chargeable battery operation, the remaining battery life is 2-4
hours max.!
In this case, the batteries need to be replaced.
2.3 Power Supply
Remove the battery cover by pulling it downward.
Figure 2.7: Open battery compartment
The device can be operated with 4 batteries or (Mignon 1.5V)
rechargeable batteries (Mignon 1.2V).
The polarity of the batteries is indicated at the bottom of the bat-
tery compartment (see. Figure 2.7).
Whenever you turn on the device, you will be informed about
the status of the batteries: The voltage can be viewed on the
menu Parameter/Power supply.
Note:
The RAM which stores the measured values, settings and the
date is regularly supplied with power by a lithium backup battery
when the device is not powered via the mains or batter-
ies/rechargeable batteries. In order to avoid loss of data, we
recommend replacing the lithium battery while the unit is pow-
ered via the mains or batteries/rechargeable batteries. The lithi-
um battery is located on the motherboard and should be re-
placed only by trained personnel.
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