening the cover and removing the display
module. See Figure 14.
The measured value should match the value shown on the
display. Any difference between the two values indicates
that the heater calibration is incorrect. If the heater circuit
is open, a nominal current value will be displayed, but the
measured current will be zero.
5.3.2 Zero Power Test
J2 Heater Test
Figure 14
This test checks that the resistances of the RTDs have not
changed. The heater is turned off and the temperature difference between the two sensors is compared. The test
should be performed in a water bath (preferred) or under
flowing conditions. Conducting this test in still air will
cause the test to time out and provide inconclusive results.
The temperature difference between the two sensors is
displayed. Typical values will match within 0.15° C.
Temperature difference may be as high as 0.5° C depending upon test conditions. If greater than this value, contact
the factory as drift in the RTDs may have occurred.
5.3.3 Calibration Verification Procedure
The TA2 measures heat transfer. These procedures are
designed to permit the user to verify the calibration by
checking the heat transfer characteristics of the sensor. If
the heat transfer characteristics are approximately the same
when the test is conducted compared with when the same
data was collected at the factory during the initial calibration,
the unit remains in calibration.
58
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
The procedure is performed under two different sets of
conditions. Both tests should be conducted at “room
temperature,” approximately +70° to +85° F (+21° to +30° C).
Low Flow Validate—Simulates a low flow condition.
i. Cover sensor tips to isolate from air currents. During
the test, the heater power is set and the Delta T
(temperature difference) between the two RTDs is
measured.
ii. After completion of the test, the value of the temperature difference measured during the test is compared
against the previously stored value. (This value can
also be compared with the initial calibration found
on the original calibration certificate.)
iii. The value from the test should compare with the
stored (or original calibration value) within 1.5° C.
This variation in part due to potential variations of
the ambient temperature during the test and differences in test methods.
Figure 15
High Flow Validate—Simulates a high flow condition.
i. Support the TA2 vertically in a water bath. See
Figure 15. During the test, the heater power is set
and the Delta T (temperature difference) between
the two RTDs is measured.
ii. After completion of the test, the value of the temperature difference measured during the test is compared
against the stored value. (This value can also be compared with the initial calibration found on the original
calibration certificate.)
iii. The value from the test should compare with the
stored (or original calibration value) within 1.5° C
This variation in part due to potential variations of
the ambient temperature during the test and differences in test methods.
If the temperature difference measured during the test is
greater than the recommended temperature difference
indicated above in item “iii”, then the overall accuracy of the
TA2 may be affected. Contact MAGNETROL Technical
support.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
59
6.0
Maintenance
6.1
Circuit Board Replacement
1.
2.
Front
Compartment
Rear
Compartmen
3.
4.
Figure 16
The input wiring board and display module can be
replaced without any effect on the performance and operation of the TA2. The processor board contains the calibration information and is matched with the probe. If this
circuit board is replaced, re-entry of all the original calibration data and configuration information is required. This
information is contained on the calibration certificate
which can be supplied by MAGNETROL.
Make sure the power source is turned off.
The input wiring board is contained in the rear compartment where the input voltage wiring comes into. The display module, power fieldbus board and processor board are
contained in the front compartment.
Remove cover—refer to Figure 16.
If removing boards in the front compartment:
a. Remove and unplug the display module if provided.
b. Remove the two hex head fasteners using a 1⁄4" socket.
This will remove the electronics module containing
the processor board and the power fieldbus board.
c. Unplug the electrical connection at J1 of the
power fieldbus board.
d. Probe wiring connections are made to TB1 on the
same side of the power fieldbus circuit board.
e. Connect the probe wires as indicated:
Integral Electronics
Wire Color
Orange
Brown
Black
Blue
White
Connection on TB1
8
7
3
2
1
Remote Electronics —see
5.
6.
7.
8.
60
Figure 9 on Page 13.
f. Reattach the electrical connection to J1.
g. Reassemble the circuit boards in the enclosure.
Make sure that the probe wiring does not get
pinched between the standoffs on the circuit board
and the attachment lugs in the housing.
h. Reinstall the display module if provided.
If replacing the input wiring board, loosen screws, and remove
the electrical connection to J1 on the rear of the circuit board.
i. Attach electrical connections to J1 on new circuit
board and reassemble.
Re-install the cover.
Apply power to the instrument.
Proceed to section 6.3
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
6.2
Probe Replacement
The probe and processor board are calibrated together
to form a matched set. If a probe needs to be replaced,
MAGNETROL will provide a new calibration certificate.
The user will be required to re-enter the data from this
certificate into the instrument. A new serial number will
be designated to the replacement probe.
Integral Electronics
1. Make sure the power source is off.
2. Access the power fieldbus circuit board following procedure in section 6.1.4.
3. Disconnect wiring to the probe.
4. Loosen the two set screws at the base of the housing. One
serves as a rotational lock, the other secures the head into place.
5. Unthread the probe.
6. Thread in a new probe.
7. Connect the probe wires to the power fieldbus board as
indicated in section 6.1.4., step “e”
8. Reassemble the electronics following 6.1.4.
9. Align the enclosure with the desired probe position, making sure that the flow arrow indicates the direction of flow.
10. Retighten the two set screws.
11. Reapply power.
12. Proceed to section 6.3.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Remote Electronics
Make sure the power source is off.
Remove cover of remote electronics housing.
Remove bezel.
Disconnect the wires from the probe at terminal TB1.
Loosen the two set screws at the base of the housing. One
serves as a rotational lock, the other secures the head into place.
Unthread the probe.
Thread in a new probe.
Connect the probe wires to Terminal TB1 as shown in
figure 10.
Retighten the two set screws.
Wire Color
White
Blue
Black
Brown
Orange
Terminal Connection on TB1
1
2
3
4
5
10. Re-assemble the bezel and install cover.
11. Reapply power.
12. Proceed to section 6.3.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
61
6.3 Replacement Calibration
6.3.1 RTd Calibration
If either the probe or the processor board is replaced in the
field, calibration of the RTDs in the probe will return the
TA2 to like-new performance.
NOTE: If this procedure is not followed, the accuracy will be affected;
however, very repeatable flow measurements will be obtained.
Locate the sensor vertically in a water bath with an accurate temperature sensor directly adjacent to the probe tips.
It is preferable that the water is stirred during the calibration to ensure the TA2 pins and temperature probe are at
the same temperature. Using the keypad and display, select
“Factory Config\Probe Params\Probe Temp Calib” and
then press the Enter key. The device will dynamically display the To/Fo readings over a period of time. After 3 minutes, and if the readings are stable enough, the display
automatically changes to request entry of a password (126)
followed by the ambient water temperature. After the temperature is entered, the device will display if the calibration
is OK. The device then automatically resets itself for normal operation.
