March 2004
Process Control Instruments
UTX878 Ultrasonic
Flow Transmitter
User’s Manual 910-253A
March 2004
The UTX878 Flow Transmitter and Transducers
iii
March 2004
Warranty Each instrument manufactured by GE Panametrics is warranted to be
free from defects in material and workmanship. Liability under this
warranty is limited to restoring the instrument to normal operation or
replacing the instrument, at the sole discretion of GE Panametrics. Fuses
and batteries are specifically excluded from any liability. This warranty
is effective from the date of delivery to the original purchaser. If GE
Panametrics determines that the equipment was defective, the warranty
period is:
• one year for general electronic failures of the instrument
• one year for mechanical failures of the sensor
If GE Panametrics determines that the equipment was damaged by
misuse, improper installation, the use of unauthorized replacement parts,
or operating conditions outside the guidelines specified by GE
Panametrics, the repairs are not covered under this warranty.
The warranties set forth herein are exclusive and are in lieu of
all other warranties whether statutory, express or implied
(including warranties or merchantability and fitness for a
particular purpose, and warranties arising from course of
dealing or usage or trade).
Return Policy If a GE Panametrics instrument malfunctions within the warranty period,
the following procedure must be completed:
1. Notify GE Panametrics, giving full details of the problem, and
provide the model number and serial number of the instrument. If the
nature of the problem indicates the need for factory service, GE
Panametrics will issue a RETURN AUTHORIZATION number
(RA), and shipping instructions for the return of the instrument to a
service center will be provided.
2. If GE Panametrics instructs you to send your instrument to a service
center, it must be shipped prepaid to the authorized repair station
indicated in the shipping instructions.
3. Upon receipt, GE Panametrics will evaluate the instrument to
determine the cause of the malfunction.
Then, one of the following courses of action will then be taken:
• If the damage is covered under the terms of the warranty, the
instrument will be repaired at no cost to the owner and returned.
• If GE Panametrics determines that the damage is not covered under
the terms of the warranty, or if the warranty has expired, an estimate
for the cost of the repairs at standard rates will be provided. Upon
receipt of the owner’s approval to proceed, the instrument will be
repaired and returned.
v
March 2004
Table of Contents
Chapter 1: Installation
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Site Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Electronics Enclosure Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Transducer Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Cable Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Transducer Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
Mounting the UTX878 Electronics Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Making the Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Preparing the Unit Before Making Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
Wiring the Line Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
Installing the Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Setting Transducer Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Installing the Transducers on the Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Wiring the Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Wiring the RS232 Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
What’s Next?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
Chapter 2: Programming Site Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Unlocking and Locking the UTX878 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Unlocking the UTX878. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
Locking the UTX878 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
Activating a Channel/Path (Status) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Entering Transducer Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Other Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Entering Pipe Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Entering the Pipe Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Entering Pipe Lining Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
Entering Fluid Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Entering Fluid Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Entering Reynolds Correction Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
Entering Path Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
Entering Signal Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
Entering the Meter Correction (K) Factor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18
Entering Error Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20
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March 2004
Table of Contents (cont.)
Chapter 3: Displaying Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Setting Up the Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Changing the Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Changing the Measurement Parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Adjusting the Numeric Display Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Changing the Measurement Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Interpreting the Error Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Setting Screen Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Setting the Number of Screen Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Chapter 4: Configuring Meter Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Entering Global Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Entering Base (Zero) and Span Output Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Entering Output Type and Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Entering Base and Span Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Entering Error Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Entering RS232 Communication Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Resetting Forward and Reverse Totals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Chapter 5: Calibration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Updating UTX878 Instrument Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Checking the Meter Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Trimming 4-20 mA via the Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
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March 2004
Table of Contents (cont.)
Chapter 6: Error Codes and Diagnostics
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
E0: No Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
E1: Low Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
E2: Sound Speed Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
E3: Velocity Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
E4: Signal Quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
E5: Amplitude Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
E6: Cycle Skip, Accel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
E7: Analog Out Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
E30: Channel Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
E31: Invalid Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Displaying Diagnostic Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
Fluid and Pipe Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Fluid Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Pipe Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 -7
Transducer Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
Clamp-on Transducer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8
Chapter 7: Specifications
General Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Environmental. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Measurement Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Flow Accuracy
(% of Reading) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Rangeability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Fluid Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Power Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 -2
Input/Output Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
Transducer Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Clamp-on Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Pipe Size and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Clamp-on Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
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March 2004
Table of Contents (cont.)
