Handheld Optical Light Source-JW3116
7
5-1
There are 5 Grades for the battery power indication
：
left 70%
～
100% electricity
left 40%
～
70% electricity
left 30%
～
40% electricity
left 20%
～
30% electricity
。
not enough electricity, left less than 20%
，
the power meter will be forced power off.
Fit the battery
，
refer to below figure 5-2
5-2
Press the clip fastener on the battery compartment cover down. Remove the battery compartment cover,
remove all three batteries making a note of their positive and negative connector orientation. The
negative battery connector should be against the spring. Insert 3 new 1.5VV AA battery. Refit the battery
compartment cover. The clip fastener should click shut.
Notice
：
Make sure that you insert the batteries with their positive and negative
connectors correctly aligned.
5.1.2 Power Supply Unit
When the battery is used out, can use the power supply unit, and at this time on the left top of the
screen, there will be a
(5-3)
。
When the battery in the power meter, and still have enough
electricity, the tester will choose AC power supply as the priority.
Battery Power indicate
