GE UTX878 Ultrasonic User Manual

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

ix

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

March 2004

Other Transducers 1. The first required parameter is the Frequency. Press [ENT] to

open the Frequency window. Then scroll to the frequency of your
transducer (from 0.25 to 4.00 MHz) and press [ENT].

2. The meter next asks for the Time Delay (Tw). Scroll to the Tw

option and press [ENT]. Then use the arrow keys to enter the time
provided by GE Panametrics (in microseconds), and press [ENT].

3. The next parameter is the Wedge Angle, the angle of the

transducer’s ultrasonic transmission in the transducer wedge.
Scroll to the Wedge Ang option and press [ENT]. Use the arrow
keys to enter the provided angle (in degrees), and press [ENT].

4. T o enter the Wedge Soundspeed, scroll to the Wedge SS option an d

press [ENT]. Use the arrow keys to enter the provided soundspeed
(in m/s or ft/s), and press [ENT].

5. The final parameter is the Temperature Coefficient. Scroll to the

TempCo option and press [ENT]. Use the arrow keys to enter the
provided coefficient, and press [ENT]. Set the coefficient to 0 if
you are unsure of the value.

You have completed entering parameters for other transducers. Press
[ESC] until you reach the PROG menu to continue programming, or
continue pressing [ESC] to resume displaying data.

Programming Site Data 2-7

March 2004

Entering Pipe Parameters

Entering the Pipe Material

In the Pipe submenu, you can specify preprogrammed or special pipe
parameters. While 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.

Note: If you are in the PROG menu, 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 Pipe submenu:

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until PROG is bracketed and press [ENT].

3. Use the [S] and [T] keys to scroll to the desired Channel and

press [ENT].

4. Scroll to the Pipe submenu and press [ENT].

1. The menu offers two options, Material and Lining. Be sure the

Material option is highlighted, and press [ENT].

2. Two other options now appear, Preprogrammed and Other. Scroll

to the desired option, and press [ENT].

3. The menu now varies with your choice in Step 2.

• For preprogrammed materials, a list of materials opens. Table 2-1

on the next page covers the available preprogrammed materials on
the list. Press the [
material. Press [ENT] to confirm the choice.

T] or [S] keys to scroll to the appropriate

• For other materials, the meter asks for the material Soundspeed.

Press [ENT] to open the window. Then use the arrow keys to enter
the known soundspeed, and press [ENT].

2-8 Programming Site Data

March 2004

Entering the Pipe
Material (cont.)

.

Table 2-1: Preprogrammed Pipe Materials

Pipe Material Category Specific Material

Al - Aluminum Rolled or None
Brass None
Cu - Copper Annealed, Rolled or None
CuNi - Copper/Nickel 70% Cu 30% Ni or 90% Cu 10% Ni
Glass Pyrex, Flint, or Crown
Gold Hard-drawn
Inconel None
Iron Armco, Ductile, Cast, Electrolytic
Monel None
Nickel None
Plastic Nylon, Polyethylene, Polyproplene,

PVC (CPVC), or Acrylic
Steel Carbon Steel, Mild or Stainless Steel
Tin Rolled
Titanium None
Tungsten Annealed, Carbide, Drawn
Zinc Rolled

4. The next required parameter is either the outside diameter (OD) or

the circumference (OD x

π). Scroll to the measured parameter and

press [ENT]. For either measurement, enter the desired value and
press [ENT].

Note: Obtain the required information by measuring either the pipe

outside diameter (OD) or circumference at the transducer
installation site. The data may also be obtained fr om standard
pipe size tables found in Sound Speeds and Pipe Size Data
(914-004).

5. The meter also requires the Wall Thickness (WT). Scroll to the WT

option, and press [ENT]. Use the arrow keys to enter the known
thickness, and press [ENT].

Note: To obtain an accurate pipe wall thickness measurement, use

an ultrasonic thickness gauge.

Programming Site Data 2-9

March 2004

Entering the Pipe
Material (cont.)

6. If you have selected certain materials (such as carbon or stainless

steel, cast iron, PVC and CPVC), the UTX878 offers the option of
entering the pipe dimensions by a standardized schedule. (This
option does not appear unless you have selected one of these
materials; if you have, proceed to step a below.) Once you enter
the nominal pipe size and schedule number, the UTX878
determines the OD and wall thickness from an internal table.

a. Scroll to the Schedule option, and press [ENT].

b. A list of pipe sizes opens, from 15 to 200 mm (0.5 to 8 in.).

Scroll to the desired pipe size, and press [ENT].

c. A list of schedules opens. Scroll to the desired schedule, and

press [ENT].

You have finished entering the pipe parameters. Press [ESC] until
you return to the Pipe Material/Lining window, or continue pressing
[ESC] to return to the data display window.

2-10 Programming Site Data

March 2004

Entering Pipe Lining Data

To access the Lining option:

1. From the Pipe submenu, scroll to the Lining option, and press

[ENT].

2. Two options appear, Material and Thickness. Be sure Material is

highlighted, and press [ENT].

3. Two other options now appear, Preprogrammed and Other. Scroll

to the desired option, and press [ENT].

4. The menu now varies with your choice in Step 3.

• For preprogrammed linings, the screen shows a list of Lining

Materials, listed in Table 2-2 below. Scroll to the appropriate
material. If the pipe has no lining, select “None.” Press [ENT] to
confirm the choice.

• For other materials, the next screen asks for the lining Soundspeed.

Press [ENT] to open the soundspeed window. Use the arrow keys
to enter the known soundspeed, and press [ENT].

Table 2-2: Preprogrammed Lining Materials

Lining Material Options

None

Tar/Epoxy

Glass (Pyrex)

Asbestos Cement

Mortar

Rubber

Teflon

Note: If your pipe lining is not on the drop-down list, consult GE

Panametrics for further information.

What’s Next?

You have finished entering data in the Pipe submenu. Do one of the
following:

• To program in other options, press [ESC] until you return to the

PROG menu.

• To program in other menus, refer to Appendix A, Menu Maps, to

navigate to the desired menu.

• To leave the User Program, press [ESC] until the display screen

reappears.

Programming Site Data 2-11

March 2004

Entering Fluid Data The Fluid submenu allows yo u to specify the fluid you are measuring,

as well as the Reynolds Correction factor and tracking windows.
While 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.

Note: If you are in the PROG menu, 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 Fluid 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 Fluid submenu and press [ENT].

Entering Fluid Type 5. Two options appear, Fluid Type and Reynolds. Scroll to Fluid

Type and press [ENT].

6. Two other options appear, Normal and Tracking. Tracking refers

to Tracking Windows, which are used to detect the receive signal
when you are unsure of the fluid sound speed, or when the fluid
sound speed changes drastically under process conditions. Scroll
to the desired option and press [ENT].

7. You can now select between Preprogrammed and Other fluids.

Scroll to the desired option, and press [ENT].

• For Normal fluids, you can program the expected fluid

Temperature. Scroll to the Temperature option and press
[ENT]. Then use the arrow keys to enter the process
temperature, and press [ENT].

• For fluids monitored with a T r acking Window, the meter offers

the selections of Water (up to either 100 or 260°C) or Oil.
Scroll to the desired listing and press [ENT].

2-12 Programming Site Data

March 2004

Entering Fluid Data
(cont.)

8. The menu now varies, depending on your selections in steps 6

and 7.

• If you have selected Preprogrammed fluids, the UTX878 supplies

a list of preprogrammed fluids. As shown in Table 2-3 on the next
page, the list varies, depending on whether you have selected
normal or tracking window fluid types. In either case, scroll to the
desired fluid and press [ENT].

• If you selected Other, the UTX878 asks for the fluid soundspeed

(for Normal fluids) or minimum and maximum soundspeed (for
Tracking Window fluids). In either case, scroll to the soundspeed
option and press [ENT]. Use the arrow keys to enter the
appropriate soundspeed, and press [ENT].

Table 2-3: Preprogrammed Fluid Types

Tracking Windows Off Tracking Windows On

Water (0-260°C) Water (0-100°C)
Sea Water Water (0-260°C)
Oil (22°C) Oil
Crude Oil

Entering Reynolds Correction Data

Lube Oil (X200)
Methanol (20°C)
Ethanol
LN2 (-199°C)
Freon (R-12)
Diesel
Gasoline

9. Press the [ESC] key until you return to the Fluid Type window

discussed in Step 5.

Reynolds Correction is a correction factor based on the Kinematic
Viscosity and flow rate of the fluid. It is necessary, as the velocity of
the fluid measured along a diametrical path must be related to the
total area average velocity over the entire pipe cross-section. This
factor should be ON in most applications, including all those that use
clamp-on transducers. To access Reynolds Correction data:

1. From the Fluid Type window (described in step 5 on the previous

page), scroll to Reynolds and press [ENT].

2. The screen shows three options: Off, Single and Table. Scroll to

the desired option, and press [ENT].

Programming Site Data 2-13

March 2004

Entering Reynolds
Correction Data (cont.)

3. The menu varies, depending on your selection in Step 2.

• If you select Off, no further choices are available.