Appendix A: Menu Maps
Appendix B: CE Mark Compliance
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
EMC Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Appendix C: Data Records
Site Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Appendix D: Service Record
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1
Data Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1
Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-3
x
Chapter 1
Installation
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Site Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Mounting the UTX878 Electronics Enclosure . . . . . . . . . . . . . . . .1-4
Making the Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . .1-4
Installing the Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
March 2004
Introduction To ensure safe and reliable operation of the Model UTX878
Ultrasonic Flowmeter, the system must be installed and programmed
in accordance with the guidelines established by GE Panametrics’
engineers. Those guidelines, explained in detail in this chapter,
include the following topics:
• Unpacking the Model UTX878 system
• Selecting suitable sites for the electronics enclosure and the
transducers
• Installing the transducers
• Installing the electronics enclosure
• Wiring the electronics enclosure
!WARNING!
Be sure to follow all applicable local safety codes
and regulations for installing electrical equipment.
Consult company safety personnel or local safety
authorities to verify the safety of any procedure or
practice.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables
must be installed as described in
Appendix B, CE Mark Compliance.
Installation 1-1
March 2004
Unpacking Carefully remove the electronics enclosure and the transducer/cable
assembly from the shipping containers. Before discarding any of the
packing materials, account for all components and documentation
listed on the packing slip. The discarding of an important item along
with the packing materials is all too common. If anything is missing
or damaged, contact the factory immediately for assistance.
Site Considerations Because the relative location of the transducers and the electronics
enclosure is important, use the guidelines in this section to plan the
UTX878 installation.
Electronics Enclosure Location
The standard UTX878 electronics enclosure is epoxy-coated
aluminum rated for weatherproof NEMA4X, IP67 applications.
Typically, the enclosure is mounted as close as possible to the
transducers. When choosing a site, make sure the location permits
easy access to the electronics enclosure for programming,
maintenance and service.
Transducer Location For a given fluid and pipe, the Model UTX878’s accuracy depends
primarily on the location and spacing of the transducers. In addition
to accessibility, when planning for transducer location, adhere to the
following guidelines:
• Locate the transducers so that there are at least 10 pipe diameters
of straight, undisturbed flow upstream and 5 pipe diameters of
straight, undisturbed flow downstream from the measurement
point. Undisturbed flow means avoiding sources of turbulence in
the fluid such as valves, flanges, expansions, and elbows; avoiding
swirl; and avoiding cavitation.
• Locate the transducers on a common axial plane along the pipe.
Locate the transducers on the side of the pipe, rather than the top or
bottom, since the top of the pipe tends to accumulate gas and the
bottom tends to accumulate sediment. Either condition will cause
increased attenuation of the ultrasonic signal. There is no similar
restriction with vertical pipes. However, vertical pipes with
downward flow should be avoided in order to insure a full pipe at
the measurement point.
Cable Lengths Locate the electronics enclosure as close as possible to the
transducers. GE Panametrics can supply UTX878 transducer cables
in fixed lengths from 6 ft (2 m) up to 100 ft (30 m) in length for
remote location of the electronics enclosure.
1-2 Installation
March 2004
Transducer Cables When installing the transducer cables, always observe established
standard practices for the installation of electrical cables. Do not route
transducer cables alongside high amperage AC power lines or any
other cables that could cause electrical interference. Also, protect the
transducer cables and connections from the weather and corrosive
atmospheres. Do not run the transducer cables along a pipe with a
surface temperature over 75°C (167°F).
IMPORTANT: Use only the cables and transducers that have been
supplied with the UTX878.
Installation 1-3
March 2004
Mounting the UTX878 Electronics Enclosure
Making the Electrical Connections
The standard Model UTX878 electronics package is housed in a
epoxy-coated aluminum weatherproof NEMA4X, IP67 enclosure
suitable for indoor or outdoor use. Figure 1-5 on page 1-11 shows the
outline and installation drawing. Refer to Chapter 7, Specifications,
for the mounting dimensions and the weight of this enclosure.
This section contains instructions for making all the necessary
electrical connections to the Model UTX878 flow transmitter. Refer
to Figure 1-7 on page 1-13 for a complete wiring diagram.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables
must be installed as described in
Appendix B, CE Mark Compliance.
