PCE Instruments PCE-ITM 20, Руководство пользователя

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3.8 Diode Test
• Set the function switch to the green Ω CAP
position.
• Insert the black test lead banana plug into the negative
COM jack and the red test lead banana plug into the
positive V jack.
• Press the MODE button to indicate “ ” and “V” on the
display.
• Touch the test probes to the diode under test. Forward
voltage will typically indicate 0.400
… 0.700V. Reverse
voltage will indicate “OL”. Shorted devices will indicate
near 0V and an open device will indicate “OL” in both
polarities.
3.9 Capacitance Measurements
To avoid electric shock, disconnect power to the unit under test and
discharge all capacitors before taking any capacitance measurements. Remove the
batteries and unplug the line cords.
• Set the rotary function switch to the green Ω CAP
position.
• Insert the black test lead banana plug into the negative
COM jack.
• Insert the red test lead banana plug into the positive V
jack.
• Press the MODE button to indicate “F”
• Touch the test leads to the capacitor to be tested.
• Read the capacitance value in the display