LIMIT DM 620 Bedienungsanleitung Seite 12

5.1 Insert the red test lead into the
GB
5.2 Turn the function dial to the
5.3 Touch the probes to the test points in the circuit.
5.4 Read the resistance value on the display.
Caution:
• Take care when working with voltages above AC 30 V RMS, 42 V peak or DC 60 V. Such voltages
pose a shock hazard.
• If the measured resistor is open or the resistance exceeds the maximum range, the LCD will display
"OL".
• Before measuring resistance, switch off the power supply to the circuit, and fully discharge all
capacitors.
When measuring low resistance, the test leads will produce 0.1~0.3 Ω measurement error. To obtain
•
an accurate measurement, short-circuit the test leads and use the relative value measurement (REL)
mode.
• If the resistance is not less than 0.5 Ω when the test leads are short-circuited, please check if the
test leads are loose or defective.
• When measuring high resistance, it is normal to take a few seconds to stabilize the reading.
6. Continuity test (P 8)
DM 620
USB
6.1 Insert the red test lead into the
6.2 Turn the function dial to the
6.3 Short-press the
6.4 Touch the probes to the test points in the circuit.
6.5 Measured resistance <50 Ω: The circuit has good continuity; the buzzer beeps continuously and the
green indicator light is on.
10
position.
P 8
position.
button to switch to continuity test.
jack, and the black test lead into the COM jack.
jack, and the black test lead into the COM jack.