DCM3500T
3.2 Switch, buttons and input Jack description
Used for Reading hold or back light control
Used for switching manual measuring range state.
Used for entering relative Measurement state and Hz% function
Used for maximun/mínimum Measurement function switch
Used for measuring function switch
Transfer switch: used for selecting function and measuring range
OFF position used for shutting off the power.
NCV position used for Non-Contact Voltage detection
COM Jack: V, R, Hz, Duty cycle, Capacitance, Diode, circuit connection
common wire connecting terminal
INPUT Jack: C,R,Hz, Duty cycle, Capacitance, Diode, circuit connection
input wire connecting terminal
4. OPERATING GUIDANCE
4.1 Reading Hold
In the process of measurement, if reading hold is required, press "HOLD/B.L" key, the value on the
display will be locked. Press "HOLD/B.L" key again to cancel reading hold state.
4.2 Manual Measuring Range
RAN key is automatic/manual measuring range key to trigger mode. The preset one is automatic
measuring range. Press to switch to manual measuring range. In the manual measuring range
mode, click once to change to upper range. Continue to the top range, then continue to press this
key to change to the bottom range. If this key is pressed more than 2 sec, it will switch back to
automatic measuring range state.
Note: in capacitance and frequency measurement function still can switch auto-range or manual
range via press RAN key.
4.3 Frequency/Duty Ratio Switch
1) When the meter is in ACV or ACA measure function, if press and hold"Hz/%" button for 2S, the
meter will enter Hz measure mode, and measure ACV or ACA signal frequency. Press "Hz/%"
button again, the meter will enter duty cycle measure mode, and measure ACV or ACA signal
duty ratio. If irotary is at HZ/DUTY position, pressing FUNC key will switch between HZ and DUTY
by recycling.
2) Press and hold "Hz/%"key for 2S, the meter will return back to ACV or ACA measure mode.
Note: The meter is in the maximum/minimum value measurement state, it can't switch to frequency,
duty ratio measurement mode.
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