XTC Transmitters Model 340S SteaMeter (UM340S-1, Rev 2, 7/97) - PDF 970 KB

USER'S MANUAL
UM340S-1
Rev. 2
July 1997
IMPORTANT
Read this User’s Manual
before reading UM340-1.
H
XTCTM Transmitters
Model 340S SteaMeterTM
MOORE PRODUCTS CO., Spring House, PA 19477-0900
An ISO 9001 registered company.
UM340S-1
Contents
TABLE OF CONTENTS
SECTION AND TITLE
PAGE
1.0 INTRODUCTION................................................................................................................................. 1
1.1 PRODUCT DESCRIPTION............................................................................................................. 1
2.0 MODEL 275 UNIVERSAL HART COMMUNICATOR ................................................................. 3
3.0 COMMISSIONING AND BENCH TESTING................................................................................... 4
4.0 INSTALLATION .................................................................................................................................. 4
5.0 POST-INSTALLATION CHECKOUT .............................................................................................. 4
6.0 ON-LINE CONFIGURATION AND OPERATION ......................................................................... 4
6.1.3 Quick Access Key Functions..................................................................................................... 4
6.1.3.1 XMTR Variables ............................................................................................................... 4
6.1.3.2 Status ................................................................................................................................. 5
6.1.3.3 Totalizer Control ............................................................................................................... 5
6.1.3.5 Range XMTR .................................................................................................................... 5
6.2.1 SmartDisplay Functionality....................................................................................................... 6
7.0 CALIBRATION AND MAINTENANCE........................................................................................... 6
7.1.2 Zero Trim................................................................................................................................... 6
8.0 CIRCUIT DESCRIPTION................................................................................................................... 6
9.0 DESIGNATORS AND SPECIFICATIONS ....................................................................................... 6
9.1 MODEL DESIGNATIONS............................................................................................................... 7
9.2 ACCESSORIES................................................................................................................................. 7
9.3 SPECIFICATIONS............................................................................................................................ 9
9.3.1 Mechanical Specifications......................................................................................................... 9
9.3.2 Electrical Specifications ............................................................................................................ 9
9.3.3 Performance and Functional Specifications ............................................................................ 10
9.3.4 Hazardous Area Classifications............................................................................................... 12
A.0 APPENDIX A - FUNCTION BLOCKS ........................................................................................... 13
A.1 WRITE PROTECT BLOCK........................................................................................................... 13
A.2 SENSOR INPUT BLOCK.............................................................................................................. 13
A.3 CHARACTERIZER ....................................................................................................................... 14
A.4 TOTALIZER .................................................................................................................................. 14
A.5 OPERATOR DISPLAY BLOCK ................................................................................................... 15
A.6 TRANSMITTER ID ....................................................................................................................... 16
A.7 OUTPUT......................................................................................................................................... 17
A.8 STEAM SETTINGS ....................................................................................................................... 17
B.0 APPENDIX B - HAZARDOUS AREA INSTALLATION ............................................................. 18
C.0 TRANSMITTER CONFIGURATION DOCUMENTATION....................................................... 18
D.0 ELEVATION AND SUPPRESSION CORRECTIONS ................................................................. 20
July 1997
i
Contents
UM340S-1
LIST OF FIGURES
FIGURE AND TITLE
PAGE
1-1 Model 340S Transmitter ........................................................................................................................ 2
2-1 Configuration Map for Model 340S Used With a Model 275 HART Communicator .......................... 3
9-1 Dimensions, Model 340S SteaMeter ................................................................................................... 11
CHANGES FOR REVISON 2
Significant changes for Revision 2 are listed below and are indicated in text by change bars in the page
margins.
Section 1 .......................In Section 1.1 Product Description, ‘equivalent water mass flow range’ added to
the list of required configuration parameters.
Section 9 .......................In Section 9.3.4 Hazardous Area Classifications, the reference to screened core
cable was removed.
Appendix A...................In A.3 Characterizer the values of X and Y were revised. In A.5 Operator
Display Block, raw flow parameters corrected. Text under paragraph title ‘Model
340S Raw Flow Lo, Hi, Units’ revised.
Appendix C ...................Characterizer Block X and Y values revised. Operator Display Block parameters
corrected.
FAX Request.................Page added.
ii
July 1997
UM340S-1
Installation, Configuration, and Maintenance
1.0 INTRODUCTION
Use this manual when installing, configuring, or servicing a Moore Products Co. Model 340S
SteaMeterTM.
Two User’s Manuals are included in a Model 340S shipment:
•
UM340S-1, this manual, contains Model 340S specific information and references to sections in the
accompanying UM340-1. The section numbers and titles in this manual are assigned to agree with
the equivalent sections in UM340-1 and, therefore, are not sequential (e.g., Section 7.0 is followed by
Section 7.1.2). Skipped section numbers and related information will be found in UM340-1. UM3401 page numbers are for Issue 1 and may be slightly different in later issues.
•
UM340-1, User’s Manual, XTC Transmitters, Series 340 Pressure Transmitter-Controllers contains
information that applies to all Series 340 Transmitters, such as:
•
•
•
•
Product support options (Section 1.4)
Installation wiring diagrams (Section 4)
Configuration procedures using the Model 275 Universal HART Communicator and the local
magnetic switches (Section 6)
Troubleshooting techniques (Section 7)
Read UM340S-1 first since it contains the Model 340S specific information and refers to UM340-1 where
appropriate.