!WARNING!
Always disconnect the line power from the Model
UTX878 before removing the front cover.
Preparing the Unit Before Making Electrical Connections
Prepare the unit as described below before making any electrical
connections.
1. Disconnect any previously wired power line from the unit.
2. Remove the screws on the front cover.
3. Install any required cable clamps on the appropriate conduit holes
on the bottom of the enclosure.
Proceed to the next section to make the desired wiring connections.
1-4 Installation
March 2004
Wiring the Line Power The Model UTX878 operates on 15-30 VDC loop power. The label
on the side of the electronics enclosure lists the meter’s required line
voltage and power rating. Be sure to connect the meter only to the
specified line voltage and with a shielded cable.
Refer to Figure 1-7 on page 1-13 to locate the power terminal block
and connect the line power as follows:
1. Follow the instructions on page 1-4 to prepare the unit before you
connect power.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables
must be installed as described in
Appendix B, CE Mark Compliance.
2. Connect the UTX878 case to the earth ground with a grounding
cable.
3. Strip 1/4-in. of insulation from the end of each of the two line
power leads.
4. Route the shielded cable through the conduit hole and connect the
power leads to the power terminal block as shown in Figure 1-7 on
page 1-13. Tie the shield drain wire to the ground bus bar inside
the UTX878, but leave the shield wire open on the power supply
end (to avoid AC ground loops and for CE certification).
5. Leaving a small amount of slack, secure the power line with the
cable clamp.
Note: If you are using a 4-20 mA loop current measuring resistor,
add the resistor in series with the power supply Loop_Rtn end
(TB3-2). You must configure the loop current measuring
equipment as follows:
• The negative side (-) of the probe goes to the power supply
side of the resistor.
• The positive side (+) of the probe goes to the UTX878 side
of the resistor.
6. If you are installing the UTX878 for the first time, refer to Chapter
2, Programming Site Data, and program the sections from page 24 to 2-14 (the Status, Transducer, Pipe, Fluid and Path options) to
determine the appropriate transducer spacing to position the
transducers (see the next page).
Installation 1-5
March 2004
Installing the Transducers
The transducers that have been specially designed for use with the
UTX878 are available in two models: 4 MHz for 1/2 to 2 in. pipes and
2 MHz for 2 to 8 in., and typically support 2-traverse applications.
The preattached cables come in lengths from 6 to 100 ft. Figure 1-1
below shows a typical UTX878 transducer, while the outline and
installation drawing for the clamping fixture appears in Figure 1-6 on
page 1-12.
Adjustment
Screws
Figure 1-1: UTX878 Transduce r/Cab le Assembly
Setting Transducer Spacing
If you have not already obtained the transducer spacing, you must
program the Status, Transducer, Pipe, Fluid and Path options of the
Program menu (pages 2-4 to 2-14) to calculate the appropriate
setting. To set the desired transducer spacing:
1. Loosen the red screws on the adjustable transducer (shown in
Figure 1-1 above).
2. Slide the adjustable transducer on the rails until you have
positioned it at the desired spacing. Use the ruler on the rails and
the white tick mark on the transducer housing to assist in setting
the correct spacing.
3. Tighten the red screws to secure the transducer to the rails.
Note: If your application requires one or three traverses, you can
remove the adjustable transducer fr om the rails and use it as a
separate transducer at a 180° angle from the stationary
transducer, as shown in Figure 1-2 below.
Figure 1-2: Positioning for 1 or 3-Traverse Applications
1-6 Installation
March 2004
Installing the Transducers on the Pipe
Note: Some pipe preparation may be required before securing the
transducers to the pipe. Remove any paint or coating from the
surface in contact with the transducers. A flat, smooth surface
is ideal.
1. Apply the supplied couplant to the transducer faces, as shown in
Figure 1-3 below.
Figure 1-3: The Transducer Faces
2. Put the transducer fixture at the desired location on the pipe.
Secure it with the supplied stainless steel clamps. Figure 1-4
below illustrates a typical installation.
Note: Installation on the sides (at 3 and 9 o’clock) of the pipe is
ideal. The top of the pipe might contain bubbles, while the
bottom might contain sediment.
