1. Check the max. storage of the tank, eg. 220 litre water.
2. Locate the tank and unscrew the level gauge.
3. Put the swimmer to the min. position and check the readout on the panel.
4. If the readout is different from 0 litres, adjust with a screwdriver on min. adjust until the readout is correct.
5. Put the swimmer to the max. position and check the readout on the panel.
6. If the readout is different from the max. storage of the tank (eg. 220 litres), adjust with a screwdriver on max. adjust until the readout is correct.
7. Check item 3-6 again, until the settings are correct.
8. The level gauge is now calibrated.

Print for level gauges X-442, X-482, X-612