User manual
12 GMC-I Messtechnik GmbH
8.2 Continuity Test during Resistance Measurement
If the “acoustic signal ” function is activated and the
0 ... 310 measuring range is selected, a continuous
acoustic signal is generated by the instrument within a range
of 0 to approx. 10 .
Overflow “0l” is displayed where Rd > 310 .
Activating and Deactivating Continuity Testing (acoustic signal)
➭ Set the rotary selector switch to „//“.
➭ Repeatedly press the FUNC key until and “short” appear
at the display, provided the connector jacks are open
(Display 0.L).
➭ Connect the measurement cables to the device under
test.
➭ The instrument is switched to resistance measurement
by pressing the FUNC key once again.
8.3 Diode Measurements
➭ Make sure that the device under test is voltage-free (see
chapter 7.1). Interference voltages distort measurement
results!
➭ Set the rotary selector switch to „//“.
➭ Briefly press the FUNC key for diode measurement. Unit of
measure “V” and “diode” are then displayed if the
connector jacks are open (Display 0.L).
➭ Connect the device under test as shown.
Conducting Direction and Short-Circuit
The instrument displays conducting-state voltage in volts. As
long as voltage drop does not exceed the maximum display
value of 3 V, several series connected components or
reference diodes can be tested.
Reverse Direction or Interruption
Overload (.0l) is displayed at the instrument for diode
measurements where Ud > 3.1 V. Measuring current is
always a constant current of approximately 1 mA.
Note!
Resistors and semiconductors which are connected
in parallel to the diode distort measurement results!
m
S+S–
VC
Conducting Direction
Reverse Direction