6.3.2 Set Point Adjustment
A new set point must be calculated to complete the reconfiguration.
1. Place the probe in ambient temperature air where there is no
flow across the sensor. This can be accomplished by wrapping the sensor tip with a piece of paper.
2. Go into Diagnostics ’ Signal. Allow time for the signal to
stabilize to within ±1 mW and record the new signal.
3. Calculate a new set point by using the following formula:
New set point = set point x (zero flow signal ÷ new signal)
If replacing the probe, use the set point and zero flow signal
(ZFS) shown on the new calibration certificate that came
with the probe.
If replacing the processor board, use the set point and ZFS
on the original calibration certificate. If the original calibration certificate is not available, contact MAGNETROL
with the serial number of the unit found on the nameplate.
New signal is the value measured under step 2.
NOTE: If the TA2 is calibrated for a gas other than air, there are two
ZFS values on the certificate. One is for air and the other is for
the particular gas. Use the ZFS for air when making the
adjustment in air.
4. Enter this new set point into the TA2 instead of the value on
the calibration certificate under Factory Config ’ Cal
Parameters A ’ Set Point.
62
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
5. Return to the signal screen, similar to step 2, ensuring there is
no flow over the sensor. The signal value should now agree
with the original ZFS within 1%. If desired, steps 2 through 5
can be repeated.
6.4
Flow Recalibration
Calibration of the TA2 requires a flow bench or other method
for determining the flow rate. Using this procedure, the user
can re-calibrate the unit himself or use a local flow calibration
facility rather than returning the unit to the factory for recalibration. With an insertion probe, it is not necessary to calibrate in the same size pipe as the unit is installed in. The TA2
has internal scale-up factors which adjusts the data from the
calibration pipe size to the installation pipe size.
Calibration requires the TA2 sensor to be positioned in a test
section; the test section should have a sufficient upstream and
downstream straight run to ensure the formation of a fully
developed flow profile. Calibration should be performed using
the same gas which the unit is calibrated for. Optionally, an air
equivalency calibration can be performed. In this case, calibrate
in air and contact the factory for air equivalency factors and
equivalent air calibration rate.
Recalibration Procedure:
1. Select the set point; this is the temperature in degrees Celsius
which the TA2 maintains between the two sensors. If the
unit is re-calibrated for the same application, then it is probably not necessary to change the original value. If it becomes
necessary to change the set point due to change in the calibration velocity or the type of gas:
a. Record the set point under Factory Configuration/ Cal
Parameters (A or B)/Set Point.
b. Determine the maximum velocity in SFPM which the
unit will operate (SFPM equals the SCFM divided by
the flow area of the test section in square feet).
c. Install the probe in the test section and flow gas that is
equivalent to the maximum velocity in the calibration
range.
d. Using the display, obtain the signal value in mW from
the Diagnostics menu.
e. Calculate a new set point using the formula:
New set point = old set point * (800/measured signal
(mW)). 800 mW is the desired maximum power rating
for the TA2.
f. Enter new /set point in TA2 under Factory
Configuration/Cal Parameters (A or B) Set Point.
2. Convert the flow rate in the application to the flow rate in
the test section using the formula:
Flow in test section = application flow * (flow area of test section/flow area of application)
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
63
a. Allow a flow of a known amount of gas through the
test section, recording flow rate and TA2 signal
(mW). A minimum of 10 and a maximum of 30 data
points including a zero flow value should be
obtained. One data point should be taken at a flow
rate approximately 20% greater than the expected
operating range. The higher the number of data
points, the better the overall accuracy of the instrument.
b. Convert the flow rate in the test section to mass
velocity in SFPM (Standard Feet Per Minute). This
is equivalent to the flow rate in SCFM divided by
the flow area in square feet. Convert from other units
of measurement as necessary. Use MAGNETROL
STP conditions of 70° F and 1 Atmosphere (14.69
psia).
c. Enter the Power and the corresponding Mass
Velocity into the TA2 using the display and keypad
or using the Fieldbus interface. These values should
be entered in increasing order to ensure a monotonically increasing curve.
Note password of 126 is required for entry of calibration data. (Contact MAGNETROL if issues using
this password.)
d. After completion of entry of the calibration data,
check the display for the number of points accepted
(or table length). If this number is less than the
actual number of data points entered, then there is
an error in the entry of the calibration data. Ensure
that the data is entered so the curve is monotonically increasing. The values of mass velocity and power
should always be increasing over the calibration
range.
e. A Fault message will occur if there are fewer than 10
calibration data points in the calibration table.
3. Enter the flow area of the calibration test section. Units of
measurement are the same as selected under Basic Config
menu. This value is used in calculating the scale-up factor
between the calibration test section and the installation.
7.0
Reference Information
7.1
Description
The THERMATEL Model TA2 Thermal Mass Flow Meter
provides a mass flow measurement of air and other gases.
The TA2 consists of a probe or flow body with electronics
either integrally mounted on the probe or remotely located.
The electronics are rated for use in explosion proof service.
The unit will accept 15 to 30 VDC power or 100 to
260 VAC input power.
64
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
The optional plug-in display module with four-button
keypad permits the user to easily make changes in the
configuration of the TA2 for application-specific conditions.
The display provides an indication of the mass flow,
temperature and totalized flow, plus other selectable
information.
Each instrument is calibrated and configured by
MAGNETROL for the type of gas, pipe size, flow area and
flow rate. Calibration is performed in a NIST traceable
flow bench.
The TA2 provides real-time temperature compensation
which adjusts the flow measurement due to changing gas
properties caused by process temperature changes.
7.2
Theory of Operation
The flow element of the TA2 Thermal Mass Flow Meter
utilizes a heater and two resistance temperature detectors
(RTDs). The heater and the active RTD are contained in
one sensor. The second sensor contains the reference RTD
and a mass balancing element.
The reference RTD measures the temperature of the
process where the flow element is installed. A variable
power is provided to the heater. The active RTD measures
the temperature of the heated sensor in a feedback loop to
the electronics. The electronics vary the power to the
heater to maintain a constant temperature difference
between the active and reference RTDs. As the mass flow
rate increases there is a cooling effect on the heated sensor.
The power to the heated sensor is controlled to maintain a
constant temperature difference between the two sensors.
The amount of power required to maintain this temperature
difference provides a measurement of the mass flow.
There is an inherent non-linear relationship between
heater power and the mass flow rate. The microprocessor
based electronics convert the heater power to provide a
linear measurement of the mass flow rate. The electronics
also provide real time temperature compensation which
automatically adjusts the flow measurement for changes
in process temperature over the entire operating range of
the instrument.
