contact resistance value from the measured value.
●For high-resistance measurement (>10MΩ), it is normal taking several
second to obtain stable reading.
●The LCD display “OL” indicating open-circuit for the tested resistor or
the resistor value is higher than the maximum range of the meter.
5-3. Diode/Continuity check
①Set the rotary switch to “ ” position. First time, default mode is
diode check mode. You can enter the continuity check mode by the
②insert the red test lead into the “VΩ”terminal and the black test lead into
③Use the diode test mode to check diodes, transistors and other
semiconductor device. In the diode test mode sends a current through the
semiconductor junction, and the measure the voltage drop across the
junction. A good silicon junction drop between 0.5V and 0.8V.
④For forward voltage drop reading on any semiconductor component, place
the red test lead on the component anode and place the black test lead on
the component cathode. The measured value show on the display.
⑤Reverse the test lead and measure the voltage across the diode again.
●If diode is good, the display shows “OL”.
●If diode is shorted, the display shows 0 (zero) in both direction.
●If display shows “OL” in both direction, the diode is open.
①Press the “FUNC” key to enter to the continuity mode.
②The buzzer sound if the resistance of a circuit under test is less than 100Ω.
5-4. Frequency measurement
①Set the rotary switch to “Hz” position.
②Insert the red test lead into the “ VΩHz” input terminal and the black test
lead into the “COM” terminal.
③Connect the test leads across with the circuit under testing. The measured
value shown on the LCD display.
