3) Hold the cathode of the diode to the black
test tip and the anode to the red test tip.
4) The display shows the forward voltage
with a test current of 1.5 mA in mV.
With a display of 0 V the diode has a short-
circuit.
With the display "1" the diode is interrupted
or connected in reverse direction (change
the polarity of the diode).
6 Replacement of Battery or
Fuse
Prior to opening of the unit in any case
remove the test leads from the measuring
points of the circuit to prevent any danger
of an electric stroke.
Never operate the unit if it has been
opened.
a. If the display shows symbol
battery must be replaced.
b. If no measurement can be carried out in
the direct current range 200 µA–200 mA,
check the fuse and replace it by one of the
same type (0.2 A, quick-acting), if neces-
sary.
For the replacement remove both screws at
the rear plate of the unit and take off the lower
housing shell. After the replacement tighten
the housing shell by screws. Only then take
the meter into operation again.
, the 9 V
GB
17