The temperature measured by the reference RTD and the
totalized flow can be viewed on the display, and is also
available from the Fieldbus interface.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
65
7.3
Display Module
The Enhanced model TA2 has a back-lit, plug-in, rotatable
display module. The display module consists of a 2-line ¥
16-character Liquid Crystal Display with four-push-button
keypad for configuring the instrument, or for diagnostics.
The display can be rotated in 90-degree increments to permit viewing from various orientations. To rotate the display,
remove the two screws on the front of the display module,
rotate to the desired position, and reattach.
66
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
7.4
Agency Approvals
AGEnCY
APPROVEd MOdEL
PROTECTIOn METHOd
unITEd
STATES
& CAnAdA
TA2-AXXX-X3X
TA2-AXXX-X4X
with
TXR-XXXX-XXX (probe)
TFT-XXXX-000 (flow body)
Explosion Proof
Dust Ignition Proof
Non-Incendive
Suitable for
AREA CLASSIFICATIOn
Class I, Div 1, Groups B, C, D
T6 Ta = -40° C to +70° C,
T5 Ta = -40° C to +80° C
Class II, III, Div 1, Groups E, F, G
T6 Ta = -40° C to +70° C,
T5 Ta = -40° C to +80° C
Class I, Div 2, Groups A, B, C, D
T4 Ta = -40° C to +80° C
Class II, Div 2, Groups E, F, G
Class III, Div 1
T4 Ta= -40° C to +80° C
Type 4X, IP 66
II 2 G Ex d IIC T6 Gb, Tamb -40° C to +55° C
ATEX
TA2-AXXX-X3X
TA2-AXXX-X4X
with
TXR-XXXX-XXX (probe)
TFT-XXXX-000 (flow body)
Explosion proof
EN60079-0: 2009
EN60079-1: 2007
IEC
TA2-AXXX-X3X
TA2-AXXX-X4X
with
TXR-XXXX-XXX (probe)
TFT-XXXX-000 (flow body)
Explosion Proof
IEC 60079-0: 2007-10
IEC 60079-1: 2007-04
EAC
TA2-AXXX-X3X
TA2-AXXX-X4X
Russian Authorization Standards Consult MAGNETROL for Details
BRAZIL
TA2-AXXX-X3X
TA2-AXXX-X4X
com
TXR-XXXX-XXX (probe)
INMETRO TÜV TFT-XXXX-000 (flow body)
Explosion proof
ABNT NBR IEC 60079-0:2008
ABNT NBR IEC 60079-1:2009
ABNT NBR IEC 60529:2005
Note: Maximum surface temperature is +4° C (+7.2° F) above
process temperature.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
Ex d IIC T6 Gb
when T amb= -40° C to +70° C and
T medium= -40° C to +55° C
Ex d IIc T6 Gb
IP66W
-40° C < Ta < +55° C
TÜV 11.0027 X
These units have been tested to EN 61326 and are
in compliance with the EMC Directive 2004/108/EC.
67
7.5
Replacement Parts
NOTE: Replacement of the processor circuit board or the probe
requires entry of calibration and configuration data from the
Calibration Certificate.
WARNING: EXPLOSION HAZARD
Substitution of components may impair suitability for
Class I, Division 2
EXPLOSION HAZARD
Do not disconnect equipment unless power has been
switched off, or the area is known to be non-hazardous
Item
description
Part number
1
Power Fieldbus Board
Z30-3618-001
2
Processor Board
Z30-3617-001
Electronics Module with Processor Board,
Power Fieldbus Board with mounting hardware
089-7263-001
3
Display Module
Z30-3614-001
4
Input Wiring Module
089-7262-001
5
Enclosure O-ring
012-2201-240
6
Enclosure Base
004-9207-XXX
7
Short Enclosure Cover *
004-9197-007
8
Wiring Enclosure Cover
004-9206-010
9
Enclosure Cover with Window **
036-4411-001
10
Remote Probe Housing Base
004-9212-XXX
11
Remote Probe Housing Cover
004-9193-002
12
Remote Probe Housing O-ring
012-2101-237
13
Remote PC Board
030-3616-001
14
Probe/Flow Body
See Probe/Flow Body
* Short enclosure cover used with units that do not include display
** Enclosure cover with window is used with units that do include display
68
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
5
1
2
4
3
8
9
6
11
13
12
10
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
69
7.6
Specifications
7.6.1 Performance
Flow range maximum
Accuracy flow
Accuracy temperature
Repeatability
Linearity
Turn down
Calibration
Span
Response time
Cable length
10–54,000 SFPM (0.05–275 Nm/s) air reference to standard conditions
Contact MAGNETROL for other gases
±1% of reading +0.5% of calibrated full scale
±2° F (1° C)
±0.5% of reading
Included in flow accuracy
100:1 typical (depending on calibrated flow range)
NIST traceable
Minimum 0 –100 SFPM
1 to 3 second time constant typical
500 feet (150 m); (see section 3.4.3 for cable specifications)
7.6.2 Transmitter
Display
Keypad
Menu Language
Supply voltage
Power consumption
Ambient temperature
Temperature effect
Humidity
Housing Material
Shock /Vibration
Two-line alphanumeric LCD, 16-characters per line
Four push button
English, French, German, Spanish, Russian
100 –264 VAC, 50–60 Hz
15-30 VDC (lower VDC possible - Consult Factory)
DC = 9 W maximum,
AC = 20 VA maximum
-40° to +176° F (-40° to +80° C); display not readable below -22° F (-30° C)
Approximately ±0.04% of reading per ° C
99% Non-condensing
Aluminum A356 (<0.2% copper)
ANSI/ISA-S71.03 table 2, level SA1 (Shock), ANSI/ISA-S71.03 table 1, level VC2 (Vibration)
7.6.3 Probe
Materials
Process connections
Pressure rating
Temperature rating
316/316L stainless steel all welded
Hastelloy® C-276/C-22
Refer to model number, hot tap optional
1500 psig @ +70° F(103 bar @ +20° C), 1375 psig @ +400° F (95 bar @ +200° C)
-50° to +400° F (-45° to +200° C) ➀
7.6.4 Flow Body
Materials
316/316L stainless steel all welded
Carbon steel with stainless steel sensor
NPT or 150 pound flange – Refer to model number
1500 psig @ +70° F (103 bar @ +20° C), 1100 psig @ +400° F (76 bar @ +200° C)
-50° to +400° F (-45° to +200° C) ➀
Process connections
Pressure rating
Temperature rating
➀ For operating temperatures between +250° F and +400° F (+120° C and +200° C), either use remote electronics or a longer length insertion
probe to provide an additional four inches (100 mm) between the electronics and the compression fitting.
