GMC-I Gossen-Metrawatt GmbH
29
GB
15
Frequency Measurement
The frequency measurement function can only be activated
for voltage measurement in the V~ and the V
mode.
Note!
☞
It is advisable to measure frequency with the selec-
tor switch in the V~ position. Frequency measure-
ment may be distorted by a superimposed DC
component in the V
position.
➭
Set the rotary switch to V~ or V
.
➭
Apply the measured quantity in the same fashion as for
voltage measurement.
➭
Select the measuring range for the voltage amplitude.
➭
Repeatedly press the multifunction key
ESC|FUNC
until Hz
appears in the display (for V~ twice, for V
once).
The instrument switches to frequency measurement.
Frequency is read out to the main display, and voltage
amplitude to the left hand sub-display.
The frequency measuring range can be selected subse-
quently.
The lowest measurable frequencies and maximum allow-
able voltages can be found in Chapter 25 „Characteristic
Values“.
➭
From the frequency measurement mode, you can switch
directly back to voltage measurement by pressing and
holding the multifunction key
ESC|FUNC
, which is
acknowledged with a twice repeated acoustic signal.
The last selected voltage measuring range remains
active.
FUNC
brief
Voltage
Amplitude
Frequency
2 x FUNC
brief
Voltage
Amplitude
Frequency
050
.
000
231,4
050
.
000
231,4
Selector Switch Position V
Selector Switch Position V~