
24
DIODES
Never make a diode test on a live circuit
■
Connect the leads to the multimeter and to the terminals of the component
to be tested.
■
Place the selector switch on the diode function :
- in forward direction the display gives the value of the junction in volts
(resolution 1mV)
- accuracy : ± 2 % R ± 15 mV
- open circuit voltage :
≥
3 V
- short circuit current : 0.8mA
- in reverse direction the display indicates the open circuit voltage,
around 3V.
■
Memorise the value if necessary, by pressing the HOLD button.
■
With this function it is thus possible to test standard diodes, l.e.d’s or any other
semiconductor which has a junction that corresponds to a direct voltage of
less than 3V.
■
Protection : idem resistances