™
Model 704
704 software v1.0
Installation and Operating Manual
Guided Wave Radar
Level Transmitter
Read this Manual Before Installing
This manual provides information on the Horizon transmitter. It is important that all instructions are read carefully and followed in sequence. The QuickStart
Installation instructions are a brief guide to the sequence
of steps for experienced technicians to follow when
installing the equipment. Detailed instructions are
included in the Complete 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
The Horizon system is designed for use in Category II,
Pollution Degree 2 installations. Follow all standard
industry procedures for servicing electrical and computer
equipment when working with or around high voltage.
Always shut off the power supply before touching any
components. Although high voltage is not present in this
system, it may be present in other systems.
Electrical components are sensitive to electrostatic discharge. To prevent equipment damage, observe safety
procedures when working with electrostatic sensitive
components.
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received,
including interference that may cause undesired operation.
WARNING! Explosion hazard. Do not connect or disconnect transmitters rated Explosion-proof or Nonincendive unless power has been switched off and/or the
area is known to be non-hazardous
Low Voltage Directive
For use in Installations Category II, Pollution Degree 2.
If equipment is used in a manner not specified by the
manufacturer, protection provided by equipment may be
impaired.
Notice of Copyright and Limitations
Copyright © 2008 Magnetrol International
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/STI 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/STI will repair or replace the control at no
cost to the purchaser (or owner) other than transportation.
Magnetrol/STI 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/STI
products.
Quality Assurance
The quality assurance system in place at Magnetrol/STI
guarantees the highest level of quality throughout the
company. Magnetrol is committed to providing full
customer satisfaction both in quality products and
quality service.
Magnetrol’s 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.
Horizon Guided Wave Radar Transmitter
Table of Contents
1.0 QuickStart Installation
1.1 Getting Started..........................................................1
1.1.1 Equipment and Tools .....................................1
1.1.2 Configuration Information.............................2
1.2 QuickStart Mounting................................................2
1.2.1 Probe..............................................................2
1.2.2 Transmitter.....................................................2
1.3 QuickStart Wiring ....................................................2
1.4 QuickStart Configuration .........................................3
1.4.1 Model 704 .....................................................3
2.0 Complete Installation
2.1 Unpacking ................................................................4
2.2 Electrostatic Discharge (ESD) Handling Procedure...5
2.3 Before You Begin.......................................................5
2.3.1 Site Preparation ..............................................5
2.3.2 Equipment and Tools .....................................5
2.3.3 Operational Considerations............................6
2.4 Mounting..................................................................6
2.4.1 Installing a Coaxial Probe...............................6
2.4.2 Installing a Twin Rod Probe ...........................7
2.4.3 Installing the Transmitter ...............................8
2.5 Wiring ......................................................................8
2.5.1 General Purpose or Non-incendive.................8
2.5.2 Intrinsically Safe .............................................9
2.5.3 Explosion Proof............................................10
2.6 Configuring the Model 704 Transmitter .................11
2.6.1 Operating Parameters ...................................11
2.6.2 Setting Up for Bench Configuration ............11
2.6.3 Transmitter Display and Keypad ..................11
2.6.4 Menu: Step By Step Procedure .....................12
2.6.4.1 Model 704 Transmitter .........................13
2.6.5 Offset Description........................................14
2.7 Configuration Using HART® ..................................15
2.7.1 Connections .................................................15
2.7.2 Display Menu...............................................15
2.7.3 Model 704 1.x HART Menu .......................16
2.7.4 HART Revision Table (Model 704) .............17
3.0 Reference Information
3.1 Description .............................................................17
3.2 Theory of Operation...............................................17
3.2.1 Micropower Impulse Radar ..........................17
3.2.2 Time Domain Reflectometry (TDR)............18
3.2.3 Equivalent Time Sampling (ETS).................18
3.3 Troubleshooting ......................................................18
3.3.1 Model 704 System Problems ........................19
3.3.2 Model 704 Error Messages ...........................20
3.3.3 Application Concerns...................................20
3.4 Agency Approvals....................................................21
3.4.1 Agency Specifications–
Intrinsically Safe Installation (FM/CSA) ......22
3.4.2 Agency Specifications–
Intrinsically Safe Installation (ATEX) ...........22
3.5 Specifications ..........................................................23
3.5.1 Functional ....................................................23
3.5.2 Performance .................................................24
3.5.3 Materials of Construction ............................25
3.5.4 Process Conditions .......................................25
3.5.5 Physical ........................................................26
3.6 Replacement Parts...................................................27
3.7 Model Numbers......................................................28
3.7.1 Transmitter...................................................28
3.7.2 Probe............................................................29
Model 704 Configuration Data Sheet .................................31
1.0
QuickStart Installation
The QuickStart Installation procedures provide the key steps for
mounting, wiring, and configuring the Horizon level transmitter. These procedures are intended for experienced installers of
electronic level measurement instruments. Refer to Complete
Installation, Section 2.0 for detailed installation instructions.
WARNING! Guided Wave Radar probes should be installed so the maximum overfill level is a minimum of 6" (150 mm) below the
process connection. This may include utilizing a nozzle or
spool piece to raise the probe. Consult factory to ensure
proper installation.
1.1
Getting Started
Have the proper equipment, tools, and information available
before beginning the QuickStart Installation procedures.
1.1.1 Equipment and Tools
• Open-end wrenches or adjustable wrench to fit the
process connection size and type. Coaxial probe 11⁄2"
(38 mm), twin rod probes 17⁄8" (47 mm).
• Flat-blade screwdriver
• Digital multimeter or digital volt/ammeter
• 24 VDC power supply, 23 mA minimum
1.1.2 Configuration Information
Some key information is needed to configure the
Model 704 Horizon transmitter. Complete the following
operating parameters table before beginning configuration.
Display
Units
Question
What units of measurement will be
used? (inches or centimeters)
_____________
What is the distance from the probe
process connection to the tank bottom?
_____________
What probe model is listed on the
model information?
(first four digits of probe model number)
_____________
Probe
Length
What probe length is listed on the
model information?
_____________
Offset
What is the distance from the probe
tip to the desired 0% level point?
_____________
Probe
Model
Answer
Dielectric What is the dielectric constant of the
(sensitivity) process medium?
_____________
Set
4.0 mA
What is the 0% reference point for the
4.0 mA value?
_____________
Set
20.0 mA
What is the 100% reference point for
the 20.0 mA value?
_____________
(Top 4" (100 mm) of 7XB Twin Rod probe is inactive)
1
57-603 Horizon Guided Wave Radar Transmitter
1.2
QuickStart Mounting
NOTE: Confirm the configuration style and process connection
size/type of the Horizon transmitter. Ensure it matches the
requirements of the installation before continuing with the
QuickStart installation.
{
1.2.1 Probe
x Carefully place the probe into the vessel. Align the probe
process connection with the threaded or flanged mounting
on the vessel.
y Tighten the hex nut of the probe process connection or
flange bolts.
z
x
y
NOTE: If the transmitter is to be installed at a later time, do not remove
the protective cap from the probe. Do not use sealing compound or TFE tape on probe connection to transmitter. This
connection is sealed using a Viton® O-ring.
1.2.2 Transmitter
z Remove the protective plastic caps from the top of the
probe and at the bottom of the transmitter and store for
future use. Make sure the high frequency connector (female)
is clean and dry. Clean with isopropyl alcohol and cotton
swabs if necessary.
