Transducer Cables; Installing A Flowcell - GE DigitalFlow DF868 Startup Manual

1.3.6 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 flow transducers to the Model DF868 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.).

1.4 Installing a Flowcell

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 shows a diagram of a typical Model DF868 system. For detailed instructions on installing the transducers
and/or spoolpiece, refer to the supplied drawings and the GE Liquid Transducer Installation Guide (916-055).
DigitalFlow™ Multipurpose Ultrasonic Liquid Flowmeter Startup Guide (1- and 2-Channel)
Figure 1: A Typical Model DF868 System
Chapter 1. Installation
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