RND lab RND 365-00008, Руководство пользователя

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4. Touch the test lead probes to the component under test. If the component is installed in
a circuit, it is best to disconnect one side before testing to eliminate interference with
other devices.
5. Read the resistance in on the LCD display.
4-4.Diode Test
WARNING: Never test diodes in a live circuit.
1. Set the rotary function switch to the CAP position.
2. Press the MODE button until the “ “ symbol appears on the LCD display.
3. Insert the black test lead into the COM input jack and the red test lead into the
input jack.
4.Touch the test lead probes to the diode under test.
5.Forward voltage will indicate 0.4 to 0.7 on the LCD display. Reverse voltage will indicate
“OL”. Shorted devices will indicate near 0 and an open device will indicate “OL” in both
polarities.
4-5.Continuity Test
WARNING: Never test continuity on a live circuit.
1. Set the rotary function switch to the CAP position.
2. Press the MODE button until the “ ” symbol appears on the LCD display.
3. Insert the black test lead into the COM input jack and the red test lead into the
input jack.
4. Touch the test lead probes to the device or wire under test.
5. A beeper will sound if the resistance is approx 50 ohms or less and the resistance
reading will be shown on the LCD display.
4-6.Capacitance Measurements
WARNING: 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.
1. Set the rotary function switch to the CAP position.
2. Press the MODE button until the “nF” symbol appears on the LCD display.
3. Insert the black test lead banana plug into the negative COM jack.
Insert the red test lead banana plug into the positive CAP jack.
4. Touch the test leads to the capacitor to be tested.
5. The test may take up to 30 Sec or more for large capacitors to charge. Wait until the
readings settle before ending the test.
6. Read the capacitance value in the display
4-7.Frequency/Duty Cycle Measurements (Electronic)
1. Set the rotary function switch to Hz/% position position .
2. Press the Hz/% button to indicate “Hz” in the display.
3. Insert the black lead banana plug into the negative COM jack and the red test lead
banana plug into the positive Hz jack.
4. Touch the test probe tips to the circuit under test.
Read the frequency on the display.
5. Press the Hz/% button again to indicate “%” on the display. Read the % of duty cycle on
the display.
4-8.Non-contact AC Voltage Measurements
WARNING: Risk of Electrocution. Before use, always test the Voltage Detector on a known
live circuit to verify proper operation.
1. Touch the probe tip to the hot conductor or insert into the hot side of the electrical outlet.
2. If AC voltage is present, the detector light will illuminate.
NOTE: The conductors in electrical cord sets are often twisted. For best results, rub the
probe tip along a length of the cord to assure placing the tip in close proximity to the live
conductor.
NOTE: The detector is designed with high sensitivity. Static electricity or other sources of
energy may randomly trip the sensor. This is normal operation.
4-9.Battery Replacement
1. Remove the one rear Phillips head screw
2. Open the battery compartment
3. Replace old batteries with two “AAA” 1.5V batteries.
4. Re-assemble the meter.