3M 965AMS User Manual

Use RFL 

 to find the distance to a short or ground. 

Ohmmeter  , to determine the type of fault. 
1.  There are two types of hook-ups, Separate Pair and Single 

Pair. Separate Pair is more accurate, but it requires hooking 

up more wires. The “Good” wires can be any gauge and any 

length. As an example, the Good wires can be jumper wire. 

Separate Pair is recommended for applications where you 

have a short or ground in an aerial cable or a direct buried 

cable and you want to find the fault the first measurement. 

2.  Single Pair requires that the “Good” wire is the same gauge 

and length as the faulted wire. Single Pair is appropriate for 

situations where you are looking for the fault to be in the 

nearest pedestal.

3.  RFL has the ability to find the distance to a short or ground 

using a single section of cable or a section with multiple 

gauges. Select Single- or Multi-section for your situation.

There are ten possible scenarios for connecting a 965AMS tester 

to use the RFL function:

GRN 

BLK 

YEL 

BLU