User Guide

42
DIAGNOSTIC TESTS
The HI8931 and HI943500 controllers are designed with built-in
diagnostic functions to enable the user to check and troubleshoot the
instrument. The checks performed are through the front panel keys and
can be used to isolate the cause of malfunction.
Press the MEASURE key before pro-
ceeding the following tests.
A) Test Offset
Press the TEST OFFSET key and the display should indicate the
following values:
HI8931/HI943500A 0.0 mS ±1.0 mS
HI8931/HI943500B 0.00 mS ±0.10 mS
HI8931/HI943500C 000 µS ±100 µS
HI8931/HI943500D 0.0 µS ±1.0 µS