Jim Mimlitz, SCADAmetrics

Whether connecting an encoder-type water meter to an EtherMeter, a Signalizer, TheMeterDisplay, or an AMI/AMR Endpoint — if the cable length is expected to exceed 10 feet — then SCADAmetrics highly recommends the use of shielded instrumentation cable.

Also, if the water meter, instrumentation, and/or cabling is installed in the vicinity of electrically noisy equipment, such as motors, welders, or variable-frequency drives, the use of shielded cables is especially recommended!

General Cable C2526A or Belden 8771 are excellent cables for this purpose.

General Cable C2526A or Belden 8771 – Shielded Cable for Encoder-Type Water Meters

Both utilize 22 gauge conductors plus an overall foil shield; and both feature three (3) color-coded stranded conductors (red, black, white), plus a drain wire.

In order to achieve maximum benefits when utilizing shielded cable, it is important to ground the drain wire at one point only — preferably within the control panel.

About Jim Mimlitz

Licensed Professional Electrical Engineer @ SCADAmetrics. Specialties: Connecting Flow Meters with SCADA, Telemetry, and Building Automation Systems. Electronic Circuit Design, Software Development.

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