Troubleshooting and Test Functions 4
1100 Series FD Reference Manual 87
Compensation Sensor Short
The ambient-compensation sensor (NTC) on the FLM board in the detector has
failed (short circuit).
The resistance across the temperature compensation sensor (NTC) on the FLM
board is dependent on ambient temperature. The change in resistance is used
by the leak circuit to compensate for ambient temperature changes. If the
resistance across the sensor falls below the lower limit, the error message is
generated.
Probable Causes
• Defective FLF board.
Suggested Actions
✔ Exchange the FLF board.
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