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11. Power source
This unit is powered by 2 alkaline dry cells of 1.5V LR03 (size AAA).
When the batteries become exhausted, the
mark will appear on the display.
The normal life of the cell is 90 hours. If not in use, turn off the power.
11.1 Change the battery
The two AAA alkaline dry cells are housed in the back of the display unit.
When the batteries are replaced with new ones, make sure the display shows the initial screen display and
changes to Main (measurement) display.
If it does not display as shown above, check if all of the dry cells are replaced or loaded in the correct
direction.
•
Remedy for alarm
When
turns on, immediately stop measuring and turn off the power. Then, change the cells.
•
Procedure to change the cells
Turn off the power first, and then replace all of the cells. Use the same kind of cells when replacing
them.
Caution:
Do not use other battery than alkaline AAA dry cell, e.g. NiCd dry cell.
Cautions:
1.
Always remove the batteries if the unit is not going to be used for a month or more. Otherwise, the
batteries left in the unit may leak and cause damage.
2.
The measurement data and parameters are stored in non-volatile memory. These data will not be
erased even when the batteries are removed.
11.2 Auto Power Off
This function turns off the power of the unit when no key is pressed for 15 minutes after turning on the
unit.
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