{ Place the transmitter on the probe. Hand-tighten the
connection securely.
1.3
QuickStart 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: Ensure that the electrical wiring to the Horizon transmitter is
complete and in compliance with all regulations and codes.
NOTE: Do not apply more than 10 ft. lbs. to conduit entries on the
Valox housing.
Model 704
57-603 Horizon Guided Wave Radar Transmitter
1. Remove the cover of the transmitter.
2. Gripping the display module by the flats, remove the module from the assembly as shown on the next page.
3. Attach a conduit fitting and mount the conduit plug in the
spare opening. Pull the power supply wires through the conduit fitting.
4. Connect shield to an earth ground at power supply and at
the transmitter.
5. Connect an earth ground to the green ground screw.
2
6. Connect the positive supply wire to the (+) terminal and the
negative supply wire to the (-) terminal. For Explosion
Proof Installations, refer to Wiring, Section 2.5.3.
7. Carefully reconnect the display module to the 20-pin
connector.
8. Replace the cover of the transmitter.
Grip flats
and lift
1.4
QuickStart Configuration
1.4.1 Model 704
Down
Up
6.
7.
3
Á
Á
5.
Á
4.
Á
Enter
Á
2.
3.
Á
1.
The Model 704 Horizon transmitter is configured with
factory default values but should be reconfigured in the shop
(disregard fault message due to unattached probe). The
minimum configuration instructions required in the field
are shown on the next page. Use the information from the
operating parameters table in Section 1.1.2 before beginning configuration.
Apply power to the transmitter.
The display changes approximately every 2 seconds to show
one of the three measured values: Level, %Output, and
Loop current.
Remove the cover of the transmitter.
Use the Up or Down Arrow keys (
) to move from one
step of the configuration program to the next step.
To change a particular parameter, press the
Units!
Enter Arrow key ( ). The last character in
xxx
the first line of the display changes to an
exclamation point (!).
Use the Up or Down Arrow keys (
) to increase or
decrease the value in the display or to scroll through the
choices.
Press the Enter Arrow key( ) to accept a value, then move
to the next step of the configuration program.
After entering the last value, allow 5 seconds before
removing power from the transmitter.
57-603 Horizon Guided Wave Radar Transmitter
The following configuration entries are the minimum
required for configuration.
1
In or Cm
8
20 mA
2 Probe Model
3
Probe Length
6
Dielectric
of Medium
7
4 mA Level
(0%-point)
Offset
4
Note: A small transition zone (0-6")
may exist at the top and bottom
of the probe. See Specifications,
Section 3.5.
Units
xxx
Select the Units of measurement for the level readout
(cm or inches).
Prb Model
(select)
Probe Ln
xxx.x
Offset
xxx.x
Enter the Offset value: the distance from the probe end to
the desired 0% level point. (The unit is shipped from the
factory with offset=0; i.e., all measurements are referenced
to the bottom of the probe). Refer to Offset Description,
Section 2.7.5.
Lvl Trim
xxx.x
Enter a distance correction to account for mounting
variations (this step should be performed after installation).
Dielctrc
(select)
Enter the Dielectric range for the material to be measured
(only applicable for coaxial and twin rod probes 7XA & 7XB).
Set 4mA
xxx.x
Enter the minimum level value (0% point) for the 4 mA
point.
2.0
Set 20mA
xxx.x
Select the Probe Model to be used
7xA-x, 7xB-x, 7xF-P
Enter the exact Probe Length as indicated on the probe
nameplate.
Enter the maximum level value (100% point) for the 20 mA
point.
Complete Installation
This section provides detailed procedures for properly
installing and configuring the Horizon Guided Wave Radar
Level Transmitter.
2.1
Unpacking
Unpack the instrument carefully. Make sure all components
have been removed from the packing material. Verify all
contents correspond to the packing slip. Report any discrepancies to the factory.
Before proceeding with the installation, do the following:
• Inspect all components for damage. Report any damage
to the carrier within 24 hours.
• Make sure the nameplate model number on the probe
and transmitter correspond with the packing slip and
purchase order.
• Record the model and serial numbers for future reference
when ordering parts.
Model Number
Serial Number
57-603 Horizon Guided Wave Radar Transmitter
4
2.2
Electrostatic Discharge (ESD)
Handling Procedure
Magnetrol’s electronic instruments are manufactured to the
highest quality standards. These instruments use electronic
components that 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
anti-static bag is not available, wrap the 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 recommended.
• Handle circuit boards only by the edges. Do not touch
components or connector pins.
• Make sure that all electrical connections are completely
secure and none are partial or floating. Ground all equipment to a good, earth ground.
2.3
Before You Begin
2.3.1 Site Preparation
Each Horizon transmitter is built to match the specific
physical specifications of the required installation. Make sure
the probe connection is correct for the threaded or flanged
mounting on the vessel or tank where the transmitter will
be placed. Refer to Mounting, Section 2.4.
Make sure that the wiring between the power supply and
Horizon transmitter are complete and correct for the type of
installation. Refer to Specifications, Section 3.5.
When installing the Horizon transmitter in a general purpose
or hazardous area, all local, state, and federal regulations and
guidelines must be observed. Refer to Wiring, Section 2.5.
2.3.2 Equipment and Tools
No special equipment or tools are required to install the
Horizon transmitter. The following items are recommended:
• Open-end wrenches or adjustable wrench to fit the
process connection size and type; 11⁄2" (38 mm) for a
coaxial probe, 17⁄8" (47 mm) for twin rod probes.
• Flat-blade screwdriver
• Digital multimeter or digital volt/ammeter
• 24 VDC power supply, 23 mA minimum
5
57-603 Horizon Guided Wave Radar Transmitter
2.3.3 Operational Considerations
Operating specifications vary based on Probe model
number. Refer to Specifications, Section 3.5.
2.4
Mounting
The Horizon transmitter can be mounted to a tank using a
variety of process connections. Generally either a threaded
or flanged connection is used. For information about the
sizes and types of connections available, refer to Probe Model
Numbers, Section 3.7.2.
NOTE: Do not place insulating material around any part of the Horizon
transmitter including the probe flange as this may cause excessive heat buildup.
WARNING! Guided Wave Radar probes should be installed so the
maximum overfill level is a minimum of 6" (150 mm) below
the process connection. This may include utilizing a
nozzle or spool piece to raise the probe. Consult factory
to ensure proper installation.
WARNING! Do not disassemble probe when it is in service and/or
under pressure.
2.4.1 Installing a Coaxial Probe
x
y
z
{
Before installing, make sure the:
• Probe has adequate room for installation and has unobstructed entry to the bottom of the vessel. Refer to
Physical Specifications, Section 3.5.5.
• Process temperature, pressure, dielectric, and viscosity are
within the probe specifications for the installation.
Refer to Specifications, Section 3.5.
To install a coaxial probe:
x Make sure the process connection is at least 3⁄4" NPT or a
flanged mounting.
y Carefully place the probe into the vessel. Align the gasket
on flanged installations.
z Align the probe process connection with the threaded or
flanged mounting on the vessel.
{ For threaded connections, tighten the hex nut of the probe
process connection. For flanged connections, tighten flange
bolts.