IMPORTANT
Save this User’s Manual for installing, configuring, operating, and
servicing a Model 340S transmitter.
1.1 PRODUCT DESCRIPTION
The Model 340S SteaMeter is a differential pressure type flowmeter capable of measuring saturated steam
mass flow. It can calculate and communicate mass flow, energy flow or volumetric flow using a standard
4-20 mA output signal. SteaMeter can also use the HART protocol to communicate static pressure, mass
flow total and energy flow total. Figure 1-1 shows the instrument.
Mass flow is calculated with few inputs from the user. Required configuration parameters include:
• Differential pressure and mass flow range (for scaling the 4-20 mA output)
• Equivalent water mass flow range
• Steam quality
• Steam reference specific volume
The transmitter measures the static and differential pressure using a single sensor. A mounting pressure
correction is applied to correct the static pressure signal to 14.696 psia at atmospheric pressure. The static
pressure is then used as an input to the built-in steam tables to produce the steam temperature, v fg , v f ,
h fg , and h f as outputs. The units for T are °C, v are ft 3 lbm and h BTU/lbm.
The transmitter also corrects the differential pressure signal for thermal effects on the elements in direct
contact with the steam. The equation for correcting the normalized differential pressure is:
July 1997
1
Installation, Configuration, and Maintenance
UM340S-1
120º
Nameplate
Enclosure
Rotation
Magnetic
Switches:
Zero
Damping
Full Scale
120º
Electronics Module and
Optional Smart Display
Loop Terminals
and Isolated Tie
Point
Electrical Entrance,
1/2-14 NPT or
M20 X 1.5 Tapped
Hole, 2 Places
Enclosure
Ground
Screw
_
+
TIE
End Cap
Enclosure Rotation
Set Screw
H
Vent/Drain Plug
Process Connection
Block, 1/2 NPT
Tapped Hole
(See Note 1)
Process Connection
1/4 NPT
Tapped Hole
Embossed Arrow
Indicates High
Pressure Port
7/16-20 Tapped
Hole, 8 Places
X03024S1
Notes:
Vent/Drain Plug
(Side Vent Options Top, Bottom, or Both)
1. Process Connection Blocks can be rotated 180º to give the following
connection centers: 2.00 (50.1), 2.13 (54.1), or 2.25 (57.2).
Dimensions are in inches (millimeters).
FIGURE 1-1 Model 340S Transmitter
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UM340S-1
Installation, Configuration, and Maintenance
dp = dpn - Et • (Tsteam - Tref ) • dpn
where Tref is 20°C and E t is the user-configurable Thermal Factor. The default value for the Thermal
Factor is 0.0019.
Next the transmitter calculates the raw, uncompensated volumetric flow f(dp) by passing the differential
pressure through the square root extractor, characterizer, or both. The raw flow is then converted into the
equivalent mass flow rate Qe and the energy flow rate E using the following equations:
Qe = f(dp) • vr / v x
E = Qe • hx
v x = v f + x • v fg
hx = h f + x • h fg
2.0 MODEL 275 UNIVERSAL HART COMMUNICATOR
Model 340S Device Descriptions are available for the Model 275 HART Communicator and other HART
host devices. See Figure 2-1 for a Model 340S configuration map. Configuration and operation details for
using the Model 275 HART Communicator are found in UM340-1, Section 2.
Write
Protect
Sensor Input
Block
Configure
Transmitter
Set DP Range,
Damping, Sqrt
Totalizer
Block
Characterizer
Block
On-Line
FIGURE 2-1 Configuration Map for
Model 340S used with a Model
275 HART Communicator
Operator Display
Block
Set Display,
Steam Units
Transmitter
ID Block
Set Tag, Poll
Address
Output Block
Set Failsafe,
4-20mA Switch
Steam Settings
Calibrate/
Test
Calibrate
Zero Trim
SP Trim
DAC
Self Test
4 mA
Loop
Override
20 mA
Other
End
Quick
Access
July 1997
Variables
View General Readings, Mass Flow, Energy Flow
Status
View Errors, Alarms, etc.
Totalizer
Start, Stop, Reset
Range
Set Range, Eng. Units
3
Installation, Configuration, and Maintenance
UM340S-1
3.0 COMMISSIONING AND BENCH TESTING
Pre-installation commissioning and bench test procedures are described in UM340-1, Section 3.
Guidelines are provided for testing communications, verifying the configuration and testing the
transmitter output.
4.0 INSTALLATION
Complete mechanical and electrical installation recommendations can be found in UM340-1, Section 4.
The Model 340S is identical to the Model 340D with respect to size, shape and physical appearance. Use
the following table to quickly find the appropriate information.
FIGURE
Differential Flow Measurement Piping for Gas and Liquid
Point-To-Point Network (Analog Mode)
2" Pipe Mount Bracket
Universal Mounting Bracket
UM340-1 REFERENCE
Figure 4-1, page 4-5
Figure 4-6, page 4-11
Figure 4-10, page 4-23
Figure 4-12, page 4-26
5.0 POST-INSTALLATION CHECKOUT
Post-installation checkout is described in UM340-1, Section 5. Instructions are included for verifying the
electrical network installation.
6.0 ON-LINE CONFIGURATION AND OPERATION
General procedures for configuring Series 340 transmitters from a Model 275 HART Communicator are
found in UM340-1, Section 6. The Model 340S is configured in the same manner as any other XTC
Transmitter. The only difference is that the Model 340S has a subset of function blocks for saturated
steam flow measurement. The following sub-sections replace those in UM340-1.
