84 1100 Series FD Reference Manual
4 Troubleshooting and Test Functions
Leak Sensor Open
The leak sensor in the detector has failed (open circuit).
The current through the leak sensor is dependent on temperature. A leak is
detected when solvent cools the leak sensor, causing the leak sensor current to
change within defined limits. If the current falls outside the lower limit, the
error message is generated.
Probable Causes
• Leak sensor not connected to the FLM board.
• Defective leak sensor.
Suggested Actions
✔ Ensure the leak sensor is connected correctly.
✔ Exchange the leak sensor.
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