620
Users Manual
8
Caution
For proper calibration, connect the cable
under test directly to the test tool, not
through a patch cable.
Caution
To ensure accurate measurements, make
sure conductive objects, including fingers,
do not come in contact with any of the
connectors while the test tool is measuring
the cable under test.
To calibrate the test tool to the currently selected cable,
perform the following:
1. Connect a good cable of known length, 100 feet (30
m) or longer, to the appropriate test tool conenctor
and turn the rotary switch to TEST, LENGTH, or
WIRE MAP.
Note
If you have just completed the cable selection
process, the test tool should already be i the
calibration setup selection.
2. Press A and then E until the following display
appears.
abm04f.eps
Note
When you select a cable type for which the test
tool has already been calibration, “CAL” will
appear in the second line of the display. To
erase this calibration and use the factory
settings, remove all cables from the test tool,
press
D D
until “YES” is displayed, and
press
E.
3. Press C D until YES is displayed, and then
press E. The test tool takes a few measurements
on the attached cable and displays the measured
length.
abm05f.eps
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