• If you select Single, the UTX878 will select and automatically

display the Kinematic Viscosity. T o change the value, press [ENT].
Use the arrow keys to change the value (available in document
#914-004, Sound Speeds and Pipe Size Data), and press [ENT].

• If you select Table, the screen displays three options: Units, Rows

Used and Edit Table.

a. If you scroll to Units and press [ENT], the screen displays three

more options: Velocity, Soundspeed and Diagnostic. If you
select either Velocity or Soundspeed and press [ENT], the
screen displays the measurement units (either metric or
English). Press [ESC] or [ENT] to return to the previous
screen. But if you scroll to Diagnostic and press [ENT], the
meter asks for the type of signal to be used, Signal Strength Up
or Signal Strength Dn. Scroll to the appropriate signal, and
press [ENT].

b. If you select Rows Used, the program asks for the number of

rows you wish to use. Enter the desired number (from 2 to 20)

and press [ENT].

c. If you select Edit Table, the table opens with a series of rows.

Scroll to the desired row, and press [ENT].

d. For each row, the screen displays the Reynolds Correction

number (X) and the Kinematic Viscosity (KV). If you wish to
change either value, scroll to the value and press [ENT]. Use
the arrow keys to change the value (available in document
#914-004, Sound Speeds and Pipe Size Data), and press
[ENT].

e. Repeat steps c and d until you have programmed all of your

available data (from 2 to 20 rows).

Press [ESC] until you return to the PROG menu, or continue pressing
[ESC] until the display screen reappears.

2-14 Programming Site Data

March 2004

Entering Path Data In the Path submenu, you can specify and check the path taken by the

transducer signal. Remember to record all programmed data in
Appendix C, Data Records.

Note: If you are in the PROG menu, 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 Path submenu:

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until PROG is bracketed and press [ENT].

3. Use the [S] and [T] keys to scroll to the desired Channel and

press [ENT].

4. Scroll to the Path submenu and press [ENT].

5. The meter first asks for the number of Traverses, or times the

signal crosses the pipe. Press [ENT], scroll to the number of
traverses for your installation, and press [ENT] to confirm the
entry.

Note: The great majority of UTX applications call for two traverses.

Figure 2-5 below illustrates signal paths for a typical two­traverse installation.

Figure 2-5: Signal Paths for a Two-Traverse Installation

6. The remaining prompt displays the Transducer Spacing, as

calculated from the information entered. Use this number to set
the spacing of the transducers. (The minimum spacing is 0.9 in.)
If necessary, you can overwrite the spacing to match the actual
physical spacing of the transducers. Press [ENT] to open the
Spacing window, and use the arrow keys to change the value.
Then press [ENT] to confirm the value.

IMPORTANT: It is recommended that you do not use a spacing

other than the one calculated by the UTX878.
However, if you do use a different spacing, do not
change the spacing by more than ±10% from that
calculated by the UTX878.

Press [ESC] until you return to the PROG menu, or continue pressing
[ESC] until the display screen reappears.

Programming Site Data 2-15

March 2004

Entering Signal Parameters

In the Signal submenu, you can set parameters that affect the
transducer signal:

Caution!

The SIGNAL default settings are suitable for most

applications. Consult GE Panametrics before changing

any of these applications.

• Delta-T Offset

• Zero Cutoff

• Errors Allowed

• Peak Detection Method and Thresholds

• Transmit Sample Size

• Velocity Averaging

While following the programming instructions, refer to Figure A-1 on
page A-1 of Appendix A, Menu Maps.

Note: If you are in the PROG menu, 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 enter the Signal submenu:

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until PROG is bracketed and press [ENT].

3. Use the [S] and [T] keys to scroll to the desired Channel and

press [ENT].

4. Scroll to the Signal option and press [ENT].

5. The first prompt, Delta-T Offset, is the difference between the

upstream and downstream transit times of the transducer signals.
It should normally be set to 0. Press [ENT], use the arrow keys to
enter the new value, and press [ENT] to confirm your entry.

6. The next prompt asks for the Zero Cutoff. Near “zero” flow, the

UTX878 may have fluctuating readings due to small offsets
(caused by factors such as thermal drift in the fluid). The zero
cutoff causes velocity measurements less than the cutoff to be
reported as zero. To set the cutoff, press [ENT], and use the arrow
keys to enter the new value. Press [ENT] to confirm your entry.

2-16 Programming Site Data

March 2004

Entering Signal
Parameters (cont.)

7. The Errors Allowed prompt specifies the number of errors the

UTX878 can record before displaying an error message. Press
[ENT], and use the [S] and [T] keys to scroll to the appropriate
number of errors (from 0 to 16). Press [ENT] to confirm your
entry.

8. The next prompt asks for the Peak Detection method. In the

“Peak” method, the peak is identified by testing a derivative of the
signal. In the “Threshold” method, the peak is identified as the
point where the signal crosses a threshold that is a percentage of
the maximum signal detected. The peak method is more reliable in
identifying the signal in dynamic conditions, while the threshold
method is more reliable in marginal signal conditions.

Note: Do not change the peak detection method or values unless

recommended by GE Panametrics.

a. Press [ENT]. The screen shows the two display options, Peak

and Threshold. Scroll to the desired option, and press [ENT].

b. The next screen depends on your selection in Step a.

• If you select Peak, no further options are available. Press [ESC]

to return to the Signal menu.

• If you select Threshold and press [ENT], the screen shows three

parameters: Min Threshold, Max Threshold and Percent of
Peak. For each parameter, press [ENT]. Use the arrow keys to

enter the new value, and press [ENT].

9. The next parameter is the Transmit Sample Size, the number of

pulses each transducer (upstream and downstream) emits. It is set
to 8 by default. Press [ENT], and use the [S] and [T] keys to
scroll to the new number (from 1 to 32). Press [ENT] to confirm
the entry.

10.The final prompt asks for Velocity Averaging, in which users

select a certain number of velocity measurements to average
together to smooth out noise in the signal. Press [ENT], and use
the [S] and [T] keys to scroll to the desired number. (Selections
include none, 2, 5, 10, 30, 60 and Statistics. The Statistics option
increases averaging under steady flow conditions, but allows for a
rapid response to step changes in flow rate.) Press [ENT] to
confirm your entry .

You have completed entering parameters in the Signal option. Press
[ESC] until you return to the PROG menu, or continue pressing
[ESC] until the display screen reappears.

Programming Site Data 2-17

March 2004

Entering the Meter Correction (K) Factor

With the K Factor submenu, you can calibrate or adjust the UTX878
readings to another flow reference. While following the programming
instructions, refer to Figure A-1 on page A-1 of Appendix A, Menu
Maps.To enter K Factor data:

Note: If you are in the PROG menu, pr oceed directly to S tep 4. If you

scroll to a different option, press [ENT] twice to select that
option (once to enter and again to confirm the selection).

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 K Factor submenu and press [ENT].

5. The screen shows three options: Off, Single and Table. Scroll to

the desired option, and press [ENT].

6. The menu varies, depending on your selection in Step 5.

• If you select Off, no further choices are available.

• If you select Single, the UTX878 displays the K Factor. To change

the value, press [ENT]. Use the arrow keys to change the value and
press [ENT].

IMPORTANT: If you have enabled the Reynolds Correction factor

in the Fluid option, the K factor should be set to 1.00.
Otherwise, the typical factor is between 0.5 and 2.00.

• If you select Table, the screen displays three options: Units, Rows

Used and Edit Table.

a. If you scroll to Units and press [ENT], the screen displays the

selected measurement units (either metric or English). Press
[ESC] or [ENT] to return to the previous screen.

b. If you select Rows Used, the program asks for the number of

rows you wish to use. Enter the desired number (from 2 to 20)

and press [ENT].

c. If you select Edit Table, the table opens with a series of rows.

Scroll to the desired row, and press [ENT].

d. For each row , the screen displays the X (velocity) value and the

K Factor. If you wish to change either value, scroll to the value
and press [ENT]. Use the arrow keys to change the value and
press [ENT].

e. Repeat steps c and d until you have programmed all available

data (from 2 to 20 rows).

Press [ESC] until you return to the PROG menu, or continue pressing
[ESC] until the display screen reappears.

2-18 Programming Site Data

March 2004

Entering Error Limits The Error Limits option enables you to set limits for an incoming

signal. When the signal falls outside the programmed limits, an error
indication appears on the display screen. To set error limits, follow
the steps below.

Note: If you are in the PROG menu, 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).

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until PROG is bracketed in the upper 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 Error Limits option and press [ENT].

5. The first prompt asks for the Minimum Signal limit for the

transducer signal received by the UTX878. The E1:LOW
SIGNAL error message appears if the signal strength falls below
the limit programmed here. Press [ENT]. Use the arrow keys to
change the value and press [ENT].

6. Repeat the steps above for the Maximum Signal limit.

7. The next prompt calls for the Minimum Velocity limit. Press

[ENT]. Use the arrow keys to change the value and press [ENT].

8. Repeat the steps above to change the Maximum Velocity limit.

(The E3: VELOCITY RANGE error message appears if the
velocity falls outside the minimum and maximum limits.)