6.1.3 Quick Access Key Functions
The next few paragraphs describe use of the factory-supplied Quick Access Key options. User-selected
options can be added to the Quick Access Key menu as described in UM340-1, Section 2.6.1. To access
the Quick Access Key functions, press the Quick Access Key (1) to power-up the communicator or (2)
from any on-line menu when connected to a transmitter.
The four Quick Access Key options provided with the Model 340S Transmitters are:
• XMTR Variables
• Status
• Totalizer Control
• Range XMTR
6.1.3.1 XMTR Variables
The XMTR Variables Quick Access Key offers three sub-menus: General Readings, Mass Flow and
Energy Flow. The parameters and functions within these three menus are shown below. These
parameters are “live” read-only parameters being supplied continuously from the transmitter.
MENU ITEM NUMBER
General Readings
1
2
3
4
PARAMETER
----% Range
M
I
DESCRIPTION
----Percent of Output (0-100%)
Measured Variable
Current in mA
July 1997
UM340S-1
MENU ITEM NUMBER
4
5
6
Mass Flow
1
2
3
4
Energy Flow
1
2
3
4
Installation, Configuration, and Maintenance
PARAMETER
Static Pressure
Sensor Temp
Char Output
----Mass Flow
Mass Tot x10,000
Mass Total
Steam Units
----Energy Flow
E Tot x10,000
E Total
Steam Flow
DESCRIPTION
Static Pressure in PSIA
Sensor Temperature in °C
Characterizer Output in percent
----Mass Flow in steam units
Upper Mass Flow Total
Lower Mass Flow Total
Steam Units
----Energy Flow in steam units
Upper Energy Flow Total
Lower Energy Flow Total
Steam Units
6.1.3.2 Status
The Status menu provides data about the connected transmitter, as follows:
MENU ITEM NUMBER
1
2
3
PARAMETER
Model Number
Errors
Totalizer Status
DESCRIPTION
Model number and other identification data.
Check for errors and report.
Report on totalizer interrupts.
The Model Number selection provides access to the following parameters:
• 1 Device Tag
• 2 Model Number
• 3 Software Revision
• 4 Sensor Serial Number
• 5 Upper Sensor Limit
• 6 Lower Sensor Limit
View any of these parameters by pressing the corresponding number button on the Model 275 keypad.
The Errors selection will check for and report on any errors which may be present. Error codes are listed
in UM340-1 Section 7.3.3.
The Totalizer Status selection will report on the status of the totalizer, whether it is running, stopped or
interrupted.
6.1.3.3 Totalizer Control
The Totalizer Control menu indicates if the totalizer is running or stopped and allows the user to stop,
start and reset the totalizer.
6.1.3.5 Range XMTR
The Range XMTR menu allows quick access to configuration ranging parameters. Parameters available
through this Quick Access Key option include:
• MV Units
• MV Lo
• MV Hi
• Raw Volumetric Flow Units
July 1997
5
Installation, Configuration, and Maintenance
•
•
•
UM340S-1
Raw Volumetric Flow Lo
Raw Volumetric Flow Hi
Transfer Function
These parameters are all read/write providing a quick method for transmitter calibration without the need
to use the Configuration menus of the Model 275.
6.2.1 SmartDisplay Functionality
# kg BTU kJ /hour
The Model 340S SmartDisplay is designed specifically for saturated steam mass
flow measurement and is shown to the right.
TOT
K
M %
-188.88
pb
The #, kg, BTU or kJ indicator along with the /hour indicator will be lit while the transmitter displays the
mass and energy flow. When the flow rate is above 199.99 units per hour, the K indicator will light and
the value displayed must be multiplied by one thousand to obtain the actual flow rate. For example,
10,000 #/hour would display as 10.00 with the K indicator lit.
When the transmitter is displaying either the mass or energy total the /hour indicator will dim and the
TOTal indicator will light. Each totalizer is a 9-digit totalizer and is displayed using an upper and lower
display. The lower totalizer is displayed first indicating 0 to 9999 counts. The upper totalizer is
displayed next indicating 0 to 199.99 million counts. The M indicator is lit during display of the upper
totalizer indicating the value is millions of counts.
The % indicator lights whenever the transmitter displays the percent output.
The pb indicates whenever one of the magnetic pushbuttons is activated.
The display can indicate any of the following variables: mass flow, energy flow, percent output, mass
total, energy total. The local magnetic pushbuttons can be used to manually step through these variables
as described in UM340-1, Section 6.2.2. The display can also automatically toggle through these
variables, see UM340-1, Section 6.1.1.4 and Appendix A of this document.
7.0 CALIBRATION AND MAINTENANCE
Complete calibration, maintenance, preventative maintenance and troubleshooting techniques are
described in UM340-1, Section 7. The following information supplements Section 7.1.2. in UM340-1.
7.1.2 Zero Trim
In the Model 340S transmitter, position induced errors affect the static pressure sensor as well as the
differential pressure sensor. Two separate zero trim calibrations are provided. Use the Zero Trim routine
to calibrate the differential pressure sensor for position induced errors. Use the SP Zero Trim routine to
calibrate the static pressure sensor for position induced errors. Both routines operate as described in
UM340-1, Section 7.1.2.1.
8.0 CIRCUIT DESCRIPTION
Section 8 in UM340-1 describes the circuit operation of all Model 340 Transmitter-Controllers including
the Model 340S.
