Troubleshooting
A01-92-4 A .ver 97020-00094
–11
Null Fail Verify Null Fail fault by pressing the #
key followed by the 4 key and checking
the zero reading is outside the range of
-50 to 50. If not, the Null Fail fault is
spurious. Return to Mode 1 by press-
ing the # key followed by the 1 key
and see if the fault has changed.
Capture diagnostic data and send the
file to SpectraSensors (see “To read
diagnostic data with HyperTermi-
nal” on page 4-4).
Table A–2 Potential instrument problems and solutions (Continued).
Symptom Response
UK Distibution by IMA Ltd Tel: +44 (0)1943 878877 Email: info@ima.co.uk Web: www.ima.co.uk
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