NOTE: If the transmitter is to be installed at a later time, do not remove
the protective cap from the probe. Do not use sealing compound or TFE tape on probe connection to transmitter. This
connection is sealed using a Viton® O-ring.
57-603 Horizon Guided Wave Radar Transmitter
6
2.4.2 Installing a Twin Rod Probe
Before installing, make sure the:
• Probe has adequate headroom for installation and has
unobstructed entry to the bottom of the vessel.
• Process temperature, pressure, dielectric, viscosity, and
media buildup are within the probe specifications for the
installation. Refer to Specifications, Section 3.5.
Nozzles:
The 7XB Twin Rod probe may be susceptible to objects
that are in close proximity. The following rules should be
followed for proper application:
• Nozzles should be 3" (80 mm) diameter or larger.
• For nozzles < 3" (80 mm) diameter, the bottom of the
inactive section of the probe should be at least flush with
the bottom of the nozzle or extend into the vessel.
• 7XB Twin rod probe should be installed such that the
active rod is > 1" (25 mm) from metallic objects such as
pipes, ladders, etc. (a bare tank wall parallel to the probe
is acceptable).
x
Inactive
section
z
Active
probe rod
{
Inactive
probe rod
y
}
7
|
x Make sure the process connection is at least 2" NPT or a
flanged mounting.
y Make sure that there is at least 1" (25 mm) spacing between
the active probe rod and any part of the tank (walls, stillwell, pipes, support beams, mixer blades, etc.). Minimum
stillwell diameter for a twin rod probe is 3" (80 mm).
z Carefully place the probe into the vessel. Align the gasket
on flanged installations.
{ Align the probe process connection with the threaded or
flanged mounting on the vessel.
| For threaded connections, tighten the hex nut of the probe
process connection. For flanged connections, tighten flange
bolts.
} Probe can be stabilized by attaching the inactive probe rod
to vessel.
NOTE: If the transmitter is to be installed at a later time, do not remove
the protective cap from the probe. Do not use sealing compound or TFE tape on probe connection to transmitter. This
connection is sealed using a Viton® O-ring.
57-603 Horizon Guided Wave Radar Transmitter
2.4.3 Installing the Transmitter
The Horizon transmitter can only be ordered for installation
as an integral configuration.
NOTE: Model 704 transmitters may not show an error and indicate a
LEVEL value > 0 when disconnected from probe.
x Remove the protective plastic caps from the top of the
probe and bottom of the transmitter. Put the caps in a safe
place in the event transmitter has to be removed later.
y Place the transmitter on the probe. Be careful not to bend
or dirty the gold high frequency (male) connector.
z Hand-tighten the connection securely.
y
x
z
2.5
Wiring
Caution: The Horizon transmitter operates at voltages of 12-28 VDC.
Higher voltage will damage the transmitter.
Wiring between the power supply and the Horizon transmitter should be made using 18-22 AWG shielded twisted
pair instrument cable. Within the transmitter enclosure,
connections are made to the terminal strip and the ground
connections. The instructions for wiring the Horizon transmitter depend on the application:
• General Purpose or Non-Incendive (Cl I, Div. 2)
• Intrinsically Safe
• Explosion Proof
WARNING! Explosion hazard. Do not disconnect equipment unless
power has been switched off or the area is known to be
non-hazardous.
NOTE: Do not apply more than 10 ft. lbs. to conduit entries on the
Valox housing.
2.5.1 General Purpose or Non-Incendive (Cl I, Div. 2)
Model 704
57-603 Horizon Guided Wave Radar Transmitter
• A general purpose installation does not have flammable
media present.
• Areas rated Non-Incendive (Cl I, Div. 2) have flammable
media present only under abnormal conditions (no special electrical connections are required).
• If flammable media is contained in the vessel, the transmitter must be installed per Cl I, Div. 1 standards of area
classification.
8
Grip flats
and lift
To install General Purpose or Non-Incendive wiring:
1. Remove the cover of the transmitter. Install the conduit
plug in the unused opening.
2. Gripping the display module by the flats, remove the module from the assembly. See drawing at left.
3. Install a conduit fitting and pull the supply wires through.
4. Connect shield to an earth ground at power supply and at
the transmitter.
5. Connect an earth ground wire to the green ground screw.
6. Connect the positive supply wire to the (+) terminal and
the negative supply wire to the (-) terminal.
7. Carefully reconnect the display module to the 20-pin
connector.
8. Replace the cover of the transmitter.
2.5.2 Intrinsically Safe
An intrinsically safe (IS) installation potentially has flammable media present. An approved IS barrier must be
installed in the non-hazardous (safe) area. Refer to Agency
Drawing – Intrinsically Safe Installation, Section 3.4.1.
To install Intrinsically Safe wiring:
1. Make sure the IS barrier is properly installed in the safe area
(refer to local plant or facility procedures). Complete the
wiring from the barrier to the Horizon transmitter. Refer to
Agency Specifications – Intrinsically Safe Installations, Section
3.4.1.
2. Gripping the display module by the flats, remove the
module from the assembly. See drawing at left.
3. Remove the cover of the transmitter. Install the conduit
plug in the unused opening.
4. Install a conduit fitting and pull the supply wires through.
5. Connect shield to an earth ground at power supply and at
the transmitter.
6. Connect an earth ground wire to the nearest green ground
screw.
7. Connect the positive supply wire to the (+) terminal and
the negative supply wire to the (-) terminal.
8. Carefully reconnect the display module to the 20-pin
connector.
9. Replace the cover of the transmitter.
9
57-603 Horizon Guided Wave Radar Transmitter
2.5.3 Explosion Proof
Explosion Proof (XP) is a method of designing equipment
for installation in hazardous areas. A hazardous location is
an area in which flammable gases or vapors are or may be
present in quantities sufficient to produce explosive or
ignitable mixtures. The wiring for the transmitter must be
contained in explosion proof conduit extending into the
safe area. Due to the specialized design of the Horizon
transmitter, no explosion proof conduit fitting (EY seal) is
required within 18" of the transmitter. An explosion proof
conduit fitting (EY seal) is required between the hazardous
and safe areas. Refer to Agency Specifications, Section 3.4.
Model 704
Grip flats
and lift
57-603 Horizon Guided Wave Radar Transmitter
To install Explosion Proof wiring:
1. Install explosion proof conduit from the safe area to the
conduit connection of the Horizon transmitter (refer to
local plant or facility procedures).
2. Gripping the display module by the flats, remove the
module from the assembly. See drawing at left.
3. Remove the cover of the transmitter.
4. Connect shield to an earth ground at the power supply and
at the transmitter.
5. Connect the positive supply wire to the (+) terminal and the
negative supply wire to the (-) terminal.
6. Carefully reconnect the display module to the 20-pin
connector.
7. Replace the cover of the transmitter before applying power.
10
2.6
Configuring the Model 704 Transmitter
The Horizon Model 704 transmitter comes configured
from the factory but can easily be reconfigured in the shop
(an error message may be displayed due to unattached
probe). Bench configuration provides a convenient and
efficient way to set up the transmitter before going to the
tank site to complete the installation.
Before configuring the Model 704 transmitter, collect the
operating parameters information (refer to Section 1.1.2).
Apply power to the transmitter on the bench and follow
through the step-by-step procedures for the menu-driven
transmitter display. Information on configuring the transmitter using a HART communicator is in Configuration
Using HART, Section 2.7.