70
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
7.6.5 Physical – inches (mm)
4.49 (114)
3/4"
NPT
or M20
connection
A
B
5.18
(132)
6.49
(165)
Optional
compression
fitting
" or 1" NPT
recommended
Pipe
centerline
Dimension A:
3.33 (85) without display
3.88 (99) with display
Dimension B:
3.88 (99)
Insertion
Length
1" (25 mm)
Front View
Rotation clearance
NEMA 4X/7/9
Side View
4.00
(102)
4.49
(114)
3.95
(100)
3/4"
NPT
or M20
NEMA 4X/7/9
6.3 (160)
2 Holes
.38 (10) dia.
2.75
(70)
Insertion
length
3.00
(76)
2.00
(51)
3.50
(89)
3.75
(95)
3/4"
NPT
or M20
Transducer
cable connector
Main Electronics
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
3/4"
(19)
Remote Probe with Housing
71
7.6.5 Physical – inches (mm)
A
A
B
B
L1
L
L1
L
Length (L)
Code
L1
Height to
Centerline
Size
With Flow Without Flow With Flow
Without Flow
(A)
Conditioning Conditioning Conditioning Conditioning
0
1
1
3
Overall Height (B)
nPT
Flange
⁄2"
8 (203)
—
5 (127)
—
8.0 (203)
8.4 (213)
9.7 (246)
⁄4"
11.25 (285)
—
7.5 (190)
—
8.0 (203)
8.5 (216)
9.9 (251)
2
1"
15 (381)
—
10 (254)
—
8.0 (203)
8.6 (218)
10.1 (257)
3
11⁄2"
19.5 (495)
7.5 (191)
12 (305)
3.75 (95)
8.3 (210)
9.2 (234)
10.8 (274)
4
2"
26 (660)
7.5 (191)
16 (406)
3.75 (95)
9.5 (241)
10.7 (272)
12.5 (318)
5
3"
39 (991)
10 (254)
24 (610)
5 (127)
9.5 (241)
N/A
13.3 (338)
6
4"
52 (1321)
12 (305)
36 (914)
6 (152)
9.5 (241)
N/A
14.0 (356)
Flow conditioning on 1⁄2" to 1" is provided due to length of flow body and sensor design.
Optional flow conditioning plate and straight run is available on flow bodies 11⁄2" and larger.
Pressure Drop
Pressure Drop with Flow Conditioning Plate
Flow Rate – Nm3/hr
100
½" ¾" 1"
10
5
1
0.5
1½" 2"
5000 10000
3" 4"
5
1000
1000
500
500
Pressure Drop – millibar
100
50
Flow Rate – Nm3/hr
500 1000
100
10
5
5
1
0.1
100
50
50
10
10
50
100
500 1000
1½" 2"
1
0.5
5000 10000
3" 4"
1000
500
Pressure Drop – millibar
50
Pressure Drop – inches of water
1000
500
10
Pressure Drop – inches of water
5
100
50
10
5
1
0.1
1
10
5
100
50
1000
500
Flow Rate – SCFM
10000
5000
1
10
5
100
50
1000
500
10000
5000
Flow Rate – SCFM
Pressure drop is based on air at +70° F and 1 atmosphere (density = 0.075 lb/ft3). For other gases, pressure or temperatures,
estimate pressure drop by multiplying value from chart by actual density (at operating conditions) divided by 0.075.
72
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
7.7
Model Numbers
7.7.1 Transmitter
SIGnAL OuTPuT
0
1
2
4
4-20 mA
4-20 mA with HART
FOUNDATION fieldbus
4-20 mA with HART, Pulse/Alarm, second mA Output
dISPLAY
0
None
B
Plug-in display with keypad (with window)
CALIBRATIOn–InSERTIOn PROBE
Actual Gas Calibration
0
Special ➀
1
Air
2
Nitrogen
3
Hydrogen
4
Natural Gas
6
Digester Gas
7
Propane
8
Oxygen
Air Equivalency / Correlation
5
Gas Correlation ➀
9
Air Equivalency
CALIBRATIOn–FLOW BOdY
Actual Gas Calibration
A
Special ➀
B
Air
C
Nitrogen
D
Hydrogen
E
Natural Gas
G
Digester Gas
H
Propane
J
Oxygen
Air Equivalency / Correlation
F
Gas Correlation ➀
K
Air Equivalency
➀ Consult factory for approval
HOuSInG LOCATIOn / AGEnCY APPROVAL
3
Integral, general purpose, non-incendive, &
explosion proof FM/FMc/ATEX Ex d/IEC
4
Remote, general purpose, non-incendive, &
explosion proof FM/FMc/ATEX Ex d/IEC
E
Integral, general purpose, ATEX, Ex d+ ib (Zone 0)
F
Remote, general purpose, ATEX, Ex d+ ib (Zone 0)
EnCLOSuRE TYPE
0
Aluminum, 3⁄4" NPT
1
Aluminum, M20
T
A
2
A
0
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
73
7.7.2 Insertion Probe
THERMATEL PROBE
TE
TM
Probe length in inches
Probe length in centimeters
PROBE TYPE
R
⁄4" diameter probe
3
MATERIALS OF COnSTRuCTIOn
A
B
316/316L Stainless Steel
Hastelloy C
PROCESS COnnECTIOn SIZE
00
03
04
05
06
11
21
22
Compression Fitting Utilized (customer supplied)
3
⁄4" NPT SS compression fitting with Teflon Ferrules
3
⁄4" NPT SS compression fitting with Stainless Steel Ferrules
1" NPT SS compression fitting with Teflon Ferrules
1" NPT SS compression fitting with Stainless Steel Ferrules
Threaded 3⁄4" NPT
Threaded 1" NPT
Threaded G1 (1" BSP)
AnSI FLAnGES
23
1" 150# ANSI raised face flange
24
1" 300# ANSI raised face flange
33
11⁄2" 150# ANSI raised face flange
34
11⁄2" 300# ANSI raised face flange
43
2" 150# ANSI raised face flange
44
2" 300# ANSI raised face flange
dIn FLAnGES
BB DN 25 PN 16/25/40
CB DN 40 PN 16/25/40
DA DN 50 PN 16
DB DN 50 PN 25/40
EN 1092-1, Type A
EN 1092-1, Type A
EN 1092-1, Type A
EN 1092-1, Type A
PROBE LEnGTH
2.6 to 99.9 inches (example 8.5" = 085)
Minimum lengths: 2.6" (026) with threaded process connection
2.8" (028) with flanged process connection
4.5" (045) with compression fitting proces
connection
7 to 253 centimeters (example: 18 cm = 018)
Minimum lengths:
7 cm (007) with threaded or flanged process connection
11 cm (011) with compression fitting process connection
T
74
A
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
7.7.4 Flow Body
MATERIALS OF COnSTRuCTIOn
A
1
All stainless steel
Carbon steel body with stainless steel sensor
SIZE
0
1
2
3
4
5
6
⁄2 inch
⁄4 inch
1 inch
11⁄2 inch
2 inch
3 inch
4 inch
1
3
PROCESS COnnECTIOn TYPE
1
NPT Threads (only when Digit 5 = 0, 1, 2, 3, or 4
3
150# Flange
➀ Only when digit 5 = 0, 1, 2, 3, or 4
FLOW COndITIOnInG PLATE (stainless steel)
A
Not provided
B
Provided (only when Digit 5 = 3, 4, 5, or 6)
Only when Digit 5 = 3, 4, 5, or 6. Flow conditioning on 1/2" to 1" is already provided
due to length of flow body and sensor design. Optional flow conditioning is available on
flow bodies larger than 1" which includes additional straight run and conditioning plate.
