Barkey plasmatherm - General Device Faults; Error Code Reference

Maintenance
6.2 Replacing the battery
The device battery (lithium battery CR 1225, 3 V) must be replaced every 3 years.
CAUTION
Only qualified service personnel and employees of Barkey GmbH & Co. KG may
replace the battery. Please dispose of any batteries properly in accordance with
regulations. The device clock will need to be reset after replacing the battery.