9.0 DESIGNATORS AND SPECIFICATIONS
This section contains the model designation table, a list of accessories, functional and performance
specifications, and hazardous area classifications for the Model 340S SteaMeter.
6
July 1997
UM340S-1
Installation, Configuration, and Maintenance
IMPORTANT
Before installing, calibrating, troubleshooting or servicing a transmitter
review this section carefully for applicable specifications and hazardous
are classifications.
9.1 MODEL DESIGNATIONS
Table 9-1 on the following page identifies each model designation entry on a transmitter’s nameplate. The
nameplate also carries other important transmitter information in addition to the model designation:
•
•
•
•
•
•
•
Bill of material number (B/M)
Serial number
Span limits
Maximum working pressure (MAX. WPR)
Factory calibration (FCTY CAL)
Certifications
User-supplied TAG
IMPORTANT
Confirm transmitter model by referring to the transmitter’s model
designation on its nameplate and in Table 9-1 before installing, applying
or removing power, configuring or servicing.
9.2 ACCESSORIES
Listed below are the accessories for a Model 340S. Additional information about many transmitter
accessories can be found in Moore Products Co.’s Measurement & Control Product Catalog.
DESCRIPTION
Three-Valve Manifold, Steel
Three-Valve Manifold, 316 SS
External Transient Suppressor
General Purpose Power Supply, 24 Vdc, 2A
Field Mounted Power Supply, 28 Vdc, 125 mA
Standard Bracket, 2" Pipe Mount Bracket
Universal Bracket, Pipe and Flat Surface Mount
2" Pipe Mount 316SS Bracket
Universal HART Communicator
July 1997
PART NUMBER
16275-252
16275-251
14999-287
15124-1
16055-299
16275-121
20027-166
16275-113
275D9EI5B0100
7
Installation, Configuration, and Maintenance
UM340S-1
TABLE 9-1 Model 340S SteaMeterTM
Basic Model Number
340S Differential Pressure SteaMeterTM
Input Range: Span Limits Min/Max
D 10/450 inH20 (2.5/112.5 kPa)
Output
B 4-20 mAdc with HART Protocol (1)
C 4-20 mAdc with HART Protocol & Integral Transient Suppressor
Process Diaphragm
H Hastelloy-C276
Body Parts
Vent/Drain
Process Connection
Wetted
AA
316SS
End
1/2 NPT (1)
AB
316SS
Side (top)
1/2 NPT
AC
316SS
Side (bottom)
1/2 NPT
AD
316SS
Side (dual)
1/2 NPT
AE
316SS
End
1/4 NPT
AF
316SS
Side (top)
1/4 NPT
AG
316SS
Side (bottom)
1/4 NPT
AH
316SS
Side (dual)
1/4 NPT
Fill Fluid
B Silicone DC200
Output Indicator
5 4 1/2 Digit Digital SmartDisplay™
N Not Required
Standard Options
Y Special Features (2)
N Not Required
Mounting Bracket
1 2" Pipe Mount Bracket with SS Hardware
2 Universal Bracket
3 2" Pipe Mount 316SS Bracket
N Not Required
Housing
1 Aluminum 1/2-14 NPT
2 Aluminum M20 x 1.5 (3)
Hazardous Area Classifications
3 FM/CSA All (1)
M CENELEC EExd (4)
R SAA All and ABS Type Approved
L CENELEC EExia and BASEEFA Type N
N Non-Approved
W FM/CSA All and ABS Type Approved
340SD B
H
AA B
5
N
1
1
3
Sample Model Number
Notes:
(1) Standard for all ranges.
(2) Please describe the modification or provide a quotation reference number.
(3) Not available with FM/CSA Approved units.
(4) CENELEC EExd units are only available with OUTPUT code “B”.
8
July 1997
UM340S-1
Installation, Configuration, and Maintenance
9.3 SPECIFICATIONS
The following specifications are for the Model 340S SteaMeter.
9.3.1 Mechanical Specifications
PARAMETER
Transmitter Dimensions
2" Pipe Bracket, CS or SS
Universal Bracket
Weight, Approximate
2" Pipe Bracket, CS or SS
Universal Bracket
MODEL 340S
Figure 9-1
UM340-1, Figure 4-10
UM340-1, Figure 4-12
7 lb. (4.5 kg)
2 lb. (3.1 kg)
2.5 lb. (3.9 kg)
Electronics Housing .............................................Epoxy Powder Coated, Low Copper Cast Aluminum
NEMA 4X/6P (IP66/68)
Electrical Conduit Entrances................................(2) ½ - 14 NPT, M20 x 1.5 optional
Process Wetted Parts
Diaphragm .....................................................Hastelloy C-276
Wetted ...........................................................316 SS
Gasket............................................................Teflon
Process Connections ............................................(2) ¼ NPTF with vent/drains (½ NPTF with process
adapters provided)
9.3.2 Electrical Specifications
Power Supply Requirements - (contact the factory for EExd [ia] requirements)
Terminal-to-Terminal Compliance Voltage ..+10 Vdc minimum
Terminal-to-Terminal Voltage ......................+42 Vdc maximum
Maximum Load .............................................RL = (50)(VS) - 500 ohms
Local Indication ...................................................Optional 4½ Digit SmartDisplay
Surge Protection (with optional transient suppressor)
Clamping Voltage (either terminal to case)...DC: 68 V maximum
100 kV/µS surge: 70 Vp
1000 kV/µS surge: 120 Vp
Recommended Wire Type ...................................< 5000 ft (1524m): Belden 8641, 24 AWG
> 5000 ft (1524m): Belden 8762, 20 AWG
July 1997
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Installation, Configuration, and Maintenance
UM340S-1
9.3.3 Performance and Functional Specifications
Reference conditions: zero-based spans, ambient temperature 28º C, D/A trim values equal span end
points, silicone fill, hastelloy-C diaphragms, 1 second damping.
