NOVA AND NOVA PRO
Safety and operational considerations
7
2.2.
Batteries
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.
❑
If the instrument is not to be used for a long period of time, remove all batteries from
the battery compartment.
❑
Rechargeable Ni-MH batteries (size AA) can be used. It is recommended only using of
rechargeable batteries with a capacity of 2300mAh or above.
❑
Do not recharge alkaline battery cells!
2.3.
Charging
The batteries will begin charging whenever the power supply adapter is connected to the
instrument. The built-in protection circuits control the charging procedure and assure maximum
battery lifetime. The power supply socket polarity is shown in figure 2.1.
-
+
Note
:
Figure 2.1: Power supply socket polarity
Use only power supply adapter delivered from the manufacturer or distributor of the test
equipment to avoid possible fire or electric shock!
2.4.
Precautions on charging of new battery cells or cells unused for a longer period
Unpredictable chemical processes can occur during the charging of new battery cells or cells
that have been left unused for long periods of time (more than 3 months).
When using an external intelligent battery charger, one complete discharging/charging cycle can
be performed automatically. After performing this procedure, a normal battery capacity should be
fully restored and the operating time of the instrument will approximately meet the data set out in
the in the technical specification.
Notes
:
❑
The charger in the instrument is a pack cell charger. This means that the cells are
connected in series during the charging so all of them must be in similar state
(similarly charged, same type and age).
