Why won't my Divesoft Liberty helium sensor calibrate?

If you try to calibrate Helium sensor with any success, please try to dry the helium sensors out. Helium sensors are sensitive for moisture condensation. The moisture condenses directly inside the sensor; neither perfect drying of Liberty head does not remove the condensate from the parts inside of the sensors. When the Helium sensor shows Error or not calibrated, it probably needs maintenance.

For the maintenance you will require a 3mm Hex key.

Procedure:

1. Disconnect the power by removing battery jumpers.
2. Remove oxygen cells block by removing 2 screws and pulling out. No component should require excessive force ever!
3. Remove helium sensors by removing screw and proceed to pull by two finger grip.
4. Suck the condensate from both sides using mouth. Never blow into the sensor by mouth or any tools. This could cause even the smallest overpressure of air flow to damage the sensitive membrane inside the sensor. This damage will void any warranty and is not covered. Once moisture is sucked out then leave sensors to dry out in dry, warm place.
5. Once sensors have been left to dry, reinstall to compartment and tighten screws.
6. Re-insert oxygen sell block and tighten both screws.
7. Turn on unit power by inserting jumpers to batteries.
8. Proceed to calibrate helium sensors (Surface mode main menu/Setup/Calibration/Calibrate He-air).

Watch our tutorial video here.