Transducer Cables; Installing A Flowcell - GE DigitalFlow GS868 Startup Manual

Panametrics steam ultrasonic mass flowmeter

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1.2.6 Transducer Cables

When installing the transducer cables, always observe established standard practices for the installation of electrical

cables. Specifically, 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.

Note: When using non-GE cables to connect the flowmeter transducers to the Model GS868 electronics console, the

cables must have electrical characteristics identical to the GE cables. Type RG 62 a/u coaxial cable should be

used, and each cable must be the same length (within ±4 in.).

A flowcell is the section of pipe where the transducers are mounted. It can be created either by mounting the

transducers on the existing pipeline or by mounting them on a spoolpiece. A spoolpiece is a separately manufactured

pipe section, matched to the existing pipe, which contains ports for mounting the transducers. This approach allows the

transducers to be aligned and calibrated before inserting the spoolpiece into the pipeline.

Figure 1 on page 4 shows a block diagram of a typical Model GS868 system, including optional pressure and

temperature transmitters. For detailed instructions on installing the transducers and/or spoolpiece, refer to the supplied

drawings and the GE Gas Transducer Installation Guide for Ultrasonic Flowmeters.

DigitalFlow™ GS868 Startup Guide

Chapter 1. Installation

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