Power Supply
24 VDC
Test Current
Meter
2.6.1 Operating Parameters
Model 704
Some key information is needed to calibrate the Horizon
transmitter. Complete the configuration information table
in Configuration Information, Section 1.1.2.
2.6.2 Setting Up for Bench Configuration
The Horizon Model 704 transmitter can be configured at
a test bench by connecting a 24 VDC power supply directly
to the transmitter terminals as shown in the accompanying
diagram. An optional digital multimeter is shown if current
measurements are desired.
1. When using a HART communicator for configuration, a
minimum 250 Ω line load resistance is required. See the
HART communicator manual for more information.
2. The transmitter can be configured without the probe.
Disregard the error message due to the unattached probe
(the Horizon transmitter may not show an error and indicate a LEVEL value > 0 when disconnected from probe).
3. After entering the last value, allow 5 seconds before removing power from the transmitter. This allows the transmitter
to store values.
2.6.3 Transmitter Display and Keypad
The Horizon Model 704 transmitter has an optional liquid
crystal display (LCD) capable of showing two lines of
8 characters each. Transmitter measurements and configuration menu screens are shown on the LCD.
Enter
Down
Up
11
The transmitter default display is the measurement screen.
It cycles every 5 seconds to display LEVEL, %OUTPUT,
and LOOP information. The transmitter defaults to this
display after 5 minutes elapses with no keystrokes.
57-603 Horizon Guided Wave Radar Transmitter
The keypad has three arrows used to scroll through the
displays and to calibrate the transmitter. The Up and
Down Arrow keys (
) and the Enter key ( ).
Á
Á
Á
Function in
Display Mode
Arrows
Á
Enter
Á
Up and Down Moves forward and backward
in the configuration program
from one display to another.
Function in
Configuration Mode
Increases or decreases the
value displayed or moves to
another choice.
Note: Hold arrow key for
rapid scrolling.
Enters the configuration mode Accepts a value
(noted by an exclamation point
as the last character in the top
display line).
Á
2.6.4 Menu: Step By Step Procedure
The following table provides a complete explanation of
the software menus displayed by the Model 704 transmitter.
Use this table as a step-by-step guide to configure the
transmitter.
The first column presents the menus shown on the transmitter display. The displays are in the order they would
appear if the arrow keys were used to scroll through the
menu. The numbers are not shown on the display. They
are only provided as a reference.
The second column provides the actions to take when
configuring the transmitter. Additional information or an
explanation of an action is given in the third column.
57-603 Horizon Guided Wave Radar Transmitter
12
2.6.4.1 Model 704 Transmitter (probes: Coaxial, Twin Rod, Overfill, Single Rod)
Display
13
Action
Comment
1
Level
%Output
Loop
Transmitter Display
Transmitter default display. Level, % Output, and Loop values
cycle every 5 seconds.
2
Level
xxx.x cm
Transmitter Display
Transmitter displays Level measurement in cm or in.
3
%Output
xx.x%
Transmitter Display
Transmitter displays % Output measurement as derived from the
20 mA span.
4
Loop
xx.xx mA
Transmitter Display
Transmitter displays Loop value (mA).
5
Units
(select)
Select units for level
measurement readout
cm or inches
6
PrbModel
(select)
Select the type of probe used
Select from dual element probes 7xA-x, 7xB-x or 7xR.
7
Probe Ln
xxx.x
Enter the exact length of
probe
Probe length is printed on the nameplate and order information.
It is the last three digits of the probe model number.
8
Offset
xxx.x
Enter the offset value
Offset is the distance from the probe tip to the desired 0% level
point (-10 to 192" (-25 to 488 cm)). See Section 2.7.5.
9
Lvl Trim
xxx.x
Enter the Level Trim Value
Level Trim may be necessary to account for installation variances
10
Dielctrc
(select)
Enter the dielectric range
value of the media
1.7–10; 10–100
(for dual element probes)
11
Set 4mA
xxx.x
Enter the level value for the
4 mA point
A small transition zone (0-6") may exist at the top/bottom of
the probe. Refer to Functional Specifications Probe, Section 3.5.2.
12
Set 20mA
xxx.x
Enter the level value for the
20 mA point
A small transition zone (0-6") may exist at the top/bottom of
the probe. Top 4" (100 mm) of 7XB Twin Rod Probe is inactive.
Refer to Functional Specifications Probe, Section 3.5.1.
13
Damping
xx sec
Enter the damping factor
A Damping factor (0-10 seconds) may be added to smooth a
noisy display and/or output due to turbulence.
14
Fault
(select)
Enter the fault value
Select 3.6 mA, 22 mA or HOLD (last value). 3.6 mA is not valid if
unit includes both digital display and HART.
15
Deadband
xx.x
Enter the deadband value
Deadband may have to be adjusted for installation variances
16
Poll Adr
xx
Enter HART ID number
Select a HART poll address (0-15). Enter 0 for a single transmitter
installation.
17
Trim 4
xxxx
Fine tune the 4 mA point
Attach a mA meter to the output. If the output does not equal
4.0 mA, adjust the value on the display until meter reads 4.00 mA.
18
Trim 20
xxxx
Fine tune the 20 mA point
Attach a mA meter to the output. If the output does not equal
20.0 mA, adjust the value on the display until meter reads 20.00 mA.
19
Loop Tst
xx.x mA
Enter a mA Output value
Set mA Output to any given value to perform loop test.
20
Fid Tick
None, do not adjust
Diagnostic, factory setting
21
Conv Fct
xx.xxx
None, do not adjust
Diagnostic, factory setting
57-603 Horizon Guided Wave Radar Transmitter
Display
Action
Comment
22
Scl Offs
xx.x
None, do not adjust
Diagnostic, factory setting
23
# Ticks
xxxx
None, do not adjust
Diagnostic, factory setting
24
Threshld
(select)
Select the type of threshold
Unit default CFD. Only select Fixed in application with low
dielectric material over higher dielectric material and unit is
reading incorrect level. Example: Oil over water. Select
Dielectric Range of upper material. Adjustment of Lvl Trim
may be necessary when threshold is changed.
25
Model 704
Ver xx.xx
None, do not adjust
Diagnostic, factory setting (Ver refers to software version)
2.6.5 Offset Description
Units
in
Prb Model
7xA-x
20 mA
Probe Ln
72 in
Offset
0.0 in
60"
Dielctrc
10-100
4 mA
24"
Set 4mA
24.0 in
Set 20mA
60.0 in
10"
Example 1
Units
in
Prb Model
7xA-x
Probe Ln
72 in
20 mA
Offset
10 in
Dielctrc
10-100
60"
4 mA
Set 4mA
24.0 in
24"
10"
Set 20mA
60.0 in
Example 2
57-603 Horizon Guided Wave Radar Transmitter
The parameter referred to as OFFSET in the Horizon menu
is the distance from the bottom of the probe to the desired
0% level point. The Horizon transmitter is shipped from
the factory with OFFSET set to 0. With this configuration,
all measurements are referenced from the bottom of the
probe. See Example 1.
Example 1 (Offset=0 as shipped from factory):
Application calls for a 72-inch NPT coaxial probe in
water with the bottom of the probe 10 inches above the
bottom of the tank. The user wants the 4 mA point at
24 inches and the 20 mA point at 60 inches as referenced
from the bottom of the probe.
