MT-3109 AC/DC Digital Clamp Multimeter
Rotary Switch
Below table indicated for information of rotary switch positions.
Rotary Switch
Position
Function
OFF
Power is turned off
V
AC or DC voltage measurement
Ω
Resistance measurement
/
: Diode test
: Continuity test
Hz / Duty %
Frequency Measurement and Duty
Measurement
Capacitance test range from 40.OOnF to
1OO.OuF
40A
& 400A
AC and DC current measurement range
Functional Buttons
Below table for information of functional button operations.
Button
Operation Performed
HOLD
●
Press
HOLD
to enter the Hold mode in any mode,
the Meter beeps.
●
Press
HOLD
again to exit the Hold mode, the
Meter beeps.
ELA
At
and
Ω
range:
Press select manual ranging measurement mode.
The Meter is default to auto ranging measurement
mode.
When the Meter is at manual ranging measurement
mode, press to step down the range.
At
range:
Press enter to the REL mode. It subtracts a stored
value from the present measurement value and
displays a result.
At Hz/Duty% range:
Press switch to between Hz measurement mode and
Duty % measurement mode.
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