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Gossen Metrawatt METRAHIT ULTRA BT Manual

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60 GMC-I Messtechnik GmbH
Technical Data
Influencing Quantities and Influence Error
1
With zero balancing
2
Prerequisite: stable ambient temperature (t > 30 min.)
1
Intrinsic uncertainty in the frequency response applies as of 10% ... 100% of the
measuring range.
2
Signals > 50 kHz: plus 5%
3
Power limiting: frequency x voltage max. 3 x 10
6
V x Hz where U > 100 V
4
the following applies for the 300 μA measuring range: 7 + 30
5
Except for sinusoidal waveform
Influencing
Quantity
Sphere of
Influence
Measured Quantity /
Measuring Range
1
Influence Error
(...% rdg. + ... d) / 10 K
Tem perature
0° C ... +21° C
and
+25° C ... +40° C
V 0.05 + 5
V , V , dB 0.2 + 10
300 Ω ... 30 MΩ, 0.1 + 10
A , A , A 0.3 + 10
30 nF, 300 nF, 3 μF, 30 μF 0.5 + 10
3 nF, 300 μF3 + 10
Hz 0.05 + 5
0.1 + 5
°C/°F (Pt100/Pt1000) 0.1 + 10
°C/°F thermocouple K
2
0.1 + 10
Influencing
Quantity
Measured Quantity
Influence Error
(...% rdg. + ... d)
DATA V, A, Ω, Hz, dB, °C ±10 d
MIN / MAX V, A, Ω, Hz, dB, °C ±30 d
Influencing
Quantity
Measured Quantity /
Measuring Range
Sphere of Influence
Intrinsic Uncertainty
±(
... % rdg. + ... d)
1
Frequency
V
AC
V
AC+DC
300.00 mV
...
30.000 V
3
> 15 Hz ... 45 Hz 2 + 30
> 65 Hz ... 1 kHz 0.5 + 30
> 1kHz ... 20 kHz 2 + 30
> 20kHz ... 100 kHz 3 + 30
2
300.00 V
3
600.00 V
3
> 15 Hz ... 45 Hz 2 + 30
> 65 Hz ... 5 kHz 2 + 30
> 5kHz ... 20 kHz 3 + 30
I
AC
I
AC+DC
300 μA ... 10 A
> 1 5 Hz ... 65 H z
3 + 30
4
> 6 5 H z ... 1 0 k H z
Influencing
Quantity
Sphere of
Influence
Measured Quantity /
Measuring Range
Influence Error
5
Crest Factor CF
1 ... 3
V, A
± 1% rdg.
> 3 ... 5 ± 3% rdg.
Influencing
Quantity
Sphere of
Influence
Measured Quantity Influence Error
Relative
Humidity
75%
3 days
instrument off
V, A, Ω, F, Hz, dB, °C1 x intrinsic error
Battery voltage Range: 1.8 ... 3.6 V ditto Included in intrinsic error
… 60 …


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