9. The meter now asks for the Min Amplitude, the lower limit for the

amplitude discriminator. The discriminator measures the size of
the transducer signal sent from the UTX878. If the signal falls
outside these limits, the E5: AMPLITUDE error message appears.
Press [ENT]. Use the arrow keys to change the value and press
[ENT].

10.Repeat these steps for the Max Amplitude, the upper limit for the

discriminator.

11. The next prompt asks for the acceptable limits for the sound

speed, based on conditions in your particular system. The E2:
SOUND SPEED error message appears if the fluid sound speed
exceeds that entered in the Fluid submenu by more than this
percentage. Press [ENT]. Use the arrow keys to change the
percentage and press [ENT].

Programming Site Data 2-19

March 2004

Entering Error Limits
(cont.)

12.The final prompt asks for the acceleration limit for detecting cycle

skipping. The E6: ACCELERATION error message appears if the
velocity changes by more than this limit from one reading to the
next. Press [ENT]. Use the arrow keys to change the value and
press [ENT].

What’s Next? You have finished entering data in the PROG menu. Do one of the

following:

• To program in other menus, refer to Appendix A, Menu Maps, to

navigate to the desired menu.

• T o return to the display screen, press [ESC] until the display screen

reappears.

• To configure the display, proceed to the next chapter.

2-20 Programming Site Data

Chapter 3

Displaying Data

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Setting Up the Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Setting Screen Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

Setting the Number of Screen Views . . . . . . . . . . . . . . . . . . . . . . .3-5

March 2004

Introduction The Model UTX878 flow transmitter includes a Liquid Crystal

Display (LCD) that can display up to two variables simultaneously.
Users can change the number of variables, the displayed
measurements and units, and the contrast level of the LCD.

Setting Up the Display You can configure either of two channels for your particular

requirements. When you first power up the installed UTX878, the
display screen appears similar to Figure 3-1 below.

Ch 1 Velocity

0.0

Meters/sec E1

Figure 3-1: A Typical Display Screen

To change the display screen, press either the [W] or [X] keys. The
screen will highlight one of the parameters, as shown in Fi gu re 3-2
below.

Ch 1 Velocity

0.0

Meters/sec E1

Figure 3-2: Display Screen with Highlighted Parameter

If you press the [X] key, the UTX878 highlights the channel
parameter in the upper left; if you press the [W] key, it highlights the
error code parameter in the lower right. Continue pressing the [W] or
[X] key to reach the desired parameter. When you have highlighted
that parameter, 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).

Displaying Data 3-1

March 2004

Changing the Channel Note: This option is available only for 2-channel versions of the

UTX878.

The first parameter on the screen in the upper left is the Channel
Number. You can change the display to show either of the two

channels, or the average, sum or difference of the channels.

1. When you have highlighted the channel number, press [ENT].

2. The screen displays a list of options:

• Channel 1

• Channel 2

• AVG

• SUM

• DIFF

Changing the Measurement Parameter

Scroll to the desired option, and press [ENT]. The display screen
reappears with the new channel.

The next parameter, in the center, is the measurement parameter
(velocity, volumetric, forward or reverse total, soundspeed and
diagnostic parameters). To change the measurement parameter:

1. Use the [W] or [X] key to highlight the measurement parameter,

and press [ENT].

2. The screen displays a list of parameters:

• Velocity

• Volumetric

• Fwd Total

• Rev Total

• Soundspeed

• Diagnostic

Scroll to the desired parameter, and press [ENT]. The display screen
reappears with the new measurement.

Note: To select a particular diagnostic parameter or unit, select

Diagnostic and proceed to Changing the Measurement Units
on the next page.

3-2 Displaying Data

March 2004

Adjusting the Numeric Display Format

When you highlight the numeric display, you can control both its
positioning and the number of decimal places displayed to the right of
the decimal point.

1. Use the [W] or [X] key to highlight the numeric display, and press

[ENT].

2. The Format window opens, with four options: Width (the width of

the numeric display), Decimal (the number of decimal places),
Min and Max (the respective minimum and maximum values
displayed). Use the [S] or [T] key to scroll to the desired option,
and press [ENT].

3. The menu now varies with your choice in Step 2.

• If you select Width:

The program offers a choice of widths from 0 (least wide) to 8
(widest). Use the [S] and [T] keys to enter the desired width and
press [ENT].

• If you select Decimal:

The program offers a choice of decimal places from 0 (no places) to

4. Use the [S] and [T] keys to enter the desired number of places
and press [ENT].

Changing the Measurement Units

• If you select Min or Max:

The program displays the programmed minimum or maximum value.

4. After making your selection, press [ESC] twice to return to the

display screen with the changed parameter.

In addition to changing the measurement parameter, you can select
(for some parameters) the particular units in which that parameter
will be displayed. (For a list of output measurement units, see Chapter
7, Specifications.)

Note: To choose between metric and English units, refer to

Chapter 4, Configuring Meter Data.

1. Use the [W] or [X] key to highlight the measurement units, and

press [ENT].

2. The screen displays a list of measurement units (or, for

Diagnostic, a list of diagnostic parameters). Scroll to the desired
unit, and press [ENT]. The display screen reappears with the new
measurement units.

3. Press [ESC]. The display screen returns with the changed

measurement unit.

Note: For the velocity and soundspeed parameters, it is not possible

to change the display unit.

Displaying Data 3-3

March 2004

Interpreting the Error Message

The parameter in the lower right corner, represented by E and a
number (E1, E2, etc.) is an error message that signals a particular
problem with the measurement. T o access an explanation of the error ,
use the [W] or [X] key to highlight the error code and press [ENT].
The screen appears similar to Figure 3-3 below.

E1: LOW SIGNAL
Indicates poor
ultrasonic signal
strenght. Check
transducer cable,
programming and
transducer spacing.

Figure 3-3: A Typical Error Message Explanation

Press [ESC] to return to the display screen. For an explanation of all
error codes, refer to Chapter 6, Error Codes and Diagnostics.

3-4 Displaying Data

March 2004

Setting Screen Contrast

Setting the Number of Screen Views

For viewer convenience, you can reset the contrast level of the
display screen. To change the contrast:

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until DISP is bracketed in the upper left corner.

3. The menu highlights the Contrast option. Press [ENT].

4. Use the [S] and [T] keys to enter the desired contrast level from

0 to 100%. (The default value is 30%.) As you scroll, the screen
visibly changes contrast. When you have reached the de sired
contrast level, press [ENT].

Note: The display is visible over the entire UTX878 temperature

range without contrast adjustment.

5. Press [ESC] to return to the User Program, or continue pressing

[ESC] to return to the display screen.

You can also choose to display either one or two measurement
parameters, on the same or different channels. To select the number
of views:

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until DISP is bracketed.

3. Scroll to the Views option, and press [ENT].

4. Scroll to the desired number of views, and press [ENT].

5. Press [ESC] to return to the User Program, or continue pressing

[ESC] to return to the display screen.

Displaying Data 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 RS232 Communication Settings . . . . . . . . . . . . . . . . . . .4-5

Resetting Forward and Reverse Totals . . . . . . . . . . . . . . . . . . . . .4-6

What’s Next?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

March 2004

Introduction The CONFIG menu in the UTX878 User Program enables you to set

global parameters for the meter that suit your individual preferences.
The available parameters include:

• Metric or English units

• 4-20 Loop Settings (low and high values)

• Communication settings

• Resetting totals

To enter the CONFIG menu from the display screen, press [ESC] (to
enter the User Program) and press the [X] key once. While following
the programming instructions, refer to Figure A-2 on page A-2 of
Appendix A, Menu Maps.

Note: If the program is locked, follow the directions on page 2-2 to

unlock the user program.

Entering Global Units In the Units submenu, you can choose to display all measurements in

either metric or English formats.

Note: You cannot choose to display some measurements in English

formats and others in metric.

To access the Units submenu:

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until CONFIG is bracketed and press [ENT].

3. Press [ENT] to enter the Units submenu.

4. Use the [S] and [T] keys to scroll to the desired selection (metric

or English) and press [ENT]. The UTX878 returns to the CONFIG
menu.

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).

Configuring Meter Data 4-1

March 2004

Entering Base (Zero) and Span Output Values

Entering Output Type and Units

The 4-20 Loop submenu enables you to enter the information needed
to set up output parameters: unit type, base (zero) and span values,
and error handling. To enter data in the 4-20 Loop submenu:

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until CONFIG is bracketed and press [ENT].

3. Press [T] to reach the 4-20 Loop submenu, and press [ENT].

1. In the Loop submenu, press [ENT] to enter the Units option.

2. The menu displays five options: Channel 1, Channel 2, AVG,

SUM and DIFF. Use the [S] and [T] keys to scroll to the desired
option, and press [ENT].

Note: Channel 2, AVG, SUM and DIFF are only available for a two-

channel UTX878.

3. The screen now displays three measurement parameters: velocity,

volumetric, and soundspeed. Scroll to the desired selection and
press [ENT].