Accuracy - includes combined effects of linearity, hysteresis and repeatability.
Range D Analog Output
For URL/Span < 10 (10:1 Turndown) .......... ±0.1% of calibrated span
For URL/Span >10 (10:1-45:1 Turndown)... ±(0.028 + 0.0072 (URL/Span))% of calibrated span
Range D Digital Output....................................... ±0.1% of URL
Ambient Temperature Effect ...............................±(0.075% of URL + 0.075% of calibrated span) per 28º
C (50º F)
Temperature Limits..............................................Sensor Assembly: -40 to 125º C (-40 to 257º F)
Electronics: -40 to 85º C (-40 to 185º F)
Stability ................................................................Zero: ±0.1% of URL for 12 months
Span: no measurable span drift
Humidity ..............................................................0-100% relative humidity, non-condensing
Vibration Effect ...................................................Less than ±0.05% of URL per G for 0-60 Hz in any axis
up to 2 Gs maximum
Power Supply Effect ............................................Less than ±0.005% of output span per volt
EMI/RFI Susceptibility........................................Less than ±0.025% of URL at 30 V/m, 30 mHz to 1 GHz
ESD Susceptibility ...............................................IEC Severity level 4, 15kV
Range and Sensor Limits
RANGE
D
MINIMUM SPAN
10 inH2O (2.49 kPa)
LRL/URL
-450/450 inH2O (-112/112 kPa)
MWP
± 2000 PSI (13.8 MPa)
Zero Elevation and Suppression
Range may be set anywhere between the LRL and URL of the transmitter, as long as the calibrated
span does not exceed the minimum allowable span (see Range and Sensor Limits table). Zero and
span are non-interactive.
Electronic Damping (Digital Filter).....................Adjustable between 0 and 30 seconds
Transmitter Outputs
Analog ...........................................................Two-wire 4-20mA can be set to transmit differential
pressure, mass flow or energy flow
Digital............................................................HART Communications can be used to read static
pressure, mass total and energy total.
Optional Transient Suppressor
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July 1997
UM340S-1
Installation, Configuration, and Maintenance
5.46
(138.68)
Electrical Entrance
1/2-14 NPT or
M20 X 1.5 Tapped
Hole, 2 Places
4.39
(111.5)
1.75 (44.4)
Req'd to
Remove Cap
0.50
(12.7)
Terminal Board,
See Note 3
0.75 (19.1)
3.50
(88.9)
Dia
Vent/
Drain
Plug
6.43
(163.3)
+
5.21
(132.3)
3.60
(91.44)
End Cap, 1/4 NPT
Tapped Hole,
See Note 2
2.13
(54.1)
See Note 2
1.00
(25.4)
Notes:
7/16"-20 Tapped
Hole, 8 Places
1. Dimensions are in inches (millimeters).
Vent/Drain Plug
(Side Vent Options Top, Bottom or Both)
_
TIE
X03061S1
2. Process Connection Blocks, not shown, provide a 1/2 NPT process connection
and can be rotated 180° to give the following connection centers:
2.00 (50.1)
2.13 (54.1)
2.25 (57.2)
3. Terminal Board with isolated TIE terminal shown with enclosure end
cap removed.
FIGURE 9-1 Dimensions, Model 340S SteaMeter
July 1997
11
Installation, Configuration, and Maintenance
UM340S-1
9.3.4 Hazardous Area Classifications
Transmitters are designed for the following classifications. Before installing, applying power to, or
servicing a transmitter, see the transmitter’s nameplate and Table 9-1 for the electrical classification.
Contact Moore Products Co. for the latest approvals and certifications.
FM/CSA Approvals
Intrinsically Safe:
Explosion Proof:
Non-Incendive:
CENELEC Approvals
Intrinsically Safe:
Explosion Proof:
EMC Compatibility:
Class I, Division 1, Groups A, B, C and D
Class II, Division 1, Groups E, F and G
Class III, Division 1
Class I, Division 1, Groups B, C and D
Class II, Division 1, Groups E, F and G
Class III, Division 1
Class I, Division 2, Groups A, B, C and D
EEx ia IIC T6, T5, T4
EEx d [ia] ia IIC, T4
EN50081-1: 1992 and EN50082-2
See Declaration of Conformity in UM340-1, Section 9.3.
BASEEFA Approvals
Non-Incendive:
Ex n IIC T6
SAA Approvals
Intrinsically Safe:
Explosion Proof:
Non-Incendive:
Ex ia IIC T6
Ex d IIB T6
Ex n DIP IIC T6
Precautions for CSA approvals are provided in both English and French in UM340-1, Section 9.3.
12
July 1997
UM340S-1
Appendix
A.0 APPENDIX A - FUNCTION BLOCKS
This section provides a detailed description of each function block in a Model 340S Transmitter. Default
configuration information can be found in Appendix C.