Figure 1-4: A Typical Transducer Installation
Once on the pipe, an internal spring mechanism ensures proper
mechanical pressure by “pressing” the transducer face against the
pipe surface. Refer to the next page to wire the transducer cables to
the UTX878.
Installation 1-7
March 2004
Wiring the Transducers Follow the instructions on page 1-4 before wiring the transducers.
!WARNING!
Before connecting the transducers, discharge any
static buildup by shorting the twisted pairs of the
transducer cables to the metal shield on the cable
connector.
1. Refer to the wiring diagram in Figure 1-7 on page 1-13 and
connect the transducer cables to the terminal block (TB-1) for
Channel 1. Then, secure the cable clamp.
Note: The RED cable leads are the SIG (+) leads and the BLACK
cable leads are the RTN (-) leads. The shield cable leads are
connected to the ground bus.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables
must be installed as described in
Appendix B, CE Mark Compliance.
2. For a 2-path averaging UTX878, repeat step 1 to connect the CH2
transducers to the terminal block for Channel 2. It is not
that both channels/paths of a 2-Channel unit be connected.
Note: The UTX878 uses two channels or paths to make more
accurate flow measurement by averaging, subtracting or
adding the channels/paths together.
3. Connect the transducer shield wires to the UTX878 ground bus.
4. Do one of the following:
required
• Proceed to the next section to wire the UTX878 RS232 serial
port, if desired.
• Replace the front cover on the enclosure and tighten the screws.
Note: A channel must be activated before it can begin taking
measurements. See Chapter 2, Programming Site Data, for
instructions.
1-8 Installation
March 2004
Wiring the RS232 Serial Port
The Model UTX878 flow transmitter is equipped with a built-in
RS232 serial communications port. Proceed to the section below for
wiring instructions. For more information on serial communications,
refer to the EIA-RS Serial Communications manual (916-054).
Use the serial port to connect the Model UTX878 flow transmitter to
an ANSI terminal or a personal computer. The RS232 interface is
wired as Data Terminal Equipment (DTE), and the signals available
at the COMMUNICATION terminal block are shown in Table 1-1
below.
1. Follow the instructions on page 1-4 to prepare the unit before you
connect power.
2. Use the information in Table 1-1 below to construct a suitable
shielded cable for connecting the Model UTX878 to the external
device. If desired, an appropriate cable may be purchased from GE
Panametrics.
Note: The DTR and RTS signals power the UTX878 communication
circuit and are required for proper operation. Consult the
factory if you have additional questions.
Communication
TB4
1 Brown DTR 20 4 20 4
2 White RTS 4 7 4 7
3 Black Signal Ground 7 5 7 5
4 Red UTX878 (Transmit) 2 3 3 2
5 Green UTX878 (Receive) 3 2 2 3
Note: Signal names that imply direction (e.g., transmit and receive)
are named from the point of view of the DTE device (the GE
Panametrics meter is usually considered the DTE device).
When the RS232 standard is strictly followed, these signals
are labeled with the same name and pin # on the DCE device
side as well. Unfortunately, the convention is not followed
because the DTE and DCE side get confused. Therefore,
connections that imply direction are changed to reflect their
direction on the DCE side.
Table 1-1: RS232 Connection to DCE or DTE Device
Colors for GE
Panametrics
Cable (flying
leads)
Signal
Description
DCE
DB25
Pin #
DCE
DB9
Pin #
DTE
DB25
Pin #
DTE
DB9
Pin #
Installation 1-9
March 2004
Wiring the RS232 Serial
Port (cont.)
3. Feed the flying leads end of the cable through the conduit hole and
wire the leads to the COMMUNICATION terminal block (TB4)
as shown in Figure 1-7 on page 1-13. Connect the other end of the
cable to the ANSI terminal or personal computer, and secure the
cable clamp.
4. Tie the shield drain wire to the UTX878 ground bus bar.
!ATTENTION EUROPEAN CUSTOMERS!
To meet CE Mark requirements, all cables
must be installed as described in
Appendix B, CE Mark Compliance.
After the wiring has been completed, replace the front cover on the
enclosure and tighten the screws. Consult the user’s manual for the
external device to configure it for use with the UTX878.
What’s Next? After the UTX878 has been completely installed and wired, reconnect
line power.
