Gossen MetraWatt METRAHIT ENERGY TRMS System Multimeter Operating Instructions Manual page 31

The active low-pass filter is indicated by the FILTER display. The
multimeter is automatically switched to manual measuring range
selection.
Specified measuring accuracy is not reached with signals of grea-
ter than 100 Hz when the filter is active.

V
COM
Temp
~
Warnings regarding dangerous voltage:
> 30 V AC or > 35 V DC :
> 600 V:
Voltage Comparator for Displaying Dangerous Voltage
The input signal or measuring signal is checked by a voltage
comparator for dangerous spikes, because these do not appear at
the display when the low-pass filter is used.
At voltages of greater than 30 V AC or 35 V DC, a danger symbol
appears at the display: .
GMC-I Messtechnik GmbH
Measurements: V/Hz/dB – PQ/
Measuring ranges:
V~: 600 mV  600 V
max. 600 V (< 10 kHz)
max. 100 V (> 10 kHz)
Hz: 1 Hz ¼ 300 kHz
6
P = 6 x 10 V x Hz
max
for U > 100 V
– MHz/% – /nS/R
– /
SL
CL ip = 0FF !
V~
1 kHz
dB
V~ & Filter
!
Reference value
Current measured value
– Temp – /m – W/Wh – A/Hz/thd
050.00
Hz
.
230 00
AC
V TRMS
FUNC
ENTER
.
050 00
AC
Hz TRMS
FUNC
ENTER
FILTER
050.00
Hz
MAN
.
230 00
AC
V TRMS
FUNC
ENTER
R
230.0
00.775
:
V
V
dB
.
049 45
AC
TRMS
FUNC
ENTER
V~
Hz
V~
1 kHz
dB
31