3M 965DPS Modem User Manual


 
58
RFL (Resistance Fault Locate)
Use this function to locate a Resistance Fault on a
pair or on a single conductor.
There are two possible hookups: Separate Pair or
Single Pair. Use [Tab] to switch between the two
hookups.
Separate Pair (This is the preferred hookup
)
You must first use the Resistance function to
determine the faulted conductor and identify a
separate good pair (a pair with no faults).
Once you identify the wires, connect the shorting
strap at the ‘far-end’ with the common (red) clip to the
faulted conductor and the black clips to the two wires
of the separate good pair.
Press the [RFL] key and select “Separate Pair” by
pressing the [Tab] key.
The hookup screen will show the last selected wire
gauge and temperature. Use the [Setup] key to
change the gauge, temperature, or to enter a known
distance to Strap.
Note: Either the temperature or length (distance
to Strap) must be selected as unknown. Enter the
pound (#) sign as the unknown.