™
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 trans-
mitter. It is important that all instructions are read care-
fully 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 dis-
charge. 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 dis-
connect transmitters rated Explosion-proof or Non-
incendive 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 deter-
mined 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 spe-
cial 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 transmit-
ter. 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 max-
imum 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 1
1
⁄
2
"
(38 mm), twin rod probes 1
7
⁄
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?
Probe
Model
Probe
Length
Offset
What probe model is listed on the
model information?
(first four digits of probe model number)
What probe length is listed on the
model information?
What is the distance from the probe
tip to the desired 0% level point?
Answer
_____________
_____________
_____________
_____________
_____________
_____________
_____________
_____________
Dielectric What is the dielectric constant of the
(sensitivity) process medium?
Set
4.0 mA
Set
20.0 mA
What is the 0% reference point for the
4.0 mA value?
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
{
z
y
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.
x
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 com-
pound 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.
QuickStart Wiring
1.3
WARNING!
Explosion hazard. Do not connect or disconnect equip-
ment 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
1. Remove the cover of the transmitter.
2. Gripping the display module by the flats, remove the mod-
ule 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 con-
duit 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.
57-603 Horizon Guided Wave Radar Transmitter
2
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