TESTBOY TV 450
Battery and charging
10
2.2 Battery and charging
The instrument uses six AA size alkaline or rechargeable Ni-Cd or 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 figure 2.1. 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 figure 2.2.Internal circuit
controls charging and assures maximum battery lifetime.
+
-
Figure 2.2: Power supply socket polarity
The instrument automatically recognizes the connected power supply adapter and
begins charging.
Symbols:
Indication of battery charging
Figure 2.3: Charging indication
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.
Alkaline or rechargeable Ni-Cd or Ni-MH batteries (size AA) can be used.
TESTBOY recommends only using rechargeable batteries with a capacity of
2100mAh or above.
Do not recharge alkaline battery cells!
Use only power supply adapter delivered from the manufacturer or distributor of
the test equipment to avoid possible fire or electric shock!
