MI 3110 EurotestIM
Safety and operational considerations
8
2.2 Battery and charging
The instrument uses six AA size alkaline or rechargeable Ni-MH battery cells. Nominal
operating time is declared for cells with nominal capacity of 2100 mAh. Battery condition
is always displayed in the lower right display part. In case the battery is too weak the
instrument indicates this as shown in
. This indication appears for a few
seconds and then the instrument turns itself off.
Figure 2.1: Discharged battery indication
The battery is charged whenever the power supply adapter is connected to the
instrument. The power supply socket polarity is shown in
. Internal circuit
controls charging and assures maximum battery lifetime.
+
-
Figure 2.2: Power supply socket polarity
Symbols:
Indication of battery charging
Figure 2.3: Charging indication
Warnings related to safety:
❑
When connected to an installation, the instruments battery compartment can
contain hazardous voltage inside! When replacing battery cells or before
opening the battery/fuse compartment cover, disconnect any measuring
accessory connected to the instrument and turn off the instrument,
❑
Ensure that the battery cells are inserted correctly otherwise the instrument will
not operate and the batteries could be discharged.
❑
Do not recharge alkaline battery cells!
❑
Use only power supply adapter delivered from the manufacturer or distributor of
the test equipment!
Notes:
❑
The charger in the instrument is a pack cell charger. This means that the battery
cells are connected in series during the charging. The battery cells have to be
equivalent (same charge condition, same type and age).