In applications in which it is desired to reference all measurements from the bottom of the vessel, the value of
OFFSET should be changed to the distance between the
bottom of the probe and the bottom of the vessel as shown
in Example 2.
Example 2:
Application calls for a 72 inch NPT coaxial probe in
water with the bottom of the probe 10 inches above the
bottom of the tank. The user wants the 4 mA point at
24 inches and the 20 mA point at 60 inches as referenced
from the bottom of the tank.
When the Horizon transmitter is mounted in a chamber/bridle, it is usually desirable to configure the unit with
the 4 mA (0%) point at the lower process connection and
the 20 mA (100%) point at the upper process connection.
In other words, the span is the center-to-center dimension.
In this case a negative OFFSET needs to be entered. In
doing so, all measurements are then referenced at a point up
on the probe as shown in Example 3.
14
2.6.5 Offset Description (cont.)
Units
in
Example 3:
Application calls for a 48-inch coaxial flanged probe
measuring water in a chamber with the bottom of the
probe 6 inches below the lower process connection. The
user wants the 4 mA point to be 0 inches at the bottom
process connection and the 20 mA point to be 30 inches
at the top process connection.
Prb Model
7xA-x
20 mA
Probe Ln
48 in
Offset
-6.0 in
30"
6"
Dielctrc
10-100
Set 4mA
0 in
4 mA
2.7
Set 20mA
30.0 in
Configuration Using HART
A HART (Highway Addressable Remote Transducer)
remote unit, such as a HART communicator, can be used to
provide a communication link to the Horizon Model 704
transmitter. When connected to the control loop, the same
system measurement readings shown on the transmitter are
shown on the communicator. In addition, the communicator can be used to configure the transmitter.
Example 3
The HART communicator may need to be updated to
include the Horizon software (Device Descriptors). Contact
your local HART Service Center for additional information.
2.7.1 Connections
A HART communicator can be operated from a remote
location by connecting it to a remote junction or by connecting it directly to the terminal block in the electronics
housing of the Horizon transmitter.
HART uses the Bell 202 frequency shift key technique of
high-frequency digital signals. It operates on the 4-20 mA
loop and requires 250 Ω load resistance. A typical connection between a communicator and the Horizon transmitter
is illustrated.
Junction
R L > 250 Ω
Control
Room
Display
Power
Supply
Current
Meter
15
2.7.2 Display Menu
-
+
A typical communicator display is an 8 line × 21 character
LCD. When connected, the top line of each menu displays
the model (Model 704) and its tag number or address.
Usually the bottom line of each menu is reserved for software-defined function keys (F1-F4). For detailed operating
information, refer to the instruction manual provided with
the HART communicator.
The Horizon transmitter online menu tree is shown in the
following illustration. Open the menu by pressing the
alphanumeric key 1, Device Setup, to display the second
level menu.
57-603 Horizon Guided Wave Radar Transmitter
2.7.3 Model 704 1.x HART Menu
2.7.3.1 Model 704 1.x
1
2
3
4
Device Setup
Lvl
% Out
Loop
1 Calibration
1
2
3
4
5
6
7
8
9
10
11
12
13
2 Basic Setup
3 Advanced Setup
4 Diagnostics
5 Review
1
2
3
4
5
6
Tag
Descriptor
Date
Message
Final Asmbly Num
Poll address
1
2
3
4
5
6
Trim 4 mA Point
Trim 20 mA Point
Enter Password
Factory Settings
Magnetrol S/N
Device ID
1
2
3
4
Loop Test
Error Codes
Fiducial Ticks
# of Ticks
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
57-603 Horizon Guided Wave Radar Transmitter
Units
Probe Model
Probe Length
Probe Offset
Level Trim
Dielectric or
Sensitivity (single rod)
4 mA Set Point
20 mA Set Point
Damping
Fault State
Deadband
Threshold
Date/Time/Initials
1 Conversion Factor
2 Scale Offset
1
2
3
4
5
6
3.6 mA
4 mA
20 mA
22 mA
Other
End
Model
Manufacturer
Magnetrol S/N
Firmware Version
Tag
Descriptor
Date
Message
Final asmbly num
Poll address
Units
Probe Model
Probe Length
Probe Offset
Level Trim
Dielectric or
Sensitivity
4 mA Set Point
20 mA Set Point
Damping
Fault State
Deadband
Threshold
Date/Time/Initials
4 mA Trim Value
20 mA Trim Value
Universal Rev
Field dev rev
Software rev
Num Req preams
16
2.7.4 HART Revision Table (Model 704)
HART Version
Dev V1 DD V1
3.0
HCF Release Date
January 2003
Compatible with 704 Software
Version 1.0A and later
Reference Information
This section presents an overview of operating the Horizon
Guided Wave Radar Level Transmitter as well as information on troubleshooting common problems, listings of
agency approvals, lists of replacement parts, and detailed
physical, functional, and performance specifications.
3.1
Description
Horizon is a loop-powered two-wire, 24 VDC, level transmitter based on the concept of Guided Wave Radar.
Guided Wave Radar (GWR) is a relatively new level measurement technology.
The Horizon electronics are housed in a single compartment housing available in either cast aluminum or Valox.
3.2
Theory of Operation
3.2.1 Micropower Impulse Radar
GWR combines TDR (time domain reflectometry),
ETS (equivalent time sampling) and modern low power
circuitry. This synthesis of technologies brings to the level
market a high-speed radar circuit (speed of light transmission) at a small fraction of the cost of conventional radar.
The electromagnetic pulses are propagated via a waveguide
that yields a system many times more efficient than
through-air radar.
24 VDC, 4-20 mA
Loop Powered
Transmit
Pulse
A reflection is
developed off the
liquid surface
Air
εr = 1
Media ε r > 1.7
A small amount of energy
continues down the probe
in a low dielectric fluid,
e.g. hydrocarbon
17
57-603 Horizon Guided Wave Radar Transmitter
3.2.2 Time Domain Reflectometry (TDR)
TDR uses pulses of electromagnetic (EM) energy to measure distances or levels. When a pulse reaches a dielectric
discontinuity (created by media surface), part of the energy
is reflected. The greater the dielectric difference, the
greater the amplitude (strength) of the reflection.
Although TDR is relatively new to the industrial level
measurement industry, it has been used in the telephone,
computer, and power transmission industries for years. In
these industries, it is used to successfully find wire or cable
breaks and shorts. An EM pulse is sent through the wire
traveling unimpeded until it finds a line break or short. A
reflection is then returned from the break and a timing
circuit pinpoints the location.
In the Horizon transmitter, a waveguide with a characteristic impedance in air is used as a probe. When part of the
probe is immersed in a material other than air, there is
lower impedance due to the increase in the dielectric.
When the EM pulse is sent down the probe and meets the
dielectric discontinuity, a reflection is generated.
3.2.3 Equivalent Time Sampling (ETS)
ETS is used to measure the high speed, low power EM
energy. ETS is a critical key in the application of TDR to
vessel level measurement technology. The high speed EM
energy (1000 ft/µs) is difficult to measure over short
distances and at the resolution required in the process
industry. ETS captures the EM signals in real time
(nanoseconds) and reconstructs them in equivalent time
(milliseconds), which is much easier to measure with
today’s technology.
