Battery Charging
It has a built in Lithium Ion rechargeable battery. A standard charger is supplied that the
input voltage is 110V to 240V AC, 50/60Hz, and the output is 5V DC, 500mA. The
charger operating procedure is list below:
1) Plug the Charger into AC socket, the RED indicator on the charger should turned
ON,
2) Plug the USB charging cable to the Charger,
3) Insert the other end of the USB cable to the unit,
4) The battery icon on the LCD blinks to indicate charging in process. Upon charging
complete, the icon stops blinking.
5) The charging time is approx. 3 hours.
The unit could also be charged by connecting the USB cable to the unit and a computer’s
USB port. This has the same effect when charging the unit with the provided adaptor.
Note: When the unit is turned OFF, and plug in the USB charge cable, the LCD will no
show anything, it is NORMAL. Once the unit is turned ON, the battery icon should flash
indicating the unit is in charging mode.
Relative/ Absolute Measurement
Relative Measurement
LCD Icon:
Absolute Measurement
LCD Icon: Blank
Relative and Absolute Mode Switching:
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