Polimaster PM1904A, Быстрый старт

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Charging PM1904A
To charge PM1904A please connect it to any USB port of a
personal computer or use a wall charger with a USB slot. When the
rechargeable battery is charged, the green light will be on
continuously.
A full charging cycle requires 4 hours. This will provide 2,000 hours
of instrument operation under normal background conditions. The
manufacturer recommends charging PM1904A for 4 hours every
month, to ensure reliable operation of the instrument for at least
1000 hours and to extend the lifetime of the rechargeable battery.
NOTE
If the battery is partially discharged a white-green LED light flashes every 5
seconds.
IMPORTANT!
Once the partial battery discharge begins appearing the instrument will
continue working for 16 hours. When using PM1904A an environment with
background radiation levels higher than 0.1 µSv/h, it is recommended to fully
charge PM1904A before operation.