41
Maintenance
Replacing the Batteries /
Rechargeable Batteries
Switching off the device:
● Keep the key and the key
depressed at the same time.
1 Loosen the screw (2.5 mm hexagon
socket) on the power pack and remove
the power pack.
2 Replace the alkaline batteries with new
ones or rechargeable NiMHy batteries
with charged ones – ensure correct
polarity.
3 Completely replace the power pack T4
(with sealed rechargeable batteries,
order no. 83 18 704).
● Insert the power pack into the device and
tighten the screw.
After replacing the power pack T4, it is
recommended that a complete charging is
carried out.
After batteries have been replaced:
— The settings and data are stored when
the battery is replaced.
The sensors warm up again.
CAUTION:
Do not replace the batteries / rechargeable batteries in hazardous areas. Danger of
explosion!
Batteries / rechargeable batteries are part of the Ex approval. Only the following types
may be used:
Alkaline batteries – T4 – (not rechargeable!)
Energizer No. E91, Energizer No. EN91 (Industrial), Varta Type 4106 (power one)
NiMHy rechargeable batteries – T3 – (rechargeable)
GP 180AAHC (1800) max. 40
o
C ambient temperature.
Caution:
Do not throw used batteries into fire or
try to open them by force. Danger of
explosion!
Dispose of the batteries in accordance
with local regulations.
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