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Current Group is the current test group name,
for example Multimeter.
Current Test displays the test being
measured. Here you can switch to another test
from the given list. However, this action will
terminate the ongoing measurement test.
Selected Pair allows you to select a single
wire pair for measurement.
Soak Voltage allows you to apply a voltage
value to the pair(s) currently under test. If your
unit has the HIVOLT (high voltage) software
option configured, the Soak Voltage parameter
values are extended up to 500 V maximum.
Note: Since Soak Voltage is inherited in other tests
that use the Isolation test, the HIVOLT software
option also applies to the following tests: Pair
Detective and User Auto Test.
Minimal Soak Time sets a soak period of time
from 1 to 60 seconds. When the test duration
reaches the Minimal Soak Time, the pass/fail
status is displayed and then periodically
refreshed, until you stop the test.
Threshold Settings button opens a new page
that allows you to set isolation thresholds for
each pair.
Result displays a snapshot of the pass/fail
status, Resistance and a Soak Counter for
each selected wire pair. While running the test,
the counter displays the soak period by the
second, for the wire pair(s) under test.
Test Status displays the current state of
measurement or an error message.
© 2020 Radiodetection Ltd
6100-Cu Multifunction Copper Tester Operation Manual
To select the parameter values:
1. Press the up/down arrow keys to highlight the
desired parameter.
2. Press the left/right arrow keys to view and
select the options.
OR
3. Press
on a value to open a list box of
options or the alphanumeric editor screen and
use the navigation keys to scroll through.
4. Press
to confirm the value.
9.7 Capacitance/Opens
The Capacitance/Opens test measures the electrical
capacitance of the loop and calculates length.
Capacitive balance is also measured when all pairs are
selected.
Snapshot
The Capacitance/Opens test should be run with the
far end open, as electronics and equipment will skew or
change the values. DSL splitters also add some
capacitance and change the values, as do some NIDs
and filtered wall plates.
The test gives you a quick indication of the length, to
help you see if the loop is too short and has an open.
The capacitive balance is key and should typically be
95 % (5 % imbalance) for POTS/internet, and better for
high speed broadband such as VDSL2. If the opens
distance is significantly less than indicated on plant
maps, then the pair may be open at the distance
suggested. (Of course, if the distance matches the
expected length, you are seeing the end.)
Be a bit cautious with capacitance/opens, as wet faults
or physical damage can significantly change the result.
Wetness can provide a path to ground or other pairs
which are then also included in the capacitance value
and not just the pair under test. Opens can usually be
located using a TDR.
To access TDR from Multimeter tests:
1. Press
to return to the Copper Main menu.
2. Highlight TDR and press
menu.
3. Select either Auto TDR or Manual TDR to run
the test. Auto TDR will attempt to locate the
nearest large event/reflection which may or
may not be the open.
TDR can also be run from Pair Detective.
to open the TDR
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