DRAMINSKI GMDM Mode D'emploi page 17

Lower battery power is indicated by the words
battery
flashing on the LCD. When such message
is displayed it is not possible to perform any
operations/measurements with the device. A new
battery is required when this indicator appears.
The instrument is powered by Cadmium – Nickel
batteries. Charging is done by using re-charger
12V/100mA.
Charging is carried out as follows:
1. connect the power to the socked 220V
2. connect the plug to the socket (type "small jack")
situated on the back of device
3. after charging disconnect the plug from the
socket and the power from electric network
Charging time is 12-14 hours.
16
low
When fully charged, the battery can work
continuously 15 hours.