User Manual

GMC-I Messtechnik GmbH 11
10 Continuity and Diode Testing
➭ Make sure that the device under test is voltage-free.
Interference voltages distort measurement results!
➭ Set the rotary selector switch to .
➭ Connect the device under test as shown.
Conducting Direction and/or Short-Circuit:
The instrument displays conducting-state voltage in volts. As
long as voltage drop does not exceed the maximum display
value of 1,999 V, several series connected components or
reference diodes can be tested with a small reference
voltage.
Reverse Direction or Interruption:
The measuring instrument indicates overflow “OL”.
Note!

Resistors and semiconductors which are connected
in parallel to the diode distort measurement results!
Sub-function Continuity Test with Acoustic Signal
If the sub-function “continuity test with acoustic signal” is
activated, a continuous acoustic signal is generated by the
instrument within a display range of R < 40.
Acoustic Signal ON:
➭ Briefly press the FUNC key.
Activation is acknowledged with an acoustic signal.
The symbol appears at the display as well.
Acoustic Signal OFF:
➭ Briefly press the FUNC key once again.
Deactivation is acknowledged with an acoustic signal.
The symbol is cleared from the display.
The acoustic signal function is always inactive immediately
after the “continuity test” function has been selected with the
rotary selector switch. The acoustic signal can be activated
and deactivated by repeatedly and briefly pressing the FUNC
key. If the key is pressed and held, the acoustic signal is
always deactivated, which is acknowledged with two
acoustic signals.
0.654
0L
Conducting Direction
Reverse Direction
0 . 000
V
FUNC
brief
0V !
Continuity
R < 40 
!
030 . 0

acoustic
signal