ETS is accomplished by scanning the waveguide to collect
thousands of samples. Approximately 8 scans are taken per
second.
3.3
Troubleshooting
The Horizon transmitter is designed and engineered for
trouble-free operation over a wide range of operating
conditions. Common transmitter problems are discussed
in terms of their symptoms and recommended corrective
actions. Information on how to handle material buildup
on the probe is also provided in this section.
WARNING! Explosion hazard. Do not connect or disconnect equipment unless power has been switched off or the area is
known to be non-hazardous.
57-603 Horizon Guided Wave Radar Transmitter
18
3.3.1 Model 704 System Problems
Symptom
Problem
Solution
LEVEL, % OUTPUT and LOOP values
are all inaccurate
Basic configuration data is
questionable
Reconfigure the Probe Model, Probe Length
or Offset
1) Ensure the Level is accurate
2) Verify 4 mA and 20 mA Loop values
LEVEL readings are repeatable but
consistently high or low from actual
by a fixed amount
Configuration data does not
accurately match probe length
or tank height
Ensure proper Probe Model and Probe Length
Installation Variance
Adjust Level Trim
Turbulence
Increase the Damping factor until the
readings stabilize
High Frequency connection
Check Fid Ticks (should be stable within
±10 counts)
Lower dielectric material over higher
dielectric material, e.g., oil over water
Select Fixed Threshold option
LEVEL, % OUTPUT and LOOP
values fluctuate
LEVEL, % OUTPUT and LOOP
values all reading low vs. actual
Coating, clumping or buildup on probe Expected inaccuracies due to affect
on pulse propagation
Dense, water based foam
Expected inaccuracies due to affect
on pulse propagation
LEVEL reading on Display is correct
but LOOP is stuck on 4 mA
Basic configuration data is
questionable
Set POLL ADR to 0 if not using
HART multi-drop
HART device only: handheld will only
read Universal Commands
Most current Device Descriptors
(DDs) are not installed in handheld
Contact local HART service center for the
latest DDs
Level Reading on Display is stuck at
full scale, loop is stuck at 20.5 mA
Software believes probe is flooded
(level near very top of probe)
Check actual level. If probe is not flooded,
Check for buildup or obstructions near top
of probe. Select higher dielectric range or
set sensitivity to Low
LEVEL, % OUTPUT and LOOP
values all at maximum level
Possible configuration Issue
LEVEL, % OUTPUT and LOOP
values all reading high vs. actual
Possible obstruction in tank
LEVEL value reading high when
should be zero
Transmitter loose or disconnected
from probe
Ensure transmitter connected securely
to probe
Installation Variance
Adjust Level Trim
1) Increase DEADBAND
2) Decrease SENSITIVITY
1) Reduce SENSITIVITY until
obstruction is ignored
2) Relocate probe away from obstruction
Note: When consulting the factory concerning improper operation, use the table on Page 31.
Enter all data when transmitter is working CORRECTLY and INCORRECTLY.
19
57-603 Horizon Guided Wave Radar Transmitter
3.3.2 Model 704 Error Messages
Symptom
Problem
Solution
NO FIDUCIAL
(HART error code = 0x80)
Poor circuit board/cable/probe
connection or malfunctioning cable
between electronics and probe
Check all of the connections from the
electronics to the probe
Consult factory
NO LEVEL SIGNAL
(HART error code = 0x40)
Dielectric too low
Increase sensitivity
Level within DEADBAND
Decrease Level
Mounted too close to concrete wall
Mount probe > 12" from concrete wall
Malfunctioning analog board
Replace electronic module
Consult Factory
BAD CAL PARAMTRS
(HART error code = 0x20)
Possible nozzle issues,
Deadband too small
Increase DEADBAND
Tank obstruction too close to probe
Decrease SENSITIVITY
Incorrect probe length entered
Reconfigure proper probe length
CORRUPT PARAMTRS
(HART error code = 0x10)
Internal parameters corrupted
Check all Configuration parameters
Out of Calibration (not a fault)
Displayed when at least one parameter Consult factory – Recalibration may be
has been modified after corruption
required
Verify Probe Type and Probe Length
Note: When consulting the factory concerning improper operation, use the proper table on page 31. Enter all data when
transmitter is working CORRECTLY and INCORRECTLY.
3.3.3 Application Concerns
Film
Coating
Bridging
57-603 Horizon Guided Wave Radar Transmitter
There are numerous causes for application problems.
Media buildup on the probe and stratification are covered
here. Media buildup on the probe is not a problem in most
cases–Horizon circuitry typically works very effectively.
Media build-up should be viewed as two types–Film
Coating and Bridging. A twin rod probe can be utilized
when minor film coating is a possibility.
• Continuous Film Coating
The most typical coating problems occur when the media
forms a continuous coating on the probe. Horizon will
continue to measure effectively with a small degradation in
performance. A problem can develop if the product begins
to build up on the spacers that separate the probe elements.
High dielectric media (e.g., water-based) will cause the
greatest error.
• Bridging
Media that is viscous or solid enough to form a clog, or
bridge, between the elements causes the greatest degradation in performance. High dielectric media (e.g., waterbased) will show as level at the location of the bridging.
20
3.3.3 Applications Concerns (cont.)
Low Dielectric
Medium
(e.g. oil)
• Stratification/Interface
The standard Model 704 Horizon transmitter is designed
to measure the first air/media interface it detects. However,
a low dielectric over a high dielectric application can cause
a measurement problem and cause the electronics to trigger
on the high dielectric medium that lies beneath the low
dielectric medium. Select the Fixed Threshold option to
read the upper medium. Example: Oil over water.
High Dielectric
Medium
(e.g. water)
3.4
Agency Approvals
AGENCY
FM
CSA
ATEX
MODEL
PROTECTION METHOD
703/4-5XXX-14X
Intrinsically Safe
703/4-5XXX-54X
Explosion Proof
703/4-5XXX-14X
703/4-5XXX-54X
Non-Incendive
Suitable for: 703/4-5XXX-14X
Intrinsically Safe
703/4-5XXX-54X
Explosion Proof
703/4-5XXX-14X
703/4-5XXX-54X
Non-Incendive
Suitable for: 703/4-5XXX-A4X
Intrinsically Safe
Measured media inside vessel must be
non-flammable only.
Special conditions for safe use:
Materials marked as Category 1 equipment
and used in hazardous areas requiring this
category, shall be installed in such a way
that, even in the event of rare incidents, the
aluminum enclosure cannot be an ignition
source due to impact or friction.
21
0344
AREA CLASSIFICATION
Class I, Div. 1; Groups A, B, C, & D
Class II, Div. 1; Groups E, F, & G
Class III, IP67
Entity
Class I, Div. 1; Groups C & D
Class II, Div. 1; Groups E, F, & G
Class III, IP67
Class I, Div. 2; Groups A, B, C, & D
Class II, Div. 2; Groups F & G
Class III, IP67
Class I, Div. 1; Groups A, B, C, & D
Class II, Div. 1; Group G
Class III, IP67
Entity
Class I, Div. 1; Groups C & D
Class II, Div. 1; Groups E, F, & G
Class III, IP67
Class I, Div. 2; Groups A, B, C, & D
Class II, Div. 2; Groups E, F, & G
Class III, IP67
II 1G, EEx ia IIC T4 These units are in conformity of:
1. The EMC Directive: 89/336/EEC. The units have been
tested to EN 61000-6-2/2001 and EN 61000-6-4/2001.
