55
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
RFL (Resistance Fault Locate)
Use
RFL
to find the distance to a short or ground.
Important Note: You must first 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 more
wires to hook-up. 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.
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.
RFL>
Hook-Up
There are ten possible scenarios for connecting a 965AMS to
use the RFL function:
Ring-Cross Separate Pair
&AULT
2%$
'2.
9%,
",5
2ING&AULT
2ING&AULT
3TRAP
'ROUND
'ROUND
2ING'OOD
2ING'OOD
4IP'OOD
4IP'OOD
Dynatel 965AMS-BT.indd 55
6/21/06 10:48:18 AM