4. The menu now asks for the unit type.

• For velocity or soundspeed measurements, the menu offers a

single selection (either feet/sec or meters/sec, depending on
your choice of units). Press [ENT] to confirm the entry and
return to the previous menu.

• For volumetric, the menu offers a list of output units (either

metric or English). Scroll to the desired units and press [ENT].

Press [ESC] until you return to the CONFIG menu.

4-2 Configuring Meter Data

March 2004

Entering Base and Span

1. In the Loop option, press [T] and [ENT] to enter the Base option.

Values

2. The Base window opens. Use the arrow keys to enter the desired

base (4 mA) value for the analog output, and press [ENT].

3. The UTX878 returns to the Loop menu. Press [T] and [ENT] to

enter the Span option.

4. The Span window opens. Use the arrow keys to enter the desired

span (20 mA) value for the analog output, and press [ENT].

Entering Error Handling 1. The UTX878 returns to the Loop option. Press [T] and [ENT] to

enter the Error Level option.

2. The screen displays a list of error options as defined in Table 4-1

below and Table 4-2 on the next page. Scroll to the desired option
and press [ENT].

Table 4-1: Error Options and Responses

for a 1-Channel/Path Meter

Option Output Response Totalizer Response

Hold Value Holds the last “good”

reading.

Force HI

(20 mA)

Force LO (4

mA)

Force HH

(22 mA)

Force LL
(3.8 mA)

Force Value Forces the outputs to a

Forces the outputs to the
high set point.

Forces the outputs to the
low set point.

Forces the outputs ≈10%
above the high set point.

Forces the outputs ≈10%
below the low set point.

preprogrammed value.

Holds the last “good”
reading and continues to
totalize, based on that
reading.

Stops totalizing.

Stops totalizing.

Stops totalizing.

Stops totalizing.

Stops totalizing.

• If you select Force Value (as shown in Table 4-1 above), the

meter asks for a specific value. Use the arrow keys to enter the
desired value, and press [ENT].

Configuring Meter Data 4-3

March 2004

Entering Error Handling
(cont.)

Table 4-2: Error Options and Responses

for a 2-Channel/Path Meter

When

Measuring

CH1 or CH2

(vel, vol, etc.)

Response

Holds last
“good”
reading.

SUM Adds two

channels/
paths using
the last“good”
reading.

DIF Subtracts two

channels/
paths using
the last
“good” read­ing.

AVE

Display

Totalizer Response When Error

Handling is

LO, HI, HH, LL,

HOLD

Holds last “good”
reading and con-

Value

Stops

totalizing.
tinues to totalize
based on that
“good” reading.

Holds last “good”
reading and con­tinues to totalize
based on two
channels/paths.

Holds last “good”
reading and con­tinues to totalize
based on two
channels/paths.

See page 2-2.

Stops totaliz-

ing if either or

both channels/

paths go into

error.

Stops totaliz-

ing if either or

both channels/

paths go into

error.

Press [ESC] until you return to the CONFIG menu, or continue
pressing [ESC] until the display screen reappears.

4-4 Configuring Meter Data

March 2004

Entering RS232 Communication Settings

With the Communication submenu, you can set the parameters by
which the UTX878 communicates to a PC or terminal over the RS232
interface. You can set the Node ID as well as the baud rate, parity,
stop bits and data bits. To access the Communication submenu:

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until CONFIG is bracketed and press [ENT].

3. Press the [T] key until Communication is highlighted. Then press

[ENT].

4. The next window offers a selection between Node ID and RS232.

Use the [S] and [T] keys to scroll to the desired option and press
[ENT].

• If you select Node ID:

The meter asks for a specific ID number. Use the arrow keys to
enter the desired number (from 1 to over 255) and press [ENT].

• If you select RS232, a list of six options appears. Scroll to the

desired option and press [ENT].

a. The first option asks for the RS232 Status. Scroll to the desired

selection (ON or OFF), and press [ENT]. (If you are not using
RS232, selecting OFF increases response time at lower power
settings.)

b. The next option asks for the Baud Rate. The available choices

extend from 300 to 115,200 baud. Scroll to the desired
selection and press [ENT].

c. The next option is Parity. Scroll to the desired selection (none,

even, or odd) and press [ENT].

d. The next prompt asks you to select one or two Stop Bits. Scroll

to the desired selection and press [ENT].

e. The next option asks you to select either seven or eight Data

Bits. Scroll to the desired selection and press [ENT].

f. The final option asks for the interface type.Scroll to HyperTer

(for Hyperterminal) and press [ENT].

Press [ESC] twice to return to the CONFIG menu, or continue
pressing [ESC] until the display screen reappears.

Configuring Meter Data 4-5

March 2004

Resetting Forward and Reverse Totals

On occasion, you may need to clear and reset the forward and reverse
totals computed by the Forward and Reverse Totalizers. To reset the
totals:

1. Press [ESC]. The UTX878 enters the User Program.

2. Press the [X] key until CONFIG is bracketed and press [ENT].

3. Press the [T] key until Reset Totals is highlighted. Then press

[ENT].

4. The next window asks you to choose the Channel (1 or 2). Use the

[S] and [T] keys to scroll to the desired channel and press
[ENT].

5. The next screen displays three choices: Reset Fwd Total, Reset

Rev Total or Reset Both. Scroll to the desired choice and press

[ENT].

What’s Next? You have finished entering data in the CONFIG menu. Do one of the

following:

• To program in other menus, refer to Appendix A, Menu Maps, to

navigate to the desired menu.

• T o return to the display screen, press [ESC] until the display screen

reappears.

4-6 Configuring Meter Data

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

March 2004

Introduction In the CALIB menu, you can calibrate and trim the analog outputs and

inputs and check other meter functions. This chapter also covers
updating UTX878 software over the RS232 interface.

Before performing calibration of the UTX878, be sure the following
equipment is available:

• 0-30 VDC, 100 mA variable power supply

• Current meter capable of precisely measuring 4 to 20 mA current

levels

• PC with RS232 Cable and Hyperterminal software (available on

Windows operating systems)

While following the programming instructions, refer to Figure A-3 on
page A-3 of Appendix A, Menu Maps.

Updating UTX878 Instrument Software

1. To set up the RS232, connect one end of a 9-pin RS232 cable to

the COM-1 serial port on a PC and the other end to terminal block
TB4 on the UTX878, as described in Chapter 1, Installation.

2. On your PC, set up the Hyperterminal program.

Note: The use of Hyperterminal is shown her e as an example. If yo u

are using a differ ent communicatio ns software, see its manual
for detailed instructions.

a. From the PC Start Menu, click Programs/Accessories/

Communications/Hyperterminal to open the Hyperterminal

window.

b. If the call is not connected, click on New Connection and enter

a name. Click OK.

c. In the Connect To window, select COM 1 as the desired port.
d. In the Properties window, set the following parameters:

• Bits per second: 19200

• Data bits: 8

• Parity: None.

• Stop Bits: 1

• Flow control: None

Calibration 5-1

March 2004

Updating UTX878
Instrument Software
(cont.)

3. On the UTX878, press and hold the left arrow key ([W]) on the

keypad. Turn the power on, and release the key after about two
seconds. The screen should display Loader vX.XX and a special
message at the bottom:

Load:via Comm?

Y=[ENT], N=[ESC].
Press [ENT] to load the software, or [ESC] to abort the process
and return to the display screen.

4. From the UTX878 FACTO RY menu, scroll to the Upgrade option

and press [ENT] twice.

5. In Hyperterminal, select Transfer, and then Send File. (The

protocol should be Xmodem.) Use Browse to locate the file, which
will have a .cod extension. Double click on this file and click the
Send button.

6. Press [ENT] on the UTX878 keypad. Hyperterminal should

display the status of the transfer. The PC screen should display
"Update Complete".

7. Repeat this procedure for each file that needs to be loaded.

Checking the Meter Software

8. To check that the software has been loaded correctly, proceed to

the next section.

1. Turn power on. The display should boot up with a typical cycling

procedure. After initialization, the display should show Ch 1
Velocity, 0.00, Meters/Sec and EX.

2. To verify which version of software has been loaded:
a. Press [ESC] to enter the User Program.
b. Press the [X] key until FACTORY is highlighted. Scroll to the

Versions option and press [ENT].

c. Press [ENT] again to enter Main. The display should appear

similar to Figure 5-1 below.

2004 GE PANAMETRICS
S/N: A000000
PCI: P000000

b: BOOT.XXX.X
p: BETAX.XXX.X
f: FPGA.XXX.X
X: XML.XXX.X

Figure 5-1: Software Versions Window

5-2 Calibration

March 2004

Trimming 4-20 mA via the Keypad

1. In the User Program, scroll to CAL with 4-20 Loop highlighted.

Press [ENT].

2. Scroll to Mode and press [ENT]. In the Mode window, scroll to

Test[Trim] and press [ENT].

3. Return to the Loop window, and scroll to Percent.

4. In the Percent window , use the arrow keys to set the percentage to

100%. Press [ENT]. Record the value shown on the current meter.

5. Now use the arrow keys to set the percentage to 0%. Press [ENT].

Record the value shown on the current meter.

