User manual

58 GMC-I Gossen-Metrawatt GmbH
Technical Data
Insulation Resistance Measurement
1)
1)
During insulation measurement (MΩ
@UISO
): If ERROR is displayed as „FEHL“ >> limits:
U
interference
> 10....20 V and U
interference
≠ U
ISO
, Ri < 50 kΩ @ Uiso 50 V, Ri <
100 kΩ @ Uiso 100 V, Ri < 250 kΩ @ Uiso 250 V, Ri < 500 kΩ @ Uiso 500 V, Ri <
1000 kΩ @ Uiso 1000 V
2)
The ability to select a test voltage depends upon the customer-specific variant.
Internal Clock
Time format TT.MM.JJJJ hh:mm:ss
Resolution 0.1 s
Accuracy ±1 minute per month
Temperature
influence 50 ppm/K
Influencing Quantities and Influence Error
1)
With zero balancing
2)
Power limiting: frequency x voltage, max. 3 x 10
6
V x Hz
3)
The accuracy specification is valid as of a display value of 10% and up
to 100% of the measuring range for both measuring modes with the
TRMS converter in the A AC and A (AC+DC) ranges.
Measuring Range Resolution
Test voltage
U
ISO
2)
Digital Display
Intrinsic Error under
Reference
Conditions
300 mV ... 1000 V Ri=1M Ω 3 + 30 > 100 Digit
5 ... 310.0 kΩ 0,1 kΩ
50/100/250/500 V
3 + 5
0.280 ... 3.100 MΩ 1 kΩ
50/100/250/500/1000 V
3 + 5
02.80 ... 31.00 MΩ 10 kΩ
50/100/250/500/1000 V
5 + 5
028.0 ... 310.0 MΩ 100 kΩ
50/100/250/500/1000 V
5 + 5
0280 ... 3100 MΩ 1 MΩ
500/1000 V
5 + 5
Measuring
Function
Nom.
Voltage
U
N
Open-
Circuit
Voltage
U
o
Nom.
Cur-
rent I
N
Short-
Circuit
Cur-
rent I
k
Acoustic
Signal
for
Overload Capacity
Value Time
U
interference
/
MΩ
@UISO
— — — — U>1000V 1000 V dauernd
MΩ
@UISO
50, 100,
250,
500 V
max.
1.1x U
Iso
1.0 mA < 1.2
mA
U>1000V 1000 V 10 s
MΩ
@UISO
1000 V max.
1.1x U
Iso
0.5 mA < 1.2
mA
U>1000V 1000 V 10 s
Influencing
Quantity
Sphere of
Influence
Measured Quantity /
Measuring Range
1)
Influence Error
(...% rdg. + ... d) / 10 K
Temperature
0 °C ... +21 °C
and
+25 °C ... +40 °C
V 0.2 + 5
V 0.4 + 5
300 Ω ... 3 MΩ 0.5 + 5
30 MΩ 1 + 5
mA/A 0.5 + 5
mA/A 0.8 + 5
30 nF ... 300 μF1 + 5
Hz 0.2 + 5
°C/°F (Pt100/Pt1000) 0.5 + 5
Influ-
encing
Quan-
tity
Measured
Quantity /
Measuring
Range
Sphere of Influence
Intrinsic Error
3)
±( ... % rdg. + ... d)
Fre-
quency
V
AC
2)
300 mV
...
300 V
> 15 Hz ... 45 Hz 2 + 5 > 300 Digit
> 65 Hz ... 2 kHz 2 + 5 > 300 Digit
> 2 kHz ... 10 kHz 3 + 5 > 300 Digit
1000 V > 65 Hz ... 5 kHz 3 + 5 > 60 Digit
A
AC
300 μA ...
10 A
> 15 Hz ... 45 Hz
3 + 10 > 300 Digit
> 65 Hz ... 10 kHz
A
AC
+DC
300 μA ...
10 A
> 15 Hz ... 45 Hz
3 + 30 > 300 Digit
> 65 Hz ... 10 kHz
A
AC
300 mV /
3 V / 30 V
2)
> 65 Hz ... 10 kHz 3 + 5 > 300 Digit
A
AC
30 mA...3 A > 65 Hz ... 10 kHz 3 + 30 > 300 Digit