3-11 Instructions for use of automatic power cut-off
1. Automatic power cut-off circuit is set for the instrument. When working time of the instrument
is about 15min, the power is automatically cut off. Then the instrument goes into sleeping
state. In this case, the instrument consumes about 7µA current.
2. If you want to restart the power after power cut-off to the instrument, press the power switch
twice.
IV. MAINTENANCE
This digital universal meter is an electronic precision instrument. Do not change circuits as
desired and note the following aspects:
1. Do not connect to DC voltage more than 1000V or AC effective voltage higher than 750V.
2. Do not connect to the voltage source when the function switch is at Current Shift , Ù
and .
3. Do not use this instrument when the battery is not well connected or its back cover is not
tightly installed.
4. You can only change the battery or fuse when the test pens are removed and power is cut-off.
Battery installation or replacement
This product adopts 9V battery. Refer to Fig. 2, install or replace the battery as per the
following sequence.
a. Shut down this product and remove the test bar at input end.
b. Place the product to make its panel face down; unscrew screws on the battery box cover;
remove the cover and take the battery out.
c. After the new battery is installed, install the battery cover and tighten the screws.
Screw
Battery
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