12. Maintenance/repairs/cleaning | 178
12 Maintenance/repairs/cleaning
12.1 Maintenance
Maintenance work may only be carried out by authorized technical personnel
with expert knowledge of the hazards involved and the required precautions.
Maintain and check the device regularly.
The periods must be determined by the operator, but should not exceed
oneyear.
12.2 Repairs
12.2.1 Battery for date/time
The device contains a lithium battery(1) for buffering the date/time chip. This
is located on the main board.
Set the date and time after first turning on the device, see Chapter Date &
time.
The battery is activated when the date and time are set.