49
4 Power supply
4.2.2
Rechargeable battery maintenance
If the device is not used for a long period of time, it is advisable
to fully discharge the battery before recharging it again.
A full discharging and recharging process takes approx. 11 hours
(8 hours to dis 3 hours to recharge). The duration de
-
pends on the capacity of the rechargeable batteries used.
A
DANGER! Risk of explosion from sparks
High charging amperage occurs when charging batteries
in explosive areas.
The mains adapter is not explosion proof.
●
Only ever charge the device outside of explosive areas.
● Connect the device (switched on) to the power supply via the
side connection
OR
Place the device (switched on) into the docking station.
The rechargeable batteries will be fully discharged. Once the
device has been discharged, it will automatically switch to
charging mode.
4.3
Battery alarm
As soon as the remaining capacity of the batteries gets low, a
battery alarm will go off:
Level 1:
Battery almost empty
–
Battery capacity
symbol flashes
–
Audible signal (one-off)
– Operating signal doubles
– Remaining operating time: approx. 15 min
Level 2:
Battery empty
– Blank display apart from
Battery capacity
sym-
bol
– Continuous audible signal
– Measuring mode unavailable
–
Device shuts off