Diode Test; Continuity Check - VOLTCRAFT LSG-4 Mode D'emploi

• Connect the two measuring prods to the object to be measured. As long as the object to be measured is not
high-resistive or interrupted, the measured value will be indicated on the display. Wait until the display has stabi-
lised. With resistances of >1 MOhm, this may take a few seconds.
• As soon as "OL" (overload) appears on the display, you have exceeded the measuring range or the measuring
circuit has been broken.
• After measuring, remove the measuring leads from the measuring object and turn the DMM off.
If you carry out a resistance measurement, make sure that the measuring points which you contact with the
test prods are free from dirt, oil, solderable lacquer or the like. An incorrect measurement may result under
such circumstances.
d) Diode test
Make sure that all the circuit parts, switches and components and other objects of measurement are dis-
connected from the voltage and discharged.
• Turn the DMM on and select measuring range
• The diode symbol appears on the display.
• Plug the red measuring lead into the Ω measuring socket (8) and the black measuring lead
into the COM measuring socket (7).
• Check the measuring leads for continuity by connecting both measuring prods with one
another. After that the value must be approx. 0 V.
• Now connect the two measuring prods with the object to be measured (diode).
• The display shows the continuity voltage "UF" in volt (V). If "OL" is indicated, the diode is
measured in reverse direction (UR) or the diode is defect (interruption). Perform a counter-
pole measuring for control reasons.
• After measuring, remove the measuring leads from the measuring object and turn the DMM off.
Silicone diodes have an on-state voltage (UF) of approx. 0.4 – 0.9 V.
e) Continuity check
Make sure that all the circuit parts, switches and components and other objects to be measured are discon-
nected from the voltage and currentless at all times.
• Turn the DMM on and select measuring range
• Press the button "MODE" (6) to switch the measuring function. The symbol for continuity
check now appears in the display. Pressing this button again takes you to the first measuring
function etc.
• Plug the red measuring lead into the Ω measuring socket (8) and the black measuring lead
into the COM measuring socket (7).
• A measuring value of less than 35 Ohm is detected and a beep sounds.
• As soon as "OL" (overload) appears on the display, you have exceeded the measuring range or
the measuring circuit has been interrupted. Perform a counter-pole measuring for control reasons.
• After measuring, remove the measuring leads from the measuring object and turn the DMM off.
34