¡
T
F
T
0
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
0
0
75
7.7.5 Connecting Cable
FOR CABLE LEnGTHS uP TO 150 FEET
037-3313-XXX (Cable length in feet)—10 feet minimum,
150 feet maximum length
Example: 50 feet = 050
0
3
7
3
3
1
3
FOR CABLE LEnGTHS uP TO 45 METERS
037-3314-XXX (Cable length in meters)—3 meters minimum,
45 meters maximum length
Example: 8 meters = 008
0
3
7
3
3
1
4
FOR CABLE LEnGTHS BETWEEn 150 And 500 FEET
037-3319-XXX (Cable length in feet)— 500 feet
maximum length
Example: 300 feet = 300
0
3
7
3
3
1
9
FOR CABLE LEnGTHS BETWEEn 45 And 150 METERS
037-3320-XXX (Cable length in meters)—150 meters
maximum length
Example: 80 meters = 080
0
76
3
7
3
3
2
0
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
7.8 References
1. FOUNDATION fieldbus™: A Pocket Guide, Ian Verhappen, Augusto Pereira
2. FOUNDATION fieldbus™—System Engineering Guidelines, AG–181
Appendix A – Transducer Block Parameters
ITEM
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
PARAMETER nAME
BLOCK_STRUCTURE
ST_REV
TAG_DESC
STRATEGY
ALERT_KEY
MODE_BLK
BLOCK_ERR
UPDATE_EVT
BLOCK_ALM
TRANSDUCER_DIRECTORY
TRANSDUCER_TYPE
XD_ERROR
COLLECTION_DIRECTORY
VOLUME_FLOW
VOLUME_FLOW_UNIT
MASS_FLOW
MASS_FLOW_UNIT
PROCESS_TEMP
TEMPERATURE_UNIT
DENSITY_UNIT
INSIDE_DIAMETER
DIAMETER_UNIT
FLOW_AREA
AREA_UNIT
USER_UNIT
DAMPING
R_TOTALIZER_MODE
R_TOTALIZER_MULTIPLIER
R_TOTALIZER_FLOW
R_TOTALIZER_UNIT
R_TOTALIZER_TIME
RESET_TOTALIZER
NR_TOTALIZER_MULTIPLIER
NR_TOTALIZER_FLOW
NR_TOTALIZER_UNIT
NR_TOTALIZER_TIME
INSTALL_FACTOR_A
INSTALL_FACTOR_B
INSTALL_FACTOR_C
STP_TEMPERATURE
STP_PRESSURE
GAS_CAL_TABLE
UPPER_FLOW_LIMIT
UPPER_CAL_POINT
TA2_SENSOR_TYPE
TZERO_FACTOR
FZERO_FACTOR
COEFFICIENT_RATIO
SLOPE
POWER_PREDICTOR
FACTORY_PARAMETER_1
PARAMETER LABEL
BLOCK STRUCT
ST REV
TAG DESC
STRATEGY
ALERT KEY
MODE BLK
BLOCK ERR
UPDATE EVT
BLOCK ALM
XD DIRECTORY
XD TYPE
XD ERROR
COLLECT DIR
Flow
Flow Unit
Mass
Mass Unit
Process Temp
Temperature Unit
Density Unit
Inside Diameter
Diameter Unit
Flow Area
Area Unit
User Unit
Damping
R Totalizer Mode
R Totalizer Multiplier
R Totalizer Flow
R Totalizer Unit
R Totalizer Time
Reset R Totalizer
NR Totalizer Multiplier
NR Totalizer Flow
NR Totalizer Unit
NR Totalizer Time
Install Factor A
Install Factor B
Install Factor C
STP Temperature
STP Pressure
Gas Cal Table
Upper Flow Limit
Upper Cal Point
Sensor Type
TZero
FZero
Coefficient Ratio
Slope
Power Predictor
Factory Parameter 1
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
ITEM
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
PARAMETER nAME
FACTORY_PARAMETER_2
FACTORY_PARAMETER_3
FACTORY_PARAMETER_4
FACTORY_PARAMETER_5
GAS_A_TEMP_CORR_A
GAS_A_TEMP_CORR_B
GAS_A_TEMP_CORR_C
GAS_A_DENSITY
GAS_A_AIR_EQUIV_MODE
GAS_A_COEFF_A
GAS_A_COEFF_B
GAS_A_COEFF_C
GAS_A_COEFF_D
GAS_A_COEFF_E
GAS_A_SET_POINT
PARAMETER LABEL
Factory Parameter 2
Factory Parameter 3
Factory Parameter 4
Factory Parameter 5
Gas A TCC-A
Gas A TCC-B
Gas A TCC-C
Gas A Density
Gas A Air Equiv Mode
Gas A Coeff Ag
Gas A Coeff Bg
Gas A Coeff Cg
Gas A Coeff Dg
Gas A Coeff Eg
Gas A Set Point
GAS_A_ZERO_FLOW_SIGNAL
GAS_A_LOW_FLOW_CUTOFF
Gas A Zero Flow Signal
Gas A Low Flow Cutoff
GAS_A_CALIB_PIPE_AREA
GAS_B_TEMP_CORR_A
GAS_B_TEMP_CORR_B
GAS_B_TEMP_CORR_C
GAS_B_DENSITY
GAS_B_AIR_EQUIV_MODE
GAS_B_COEFF_A
GAS_B_COEFF_B
GAS_B_COEFF_C
GAS_B_COEFF_D
GAS_B_COEFF_E
GAS_B_SET_POINT
Gas A Calib Pipe Area
Gas B TCC-A
Gas B TCC-B
Gas B TCC-C
Gas B Density
Gas B Air Equiv Mode
Gas B Coeff Ag
Gas B Coeff Bg
Gas B Coeff Cg
Gas B Coeff Dg
Gas B Coeff Eg
Gas B Set Point
GAS_B_ZERO_FLOW_SIGNAL
GAS_B_LOW_FLOW_CUTOFF
Gas B Zero Flow Signal
Gas B Low Flow Cutoff
Gas B Calib Pipe Area
GAS_B_CALIB_PIPE_AREA
CAL_TABLE_A_LENGTH
TABLE_A_POINT_01
TABLE_A_POINT_02
TABLE_A_POINT_03
