12
Charging PM1904
To charge
PM1904
please connect it to any USb port of a personal
computer or use a wall charger with a USb slot. When the battery
is charged, the Green light is always on.
a full charging cycle requires 4 hours. This will provide 2200 hours
of the instrument operation under normal background conditions.
The Manufacturer recommends charging
PM1904
for 4 hours
every month, to ensure reliable operation of the instrument for at
least 1000 hours and to extend lifetime of the battery.
NOTE!
If the battery is partially discharged an orange LED light flashes every
5 seconds.
IMPORTANT!
After partial battery discharge indication appearing the instrument
keeps working for 16 hours. Using PM1904 in the environment with
radiation background higher than 0.1 mSv/h it is recommended to
charge fully PM1904 before operation.
