SS500/SS2000 Analyzer
B–20 4900002285 rev. B 3-25-20
Table B-1 Potential instrument problems and solutions (Continued)
Symptom Response
Null Fail Error
Refer to the Firmware Manual for this
analyzer for instruction on verifying or
clearing a Null Fail Error fault.
Capture diagnostic data and send the
file to SpectraSensors (see “To read
diagnostic data with HyperTermi-
nal” in the Firmware Manual for this
analyzer).
Spectrum Fail Error
Turn off the power to the unit and
check the optical head cables for a
loose connection. Do not disconnect
or reconnect any optical head
cables with the power connected.
Turn the analyzer off for 30 seconds
and then turn it on again.
Reset the peak tracking. Refer to
“Peak Tracking Reset Procedure”
on page B-3.
Capture diagnostic data and send the
file to SpectraSensors (see “To read
diagnostic data with HyperTermi-
nal” in the Firmware Manual for this
analyzer).
P/T Fail Error
Check that the actual pressure in the
measurement cell is within specification
(se
e Appendix A).
Check that the actual temperature in
the measurement cell is within specifi-
cation (see Appendix A).
If the temperature reading is incorrect,
check that the pressure/temperature
cable is tight. Check the connector on
the cell temperature sensor. Check the
temperature connector on the back-
plane board. (Note: A temperature
reading greater than 150 °C indicates a
short circuit on the temperature sensor
leads; a reading of less than –40 °C
indicates an open circuit).
If the pressure reading is incorrect,
check that the pressure/temperature
cable is tight. Check the connector on
the pressure sensor. Check the pres-
sure connector on the backplane board.
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