TABLE_A_POINT_04
TABLE_A_POINT_05
TABLE_A_POINT_06
TABLE_A_POINT_07
TABLE_A_POINT_08
TABLE_A_POINT_09
TABLE_A_POINT_10
TABLE_A_POINT_11
TABLE_A_POINT_12
TABLE_A_POINT_13
TABLE_A_POINT_14
TABLE_A_POINT_15
TABLE_A_POINT_16
TABLE_A_POINT_17
Cal Table A Length
Table A Pt 01
Table A Pt 02
Table A Pt 03
Table A Pt 04
Table A Pt 05
Table A Pt 06
Table A Pt 07
Table A Pt 08
Table A Pt 09
Table A Pt 10
Table A Pt 11
Table A Pt 12
Table A Pt 13
Table A Pt 14
Table A Pt 15
Table A Pt 16
Table A Pt 17
77
Appendix A (continued)
ITEM
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
78
PARAMETER nAME
TABLE_A_POINT_18
TABLE_A_POINT_19
TABLE_A_POINT_20
TABLE_A_POINT_21
TABLE_A_POINT_22
TABLE_A_POINT_23
TABLE_A_POINT_24
TABLE_A_POINT_25
TABLE_A_POINT_26
TABLE_A_POINT_27
TABLE_A_POINT_28
TABLE_A_POINT_29
TABLE_A_POINT_30
CAL_TABLE_B_LENGTH
TABLE_B_POINT_01
TABLE_B_POINT_02
TABLE_B_POINT_03
TABLE_B_POINT_04
TABLE_B_POINT_05
TABLE_B_POINT_06
TABLE_B_POINT_07
TABLE_B_POINT_08
TABLE_B_POINT_09
TABLE_B_POINT_10
TABLE_B_POINT_11
TABLE_B_POINT_12
TABLE_B_POINT_13
TABLE_B_POINT_14
TABLE_B_POINT_15
TABLE_B_POINT_16
TABLE_B_POINT_17
TABLE_B_POINT_18
TABLE_B_POINT_19
TABLE_B_POINT_20
TABLE_B_POINT_21
TABLE_B_POINT_22
TABLE_B_POINT_23
TABLE_B_POINT_24
TABLE_B_POINT_25
TABLE_B_POINT_26
TABLE_B_POINT_27
TABLE_B_POINT_28
TABLE_B_POINT_29
TABLE_B_POINT_30
ENTER_PASSWORD
USER_PASSWORD
PARAMETER LABEL
Table A Pt 18
Table A Pt 19
Table A Pt 20
Table A Pt 21
Table A Pt 22
Table A Pt 23
Table A Pt 24
Table A Pt 25
Table A Pt 26
Table A Pt 27
Table A Pt 28
Table A Pt 29
Table A Pt 30
Cal Table B Length
Table B Pt 01
Table B Pt 02
Table B Pt 03
Table B Pt 04
Table B Pt 05
Table B Pt 06
Table B Pt 07
Table B Pt 08
Table B Pt 09
Table B Pt 10
Table B Pt 11
Table B Pt 12
Table B Pt 13
Table B Pt 14
Table B Pt 15
Table B Pt 16
Table B Pt 17
Table B Pt 18
Table B Pt 19
Table B Pt 20
Table B Pt 21
Table B Pt 22
Table B Pt 23
Table B Pt 24
Table B Pt 25
Table B Pt 26
Table B Pt 27
Table B Pt 28
Table B Pt 29
Table B Pt 30
Enter Password
New User Password
ITEM
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
PARAMETER nAME
DEVICE_STATUS
RUN_TIME
SIGNAL
FIXED_SIGNAL_MODE
FIXED_SIGNAL_VALUE
DELTA_TEMP
HEATER_SETTING
MAX_PROCESS_TEMP
PARAMETER LABEL
Device Status
Run Time
Signal
Fixed Signal Mode
Fixed Signal Value
Delta Temp
Heater Setting
Max Process Temp
RESET_MAX_PROCESS_TEMP Reset Max Process Temp
ELECTRONICS_TEMPERATURE Electronics Temp
MAX_ELECTRONICS_TEMP
MIN_ELECTRONICS_TEMP
Max Elec Temp
Min Elec Temp
RESET_ELECTRONICS_TEMPS
Reset Electronics Temps
NSP_VALUE
LOCAL_DISPLAY_SELECT
LOCAL_TAG
DATE_CODE
NSP Value
Local Display Select
Local Tag
Date Code
MAGNETROL_SERIAL_NUMBER MAGNETROL S/N
FIRMWARE_VERSION
Firmware Version
CALIB_LOCATION
Calibration Location
CALIB_DATE
Calibration Date
CALIB_WHO
Calibration Who
PROBE_TEMP_DATA
Probe Temp Data
RTD_CAL_RESULT
RTD Cal Result
HEATER_CAL_RESULT
Heater Cal Result
PROC_DATA_STATE
Proc Data State
CAL_TEMP
Cal Temp
CURRENT_SETTING
Current Setting
PWM_SETTING
PWM Setting
LOW_CAL_VALIDATE
Low Cal Delta T
HI_CAL_VALIDATE
High Cal Delta T
HISTORY_CONTROL
History Control
HISTORY_CAPTURE_TIME
History Capture Time
NUM_OF_HIST_EVENTS
Number of Events
HIST_ENTRY_1
History Entry 1
HIST_ENTRY_2
History Entry 2
HIST_ENTRY_3
History Entry 3
HIST_ENTRY_4
History Entry 4
HIST_ENTRY_5
History Entry 5
HIST_ENTRY_6
History Entry 6
HIST_ENTRY_7
History Entry 7
HIST_ENTRY_8
History Entry 8
HIST_ENTRY_9
History Entry 9
HIST_ENTRY_10
History Entry 10
RESET_HISTORY
Reset History
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
Appendix B
The flow measurement of the TA2 assumes that the end of the
probe is one inch past the centerline and the presence of a fully
developed flow profile. See Figure A.
