Hanna Instruments HI 943500A - Manual (Page 22)

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B) Test Slope
Press the "TEST SLOPE" key and the display should indicate the
following values:
HI 8931/HI 943500A 100.0 mS ±35.0 mS
HI 8931/HI 943500B 10.00 mS ±3.50 mS
HI 8931/HI 943500C 1000 μS ±350 μS
HI 8931/HI 943500D 100.0 μS ±35.0 μS
Note: The reading obtained by these functions will vary if the OFFSET
and SLOPE trimmers on the front panel are adjusted.
DIAGNOSTIC TESTS
The HI 8931 and HI 943500 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:
HI 8931/HI 943500A 0.0 mS ±1.0 mS
HI 8931/HI 943500B 0.00 mS ±0.10 mS
HI 8931/HI 943500C 000 μS ±100 μS
HI 8931/HI 943500D 0.0 μS ±1.0 μS