LIMIT DM 620 Bedienungsanleitung Seite 13

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.
• Before testing continuity, switch off the power supply to the circuit, and fully discharge all
capacitors.
7. Diode test (P 9)
DM 620
USB
P 9
7.1 Insert the red test lead into the
7.2 Turn the function dial to the
7.3 Short-press the
7.4 Connect the red probe to the diode anode, and the black probe to the diode cathode.
7.5 Read the forward bias value on the display.
7.6 Measured value <0.12 V: The diode may be damaged; the red indicator light is on.
Measured value within 0.12~2 V: The diode is normal; the green indicator light is on (for reference
only).
7.7 If the diode is open or its polarity is reversed, the LCD will display "OL". For silicon PN junction, the
normal value is generally about 500~800 mV.
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.
• Before testing the diode, switch off the power supply to the circuit, and fully discharge all
capacitors.
D
jack, and the black test lead into the COM jack.
position.
button to switch to diode test if required.
GB
11