User’s Manual of DF-68A Digital Clamp Meter
4-1-2. Open the jaw and hold one wire, and in order to obtain the accurate reading, the wire is
suggested to locate to the middle of the closed jaw.
Caution:
Doesn’t input the current exceeding the limited value, otherwise the meter will be damaged.
4-2. DCV measurement
4-2-1. Set the function switch to the DCV range. Put the red probe into the “V/Ω” jack, and the black
probe into the “COM”jack.
4-2-2. Connect the tested probe to the tested circuit, and the voltage and the polarity of the point
connecting to the red probe will be displayed on the screen.
4.3. ACV measurement
4-3-1. Set the function switch to the ACV range. Put the red probe into the “V/Ω” jack, and the black
probe into the “COM”jack.
4-3-2. Connect the tested probe to the tested circuit and obtain the value from the LCD screen.
Caution:
Doesn’t input the current exceeding the limited value, otherwise the meter will be damaged.
4.4. Resistance measurement
4-4-1. Set the function switch to the Ωrange. Put the red probe into the “V/Ω” jack, and the black
probe into the “COM”jack.
4-4-2. Connect the tested probe to the tested circuit and obtain the value from the LCD screen.
Caution:
1. Please cut off all the power in the circuit and all capacitors exhausted residual charge before
measuring the online resistance in order to ensure measurement correctly. (it is better to pick up
one side of the resistance)
2. It is prohibited to input voltage in the resistance range.
3. The display will show “1” if the tested resistance of the circuit is open.
4. When the probes are connected shortly, there will be some clutter resistance about 1Ω.
4-5. Interrupted circuit and diode measurement
4-5-1. Set the function switch to the”/ “range. Put the red probe into the “V/Ω” jack,
and the black probe into the “COM”jack.
4-5-2. Connect the probes to the tested circuit, and if the buzzer ringing, the value is <70Ω.
4-6. DATA HOLD
