4. LoZ (low impedance) ACV measurement (P 6)
DM 620
USB
P 6
4.1 Insert the red test lead into the
4.2 Turn the function dial to the LozV
4.3 Connect the test leads in parallel with the measured load or power supply.
4.4 Read the voltage value on the display.
4.5 Short-press the
USB
Caution:
•
Do not input a voltage over 1000 V or it may damage the meter.
•
Take care to avoid electric shock when measuring high voltages.
•
After completing the measurement, disconnect the test leads from the circuit under test.
•
Before each use, verify meter operation by measuring a known voltage.
•
After using the LoZ function, wait 3 minutes before next operation.
•
LoZ ACV measurement eliminates ghost voltage for more accurate measurement.
5. Resistance measurement (P 7)
DM 620
USB
P 7
jack, and the black test lead into the COM jack.
position.
button to display the frequency/duty ratio of the measured voltage.
GB
9