Fault Screen: "Level Sensor" Fault

This fault display means that at the end of the extraction, the level sensor detected solvent in the vessel. (At the end of the run, the vessel should be empty, and the sensor should not detect solvent.)

Possible Causes:

Note: The instrument has either a Teflon Level Sensor or a Glass Tip Level Sensor

Teflon Level Sensor:

The Teflon Level Sensor may need to be replaced. Observe the Teflon Sensor. It should have a green light (power on, vessel empty) and a red light (power on, vessel full). The red light should not be on at the end of a run. If it frequently indicates red at the end of a run, it will need to be replaced. When contacting ANKOM for replacement assistance it would be helpful to know the Instrument Serial #.

The Teflon Level Sensor may need to reset itself. When the vessel is hot, sometimes it takes the Teflon Sensor a few minutes to reset. If this happens frequently it should be replaced with a Fiber Optic Level Sensor upgrade.. For Instruments with a "D Slot," see XT15 Service Procedure #9 or for Instruments without a "D Slot," see XT15 Service Procedure #10.

Glass Tip Level Sensor:

The Glass Tip Level Sensor may need to be retrained. Open the vessel and observe the solvent level. If the Glass Level Sensor is covered with solvent the Level Sensor Module light (inside the electrical cabinet) should be off. If the glass sensor tip is NOT covered with solvent and the module light is off, the level sensor needs to be re-trained see XT15 Service Procedure #13 or replaced. See XT15 Service Procedure #11.