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TestPro CV100
User Manual
m. Learn NVP
Nominal velocity of propagation (NVP) is a process used
by handheld testers to determine the length of the cable.
TestPro unit’s Learn NVP feature helps users to determine
the NVP value of a cable by keying in its cable length.
The NVP value can then be used in Certification. To use
Learn NVP tool, connect TestPro main and remote unit
via Channel or Permanent Link adapter to the cable that
needs NVP to be measured.
Open [Cable Certification] and select [Tools].
Select [Learn NVP].
Key in the cable length between 10m and 100m then
select [Ok].
TestPro displays the NVP value of the cable.
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n. Length Test
Length Test using TestPro can determine the length of the
cable based on the NVP value keyed-in. To use Length Test
tool, connect TestPro main and remote unit via Channel or
Permanent Link adapter to the cable that needs NVP to
be measured.
Open [Cable Certification] and select [Tools].
Select [Length Test].
Key in the cable NVP value and then select [Ok].
TestPro displays the length of the cable.
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o. Shield Discontinuity Test
TestPro’s shield discontinuity feature is used to test the
integrity of the shielded cable. If there are issues with the
shield, TestPro will detect it and display the distance to
where the shield issue is located in the wiremap screen.
Set the [Cable] and [Connector] to use Shielded
Cable and Shielded Connector.
Select [Autotest].
Once Autotest is complete, select the Wiremap tab.
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Example above: the total cable length is 34.7 meters
of which TestPro detected shield discontinuity at 2.0
meters away from the main unit and 30.8 meters
away from the TestPro remote unit.