4.1 Setting an NVP Value
32
4.1.1 Settings for Standard Cable
The most accurate cable length measurements are achieved by
setting the NVP value to match the actual type of cable to be
tested. Before measuring, prepare a standard reference cable
using a known length of exactly the same type as that to be
tested. Calibrate the HiTester according to the following proce-
dure.
We recommend that the standard reference cable
be at least 100 m (382 feet) long.
A shorter length may result in larger measurement
errors due to the inaccurate NVP value obtained.
1.
Prepare a standard reference cable and measure its
actual (physical) length.
(This example shows a 100 m standard reference cable.)
2.
Connect the HiTester to the standard reference cable.
3.
Turn the HiTester on, and hold the
for one second to
display the Settings screen.
4.
Select "Length Adjust" with the
/
keys, and press
the
key.
Model 3665-20 LAN CABLE HiTESTER
Standard Reference Cable (100 m)
SET
SET
www.
.com
information@itm.com
1.800.561.8187