A.1 WRITE PROTECT BLOCK
The write protect parameter, when configured as “on,” blocks all HART commands from writing to the
transmitter’s database. A Model 275 HART Communicator or other HART master will have “read only”
access to the transmitter. For example, if write protect is “on,” the transmitter can not be re-ranged. To
enable write commands, configure the write protect parameter as “off.”
A.2 SENSOR INPUT BLOCK
The Sensor Input Block allows configuration of those parameters which pertain to the pressure sensor.
Sensor Input Block parameters are listed below; a description of each parameter then follows.
Measured Variable Units ...........inH2O, inHg, ftH2O, mmH2O, mmHg PSI, BAR, mBAR, g/sq
cm, kg/sq cm, PA, kPa, Torr, Atm
Measured Variable Range Lo .................................................................-999999 to 999999
Measured Variable Range Hi..................................................................-999999 to 999999
Damping Time Constant ..............................................................................0 to 30 Seconds
Transfer Function................................................................................................ Linear, x1/2
Transfer Function Cutoff ........................................................................................0 to 30%
Zero Dropout...........................................................................................................0 to 30%
Active Input ................................................................................................................... N/A
Measured Variable Units
These are the recognized pressure units within the HART Protocol. Pressure units are selected from a preconfigured list. Other pressure units must be converted to one of these 14 units.
Measured Variable Lo (MV Lo) & Measured Variable Hi (MV Hi)
These two parameters determine the input range of the transmitter. The MV Lo parameter represents the
pressure that will cause the Sensor Input Block to output 0%. The MV Hi parameter represents the
pressure that will cause the Sensor Input Block to output 100%. These two parameters are non-interactive.
Changing one does not effect the other. Furthermore, these parameters can be configured to make the
transmitter forward acting or reverse acting, that is, the MV Hi parameter does not have to be configured
for a higher pressure than the MV Lo parameter. The actual limits for the MV Lo and Hi parameters, as
well as the span, are determined by the particular sensor range at hand. The Upper Sensor Limit (USL)
and Lower Sensor Limit (LSL) are listed in the Quick Access Status/Model Number menu; otherwise,
check the transmitter model number against the model designation list in Section 9 for these limits.
Damping
Use the Damping parameter to configure the time constant for the transmitter. Damping is used to quiet
noisy process signals; however, when configuring this parameter remember that it takes 4-5 time
constants to respond to 99.9% of a step input change. The default damping value is one second.
Transfer Function
July 1997
13
Appendix
UM340S-1
The transmitter has a built in square root (x1/2) extractor for use with orifice plates, venturi tubes and other
primary flow elements. If the transmitter is not being used with one of these flow elements, simply select
a linear transfer function.
Transfer Function Cutoff
The square root transfer function has high gain near 0% input. To prevent small input changes (noise)
from being amplified excessively, a linear segment is used on the low end of the curve. The point at
which this linear segment ends and the actual square root transfer function begins is the Transfer Function
Cutoff. This is user configurable between 0% and 30% of input.
Zero Dropout
The Zero Dropout parameter can be used in conjunction with the Transfer Function Cutoff parameter.
This parameter is a value below which the transmitter’s output will be 0%. This can be used with
extremely noisy process signals where the linear approximation method does produce the desired results.
This is user configurable between 0% and 30% of input.
Active Input
Active Input is not a parameter but a tool to configure the MV Lo and Hi parameters.
If desired, the measured variable range may be configured against a precision pressure source in place of
simply typing the range into the MV Lo and Hi parameters. The Active Input feature will show the “live”
input pressure and the MV Lo and Hi parameters. The user then applies zero and span pressures from a
precision pressure standard and copies those values directly into both the MV Lo and Hi parameters. This
procedure allows the HART Communicator to mimic the operation of the local magnetic switches.
For information on using the Active Input feature or the local magnetic switches, see UM340-1, Section
6.
A.3 CHARACTERIZER
The Characterizer Block is a 14-segment, user-configurable transfer function. This function block can be
used to linearize unusual flow elements. Characterizer Block parameters are listed below, with
descriptions following.
Characterizer ..............................................................................................................On/Off
X0 . . . X14............................................................................................... -10.0% to 110.0%
Y0 . . . Y14............................................................................................... -10.0% to 110.0%
Characterizer
This parameter is used to turn the characterizer on or off.
X0…X14 and Y0…Y14
These parameters specify the values for the 15 x-y coordinates that make up the 14 characterizer
segments. The coordinates are always specified in percent.
A.4 TOTALIZER
The Totalizer Block is used to totalize the mass flow and energy flow. At power-up the totalizer begins
counting. The Quick Access Key menu of the HART Communicator can be used to start, stop, or reset the
totalizer at any time. Totalizer Block parameters are listed below, with a description of each following.
Fullscale Value.................................................................................................. 199999984
14
July 1997
UM340S-1
Appendix
Time Base ................................................................................................................... Hour
Multiplier .................................................................................................... 0.001 to 19999
Zero Dropout................................................................................................... 0.0 to 30.0%
Multiplier
The Mulitplier parameter allows the input signal to the totalizer block to be scaled. The fullscale value is
fixed at 200 million counts for both totalizers. Scaling the input will allow extremely low or high flows to
be totalized more easily. The units for the totalizers are either English (lbm, BTU) or Metric (kg, kJ) per
hour according to the configuration of the Steam Units in the Operator Display Block.
Zero Dropout
The Zero Dropout parameter is used to force the totalizer to stop counting when the measured variable
falls below the configured value. There is no deadband associated with the zero dropout feature. The
Totalizer Block zero dropout feature is independent of the Sensor Input Block zero dropout feature.
