6100-Gfast Multifunction Network Analyzer Operation Manual
136
© 2020 Radiodetection Ltd
If the test reports that it cannot detect the strap
when the measured loop resistance is >10 k
Ohms, this may mean:
o
There is no strap connected.
o
There is a strap, but the cable is too
long and has a loop resistance >10 k
Ohms.
o
There is a strap, but there is a high
resistance fault or open in the cable.
o
The connection (leads or strap) may be
faulty.
The resistance test may be used to
troubleshoot this problem.
Fault Status
displays the status of the RFL
test.
Test Status
displays the current state of
measurement or an error message.
14.2 Separate Good Pair
The RFL
Separate Good Pair
or 4-wire test allows you
to determine the distance to a short, ground, or battery
cross on a faulty cable conductor using two separate
good cable conductors.
Connect a strap from the faulted wire to both
conductors of the good pair.
The
connection diagram
shows you how to
connect the cables to the unit.
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
A1/A/B (T1/T/R) at the far end for 4-wire RFL.
The
Confirmation
diagram uses graphic and
textual components.
Proceed
button closes the hookup diagram
prompt and starts the test.
Cancel
button closes the hookup diagram
prompt only.
Note: Unlike 2-wire RFL, G/E on the FED is not
grounded (on the FED side).
Note: Results are more accurate but less forgiving than
a 2-wire setup because the 4-wire setup requires
you to connect the faulted wire conductor to the
Ring (red) jack only.
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
to open the page.
Result
displays the separate good 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).
6100
