Battery Replacement; Troubleshooting - Wohler GS 220 Mode D'emploi

4. Battery replacement

4. Battery replacement
While the Low battery LED is on, it is suggested to always have fresh batteries to
ensure the accuracy.
Open the battery compartment from the meter rear side and replace 4 new AA
alkaline batteries.
Electronical devices may not be put into domestic waste, but must be professio-
nallydisposed according to the directive 2002/96/EG of the Council of the Euro-
pean Union from 27 of january, 2003.

5. Troubleshooting

The meter does not turn on.
Ready LED is not on after 60 seconds
warm up.
6. Indications
1. If silicone vapors absorb onto sensor's surface, the sensor will be coated.
18 Hotline: +49 29 53 / 73 211
a) Make sure the time of pressing
„ON/OFF" key is more than 200 ms.
b) Check the batteries are in place,
good contact and correct polarity.
c) Replace a new battery and try
again.
Check the sensor is in good contact. If
LED is still off, please return the meter
to the dealer for repairing.
Fax: +49 29 53 / 73 250
Wöhler GS 220