RD = 3,000,000
RD = 4,000
Figure B
Flow Profile Following
Single Elbow
Figure C, below, indicates the minimum recommended straightrun distances required to obtain the desired fully developed flow
profile. If these straight-run distances are not available, the overall accuracy of the flow measurement will be affected; however,
the repeatability of the measurement will be maintained.
Figure A
Turbulent Flow Profile
As gas flows in a pipe or duct, the flow profile will change with
obstructions and changes in flow direction. As the gas flows
around an elbow, the momentum causes the gas velocity on the
outside of the elbow to increase and the velocity on the inside to
decrease. See figure B.
The user has the ability to enter correction factors to compensate
for non-ideal flow profile conditions.
FLOW
FLOW
15 diameters
5
diameters
15 diameters
5
diameters
Reduction
90-degree Elbow
FLOW
FLOW
20 diameters
5
diameters
15 diameters
Two 90-degree Elbows in Plane
5
diameters
Expansion
FLOW
FLOW
35 diameters
5
diameters
50 diameters
Two 90-degree Elbows out of Plane
5
diameters
Control Valve - It is recommended that control
valves be installed downstream of the flow meter.
Figure C – Probe Installations
79
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
Appendix B (continued)
Conditioning Plates
Flow conditioning plates may be provided in applications where
limited straight run is available. Plates are available in flow body
type sensor designs (TFT) from 1.5” to 4” pipes. Plates may be
purchased separately for pipe sizes 4” to 12” when using insertion
probes (TXR).
The plate should be installed 2-5 diameters downstream of the
nearest obstruction, change in pipe inside diameter or change in
flow direction. For TXR designs, the insertion probe can be
installed 8 pipe diameters downstream of the plate with 5 diameters required downstream of the TXR. For TFT designs with the
plate at the entrance, the downstream is provided in the length of
the TFT.
Plates are to be fitted with gaskets (customer supplied) in between
flanges. If plates are not included and recommended straight run
is not adhered to, the TA2 will provide repeatable measurement
and the installation factors can be utilized.
THICKNESS
INSIDE DIAMETER
OUTSIDE DIAMETER
Part Number
Description
OD in (mm)
ID in (mm)
Thickness in (mm)
004-8986-001
4" 316 Stainless Steel
6.19 (157.2)
3.83 (97.3)
0.50 (12.7)
004-8986-002
4" Carbon Steel
6.19 (157.2)
3.83 (97.3)
0.50 (12.7)
004-8986-003
4" PVC
6.19 (157.2)
3.83 (97.3)
0.50 (12.7)
004-8986-004
5" 316 Stainless Steel
7.31 (185.7)
4.81 (122.2)
0.63 (16)
004-8986-005
5" Carbon Steel
7.31 (185.7)
4.81 (122.2)
0.63 (16)
004-8986-006
5" PVC
7.31 (185.7)
4.81 (122.2)
0.63 (16)
004-8986-007
6" 316 Stainless Steel
8.50 (215.9)
5.76 (146.3)
0.75 (19.1)
004-8986-008
6" Carbon Steel
8.50 (215.9)
5.76 (146.3)
0.75 (19.1)
004-8986-009
6" PVC
8.50 (215.9)
5.76 (146.3)
0.75 (19.1)
004-8986-010
8" 316 Stainless Steel
10.62 (269.7)
7.63 (193.7)
1.00 (25.4)
004-8986-011
8" Carbon Steel
10.62 (269.7)
7.63 (193.7)
1.00 (25.4)
004-8986-012
8" PVC
10.62 (269.7)
7.63 (193.7)
1.00 (25.4)
004-8986-013
10" 316 Stainless Steel
12.75 (323.9)
9.56 (242.9)
1.25 (31.8)
004-8986-014
10" Carbon Steel
12.75 (323.9)
9.56 (242.9)
1.25 (31.8)
004-8986-015
10" PVC
12.75 (323.9)
9.56 (242.9)
1.25 (31.8)
004-8986-016
12" 316 Stainless Steel
15.00 (381)
11.37 (288.9)
1.50 (38.1)
004-8986-017
12" Carbon Steel
15.00 (381)
11.37 (288.9)
1.50 (38.1)
004-8986-018
12" PVC
15.00 (381)
11.37 (288.9)
1.50 (38.1)
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
80
Appendix B (continued)
Pressure Drop Charts
1000
1.5"
2"
3"
4"
5"
6"
Pressure Drop (inches of water)
100
8"
10"
12"
10
1
0.1
0.01
0.001
0.0001
10
100
Flow Rate (SCFM)
1000
1000
1.5"
2"
3"
4"
5"
6"
100
Pressure Drop (millibar)
10000
8"
10"
12"
10
1
0.1
0.01
0.001
0.0001
10
81
100
Flow Rate (Nm3/h)
1000
10000
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
Glossary
Atmospheric pressure: Average pressure at sea level.
One atmosphere pressure is equal to 14.696 psia or
29.921 inches of mercury or 406.8 inches of water.
Bar: Unit of pressure measurement. One bar equals
14.504 pounds per square inch or 100 kilopascals.
Celsius (C): Unit of temperature measurement. At one
atmosphere pressure: at zero degrees Celsius, water
freezes; at +100 degrees Celsius, water boils. One
degree Celsius is equal to 1.8 degrees Fahrenheit.
Tc= (Tf -32) ÷ 1.8
Fahrenheit (F): Unit of temperature measurement. At
one atmosphere pressure: at +32 degrees Fahrenheit,
water freezes; at +212 degrees Fahrenheit, water boils.
Tf = 1.8 × Tc +32
Kelvin: Unit of temperature measurement referenced
to absolute conditions.
Kelvin = Degrees Celsius + 273.15
NIST: National Institute of Science and Technology
Nm3/h (Normal cubic meters per hour): Flow measurement at normal (standard) conditions (STP).
PSIA: Absolute pressure in pounds per square inch.
Zero psia is an absolute vacuum.
1 atmosphere pressure = 14.696 psia
PSIA = PSIG + 14.696
The following symbols and definitions are used in the
software configuration:
Install Factors: The TA2 assumes a fully developed
flow profile at the sensor location. Differences in flow
profile or other installation issues can affect the measurement of the TA2. Advanced users have the ability to
adjust the TA2 measurement using a polynomial relationship in the form of:
Corrected flow = A+Bx+Cx 2
The default is B = 1 and A and C factors = 0. The units
for “x” are the units of measurement selected in the
Transducer Block under “USER_UNIT.” The most
common adjustment is the linear “B” factor.