2. Directive 94/9/EC for equipment or protective system for use
in potentially explosive atmospheres (8th digit "A" only).
57-603 Horizon Guided Wave Radar Transmitter
3.4.1 Agency Specifications – Intrinsically Safe Installation (FM/CSA)
Caution: In Explosion Proof installations, Grounding (+) will
cause faulty operation but not permanent damage.
3.4.2 Agency Specifications – Intrinsically Safe Installation (ATEX)
Hazardous Location
Models
704
57-603 Horizon Guided Wave Radar Transmitter
IS Barrier
max: 28.6 VDC
94 mA
Analog I/O
or
Digital I/O
22
3.5
Specifications
3.5.1 Functional
Model 704
System Design
Measurement Principle
Guided time-of-flight via time domain reflectometry
Input
Measured Variable
Level, determined by the time-of-flight of a guided radar
pulse from transmitter to product surface and back
Zero and Span
6 to 192 inches (15 cm to 488 cm)
Output
Type
Analog
Range
Analog
3.8 to 20.5 mA useable
Digital
0 to 192 inches (0 to 488 cm)
Analog
0.01 mA
Digital
0.1" or 0.1 cm
Resolution
4 to 20 mA with optional HART digital signal
Loop Resistance
Diagnostic Alarm
Damping
GP/IS/XP- 550 Ω @ 24 VDC (20.5 mA)
Adjustable 3.6 mA, 22 mA, HOLD
0-10 seconds
User Interface
Keypad
Indication
Digital Communication
3-button menu-driven data entry
2-line x 8-character display
HART Version 5.x compatible
Power (Measured at instrument terminals)
General Purpose/Intrinsically Safe (FM/CSA)
12 to 28.6 VDC
General Purpose/Intrinsically Safe (ATEX)
12 to 28.6 VDC
Explosion Proof FM/CSA
12 to 28.6 VDC
Pi = 0.67W, Ii = 94 mA
Housing
Material
Cable Entry
Aluminum A356T6 (< 0.2% copper)
⁄4" NPT, M20
3
3.6 mA diagnostic alarm only valid without HART or display option.
HART communicator Magnetrol P/N 89-5213-XXX sold separately.
1200
20.5 mA
1000
Ω
800
600
550
400
200
24 VDC
0
12
0
10
20
30
40 VDC
GENERAL PURPOSE (GP)
INTRINSICALLY SAFE (IS)
EXPLOSION PROOF (XP)
23
57-603 Horizon Guided Wave Radar Transmitter
Environment
Operating Temperature: Alum. Housing
-40 to +175° F
(-40 to +80° C)
-40 to +160° F
(-40 to +70° C) ATEX EExia
-40 to +160° F
(-40 to +70° C)
Display Function Operating Temperature
-5 to +160° F
(-20 to +70° C)
Storage Temperature
-50 to +175° F
(-40 to +80° C)
Humidity
0-99%, non-condensing
Electromagnetic Compatibility
Meets CE Requirements: EN 61000-6-2/2001, EN 61000-6-4/2001
Valox Housing
(Twin Rod must be used in metallic vessel or stillwell to maintain
CE requirement).
Mounting Affects: Twin Rod
Active rod must be mounted at least 1" (25 mm) from any surface or
obstruction. Minimum stillwell diameter for Twin Rod probe is 3".
Shock Class
ANSI/ISA-S71.03 Class SA1
Vibration Class
ANSI/ISA-S71.03 Class VC2
3.5.2 Performance
Reference Conditions
Reflection from liquid of selected dielectric at +70° F (+20° C)
Linearity
Coaxial
±0.25"
Twin Rod
±0.50"
with 72" coaxial probe (Model 704 with CFD threshold)
Resolution
±0.15 inch
Repeatability
< 0.15 inch
Hysteresis
< 0.15 inch
Response Time
< 1 second
Warm-up Time
< 5 seconds
Operating Temp. Range
-40° to +175° F (-40° to +80° C)
LCD Temp. Range
-5° to +160° F (-20° to +70° C)
Ambient Temp. Effect
Approximately +0.03% of probe length/ ° C
Process Dielectric Effect
< .5 inch within selected range
Humidity
0-99%, non-condensing
Electromagnetic Compatibility
Meets CE requirements (EN 61000-6-2/2001, EN 61000-6-4/2001)
(Twin Rod probes must be used in metallic vessel or
stillwell to maintain CE requirement)
Specifications will degrade with Model 7XB probe and fixed threshold configuration.
Top 24 inches of Model 7XB probe: 0.75 inches
57-603 Horizon Guided Wave Radar Transmitter
24
3.5.3 Materials of Construction
Coaxial
(7XA, 7XR)
Model
Rigid Twin Rod
(7XB)
316/616L stainless steel (Hastelloy C and Monel opt.)
TFE spacers, Viton® O-rings
Materials
Diameter
.3125" (8mm) ø rod
.875" (10mm) ø tube
Two, .5" (13 mm) ø rods,
.375" clearance between rods
Process
Connection
3
⁄4" NPT, 1" BSP
ANSI or DIN flanges
2" NPT
ANSI or DIN flanges
1" (25 mm)@ εr = 2.0
6"(150 mm)@ εr = 80.0
1" (25 mm) (+4" inactive) εr > 10
7" (178 mm) (+4" inactive) εr < 10
Transition Zone
(Top)
6" (150 mm) @ εr = 2.0
1" (25 mm) @ εr = 80.0
Transition Zone
(Bottom)
Note: Transition Zone is dielectric dependent; εr = dielectric permittivity. The transmitter still operates but level
reading may become nonlinear in Transition Zone.
Model
Coaxial
(7XA, 7XR)
Twin Rod
(7XB)
Maximum
Process Temperature
Maximum
Process Pressure
+400° F @ 270 psig
(+200° C @ 13 bar)
1000 psig @ +70° F
(70 bar @ +20° C)
+400° F @ 200 psig
(+200° C @ 13 bar)
750 psig @ +70° F
(50 bar @ +20° C)
Maximum Viscosity
500 cp
1500 cp
Dielectric Range
≥ 1.7
≥ 2.5
Hermeticity
N/A
N/A
200
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
180
Ambient Temperature ∞F
Process Pressure, psi
3.5.4 Process Conditions
140
120
100
80
60
40
20
50
150
250
350
Process Temperature, ∞F (max. 400)
7XA
7XB
25
160
450
0
100
150
200
250
300
Process Temperature, ∞F
350
400
Ambient Temperature vs Process Temperature - 7XA & 7XB
57-603 Horizon Guided Wave Radar Transmitter
3.5.5 Physical
inches (mm)
6.91
(175)
4.04
(103)
2.81
(71)
2.32
(59)
Process
Connection
Process
Connection
Probe
Insertion
Length
Probe
Insertion
Length
4.18
(106)
Process
Conn.
