SEFRAM 7803B Manuel D'utilisation page 17

The ON/OFF button
Battery
The instrument can be left and operate on its own as it is equipped with 8 Nickel Metal Hydride
(NiMH) rechargeable batteries, 1.2V, 1,700 mAh ensuring a standard operation during 3 hours.
When the instrument is switched on and operated with batteries, a graphic indicator gives the
charge level of the battery.
The autonomy of the instrument depends on the display backlight and the automatic power off
mode (after 10 minutes without any operation).
In order to have a better autonomy, it should be necessary to change these parameters you will
find in the Configuration menu by pressing the key
The rechargeable batteries are supposed to be charging as soon as the instrument is connected
to the mains supply, whether it is switched on or not.
This low-speed charging lasts about 16 hours.
An external charger/main adapter can also power the instrument.
recommended to perform these 4 cycles for the 4 first uses.
discharge them before charging them again.
If you need to change the batteries, you MUST change all of them at the same time
and use only fully identical batteries (same type and capacity).
External power supply
An external mains supply adapter delivered with it and which can also be used to charge the
battery can power the instrument.
Use only the external mains supply adapter delivered with the instrument.
OPERATING THE INSTRUMENT
POWER SUPPLY
allows you to switch on and switch off the instrument.
The batteries reach their full capacity after 4 cycles of charge / discharge. It is
To get the best performance from your batteries it is then recommended to fully
Never use alkaline batteries instead of the
rechargeable batteries.
– 7802/3/4 –
(Double press).
p. 17