• Check the diagnostics (discussed in Chapter 6, Error Codes
and Diagnostics) to ensure that the UTX878 has been properly
set up.
• Refer to Chapter 2, Programming Site Data, to program the
meter for taking flow rate measurements.
1-10 Installation
March 2004
Figure 1-5: UTX878 Outline and Installation (Dwg. #712-1196, rev. 2)
Installation 1-11
March 2004
Installation 1-12
Figure 1-6: Clamping Fixture Outline and Installation (Dwg. #570-076, rev. 1)
March 2004
Installation 1-13
Figure 1-7: UTX878 Wiring Diagram (Dwg. #702-528, rev. 2)
Chapter 2
Programming Site Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Activating a Channel/Path (Status). . . . . . . . . . . . . . . . . . . . . . . . .2-4
Entering T ransducer Parameters . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Entering Pipe Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Entering Fluid Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
Entering Path Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-15
Entering Signal Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
Entering the Meter Correction (K) Factor. . . . . . . . . . . . . . . . . . .2-18
Entering Error Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19
What’s Next?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-20
March 2004
Introduction The Model UTX878 flow transmitter includes a User Program that
provides access to the various programmable features of the
instrument.This chapter describes step-by-step programming
instructions using the internal keypad, shown below in Figure 2-1.
W
W
W
W
ENT
Ch1 Volumetric
100.00
Gallons/min E0
Figure 2-1: A UTX878 Display and Keypad
Refer to the appropriate section for a discussion of the following
PROG menu options:
ESC
• Status - activate or deactivate one or both channels/paths
Note: The UTX878 can use two channels or paths to make more
accurate flow measurement by averaging, subtracting or
adding the channels/paths together.
• Transducer - enter data for preprogrammed or special clamp-on
transducers
• Pipe - enter pipe parameters
• Fluid - enter fluid type and Reynolds Correction data
• Path - enter number of traverses and transducer spacing (for
clamp-on transducers)
• Signal - entering signal parameters such as Delta-T offset, zero
cutoff and velocity averaging
• K Factor - entering the Meter Correction (K) Factor as a single
value or as a table of values
• Error Limits - entering minimum and maximum signal, velocity,
amplitude and soundspeed.
To measure flow rate with the UTX878 you must, at a minimum,
activate the channel/path(s), and enter transducer, pipe and fluid
parameters. As a programming aid, Appendix A includes a complete
set of menu maps for the user program, and Figure A-1 on page A-1
offers the menu map for the PROG menu.
Note: This manual will describe only the programming of Channel
1. To program Channel 2 of a 2-channel/path meter, simply
repeat the same procedures presented for Channel 1.
Programming Site Data 2-1
March 2004
Unlocking and Locking the UTX878
T o prevent unauthorized tampering with either the display or the user
program, the UTX878 offers a pair of security codes. Once you have
set the security level, an operator requires one of these codes to
change either the display (Prog Lock) or the display and the user
program (Full Lock).
Unlocking the UTX878 To unlock the display and/or the user program:
1. Press [ESC], [ENT], [ESC]. A Security Check window, similar to
Figure 2-2 below, opens.
Security Check
ENTER VALUE
9999
[ENT] = save changes
[ESC] = undo changes
[W] [X] = move cursor
[S] [T] = change value
Figure 2-2: Security Check Window
2. Using the arrow keys, change the code number to the value
desired for your security level.
• For Prog Lock (granting access only to the display), the number
is
2719.
• For Full Lock (granting access to the display and user
program), the number is
3. Press [ENT]. The display screen reappears, with the lock removed
or partially unlocked. Security will remain at this level until you
change the level in the user program, as described on the next
page.
7378.
2-2 Programming Site Data
Locking the UTX878 You can access the security level in two ways.
From the display screen:
1. Press the [X] key three times, until the lock in the upper right
corner is highlighted.
2. Press [ENT], and proceed to step 4 below.
From the User Program:
1. Press [ESC]. The UTX878 enters the User Program.
2. Press the [X] key until USER is bracketed.
3. The menu highlights Set Security. Press [ENT].
4. The screen shows three options:
March 2004
• Full Lock, which prevents a user from changing any part of the
display or user program without the appropriate code:
• Prog Lock, which allows a user to change the display but not to
enter the user program:
• Unlocked, which allows access to both the display and the user
program.