Probe
Insertion
Length
0.88
(22)
Horizon Model 7XA Probe
NPT Threaded Connection
Horizon Model 7XA Probe
Flanged Connection
COAXIAL PROBES
Probe
H Dimension-NPT
H Dimension-Flanged
7XA
2.32 (59)
2.91 (71)
7XR
5.89 (150)
6.57 (167)
7XP
4.189 (106)
6.54 (166)
Horizon Model 7XP Probe
NPT Threaded Connection
4.63
(117)
∅ 4.09 (104)
Mounting
Flange
Process
Connection
4.00 (102)
Inactive
Length
2.78
(71)
Horizon Top View
1.66
(42)
5.25 (33)
Inactive
Length
Probe
Insertion
Length
Probe
Insertion
Length
1.63
(41)
Horizon Model 7XB Twin Rod Probe
NPT Threaded Connection
57-603 Horizon Guided Wave Radar Transmitter
Horizon Model 7XB Twin Rod Probe
Flanged Connection
26
3.6
Replacement Parts
Item
x
Description
Part Number
O-ring (neoprene)
(Consult Factory for alternative O-ring materials)
012-2201-237
y
Housing cover without glass
Aluminum
Valox
004-9193-003
003-1226-001
z
Housing cover with glass
Aluminum IS
Aluminum XP
Valox
036-4410-001
036-4410-005
036-4410-001
z
x
27
57-603 Horizon Guided Wave Radar Transmitter
3.7
Model Numbers
3.7.1 Transmitter
BASIC MODEL NUMBER
704
Horizon GWR Level Transmitter for use with probe models 7XA, 7XB, 7XR and 7EP
POWER
5
24 VDC, two-wire
SIGNAL OUTPUT
0
1
4-20 mA only, without HART (must be ordered with Accessory Code A)
4-20 mA with HART (HART communicator Magnetrol P/N 89-5213-XXX sold separately)
MENU LANGUAGE
1
2
3
4
English
Spanish
French
German
ACCESSORIES
0
A
No digital display and keypad
Digital display and keypad
MOUNTING/CLASSIFICATION
1
5
A
Integral, General Purpose & Intrinsically Safe
(FM & CSA), Non-Incendive (Class I, Div. 2)
Integral, Explosion Proof (FM & CSA)
Integral, General Purpose & Intrinsically Safe
(ATEX EEx ia IIC T4)
HOUSING
3
4
Valox, single compartment
Cast aluminum, single compartment
CONDUIT CONNECTION
0
1
7
0
⁄4" NPT
M20
3
5
57-603 Horizon Guided Wave Radar Transmitter
28
3.7.2 Probe
BASIC MODEL NUMBER
7E
7M
Horizon GWR probe, English unit of measure
Horizon GWR probe, Metric unit of measure
CONFIGURATION/STYLE
A
B
P
R
Coaxial, 3⁄4" process connection or larger
Twin Rod, 2" NPT or 3" flanged process connection or larger
Coaxial High Pressure, 3⁄4" process connection or larger
Coaxial Overfill, 3⁄4" process connection or larger
(Dielectric
(Dielectric
(Dielectric
(Dielectric
range
range
range
range
≥
≥
≥
≥
1.7)
2.5)
1.7)
1.7)
MATERIAL OF CONSTRUCTION
A
316/316L stainless steel
B
Hastelloy C
C
Monel
PROCESS CONNECTION SIZE/TYPE
Refer to next page for selections
O-RINGS
0
1
2
8
N
Viton® GFLT
EPDM (Ethylene Propylene Rubber)
Kalrez 4079
Aegis PF128
None (Use with probes 7XP)
LENGTH
24 to 192 inches (60 cm to 488 cm)
(unit of measure is determined by second digit of Model Number)
Examples: 24 inches = 024; 60 centimeters = 060
7
29
57-603 Horizon Guided Wave Radar Transmitter
3.7.2 Probe
Insertion Length
NPT Process Connection
Insertion Length
BSP Process Connection
Insertion Length
Sanitary Flange
Insertion Length
ANSI or DIN Welded Flange
PROCESS CONNECTION SIZE/TYPE
THREADED CONNECTIONS
11
22
41
42
⁄4" NPT Thread
1" BSP Thread
2" NPT Thread
2" BSP Thread
3
ANSI RAISED FACE FLANGE CONNECTIONS
23
24
33
34
43
44
53
54
63
64
1" 150#
1" 300#
11⁄2" 150#
11⁄2" 300#
2" 150#
2" 300#
3" 150#
3" 300#
4" 150#
4" 300#
ANSI Raised Face Flange
ANSI Raised Face Flange
ANSI Raised Face Flange
ANSI Raised Face Flange
ANSI Raised Face Flange
ANSI Raised Face Flange
ANSI Raised Face Flange
ANSI Raised Face Flange
ANSI Raised Face Flange
ANSI Raised Face Flange
SANITARY FLANGE CONNECTIONS
4P
5P
6P
2" Triclover® type, 16 AMP Sanitary Flange
3" Triclover type, 16 AMP Sanitary Flange
4" Triclover type, 16 AMP Sanitary Flange
DIN FLANGE CONNECTIONS
BA
BB
CA
CB
DA
DB
EA
EB
FA
FB
DN
DN
DN
DN
DN
DN
DN
DN
DN
DN
25,
25,
40,
40,
50,
50,
80,
80,
100,
100,
PN 16
PN 25/40
PN 16
PN 25/40
PN 16
PN 25/40
PN 16
PN 25/40
PN 16
PN 25/40
DIN 2527 Form B Flange
DIN 2527 Form B Flange
DIN 2527 Form B Flange
DIN 2527 Form B Flange
DIN 2527 Form B Flange
DIN 2527 Form B Flange
DIN 2527 Form B Flange
DIN 2527 Form B Flange
DIN 2527 Form B Flange
DIN 2527 Form B Flange
Configuration/Style Code A only.
Configuration/Style Code B only.
7
57-603 Horizon Guided Wave Radar Transmitter
30
®
704 Horizon Guided Wave Radar Transmitter
Configuration Data Sheet
Copy blank page and store calibration data for future reference and troubleshooting.
Item
Value
Value
Value
Vessel Name
Vessel #
Media & Dielectric
Tag #
Electronics Serial #
Probe Serial #
TROUBLESHOOTING
Correct Value
Incorrect Value
Level
Units
Probe Mount
Probe Length
Offset
Level Trim
Dielectric/Sensitivity
4mA point
20mA point
Damping
Fault Choice
Deadband
HART Poll Address
Trim 4mA
Trim 20mA
Loop Test
Fiducial Tick
Conversion Factor
Scale Offset
# of Ticks
Threshold
Software Version
Name
Date
Time
31
57-603 Horizon Guided Wave Radar Transmitter
Notes
ASSURED QUALITY & SERVICE COST LESS
Service Policy
Return Material Procedure
Owners of Magnetrol/STI controls may request the
return of a control 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/STI 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 Magnetrol/STI's 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.
5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com
145 Jardin Drive, Units 1 & 2 • Concord, Ontario Canada L4K 1X7 • 905-738-9600 • Fax 905-738-1306
Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93
Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317
5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4028 • Fax 630-969-9489 • www.sticontrols.com
Copyright © 2008 Magnetrol International, Incorporated. All rights reserved. Printed in the USA.
Viton® is a registered trademark of DuPont Performance Elastomers.
Hastelloy® is a registered trademark of Haynes International, Inc.
Monel® and Inconel® are registered trademarks of Special Metals Corporation
Tri-Clover® is a registered trademark of Tri-Clover, Inc.
BULLETIN: 57-603.1
EFFECTIVE: April 2008
SUPERSEDES: February 2003