Viavi OneExpert DSL ONX-580, User Manual

Page: 185 / 282

OneExpert DSL User's Guide
22052280, Rev. 015 April 2019
Chapter 13 Copper Testing
185
Measuring resistance and leakage
Using the Multimeter, you can measure resistance to identify shorts,
grounds, and resistive faults.
1. Connect the Tip (A), Ring (B), and Ground (Earth) leads to the
line under test.
2. From the Copper menu, press the Multimeter button.
3. Select the Ω (Omega tab) . The Resistance screen appears
and the test starts running.
In this example, the tests for Tip (T) and Ring (R) and Tip (T)
and Ground (G) are done and the Ring (R) and Ground (G)
test is running continuously. DC and AC Volts are listed for
each test (these values are available on the 580P instrument
only).
4. For greatest accuracy, VIAVI recommends that you
compensate the measurement to remove the effects of the
test leads. To compensate the opens measurements:
• Swipe downward on the screen to access the Tray menu.
• Select the
Compensate Resistance system key.
• Follow the instructions on the screen to connect the black, red, and green leads
and perform test lead compensation.
• Press Compensate . The compensation stops automatically when finished.
5. To change the resistance measurement, press Continuous/Snapshot . The current
selection is a larger text size.
6. Press the Leakage/Non-Leakage button in the lower right.
The Leakage measurement is basically the high-voltage
ohmmeter. The Leakage button enables the standard
Leakage measurement by default. To enable the 250V
Leakage (when available) select Options and then select the
250V Leakage checkbox.
7. To save the results to a report, use the Tray menu.
8. To learn what your results mean, see
“Resistance” in
Chapter 15 “Test Results” .
Measuring resistance and leakage is complete.