Jim Mimlitz

Jim Mimlitz, SCADAmetrics

At times, it’s necessary to splice a meter’s integral signal cable with an extension cable to increase the overall cable length.

For splice hardware, I recommend the UY2 Scotchlok connectors by 3M:  Datasheet Link

For 3-conductor extension cable, I recommend 5521FE cable by Belden (Part No. 5521FE 008 1000): Datasheet Link.  Note that this Belden cable has three (3) solid, 22-gauge, copper conductors with color-coded insulators (RED, BLACK, WHITE), an outer foil shield and a drain wire.  This cable is riser-rated (CMR).  The drain wire should be tied to ground on only one end (preferably the control cabinet end).

For 4-conductor extension cable (for certain Radio-Read Filter applications), I recommend 5522FL cable by Belden (Part No. 5522FL 002 1000): Datasheet Link.  Note that this Belden cable has four (4) solid, 22-gauge, copper conductors with color-coded insulators (RED, BLACK, BLUE, BROWN), an outer foil shield and a drain wire.  This cable is riser-rated (FPLR). The drain wire should be tied to ground on only one end (preferably the control cabinet end).

An alternate 4-conductor extension cable that features stranded conductors (for certain Radio-Read Filter applications) is the 5502FE cable by Belden (Part No. 5502FE 008 1000): Datasheet Link.  Note that this Belden cable has four (4) stranded, 22-gauge, copper conductors with color-coded insulators (RED, GREEN,BLACK,WHITE ), an outer foil shield and a drain wire.  This cable is riser-rated (CMR). The drain wire should be tied to ground on only one end (preferably the control cabinet end).  However, keep in mind that the other solid conductor-type cable will likely work better with Scotchlok splicers.

All of the above hardware may be purchased from Newark Electronics or other electronic supply vendors.

Jim Mimlitz

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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