A.5 OPERATOR DISPLAY BLOCK
The Operator Display Block is used to configure the operation of the local SmartDisplay. Operator
Display Block parameters are listed below; a description of each parameter then follows.
Raw Flow Units ...................................................................................... 4-Character ASCII
Raw Flow Lo ..................................................................-999999997952 to 999999995904
Raw Flow Hi ...................................................................-999999997952 to 999999995904
Steam Units................................................................................................... English/Metric
Steam Lo .........................................................................-999999997952 to 999999995904
Steam Hi .........................................................................-999999997952 to 999999995904
Local Display ............................................................................. Steam Values or % Output
Auto Toggle ...............................................................................................................Off/On
Toggle Time.....................................................................................................1-30 Seconds
Model 340S Raw Flow Lo, Hi, Units
The raw flow signal is the equivalent mass flow rate in water. This variable is a required intermediate step
in attaining the desired steam mass flow. This variable can NOT be shown on the local display.
To calculate this range use the following equation to calculate both the Raw Flow Lo and Raw Flow Hi
parameters.
MASSwater = MASSsteam/SQRT(vwater/vsteam)
The Raw Flow Units parameter should be ignored. The units for the Raw Flow range will be the same as
that of the Steam Flow range.
vwater and vsteam are the specific volumes of the water and steam under operating conditions. These can be
found in the ASME Steam Tables. Alternatively, a Microsoft Excel 5.0 spreadsheet with formulas to
perform these calculations is available. Use the FAX request form at the back of this manual to request a
copy on diskette or download a free copy from our web site at www.mooreproducts.com.
Model 340S Steam Flow Lo, Hi, Units
July 1997
15
Appendix
UM340S-1
The steam flow units are fixed as lbm (mass) and BTU (energy) for english units, and kg (mass) and kJ
(energy) for metric units. Only english or metric units need be specified. The lo and hi parameters
configure the output range for the mass or energy flow rate when the Output Switch parameter found in
the Output Block is configured as mass or energy flow.
If mass flow is selected as the output of the transmitter, this range should be set as the desired zero and
span mass flow. If energy flow is selected as the output of the transmitter, this range should be set as the
desired zero and span energy flow.
Regardless of which variable is selected as the transmitter output, or the configuration of the steam lo and
hi parameters, both the mass and energy flow rate will always be available at the local SmartDisplay.
Model 340S Local Display Code
The local display can indicate either the steam values or % output as shown in the following table.
LOCAL DISPLAY CODE
Steam Values
% Output
VARIABLES AVAILABLE ON LOCAL DISPLAY
Mass Flow, Energy Flow, Mass Total, Energy Total
% output
A.6 TRANSMITTER ID
The Transmitter ID Block can be used to maintain identification information about the transmitter.
Transmitter ID Block parameters are listed below; a description of each parameter then follows.
Tag .......................................................................................................... 8-Character ASCII
Descriptor.............................................................................................. 16-Character ASCII
Message ................................................................................................ 32-Character ASCII
Date.................................................................................................................. DD/MM/YY
Device Serial Number.................................................................................... 0 to 16777215
Polling Address..............................................................................................................0-15
Tag, Descriptor, and Message
These three parameters are ASCII text and have no bearing on transmitter output. Up to an 8-character
Tag, 16-character Descriptor and 32-character Message may be entered for the transmitter.
Date
The Date parameter uses the international DD/MM/YY format. This date can be selected by the user to
indicate any date or event, such as date of installation or last date of service.
Device Serial Number
The 8-digit Device Serial Number is factory configured to match the serial number on the transmitter
nameplate. It should not be changed.
Polling Address
The Polling Address is used to place the transmitter in either analog or digital mode. A Polling Address of
0 indicates that the transmitter is in analog mode and will output a 4-20 mA current according to its
calibrated range. In analog mode, a single transmitter is connected to a Point-to-Point Network.
16
July 1997
UM340S-1
Appendix
A Polling Address between 1 and 15 indicates the transmitter is in digital mode and will output a constant
4 mA current. In digital mode, up to 15 transmitters can be connected in a Multi-Drop Network using a
single twisted pair cable. For more information on Multi-Drop networks, see Section 4.
A.7 OUTPUT
The Output Block converts the internal digital signal it receives into a 4-20 mA analog output
signal. In digital mode the transmitter output is a constant 4 mA. The Output Block parameter is
listed below and then described.
Failsafe Level...................................................................................... Lo, Hi, or Last Value
Output Switch ............................................................ Raw Flow, Mass Flow, Energy Flow
Failsafe Level
This parameter specifies the value to which the transmitter output will go if an error is detected while the
transmitter is performing its self-test program. This value may be set at Lo (3.85mA), Hi (22.5mA), or
Last Value (transmitter output immediately before entering failsafe mode).
Output Switch
This parameter is used to set the variable which scales the 4-20 mA output. Choices include the raw
volumetric flow (uncompensated), the mass flow or the energy flow.
A.8 STEAM SETTINGS
The Model 340S SteaMeter is specifically used for measuring saturated steam flow. This function block
calculates the mass and energy flow by using a differential pressure and static pressure sensor as well as
built-in steam tables.
The only user-configurable parameters required are the Steam Reference Specific Volume, Steam Quality
and the Thermal Factor.
