BENNING IT 115
Safety and operating instructions
- 10 -
2.2 Batteries / storage batteries and charger
The installation tester can be operated with six alkaline batteries (type AA) or with rechargeable
NiMh batteries (storage batteries). The specified operating time refers to storage batteries with
a nominal capacity of 2100 mAh. The batteries' state of charge is permanently displayed in the
lower right part of the LC display. If the battery voltage is too low, this will be displayed as
shown in figure 2.1. This indication is shown several seconds before the tester switches off.
Figure 2
.
1: Indication of discharged batteries
The rechargeable NiMh storage batteries will be charged automatically as soon as the charger
is connected with the charging jack of the installation tester. The polarity of the charging jack will
be displayed as shown in figure 2.2. An integrated protective circuit controls the charging
process and ensures an optimum battery lifetime.
+
-
Figure 2
.
2: Polarity of the charging jack
Symbol:
Indication of the storage battery
charging process
Figure 2
.
3: Charging in progress
General warnings:
If the installation tester is connected to an installation, a dangerous voltage might be
applied to the battery compartment! Disconnect all test cables / accessories from the
installation tester and switch the installation tester off before replacing the batteries /
storage batteries and before opening the cover of the battery / fuse compartment!
Please make sure that the batteries / storage batteries are inserted correctly, because
otherwise the installation tester cannot be operated and the storage batteries will
discharge.
Do not recharge alkaline batteries!
Use only the charger included in the delivery!
Notes:
Before the first use! Insert the storage batteries into the battery compartment and charge
the storage batteries for at least 16 hours.
The charger inside the installation tester is a cell pack charger. This means that the
storage batteries are connected in series during charging. For this reason, the storage
batteries must be equivalent (same state of charge, same condition, same type and
same age).
If the installation tester is not used for a longer period of time, remove all storage
batteries from the battery compartment.
Use alkaline batteries or rechargeable NiMh batteries of size AA only! It is recommended
to use storage batteries with a minimum capacity of 2100 mAh.
