www.megger.com12Operation AVO® 2154.6 Continuity check F To avoid electric shock, never measure continuity on circuits that have voltage on them.1. Set the function switch to the CAP position.2. Insert the black test lead plug into the negative COM socket.3. Insert the red test lead plug into the positive socket.4. Repeatedly press the MODE button until and are indicated on the display.5. Connect the test lead probes to the circuit under test. 6. If the resistance is less than 50 Ω, the audible signal will sound.7. If the circuit is open, OL will be displayed.4.7 Diode test1. Set the function switch to the CAP position.2. Insert the black test lead plug into the negative COM socket.3. Insert the red test lead plug into the positive V socket.4. Repeatedly press the MODE button until and V are indicated on the display.5. Connect the test lead probes to the diode under test. 6. Forward voltage will typically indicate 0.400 to 0.700 V. Reverse voltage will indicate OL.7. Shorted diodes will indicate nearly 0 V while an open circuit diode will indicate OL with both polarities.4.8 Capacitance measurements F To avoid electric shock, disconnect power to circuit under test and discharge all capacitors before taking any capacitance measurements.1. Set the function switch to the CAP position.2. Insert the black test lead plug into the negative COM socket.3. Insert the red test lead plug into the positive V socket.4. Repeatedly press the MODE button until nF is indicated on the display.
