3M 965DSP-B RFL Resistance Fault Locate, Separate Pair This is the preferred hookup

RFL (Resistance Fault Locate)

Use this function to locate a Resistance Fault on a pair or on a single conductor.

The function first shows two possible hookups: Separate Pair or Single Pair. Use the [Tab] key to switch between the two hookups.

Separate Pair: (This is the preferred hookup)

You must first use the Resistance function to identify the faulted conductor and a separate good pair (a pair with no faults).

Once you identify the wires, connect the Strap at a ‘far-end’ access point to the same faulted conductor and separate good pair.

Press the RFL key and select “Separate Pair.” Connect the Red test lead to the faulted wire. Connect the Black Lead to the reference. (The reference is the return path for the fault and could be the shield or another wire in the cable.)

Connect the Green and Yellow test leads to the separate good pair.

Press the [Enter] key after you make the above connections.

If there is a problem with the connection, you will see the “Hookup Error” screen on the next page. If the connections are OK, the 965DSP-B will go directly to the “RFL Results” screen.

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