Scroll to the desired option and press [ENT] twice.
5. Press [ESC] to return to the User Program, or continue pressing
[ESC] to return to the display screen. If you have chosen to fully
lock the UTX878, the screen appears similar to Figure 2-3 below,
with a solid lock in the upper right corner. (For a meter with only
the user program locked, the lock shows a keyhole in the center.)
Ch 1 Velocity
0.0
Meters/sec E1
Figure 2-3: UTX878 Screen with Locked Program
Programming Site Data 2-3
March 2004
Activating a Channel/ Path (Status)
In the Status submenu of the PROG menu, you can activate or
deactivate a channel/path. While the channel/path should be activated
when you receive your unit, you should verify that the channel/path is
active before you begin programming. When following the
programming instructions, refer to Figure A-1 on page A-1 of
Appendix A, Menu Maps. Remember to record all programmed data
in Appendix C, Data Records.
To access the Status submenu:
1. Press [ESC]. The UTX878 enters the User Program.
2. Press the [X] key until PROG is bracketed in the top left corner
and press [ENT].
3. Use the [S] and [T] keys to scroll to the desired channel or to
2-path Averaging and press [ENT]. The screen appears similar to
Figure 2-4 below.
Note: The 2-Path Avg option is intended for applications where two
sets of transducers are installed in the same location in the
same pipe to improve accuracy and the UTX878 operates in
AVE mode (see page 3-2). With this function enabled, the
UTX878 performs error handling only if both channels/paths
are in error. If this function is disabled, error handling occurs
when either channel/path goes into error.
PROG PROG/PROG
Status . . .
Transducer . . .
Pipe . . .
Fluid . . .
Path . . .
Signal . . .
T
K Factor . . .
Figure 2-4: The PROG Menu
4. Press [ENT] to open the Status submenu.
5. The screen offers two options, ON and OFF . Use the [S] and [T]
keys to scroll to the desired selection and press [ENT].
IMPORTANT: On any menu, if you scroll to a differ ent option, press
[ENT] twice to select that option (once to enter and
again to confirm the selection).
6. Press [ESC] (or [ENT] twice if you have selected the other
option) to return to the channel menu.
2-4 Programming Site Data
March 2004
What’s Next?
After completing the above steps, the user program returns to the
PROG menu. Do one of the following:
• To enter transducer data, press the [T] key to highlight the
Transducer listing and press [ENT].
• To program in other menus, refer to Appendix A, Menu Maps, to
navigate to the desired menu.
• To leave the User Program, press [ESC] three times.
Programming Site Data 2-5
March 2004
Entering Transducer Parameters
The Transducer submenu enables you to enter parameters for
preprogrammed or special clamp-on transducers. Remember to
record all programmed data in Appendix C, Data Records.
Note: If you have programmed the Status submenu, proceed directly
to Step 4. If you scroll to a different option, press [ENT ] twice
to select that option (once to enter and again to confirm the
selection).
To access the Transducer submenu:
1. Press [ESC]. The UTX878 enters the User Program.
2. Press the [X] key until PROG is bracketed in the top left corner
and press [ENT].
3. Use the [S] and [T] keys to scroll to the desired Channel and
press [ENT].
4. Scroll to the Transducer submenu and press [ENT].
5. Scroll to Clamp-on and press [ENT].
6. Scroll to either Preprogrammed (for the standard transducers) or
Other (for special transducers), and press [ENT].
7. The program also asks for the Wedge Temperature. Scroll to the
Wedge TMP option and press [ENT]. Then use the [S] and [T]
keys to enter the temperature, and press [ENT].
Note: The wedge temperature of the transducer can be
approximated by inputting an average value for the surface
temperature of the outside pipe wall.
8. Do one of the following:
• For preprogrammed transducers, scroll to the desired
Transducer Number (either UTXDR-407 (2 MHz) or UTXDR408 (4 MHz) ) and press [ENT]. Then press [ESC] three times
to return to the PROG menu.
• For other transducers, proceed to Other Transducers on the
next page.
IMPORTANT: Other (special) transducers have no engraved
number on the housing and are rarely used. Examine
the transducer housing carefully for a number.
2-6 Programming Site Data
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