Dawson DCM201A, Руководство пользователя

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
“ ”indicates the maximum input voltage is 750V AC (RMS).
Measuring in “HZ/DUTY” Mode:
WARNING
DO NOT MEASURE INPUTS OF MORE THAN 250V AC TO
AVOID ELECTRICAL SHOCK AND INJURY.
1. Insert the black lead into “COM” input and the red lead into
“ INPUT ” input.
2. Turn the rotary switch to “ HZ” .
3. Connect the test leads to the voltage source or between loads.
4. Read the measurement from the display.
5. Press “Hz/% ” button again to switch to duty mode.
Attention:

The accuracy of reading is guaranteed between 10Hz ~ 10kHz.
Below 10Hz a “00.0” will show. Above 10kHz range is still
measurable, but the reading is not guaranteed.
Resistance Measurement
WARNING
AVOID ELECTRICAL SHOCK AND INJURY. POWER OFF THE
CIRCUIT AND DISCHARGE THE CAPACITANCE BEFORE
MEASURING THE RESISTANCE.
1.
Insert the black lead into “ COM” input and the red lead into
“ INPUT ” input.
2. Turn the rotary switch to , this mode measures the
resistance.
3. Connect the test leads across the circuit or resistors.
4. Read the measurement from the display.
Attention:

When the circuit is open, the Meter displays “ OL ”.

The Meter will take several seconds to give a reading if the
circuit has a resistance of more than 1MΩ.
Diode Measurement
1. Insert the black lead into “COM” input and the red lead into
“ INPUT” input.
2. Turn the rotary switch to .
3. Press “ FUNC ” button twice to switch to Diode ( ) mode.
4. Connect the black lead to the cathode (-) and the red lead to the
anode (+).
5. Read the measurement from the display.
Attention:

The Meter displays the forward biased value.

If the diode is connected backwards or is an open circuit, the
Meter will display “OL” .