6. Return to the Loop window, and scroll to Base Trim. Press [ENT].

7. Use the arrow keys to enter the base trim value, the value recorded

in step 5. (The loop current should now be the same as the current
meter. It should read 4.0 +/-0.01 mA.) Press [ENT]

8. Repeat steps 3 and 4.

9. Return to the Loop window, and scroll to Span Trim. Press [ENT].

10.Use the arrow keys to enter the span trim value, the value recorded

in step 4. (The loop current should now be the same as the current
meter. It should read 20.0 +/-0.01 mA.) Press [ENT].

11. Return to the Loop window, and scroll to Mode. Press [ENT].

Scroll to Normal, and press [ENT].

Calibration 5-3

Chapter 6

Error Codes and Diagnostics

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Displaying Diagnostic Parameters. . . . . . . . . . . . . . . . . . . . . . . . .6-4

Fluid and Pipe Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6

Transducer Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8

March 2004

Introduction The Model UTX878 flow transmitter is a reliable, easy to maintain

instrument. When properly installed and operated, as described in
Chapter 1, Installation, the meter provides accurate flow rate
measurements with minimal user intervention. However, if a pr oblem
should arise with the electronics enclosure or transducers, this chapter
explains how to troubleshoot the Model UTX878. Indications of a
possible problem include:

• display of an error message on the LCD screen

• erratic flow readings

• readings of doubtful accuracy (i.e., readings that are not consistent

with readings from another flow measuring device connected to
the same process).

If any of the above conditions occurs, proceed with the instructions
presented in this chapter.

Error Codes If a problem occurs with the electronics or transducers, a built-in error

code message system greatly simplifies the troubleshooting process.
All of the possible UTX878 error code messages are discussed in this

chapter, along with the possible causes and the recommended actions.
When an error code is generated, it will appear in the lower right
corner of the LCD screen, as discussed in Chapter 3.

If an error message appears on the display screen during oper ation of
the Model UTX878, refer to the appropriate section of this chapter for
instructions on how to proceed.

E0: No Error Problem: No error condition currently exists.

Cause: This message appears briefly to confirm that the response

to another error message has corrected the problem.

Action: No action is required.

E1: Low Signal Problem: Poor ultrasonic signal strength or the signal exceeds the

limits entered via the User Program.

Cause: Poor signal strength may be caused by a defective cable,

a flowcell problem, a defective transducer or a problem
in the electronics console. A signal that exceeds the
programmed limits is probably caused by the entry of an
improper value in the Error Limits option of the User
Program.

Action: Using the procedures in Chapter 1, check the components

listed above. Also, check the value entered into the
Signal Strength Error Limits option, as described on page
2-19.

Error Codes and Diagnostics 6-1

March 2004

E2: Sound Speed Error Problem: The sound speed exceeds the limits programmed in the

Error Limits option of the User Program.

Cause: The error may be caused by incorrect programming, poor

flow conditions or poor transducer orientation.

Action: Compare the measured sound speed to tabu lated nominal

values for the process fluid and correct any programming
errors. Refer to the sections on Fluid and Pipe Problems
(page 6-6) and on Transducer Problems (page 6-8) to
correct any problems.

E3: Velocity Range Problem: The velocity exceeds the limits programmed in the Error

Limits option of the User Program.

Cause: This error may be caused by the entry of improper

programming data or by poor flow conditions and/or
excessive turbulence.

Action: Make sure the actual flow rate is within the programmed

limits. Also, check the value entered into the Error Limits
option, as described on page 2-18. Refer to the sections
on Fluid and Pipe Problems (page 6-6) and on
Transducer Problems (page 6-8) to correct any problems.

E4: Signal Quality Problem: The signal quality is outside the limits programmed in the

Error Limits option of the User Program.

Cause: The peak of the upstream or downstream correlation

signals has fallen below the correlation peak limit, as set
in the Error Limits option on page 2-18. This may be
caused by a flowcell or electrical problem.

Action: Check for sources of electrical interference and verify the

integrity of the electronics console by temporarily
substituting a test flowcell that is known to be good.
Check the transducers and relocate them, if necessary.

E5: Amplitude Error Problem: The signal amplitude exceeds the limits programmed in

the Error Limits option of the User Program.

Cause: Solid or gas particulates may be present in the flowcell.

The error could also be caused by poor coupling for
clamp-on transducers.

Action: Refer to the section on Fluid and Pipe Problems (page

6-6) to correct any flowcell problems.

6-2 Error Codes and Diagnostics

March 2004

E6: Cycle Skip, Accel. Problem: The acceleration exceeds the limits programmed in the

Error Limits option of the User Program.

Cause: This condition is usually caused by poor flow conditions

or improper transducer alignment.

Action: Refer to the sections on Fluid and Pipe Problems (page

6-6) and on Transducer Problems (page 6-8) to correct
any problems.

E7: Analog Out Error Problem: The current setting is outside the programmed limits.

Cause: The calculated output value exceeds the programmed

limits.

Action: Verify that the 4-20 loop configuration base and span

settings are correct for your process.

E30: Channel Disabled Problem: The channel is not available.

Cause: The channel has been turned off.

Action: Enter the PROGRAM menu and enable the channel (see

page 2-4).

E31: Invalid Calibration Problem: The calibration is invalid.

Cause: Improper calibration for the application has been entered.

Action: Consult GE Panametrics.

Error Codes and Diagnostics 6-3

March 2004

Displaying Diagnostic Parameters

The Model UTX878 offers built-in Diagnostic Parameters to aid in
the troubleshooting of transducer and/or electrical problems. To
access these parameters, do the following:

1. From the display screen, press [ESC].

Note: If the display screen is locked, you will need to enter [ESC],

[ENT], [ESC] and the security code. Refer to page 2-2 for
details.

2. Press the [X] key. The screen will highlight the channel you wish
to check. Be sure the desired channel appears on the screen (or
change it, as discussed in Chapter 3).

3. Press the [X] key to scroll to the measurement entry in the upper
right. Press [ENT]. Be sure Diagnostic is highlighted, and press
[ENT].

4. Press the [X] key twice to access the units parameter. Press
[ENT]. Scroll to the desired Diagnostic unit (as described in Table
6-1 on the next page) and press [ENT].

5. If desired, repeat steps 1-4 for the other channel.

6-4 Error Codes and Diagnostics

March 2004

Table 6-1: Available Diagnostic Parameters

Option Bar Description Good Bad

Delta-T[ns] Displays the transit time difference

≤1 nsec >1 nsec
between the upstream and downstream
signals.

Amp Up

Amp Dn

T Up [µs]

T Dn [µs]

Gain Up [dB] Displays upstream gain in dB.
Gain Dn [dB] Displays downstream gain in dB.

Displays the value for the signal ampli­tude of the upstream transducer.

Displays the value for the signal ampli­tude of the downstream transducer.

Displays the upstream ultrasonic signal
transit time.

Displays the downstream ultrasonic signal
transit time.

24 ± 5 <19 or >29

24 ± 5 <19 or >29

N.A. N.A.

N.A. N.A.

N.A. N.A.
N.A. N.A.

Signal Up Displays the signal strength for the

50-75 <50 or >75

upstream transducer.

Signal Dn Displays the signal strength for the down-

50-75 <50 or >75

stream transducer.

Thresh Up [%] Displays the value at which the UTX878

-100 - +100 <-100 or >100
detects the signal arrival time for the
upstream transducer.

Thresh Dn [%] Displays the value at which the UTX878

-100 - +100 <-100 or >100
detects the signal arrival time for the
downstream transducer.

Norm Factor Displays the normalization factor. 0.85 - 1.0 <0.85

P# Up

P# Dn

Quality Up

Quality Down

Displays signal peaks for the upstream
transducer.

Displays signal peaks for the downstream
transducer.

Displays the signal quality for the
upstream transducer.

Displays the signal quality for the down­stream transducer.

100-924 <100 or >924

100-924 <100 or >924

≥ 1200 –400 to +400

≥ 1200 –400 to +400

Reynolds # Displays the Reynolds number. N.A. N.A.

k(Re) K factor, based on the Reynolds number. N.A. N.A.

Cycle Time [ms] Time for the reading cycle to complete.

N.A. N.A.

KFactor Meter K calibration factor 0.5-2.0 <0.5 or >2.0

#Errors Number of errors present.

Error Codes and Diagnostics 6-5

0<Programmed

Error Limit

>Programmed Error

Limit

March 2004

Fluid and Pipe Problems

If preliminary troubleshooting with the Error Code Messages and/or
the Diagnostic Parameters indicates a possible problem, proceed
with this section. Measurement problems fall into two categories:

• fluid problems

• pipe problems.

Read the following sections carefully to determine if the problem is
indeed related to the fluid or the pipe. If the instructions in this section
fail to resolve the problem, contact GE Panametrics for assistance.

Fluid Problems Most fluid-related problems result from a failure to observe the

flowmeter system installation instructions, as described in Chapter 1,
Installation. Refer to Chapter 1, Installation, to correct any
installation problems.

