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Measurement Functions 3M™ Dynatel™ Advanced Modular System 965AMS
RFL (Resistance Fault Locate)
Use RFL to nd the distance to a short or ground.
Important Note: You must rst use the Auto test
, or the
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 nd the fault the rst 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 nd 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.
RFL>Hook-Up
There are ten possible scenarios for connecting a 965AMS tester
to use the RFL function:
Tip-Ground Separate Pair
GRN
BLK
YEL
BLU
Ground (Earth)Ground (Earth)
Tip (A) 1/Fault
Tip (A) 1/Fault
Ring (B) 2/Good
Ring (B) 2/Good
Tip (A) 2/Good
Tip (A) 2/Good
Fault
Strap