Prokit's Industries MT-3109 - Manual (Page 6)

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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