Once determined, the Install Factors can be entered
into the TA2 under the Advanced Configuration menu.
See section 3.5.9.
Mass flow: Measured in various units, typically LB/Hr
or Kg/h. An input of the flow area of the pipe or duct
and density is required.
STP conditions: The mass flow rate is based on a given
set of Standard Temperature and Pressure (STP) conditions. MAGNETROL uses default of +70° F and one (1)
atmosphere for STP conditions. The STP conditions
may be modified to match the user’s standards. If the
STP conditions are modified, the TA2 will recalculate
the flow rates at the specified STP conditions.
The advanced configuration menu permits the user to
enter any desired temperature and cycle between selection of one (1) bar or one (1) atmosphere of pressure.
PSIG: Gauge pressure in pounds per square inch above
atmospheric pressure.
Totalized flow: Provides a measurement of the total
flow in units specified.
Rankine: Unit of temperature measurement referenced
to absolute conditions.
Flow: Measured in various units, typically SCFM (standard cubic feet per minute), SCFH (standard cubic feet
per hour), MMSCFD (million standard Cubic Feet per
Day), or Nm3/h (normal cubic meters per hour), referenced to standard conditions. An input of the flow area
of the pipe or duct is required to obtain this value.
Degrees Rankine = Degrees Fahrenheit + 459.67
SCFH (standard cubic feet per hour): Flow measurement at standard (STP) conditions.
SCFM (standard cubic feet per minute): Flow measurement at standard (STP) conditions.
SFPM (standard feet per minute): Velocity of gas
flowing in the pipe or duct referenced to standard
(STP) conditions.
Tag line: Tag lines are programmable for both
Display (16-character Local Tag)
Initially the local tag line on the display reads
“MAGNETROL TA2”. This can be changed from the
advanced configuration section of the software.
See Device Information Section 3.5.10.
Standard Conditions: Typical is +70° F and one
atmosphere pressure (14.7 psia) or 0° C and one bar
pressure (14.5 psia).
STP (standard pressure and temperature): Also
referred to as standard conditions.
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
82
Flow Application Questionnaire
Thermatel Model TA2
(Please fill out in detail.)
BuLLETIn: 54-350.7
REFEREnCE InFORMATIOn
Customer/Company:
Date:
Contact/Title:
Phone:
Fax:
FOR OFFICE USE:
Submitted by:
InSTRuMEnT
Model Number: Electronics
Probe/Flow Body:
Remote Cable:
Compression Fitting/RPA:
Quantity:
PROCESS dATA
Application:
Gas composition (vol%):
Condensed Moisture in Gas?
No
Yes
Dust Buildup?
Maximum
None
Light
Normal
Heavy
Type of Dust:
Minimum
Units
Flow Rate
Temperature
Pressure
STP Conditions
Specify Standard Temperature and Pressure conditions (If not specified Magnetrol uses 70° F and 1 Atmosphere)
Temperature:
Pressure:
1 Atmosphere
1 Bar
PIPE dIMEnSIOnS
duCT InTERnAL dIMEnSIOnS
Pipe Diameter:
inch Schedule
or Pipe ID:
Diameter
units
or Metric Pipe:
Rectangular dimensions
mm OD
units
units
mm wall thickness
FACTORY COnFIGuRATIOn (Check one)
SCFM*
Nm3/min
lbs/min*
SCFH*
Nm3/h*
lbs/h*
SCFD
Nm /d
lbs/d
MSCFD
NI/min
kg/min*
MMSCFD*
NI/h*
kg/h*
NI/d
kg/d
3
4 mA value (0%)
20 mA value (100%)
Flow
Temperature
(TA2-A4)
F
* Indicates which units are available for FOUNDATION™ fieldbus option
PROBE LEnGTH CALCuLATIOnS
The probe can be ordered in 0.1 inch or 1 cm increments. This is most important when used with a
flange or threaded connection to ensure that the sensor is located on the centerline of the pipe. The
active portion of the sensor is located 1" (2.5 cm) from the end of the probe. Refer to illustration at right.
D/2
D
1"(2.5 cm)
REMARKS
83
54-650 Thermatel® Model TA2 Transmitter - FOUNDATION fieldbus™
ASSuREd QuALITY & SERVICE COST LESS
Service Policy
Return Material Procedure
Owners of MAGNETROL may request the return of a or
any part of a control for complete rebuilding or replacement. They will be rebuilt or replaced promptly. Controls
returned under our service policy must be returned by
prepaid transportation. MAGNETROL will repair or
replace the control at no cost to the purchaser (or owner)
other than transportation if:
So that we may efficiently process any materials that are
returned, it is essential that a “Return Material
Authorization” (RMA) number be obtained from the factory, prior to the material’s return. This is available through
a MAGNETROL local representative or by contacting the
factory. Please supply the following information:
1. Returned within the warranty period; and
2. The factory inspection finds the cause of the claim
to be covered under the warranty.
If the trouble is the result of conditions beyond our control; or, is NOT covered by the warranty, there will be
charges for labor and the parts required to rebuild or
replace the equipment.
In some cases it may be expedient to ship replacement
parts; or, in extreme cases a complete new control, to
replace the original equipment before it is returned. If
this is desired, notify the factory of both the model and
serial numbers of the control to be replaced. In such
cases, credit for the materials returned will be determined
on the basis of the applicability of our warranty.
1.
2.
3.
4.
5.
Company Name
Description of Material
Serial Number
Reason for Return
Application
Any unit that was used in a process must be properly
cleaned in accordance with OSHA standards, before it is
returned to the factory.
A Material Safety Data Sheet (MSDS) must accompany
material that was used in any media.
All shipments returned to the factory must be by prepaid
transportation.
All replacements will be shipped F.O.B. factory.
No claims for misapplication, labor, direct or consequential damage will be allowed.
705 Enterprise Street • Aurora, Illinois 60504-8149 • 630-969-4000 • Fax 630-969-9489
[email protected] • www.magnetrol.com
Copyright © 2015 Magnetrol International, Incorporated. All rights reserved. Printed in the USA.
Performance specifications are effective with date of issue and are subject to change without notice.
Magnetrol & Magnetrol logotype and Thermatel are registered trademarks of Magnetrol International, Incorporated.
CSA logotype is a registered trademark of Canadian Standards Association.
Hastelloy is a registered trademark of Haynes International, Inc.
PACTware is trademark of PACTware Consortium.
Teflon® is a registered trademark of DuPont.
BuLLETIn: 54-650.0
EFFECTIVE: January 2015