SS2100i-1 Gas Analyzer
B–26 4900002224 rev. E 12-18-20
Symptom Response
Pressing keys on front panel do not have
specified effect
Check connections on the keypad
cable.
Not getting enough flow to the sample cell Check both the micro filter and
membrane separator for
contamination. Replace if necessary.
Refer to the SCS Manual for instruction.
Check if supply pressure is sufficient.
LCD does not update. Unit is locked up for
more than 5 minutes
Switch off power, wait 30 seconds, and
then switch power back on.
Current loop is stuck at 4 mA or 20 mA Check display for error message. If
alarm has been triggered, reset the
alarm. Refer to the Firmware Manual
for instruction on resetting alarms.
On the current loop board, check the
voltage between the end of resistor R1
closest to the jumper and ground. If
the concentration reading is high, the
voltage should be near 1 VDC. If the
concentration reading is low, the
voltage should be near 4.7 VDC. If not,
the problem, it is probably the main
electronics assembly board. Refer to
“Service Contact” on page B-27 to
return to the factory for service.
Reading seems to always be high by a
fixed amount or percentage
Refer to the Firmware Manual for
instructions to capture diagnostic data
and submit as instructed by service.
Reading is erratic or seems incorrect Check for contamination in the sample
system, especially if the readings are
much higher than expected.
Refer to the Firmware Manual for
instructions to capture diagnostic data
and submit as instructed by Service.
Reading displays 0.0 or seems relatively
low
Refer to the Firmware Manual for
instructions to capture diagnostic data
and submit as instructed by Service.
Check that Peak Tracking is enabled.
Refer to “To change parameters in
Mode 2”, then “Peak Tracking” in
the firmware operations chapter of the
Firmware manual.
Table B-1 Potential instrument problems and their solutions (Continued)
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