Non-Contact Voltage Detection (NCV)
• this function does not require the use of probes, the
measurement is carried out by the built-in NCV detector
in the upper part
• turn main switch to NCV position
• bring the detector closer to the cable or the socket
• if an intermittent buzzer sound appears and the red
diode above the screen flashes and the display shows
a symbol of bars (one, two, or three - depending on the signal strength): , it means that
the tested circuit is live.
Diode test
• put the black sampler in the slot
• put the positive, red test probe in the socket
• turn the main switch to position
• put the testers in parallel to the diode circuit (red at the input), if the buzzer gives
a signal, it means working diode
• To measure the diode voltage, press the SEL button, the diode icon will appear
on the screen. Take the measurement, the correct voltage value is 500-800mV.
• If the coil circuit is broken or the polarity is reversed, the meter shows OL.
• When measuring diodes, disconnect the power from the device and discharge
the capacitors
TROUBLESHOOTING
Symptoms
Possible causes and solutions
The display does not work
• turn on the device
• reverse the poles of the batteries
• change the batteries
Low battery symbol on the display
Replace the batteries
Current indication error
Blown fuse
Resistance error in the display
Poor probe to circuit connection