Rfl; Single Pair - SPX RADIODETECTION 6100-Cu Operation Manual

Resistance fault locator (RFL) testing is a powerful
means to locate resistive faults such as shorts,
grounds, and battery crosses.
Before performing RFL tests, install the strap(s) at the
other end of the cable. Use of an oscillator or toner as a
far end strap is not recommended as it will induce
errors. RFL consists of 3 tests: Single Pair, Separate
Good Pair, and Küpfmüller Test (K-Test).

14.1 Single Pair

The RFL Single Pair or 2-wire test allows you to locate
resistive faults between tip and ground, or ring and
ground. By default, the unit assumes that the fault
cable is connected to ring.
Connect the strap to the far end of the wires connected
to T/A and R/B.

The connection diagram shows you how to
connect the cables to the unit. The green lead
is used as reference.

When FED is Enabled on the FED Setup
page, the Confirmation window pops up
displaying how to connect your cables at the
beginning of the test. The FED allows you to
remotely place a strap (to short together) the T-
R/A-B pair at the far end for 2-wire RFL.

The Confirmation diagram uses graphic and
textual components.
© 2020 Radiodetection Ltd

RFL

6100-Cu Multifunction Copper Tester Operation Manual
o
Proceed button closes the hookup
diagram prompt and starts the test.
o
Cancel button closes the hookup
diagram prompt only.
Note: Results are less accurate than a separate good
pair setup.

Current Test displays the test being
measured. When FED is Enabled, the FED
icon and numeric state are displayed beside
the Current Test.

Cable Setup button opens a new page that
allows you to set the cable parameters for the
Current Test. Press

Result displays single pair RFL test results.
Based on the cable condition, corresponding
values are added into the diagram at their
specific positions. Test result units are
dependent on Standard in Setup/Application
Settings.
o
Distance to strap (DTS).
o
Resistance to strap (RTS).
o
Distance from fault to strap (DFTS).
o
Resistance from fault to strap (RFTS).
o
Resistance to fault (RTF).
o
Distance to fault (DTF).
o
Faulted cable (FC).
o
Resistance at fault (Rf) is resistance
from the fault to the resistance wire.
o
Voltage at fault (Vf).

If the test reports that it cannot detect the strap
when the measured loop resistance is >10 k
Ohms, this may mean:
to open the page.
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