User manual
GMC-I Messtechnik GmbH 7
7 Voltage Measurement
➭ Depending upon the voltage to be measured, set the
rotary selector switch to V
or V .
➭ Connect the measurement cables as shown. The “”
connector jack should be grounded.
Note!
The 600 mV measuring range can only be selected
manually with the MAN / AUTO key.
If the measured value exceeds 60 V DC or 40 V AC
the symbol appears at the display.
An intermittent acoustic signal warns the operator if
the measured value exceeds the upper range limit
value of 1000 V in the 1000 V range.
Attention!
!
Make sure than none of the current measuring ranges
(neither “mA” nor “A”) are activated when connecting
the multimeter for the performance of voltage
measurements! If fuse trip limits are exceeded as a
result of operator error, both the operator and the
instrument are in danger!
Zero Balancing REL in the V AC und V DC Measuring Range
You can select the reference point in the V AC and V DC
measuring range:
➭ Plug the measuring cables into the instrument and
connect the free ends to each other.
➭ After selecting the measuring range, briefly press the two
HOLD and MAN / AUTO keys.
The instrument acknowledges zero balancing with an
acoustic signal and „0“ ( 1digit) and REL appears at the
LCD, depending on the measuring range. The voltage
displayed at the moment the key is pressed is automatically
substracted from all subsequent measured values.
Zero balancing can be deleted:
– by briefly pressing the MAN / AUTO key, which is
acknowledged with an acoustic signal,
– by switching the instrument off.
7.1 Sub-function Hz
➭ Turn the rotary selector switch to V
➭ Briefly press the FUNC multifunction key to display the
frequency (max. 2_kHz) of the AC voltage.
➭ Press the FUNC key once again to quit the Hz function.
MAN
AUTO
brief
V=
– (+)
+ (–)
max. 1000 V
V=: 600 mV 1000 V
Measuring Ranges:
!
>60V:
> 1000 V:
20.00
V
DC
acoustic signal
6V 60 V
60 V 600 V
600 V 1000 V
600 mV 6V
1000 V 600 mV
MAN
AUTO
brief
V~
Max. 1000 V (2 kHz)
V~: 600 mV 1000 V
(30 Hz 2kHz)
Measuring Ranges:
~
!
> 1000 V:
* manual only
>40V:
acoustic signal
6V 60 V
60 V 600 V
600 V 1000 V
600 mV* 6V
1000 V 600 mV*
20.00
V
~
AC
TRMS