Reference Volume ( v r ) ............................................................................. 0.000001 to 10.0
Quality (x) .............................................................................................................. 0.0 to 1.0
Thermal Factor (Et) ........................................................................................................in %
Steam Units................................................................................................... English/Metric
Reference Volume, v r
This parameter is the reference specific volume of the steam. The units are lbs/cuft or kg/cum depending
on the configuration of the steam units parameter, english or metric. This should be entered at a reference
temperature of 20°C.
Quality (Dryness Factor), x
The quality or steam dryness factor should be entered: 1.0 is dry, 0.0 is wet.
Thermal Factor, Et
The thermal factor allows for correction of thermal effects associated with the elements in contact with
the steam. The value should be entered as % correction / % input degree C.
Steam Units
July 1997
17
Appendix
UM340S-1
This is a repeat of the steam units found in the Operator Display block. Configure this parameter as
english or metric.
B.0 APPENDIX B - HAZARDOUS AREA INSTALLATION
Barrier recommendations for installation in a hazardous area are listed in UM340-1, Appendix B.
C.0 TRANSMITTER CONFIGURATION DOCUMENTATION
HOW TO USE APPENDIX C
Use this appendix to document a transmitter configuration. The transmitter may be on-site or be a
pending purchase. Make additional copies of this appendix as necessary. Clearly record the needed data
as follows:
On-Site Transmitter Configuration Record
1. Copy transmitter nameplate information onto the simulated nameplate on the next page.
2. Enter Customer Name and P.O. Number information in the box at the bottom of the next page.
3. Record the transmitter’s configuration data in the last column of the table on pages 19 and 20.
Data for Factory Configuration at Time of Purchase
1. Write the transmitter model number and tag on the simulated nameplate on the next page. Other
information is factory supplied at the time of manufacture.
2. Enter Customer Name and P.O. Number in the box at the bottom of the next page.
3. Record the desired configuration data on the following pages.
4. Attach a copy of these pages to your purchase order. Keep a copy for your files.
MOORE
XTC TM
TRANSMITTER-CONTROLLER
MODEL
B/M
SERIAL#
SPAN LIMITS
MWP
FCTRY CAL
TAG
Approvals and Certifications Area
X03068S0
18
July 1997
UM340S-1
PARAMETER
Write Protect
Sensor Input Block
Measured Variable Units
Measured Variable Range
Lo
Measured Variable Range
Hi
Damping Time Constant
Transfer Function
Transfer Function Cutoff
Zero Dropout
Active Input
Totalizer Block
Fullscale Value
Time Base
Multiplier
Zero Dropout
Characterizer Block
Characterizer
X0
Y0
X1
Y1
X2
Y2
X3
Y3
X4
Y4
X5
Y5
X6
Y6
X7
Y7
X8
Y8
X9
Y9
X10
Y10
X11
July 1997
Appendix
RANGE OF VALUES
DEFAULT
VALUE
Disable
----inH2O
Disable, Enable
----inH2O, inHg, ftH2O, mmH2O,
mmHg, PSI, BAR, mBAR,
g/sq cm, kg/sq cm, PA, kPa,
Torr, ATM
-999999 to 999999
0
-999999 to 999999
100
0 to 30 seconds
Linear, Square Root
0 to 30%
0 to 30%
1
Linear
4%
0%
----199999984
Hour
0.001 to 19999
0-30%
----Off, On
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
----199999984
Hour
1.0
0.5%
----Off
0.00%
0.00%
7.14
7.14
14.29
14.29
21.43
21.43
28.57
28.57
35.71
35.71
42.86
42.86
50.00
50.00
57.14
57.14
64.29
64.29
71.43
71.43
78.57
DESIRED
VALUE
-----
Non-Configurable
----Non-Configurable
Non-Configurable
-----
19
Appendix
PARAMETER
Y11
X12
Y12
X13
Y13
X14
Y14
Operator Display Block
Raw Flow Units
Raw Flow Range Lo
Raw Flow Range Hi
Steam Units
Steam Flow Range Lo
Steam Flow Range Hi
Local Display Code
Auto Toggle
Toggle Time
Transmitter ID
Tag
Descriptor
Message
UM340S-1
RANGE OF VALUES
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
-10.0 to 110.0%
----4-Character ASCII
-999999997952 to
999999995904
-999999997952 to
999999995904
English/Metric
-999999997952 to
999999995904
-999999997952 to
999999995904
Steam Units, % Output
Off, On
1-30 Seconds
----8-Character ASCII
16-Character ASCII
32-Character ASCII
Date
Device Serial Number
(8-digit)
Polling Address
Output Block
Failsafe
Output Switch
Steam Settings
Reference Volume
Quality (Dryness Factor)
Thermal Factor
Steam Units
0 to16777215
0-15
----Lo, Hi, Last Value
Raw Flow, Mass Flow, Energy
Flow
----0.00001 to 10.0
0.7 to 1.0
English/Metric
DEFAULT
VALUE
78.57
85.71
85.71
92.86
92.86
100.00
100.00
----PRCT
0
DESIRED
VALUE
-----
100
English
0
100,000
Steam Units
Off
5
----FT
XTC Transmitter
Moore Products
Co.
[Date transmitter
manufactured]
[Device S/N on
nameplate]
0
----Last Value
Mass Flow
----1.0
1.0
0.0019%
English
-----
Do not change.
-----
-----
D.0 ELEVATION AND SUPPRESSION CORRECTIONS
This section in UM340-1 does not apply to the Model 340S SteaMeter.
20
July 1997