Fluke 990DSL, User Manual

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990DSL
Users Guide
3-20
Performing Basic Operations
This section shows you how to perform basic CopperPro operations so that
you can quickly get started using the tester. Read this section before you run
any tests.
Calibrating the CopperPro
To ensure maximum accuracy of test results, you should calibrate the
CopperPro at the start of the day, whenever a significant temperature change
occurs, or before you make extremely critical measurements.
The Zero Leads utility is a test lead calibration function that allows the
CopperPro to compensate for test lead resistance and capacitance in
subsequent Resistance Fault, RFL, and Opens measurements. The constants
generated from this test are stored in non-volatile memory and are retained
even after you turn off the tester.
To calibrate the CopperPro, complete the following:
1. Press
>
then
O
to display the
USER OPTIONS
menu (Figure 3-4).
2. Select
Zero Leads
. Press
L
.
3. As instructed, connect the Pair 1 and Ground test leads together, then
press
K
.
4. When prompted, disconnect the test leads, then press
K
.
If no faults are detected, a “ Zero Leads Completed ” message is displayed.
If a problem with measurement values is detected, an error message
describing the problem is displayed.