If the physical installation of the system meets the recommended
specifications, it is possible that the fluid itself may be preventing
accurate flow rate measurements. The fluid being measured must
meet the following requirements:

1. The fluid must be homogeneous, single-phase, relatively clean and

flowing steadily. Although a low level of entrained particles may

have little effect on the operation of the Model UTX878,
excessive amounts of solid or gas particles will absorb or disperse
the ultrasound signals. This interference with the ultrasound
transmissions through the fluid will cause inaccurate flow rate
measurements. In addition, temperature gradients in the fluid flow
may result in erratic or inaccurate flow rate readings.

2. The fluid must not cavitate near the measurement point. Fluids

with a high vapor pressure may cavitate near the measurement
point. This causes problems resulting from gas bubbles in the
fluid. Cavitation can usually be controlled through proper system
design.

3. The fluid must not excessively attenuate ultrasound signals.

Some fluids, particularly those that are very viscous, readily
absorb ultrasound energy. In such a case, an
message will appear on the display screen to indicate that the
ultrasonic signal strength is insufficient for reliable measurements.

4. The fluid sound speed must not vary excessively.

The Model UTX878 will tolerate relatively large changes in the
fluid sound speed, as may be caused by variations in fluid
composition and/or temperature. However, such changes must
occur slowly. Rapid fluctuations in the fluid sound speed, to a
value that is considerably different from that programmed into the
UTX878, will result in erratic or inaccurate flow rate readings.
Refer to Chapter 2, Programming Site Data, to make sure that the
appropriate sound speed is programmed into the meter.

E1 error code

6-6 Error Codes and Diagnostics

March 2004

Pipe Problems Pipe-related problems may result either from a failure to observe the

installation instructions, as described in Chapter 1, Installation, or
from improper programming of the meter. By far, the most common
pipe problems are the following:

1. The collection of material at the transducer location(s).

Accumulated debris at the transducer location(s) will interfere
with transmission of the ultrasound signals. As a result, accurate
flow rate measurements are not possible. Realignment of the
measurement point or transducers often cures such problems.
Refer to Chapter 1, Installation, for more details on proper
installation practices.

2. Inaccurate pipe measurements.

The accuracy of the flow rate measurements is no better than the
accuracy of the programmed pipe dimensions. Measure the pipe
wall thickness and diameter with the same accuracy desired in the
flow rate readings. Also, check the pipe for dents, eccentricity ,
weld deformity, straightness and other factors that may cause
inaccurate readings. Refer to Chapter 2, Programming Site Data,
for instructions on programming the pipe data.

3. The inside of the pipe must be relatively clean. Excessive build up

of scale, rust or debris will interfere with flow measurement.
Generally, a thin coating or a solid well-adhered build up on the
pipe wall will not cause problems. Loose scale and thick coatings
(such as tar or oil) will interfere with ultrasound transmission and
may result in incorrect or unreliable measurements.

Error Codes and Diagnostics 6-7

March 2004

Transducer Problems Ultrasonic transducers are rugged, reliable devices. However, they

are subject to physical damage from mishandling and chemical
attack. Clamp-on transducers are also subject to installation variables
such as physical misalignment and faulty coupling to the pipe on
which they are mounted.

Because the UTX878 uses clamp-on transducers, the following list
concerns potential clamp-on problems. Contact GE Panametrics if
you cannot solve a transducer-related problem.

Clamp-on Transducer Problems

1. POOR COUPLING TO PIPE: Clamp-on transducers must be in

close contact with the pipe. Make sure the pipe wall is smooth and
generally free of paint. The couplant material must fill voids
between the transducer and the pipe, and must be firmly coupled
or bonded to both the pipe and the transducer. The pipe and
transducer must be clean and dry for permanent couplant, such as
grease or epoxy, to adhere properly. Enough pressure must be
applied to the transducer by its clamp to hold it firmly against the
pipe.

2. MISALIGNMENT: The transducer transmits relatively narrow

beams of ultrasound; therefore; transducer alignment is critical to
assure that the beam can travel from one transducer to the other
without undue attentuation. Be sure to exactly follow the
instructions that came with your transducers and clamping
fixtures. Also, be sure that the actual transducer spacing agrees
with the calculated spacing (S).

3. INTERNAL DAMAGE: Ultrasonic transducers consist of a

ceramic “crystal” bonded to the transducer case. The bond
between the crystal and the case may be damaged by extreme
shock and by temperature extremes. The crystal itself can als o be
damaged by the same conditions. The internal wiring can be
corroded or shorted if contaminants enter the transducer housing.

4. PHYSICAL DAMAGE: Transducers may be physically damaged

by dropping them onto a hard surface or striking them against
another object.

IMPORTANT: Transducers must be replaced in pairs. Refer to

Chapter 2, Programming Site Data, to program the
new transducer data into the meter.

5. CYCLE SKIP CONDITION: A cycle skip is usually caused by a

distorted or altered signal due to poor couplant, bad pipe wall or
unusual fluid disturbances. To resolve a cycle skip, recouple both
transducers with proper couplant. Check your couplant for
temperature ranges. In addition, make sure the pipe wall is free of
paint and rust.

Contact GE Panametrics if you cannot solve a transducer-related
problem.

6-8 Error Codes and Diagnostics

Chapter 7

Specifications

General Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2

T ransducer Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3

Pipe Size and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3

March 2004

General Specifications The general specifications for the Model UTX878 flow transmitter

are divided into the following categories:

Hardware Configuration Channel Options:

Standard: 1-Channel/Path
Optional: 2-Channel/Path (for 2-path averaging).

Enclosure:

Epoxy-coated aluminum, weatherproof, NEMA 4X, IP67

Dimensions:

Weight 3.9 lb (2 kg)
Size (h x w x d) 8.8 x 8.2 x 3.6 in. (220 x 210 x 90 mm)

Environmental Ambient Operating Temperature:

-4° to +140°F (-20° to +60°C)

Storage Temperature:

-40° to +158°F (-20° to +70°C)

Measurement

Volumetric flow, totalized flow, and flow velocity

Parameters

Keypad Six-button external keypad Flow Accuracy

(% of Reading)

Pipe Diameter (ID) > 6 in. (150 mm):

±1% to 2% of reading typical

Pipe Diameter (ID) <

±2% to 5% of reading typical

Note: Accuracy depends on pipe size and whether measurement is

one-path or two-path. Accuracy to ±0.5% of reading may be
achievable with process calibration.

6 in. (150 mm):

Range -40 to +40 ft/s (-12.2 to +12.2 m/s) Rangeability 400:1 Repeatability ±0.1% to 3% of reading

Note: Specifications assume a fully developed flow profile, with a

straight run of pipe 10 diameters upstream and 5 diameters
downstream, and flow velocity greater than 1 ft/s.

Fluid Types Acoustically conductive fluids, including most clean liquids and

many with entrained solids or gas bubbles.

Specifications 7-1

March 2004

Electrical Specifications

The electrical specifications for the Model UTX878 flow transmitter
are divided into the following categories:

Power Requirements 15-30 VDC loop powered, 0.66 W max

Output Drive Capability:

Max. load (ohms) 50 PSV 15–()×[]Rc–=

where PSV = power supply voltage in volts DC
and Rc = cable resistance, 22 AWG cable has 0.04 ohm/ft

For example:
Given a 24-VDC power supply and a 1,000-ft cable (22 AWG,

0.04 ohm/ft),

Rc 1000 ft 0.04 ohm/ft× 40 ohms==

Max. load 50 24 15–()×[]40–=

50 9×[]40–=

= 410 ohms

Power Consumption:

660 mW, depending on the loop voltage and current.

In a loop-powered configuration,

Power Consumption Loop current Input power supply voltage×=

Memory FLASH memory, field-upgradable Operating Mode Correlation Transit-Time™ Mode with clamp-on transducers Input/Output

Specifications

Digital Display:

132 X 64 LCD, configurable to display up to 2 measurement
parameters.

Digital Communications:

Standard: RS232 serial port for PC or terminal.

Analog Output:

4-20 mA on power loop

Cable and Length:

Transducer: 6-ft, 10-ft, 15-ft, 25-ft, 50-ft, 100-ft integral

with transducer

Power: Shielded 2-wire, twisted pair, 24 gauge

Environmental:

System complies with EMC Directive 89/336/EEC, and
wetted transducers comply with PED 97/23/EC for DN<25.

7-2 Specifications

Transducer Specifications

Clamp-on Transducers Temperature Range:

Standard: -40° to 194°F (-40° to 90°C)

Cable Temperature Rating:

-40° to 167°F (-40°C to 75°C)

Frequency:

Standard: 2 MHz, 4 MHz

Mounting:

Fixture with stainless steel strap.

Pipe Size and Materials

Clamp-on Transducers Pipe Materials:

Can clamp to all metals and most plastics. (Consult GE
Panametrics for concrete, composite materials and highly
corroded or lined pipes.)

March 2004

Pipe Sizes:

0.5 to 8 in. (12 mm to 200 mm)

Pipe Wall Thickness:

Up to 3 in. (76 mm)

Area Classifications: Standard general-purpose.

