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DCM3000
1) For using the maximum/minimum value measurement mode, the manual range mode must be
active.
4.4 Function Switch
1) In the voltage mode, press "FUNC" button for changing to DC or AC current type.
4.5 REL Measurement
1) REL button is relative value Measurement button. The current display value can be stored in the
memory as reference value. When the user measures later, the display value is the difference
for input value minus reference value. ie. RELΔ(current reading)= Input value - Reference value.
4.6 Back Light And Clamp Head Light
1) In the process of measurement, if ambient light is too dark to read, press "B.L/HOLD" key for two
seconds to turn on the display backlight and the clamp head light. Both lights will automatically
turn off after about 30 seconds.
2) During this period, pressing "B.L/ HOLD" key for two seconds will turn off the display backlight
and the clamp head light.
Note:
When battery voltage ≤ 3.6V, the LCD displays "
backlight, the battery voltage drops below 3.6V, due to high working current. The " " symbol may
appear, and Measurement accuracy is not guaranteed. Continue to use the meter normally without
using backlight. Do not replace the battery until "
4.7 Automatic Power-Off
1) If there is no operation during any 30 minutes after turning the machine on, the meter will enter
suspended stated, automatically powering off to save the battery.
2) After automatic power-off, press any key, the meter will turn on again.
3) If the user holds "FUNC" key when powering on, it will cancel automatic power-off function.
4.8 Measurement preparation
1) Turn the transfer switch to turn on the power. When battery voltage is low (about ≤ 3.6V, 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.
" (undervoltage) symbol.When the user uses the
" symbol shows under normal conditions.
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