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Note:
When battery voltage < 7.2V, the LCD displays “ ”
(undervoltage) symbol. When the user uses the
backlight, the battery voltage drops below 7.2 V, due to
high working current. The “ ”symbol may appear, and
measurement accuracy is not guaranteed. Contimue
to use the meter normally without using backlight.
Do not replace the battery until “ ” symbol shows
under normal cnditions.
4.8 Automatic Power-Off
1) If there is no operation during any 15 minutes after
turning the machine on, the meter will enter
suspended state, automatically powering off to save
the battery. Within 1 minute before shutdown, buzzer
will sound five times. The meter will then enter a
dormant state.
2) After automatic power-off, press FUNC key, the
meter will turn on again.
3) If the user holds “FUNC” key when powering on, it
will cancel automatic power-off function.
4.9 Measurement Preparation
1) Turn the transfer switch to turn on the power. When
battery voltage is low (about<7.2V), LCD displays
“ ” symbol, Replace the battery.
2) “ ” symbol means that input voltage or current
should not be more than the specified value, which
is to protect the internal line from damage.
3) Place transfer switch to required measuring function
and range.
4) When connecting line, first connect the common
test line, then connect charged test line. When
removing line, remove charged test line first.
4.10 Current Measurement
Electric shock hazard.
Remove the probe from the meter before
measuring with current clamp.
Warning
1) Measuring switch is placed to position A. At this time,
the meter is in AC current measurement state.
Choose appropriate measuring range.
2) Hold the trigger, open clamp head, clip one lead of
measurement circuit to be tested in the clamp.
3) Read the current value on the LCD display.
Note:
1) Clamping two or more leads of circuit to be tested
simultaneously will not get the correct measuring
results.
2) To get accurate reading, connect the lead to be
tested at the center of current clamp.
3) “ ”indicates that maximum input AC current is 1000 A.
DIGITAL CLAMP METER DIGITAL CLAMP METER
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