Specifications 7-3

Appendix A

Menu Maps

The UTX878 PROG Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

The UTX878 CONFIG Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

The UTX878 DISP, CAL, USER, SERVICE and FACTORY Menus A-3

Press [ESC] [ENT] [ESC] ( + passcode if locked)

March 2004

Status Transducer

Off

On

Preprogrammed

0.25

Clamp-on

Other

0.50 1.0

Wedge Tmp

Frequency

2.0 4.0

Tw

Wedge Angle
Wedge Soundspeed
TempCo

Preprogrammed

Material

Material

Other

Soundspeed

Pipe

Preprogrammed

None Tar Glass Asbestos

Mortar Rubber Teflon

Lining

Material

Material

Other

Soundspeed

CH1 CH2

Thickness

Fluid Type

PROG

On

Fluid

2-Path Ave.

Off

Path

Traverses

1 2 3 4 5

Signal

Delta T Offset

Spacing

1 2 4 8 16 32

None 2 5 10 30 60 Stat

Reynolds

Zero Cutoff

Errors Allowed
Peak Detection

Peak Threshold

Transmit Sample Size

Velocity Averaging

K Factor

Single Off

K Factor

Table

Units

Velocity

Meters/sec

Rows Used

Number

Number

of Rows

Edit Table

Row 1...
Row X

(Continued on Figure A-2.)

Error Limits

Min Signal
Max Signal
Min Vel
Max Vel

Min Amplitude
Max Amplitude

Soundspeed
Acceleration

Steel

Iron Monel Nickel Plastic Tin Titanium Tungsten Zinc

Brass Copper Glass Gold Inconel Aluminum

OD

WT

π

OD X

Preprogrammed

Water Sea Oil Crude

Lube Meth Eth LN2

Freon Diesel Gasoline

Other

Soundspeed

Temperature

Preprogrammed

Water,

Water,

100

260

Single Off

TrackingNormal

Other

Min Soundspeed

Max Soundspeed

Oil

Reynolds

Velocity

Meters/sec

Table

Units

Soundspeed Diagnostic

Signal Up Signal Dn

Rows Used

Number
of Rows

Edit Table

Figure A-1: The UTX878 PROG Menu

Row 1...
Row X

Menu Maps A-1

Press [ESC] [ENT] [ESC] ( + passcode if locked)

March 2004

(Continued from Figure A-1.)

Units

Metric

English

(English) (Metric)

Ft/sec Meters/sec

Ch 1

Units

Ch 2

(English)

AVG

VolumetricVelocity Soundspeed

(English) (Metric)

Ft/sec Meters/sec

(Metric)

DIFF SUM

CONFIG

4-20 Loop Communication

Base Span

Error Level

Hold Value Force HI

Force HH

Force LL

Force LO

Force Value

Node ID RS232

Baud Rate Parity

Status

ON OFF

None Even Odd

(Continued in Figure A-3.)

Reset Totals

CH1 CH2CH1 CH2

Reset Fwd Reset Rev

Stop Bits

12

Data Bits

78

Reset Both

Protocol

PanaCom

Hyperter

Cuft/hr

Gal/sec

Bar/sec

CuFt/sec

Gal/min

Bar/min

MBar/day

CuFt/min

Gal/hr

Bar/hr

MCuFt/day

MGal/day

Bar/day

Liter/sec

CuM/sec

Liter/min

CuM/min

Liter/hr

CuM/hr

Mliter/day

MCuM/day

300

4800

600

9600

57600

1200

19200 38400

115200

2400

Figure A-2: The UTX878 CONFIG Menu

Menu Maps A-2

(Continued from Figure A-2.)

March 2004

Press [ESC] [ENT] [ESC] ( + passcode if locked)

DISP

Contrast Views

Contrast %

12

Internal Cal Base

Base Value

CAL

4-20 Loop

Span

Span Value

Percent

%

FullLocked

Test/Trim

Test

Mode

USER

Set Security

ProgLocked

Normal

UnLocked

SERVICE

Voltage Adjustment

Default

Yes No

FACTORY

Upgrade

Yes No

Versions

Menu Maps A-3

Figure A-3: The UTX878 DISP, CAL, USER, SERVICE and FACTORY Menus

Appendix B

CE Mark Compliance

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

EMC Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

March 2004

Introduction For CE Mark compliance, the Model UTX878 flow transmitter must

meet the EMC directive.

IMPORTANT: CE Mark compliance is required only for units

intended for use in EEC countries.

EMC Compliance In addition to the standard wiring requirements, the electrical

connections must be shielded and grounded as in T a ble B-1 below for
EMC compliance. After all the necessary electrical connections have
been made, seal any unused cable entry holes.

Note: If the instructions in this appendix are followed, the unit will

comply with the EMC Directive 89/336/EEC.

Table B-1: Wiring Modifications

Termination

Connection Cable Type

Transducer Shielded cable Terminate shield to case

Power Shields, twisted pair Terminate shield to case

Modification

Shielding

Wires enclosed in a properly-grounded metal
conduit do not require additional shielding.

CE Mark Compliance B-1

Appendix C

Data Records

Site Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

March 2004

Site Data After the Model UTX878 flow transmitter has been installed, specific

site data must be entered via the User Program, prior to operation.
Record that information in Table C-1 below.

Table C-1: Site Data

General Information

Model # Serial #

Software Vers. Setup Date

Channelx-Status

Channel 1 Channel 2 (if applicable)

Channel Status

Off

1

On

Channelx-Pipe Parameters

Channel 1 Channel 2 (if applicable)

Trans. Type Cla mp-On Trans. Type Clamp-On

Transducer # Transducer #

Other Transducers Other Transducers

Wedge Temp Wedge Temp

Frequency (Hz) Frequency (Hz)

Tw (µs) Tw (µs)

Wedge Angle (°) Wedge Angle (°)

Wedge Sndspd Wedge Sndspd

Pipe Material Pipe Material

All Clamp-On Transducers All Clamp-On Transducers

Pipe O.D. Pipe O.D.
Pipe Wall Pipe Wall

Path Length (P) Path Length (P)

Axial Length (L) Axial Length (L)

Lining Yes No Lining Yes No

Lining Material Lining Material

Lining Sndspd Lining Sndspd

Lining Thickness Lining Thickness

Track. Window. Yes No Track. Window. Yes No

Fluid Type Fluid Type

Other/Sndspd Other/Sndspd

Reynolds Corr. Off Active Reynolds Corr. Off Active

KV Input Sel. Table Static KV Input Sel. Table Static

Kin. Visc. Kin. Visc.

Cal. Factor Cal. Factor

# of Traverses # of Traverses

Trans. Spacing Trans. Spacing

Channel Status

Off1 On

Data Records C-1

March 2004

Table C-1: Site Data (cont.)

Channelx-Error Limits

Channel 1 Channel 2 (if applicable)

Min. Signal Min. Signal

Max. Signal Max. Signal

Min.Velocity Min.Velocity

Max. Velocity Max. Velocity

Min. Amplitude Min. Amplitude

Max. Amplitude Max. Amplitude

Soundspeed Soundspeed

Acceleration Acceleration

Channelx-Signal

Channel 1 Channel 2 (if applicable)

Delta T Offset Delta T Offset

Zero Cutoff Zero Cutoff

# of Errors # of Errors

Detection Peak Threshold Detection Peak Threshold

Min. Thresh% N/A Min. Thresh% N/A

Max. Thresh% N/A Max. Thresh % N/A

Xmit Sam. Size N/A Xmit Sam. Size N/A

Vel. Averaging Vel. Averaging

Global-CONFIG

System Units English Metric Node ID

4/20 Units Baud Rate

4/20 Base Parity

4/20 Span Stop Bits

Error Level Data Bits

Channelx-Display

Channel 1 Channel 2 (if applicable)

Vol. Units Vol. Units

Totalizer Units T o talizer Units

Channelx- KFACTOR Table

K-Factor Table K-Factor Table

Channel 1 Channel 2 (if applicable)

K-Factor Row # Velocity K Factor K-Factor Row # Velocity K Factor

11
22
33
44
55

C-2 Data Records

March 2004

Table C-1: Site Data (cont.)

Channelx- KFACTOR Table (cont.)

66
77
88

99
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20

Channelx- Reynolds Number Table

Channel 1 Channel 2 (if applicable)

Reynolds Row # Units kRe K-Factor Row # Units kRe

11

22

33

44

55

66

77

88

99
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20

Data Records C-3

Appendix D

Service Record

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Data Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Diagnostic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-3

March 2004

Introduction Whenever any service procedure is performed on the Model UTX878

flow transmitter, the details of the service should be recorded in this
appendix. An accurate service history of the meter can prove very
helpful in troubleshooting any future problems.

Data Entry Record complete and detailed service data for the Model UTX878 in

Table D-1 below. Make additional copies of the table as needed.

Table D-1: Service Record

Date Description of Service Performed By

Service Record D-1

March 2004

Table D-1: Service Record (cont.)

