Page 20 of 130
Operating instructions
4point light 10W (V 4.58)
6 Commissioning
6.1 Power supply
! NOTICE
Reverse polarity at the battery terminals
If batteries are inserted with wrong polarity, the instrument may be damaged. There is
no protection against reverse polarity at the battery terminals.
→
Always insert the batteries with correct polarity!
! NOTICE
Overheating of alkaline cells
An accidental attempt of reloading alkaline cells may lead to overheating and to the
destruction of the instrument. Alkaline cells may explode.
→
If alkaline cells are used, switch off automatic charging
→
Before connecting the instrument to an external power supply, remove
all alkaline cells
The instrument is powered in two different ways:
▪
by internal rechargeable NiMh-batteries or alkaline cells
▪
by external power supply.
By default the instrument is equipped with rechargeable NiMh batteries (4 x 2.8 Ah /
1.2 V). The internal batteries can be exchanged with standard high capacity (>2.500
mAh) NiMh rechargeable batteries, or in emergency cases when no other power supply is
available with AA-alkaline cells.
The external supply should be a voltage source of 10 to 15 V and 1.2 A. As soon as the
instrument is connected to an external power supply, it automatically switches on. The
supply input is proof against wrong polarity.
An automatic charging device is integrated in the instrument. This device allows
recharging the internal batteries by using an external voltage source. For automatic
charging
“Quick charge“ must be activated in the device settings.
➔
8.10 Settings, page 87
