14
GMC-I Gossen-Metrawatt GmbH
10
Diode and Continuity Testing
➭
Be certain that the device under test is voltage-free. Extraneous
voltages distort the measurement results!
➭
Set the rotary switch to
.
➭
Connect the DUT as shown.
Conducting Direction and Short-Circuit
The instrument displays forward voltage in volts. As long as the
voltage drop does not exceed the maximum display value of
1.999 V, you can test several elements connected in series, or ref-
erence diodes with small reference voltages.
Reverse Direction or Interruption
The measuring instrument indicates overflow “OL”.
Note!
Resistors and semiconductor paths connected in paral-
lel to the diode distort measurement results!
Diode and Continuity Testing with Acoustic Signal
If the “acoustic signal” function is activated, the instrument gener-
ates a continuous tone for displayed values between 0 and approx.
1.1 V, or for < 1.8 k
Ω
.
Acoustic Signal ON (default condition)
After the “diode and continuity testing” function has been activated
with the rotary switch, the acoustic signal is always activated. The
symbol (19) is simultaneously displayed at the LCD. Repeated
brief activation of the multifunction key
FUNC
switches the acoustic
signal alternately on and off.
Acoustic Signal OFF
➭
Briefly press the multifunction key
FUNC
.
Deactivation is acknowledged with an acoustic signal. The
symbol (19) disappears from the LCD. By pressing and hold-
ing the key, the acoustic signal is always activated, which is
acknowledged with a twice repeated acoustic signal.
600V
V
F
°
C
b
j
a
600V
V
F
°
C
V
1M
M
1000V=ISO
Forward Direc
Reverse Direc
Diode Testing
Forward Direction
Reverse Direction
METRA HIT 16I/L
METRA HIT 16T