Date Description of Service Performed By

D-2 Service Record

March 2004

Diagnostic Parameters After a successful initial installation of the Model UTX868 and

whenever any system malfunction is noticed, the values for the
diagnostic parameters should be entered in Table D-2 below.

Table D-2: Diagnostic Parameters

Parameter Initial Current Parameter Initial Current

Channel 1 Channel 2

Delta-T[ns] Delta-T[ns]

Amp Up Amp Up

Amp Dn Amp Dn
T Up [µs] T Up [µs]
T Dn [µs] T Dn [µs]

Gain Up [dB] Gain Up [dB]
Gain Dn [dB] Gain Dn [dB]

Signal Up Signal Up
Signal Dn Signal Dn

Thresh Up [%] Thresh Up [%]
Thresh Dn [%] Thresh Dn [%]

Norm Factor Norm Factor

P# Up P# Up
P# Dn P# Dn

Quality Up Quality Up

Quality Down Quality Down

Reynolds # Reynolds #

k(Re) k(Re)

Cycle Time [ms] Cycle Time [ms]

Service Record D-3

Index

March 2004

Symbols

#Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Numerics

4-20 Loop. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4-20 mA, Trimming. . . . . . . . . . . . . . . . . . . . 5-3

A

Acceleration Limit . . . . . . . . . . . . . . . . . . . . 2-20

Amplitude Error - E5 . . . . . . . . . . . . . . . . . . . 6-2

Analog Output Error - E7. . . . . . . . . . . . . . . . 6-3

B

Base Output Value, Entering . . . . . . . . . . . . . 4-2

Base Value, Entering . . . . . . . . . . . . . . . . . . . 4-3

Baud Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

C

CAL Menu . . . . . . . . . . . . . . . . . . . . . . . . . . .A-3

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

CE Mark Compliance. . . . . . . . . . . . . . . . . . .B-1

Channel Disabled

E30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Channel, Changing (in Display). . . . . . . . . . . 3-2

Channel/Path (Status), Activating . . . . . . . . . 2-4

CONFIG Menu. . . . . . . . . . . . . . . . . . . .4-1, A-2

Contrast,Setting . . . . . . . . . . . . . . . . . . . . . . . 3-5

Cycle Skip, Acceleration Error - E6 . . . . . . . 6-3

Cycle Time. . . . . . . . . . . . . . . . . . . . . . . 6-5, D-3

D

Data Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Data Record . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Delta T . . . . . . . . . . . . . . . . . . . . . . . . . .6-5, D-3

Delta-T Offset. . . . . . . . . . . . . . . . . . . . . . . .2-16

Diagnostic Parameters, Displaying. . . . . . . . .6-4

Diagnostics

Service Record . . . . . . . . . . . . . . . . . . . . . D-1

Table of Values . . . . . . . . . . . . . . . . . . . . . D-3

DISP Menu . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Display

Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Display, Adjusting Numeric Format. . . . . . . .3-3

Display, Setting Up. . . . . . . . . . . . . . . . . . . . .3-1

DN +- Peak . . . . . . . . . . . . . . . . . . . . . . .6-5, D-3

DN Amp Disc . . . . . . . . . . . . . . . . . . . . .6-5, D-3

DN Signal Q . . . . . . . . . . . . . . . . . . . . . .6-5, D-3

DN Transit. . . . . . . . . . . . . . . . . . . . . . . .6-5, D-3

Index 1

March 2004

Index (cont.)

E

E0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

E1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

E2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

E3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

E4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

E5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

E6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

E7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

Electrical Connections

CE Mark Compliance. . . . . . . . . . . . . . . . B-1

Electrical Connections, Making . . . . . . . . . . .1-4

Electrical Connections, Preparing . . . . . . . . .1-4

Electrical Specifications . . . . . . . . . . . . . . . . .7-2

Electronics Enclosure, Mounting . . . . . . . . . .1-4

Enclosure Location. . . . . . . . . . . . . . . . . . . . .1-2

Environmental Specifications. . . . . . . . . . . . .7-1

Error Code

E0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

E1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

E2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

E3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

E30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

E31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

E4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

E5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

E6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

E7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

Error Handling, Entering . . . . . . . . . . . . . . . .4-3

Error Level Option . . . . . . . . . . . . . . . . . . . . .4-3

Error Limits, Entering. . . . . . . . . . . . . . . . . .2-19

Error Message, Interpreting . . . . . . . . . . . . . .3-4

Errors Allowed . . . . . . . . . . . . . . . . . . . . . . .2-17

F

FACTORY Menu. . . . . . . . . . . . . . . . . . . . . .A-3

Flow Accuracy. . . . . . . . . . . . . . . . . . . . . . . . 7-1

Flowcell Problems

Fluid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Fluid

Entering Data. . . . . . . . . . . . . . . . . . . . . . 2-12

Physical Requirements . . . . . . . . . . . . . . . 6-6

Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Soundspeed . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Fluid Problems. . . . . . . . . . . . . . . . . . . . . . . . 6-6

Fluid Soundspeed . . . . . . . . . . . . . . . . . . . . 2-13

Fluid Temperature . . . . . . . . . . . . . . . . . . . . 2-12

Fluid Type, Entering . . . . . . . . . . . . . . . . . . 2-12

Fluid Types Measured . . . . . . . . . . . . . . . . . . 7-1

Force Value . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Forward and Reverse Totals, Resetting. . . . . 4-6

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Full Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

G

Gain Dn . . . . . . . . . . . . . . . . . . . . . . . . . 6-5, D-3

Gain Up . . . . . . . . . . . . . . . . . . . . . . . . . 6-5, D-3

H

Hardware Specifications . . . . . . . . . . . . . . . . 7-1

HyperTer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Hyperterminal . . . . . . . . . . . . . . . . . . . . . . . . 5-1

I

Input/Output Specifications . . . . . . . . . . . . . . 7-2

Instrument Software, Updating . . . . . . . .5-1, 5-2

Invalid Calibration

E31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

K

K Factor. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18

K Factor, Entering. . . . . . . . . . . . . . . . . . . . 2-18

K(RE) . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5, D-3

KFactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Kinematic Viscosity, Entering. . . . . . . . . . . 2-14

2 Index

Index (cont.)

March 2004

L

Line Power, Wiring . . . . . . . . . . . . . . . . . . . . 1-5

Lining Soundspeed . . . . . . . . . . . . . . . . . . . . 2-11

Low Signal Error - E1 . . . . . . . . . . . . . . . . . . 6-1

LVD

See CE Mark Compliance . . . . . . . . . . . . .B-1

M

Max Amplitude . . . . . . . . . . . . . . . . . . . . . . 2-19

Maximum Signal . . . . . . . . . . . . . . . . . . . . . 2-19

Maximum Velocity. . . . . . . . . . . . . . . . . . . . 2-19

Measurement Parameter, Changing . . . . . . . . 3-2

Measurement Parameters, Number Shown . . 3-5

Measurement Units, Changing. . . . . . . . . . . . 3-3

Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Meter Correction (K) Factor . . . . . . . . . . . . 2-18

Meter Software, Checking . . . . . . . . . . . . . . . 5-2

Min Amplitude. . . . . . . . . . . . . . . . . . . . . . . 2-19

Minimum Signal. . . . . . . . . . . . . . . . . . . . . . 2-19

Minimum Velocity . . . . . . . . . . . . . . . . . . . . 2-19

P

Parity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Peak Detection . . . . . . . . . . . . . . . . . . . . . . .2 -17

Pipe

Lining . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11

Material. . . . . . . . . . . . . . . . . . . . . . . . 2-8, 2-9

Measurements . . . . . . . . . . . . . . . . . . . . . . .6-7

Problems . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7

Pipe Materials . . . . . . . . . . . . . . . . . . . . . . . . .7-3

Pipe Problems . . . . . . . . . . . . . . . . . . . . . . . . .6-7

Pipe Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3

Pipe Submenu . . . . . . . . . . . . . . . . . . . . . . . . .2-8

Pipe Wall Thickness . . . . . . . . . . . . . . . . . . . .7-3

Pipe, Entering Parameters. . . . . . . . . . . . . . . .2-8

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . .7-2

Problems, Transducers . . . . . . . . . . . . . . . . . .6-8

Prog Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

PROG Menu . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Programming. . . . . . . . . . . . . . . . . . . . . . . . . .2-1

R

N

No Error - E0 . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Node ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Norm Factor. . . . . . . . . . . . . . . . . . . . . . 6-5, D-3

O

Operating Mode . . . . . . . . . . . . . . . . . . . . . . . 7-2

Output Type and Units, Entering . . . . . . . . . . 4-2

Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

Rangeability . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

Repeatability. . . . . . . . . . . . . . . . . . . . . . . . . .7-1

Return Policy . . . . . . . . . . . . . . . . . . . . . . . . .1-v

Reynolds # . . . . . . . . . . . . . . . . . . . . . . .6-5, D-3

Reynolds Correction, Entering Data. . . . . . .2-13

Reynolds Number

Diagnostic . . . . . . . . . . . . . . . . . . . . . .6-5, D-3

RS232 Serial Port, Wiring . . . . . . . . . . . . . . .1-9

Index 3