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UMG 104
Measured value Measurement uncertainties
Voltage ± 0.2% DIN EN 61557-12:2008
Current L ± 0.25% based on DIN EN 61557-12:2008
Current N ± 1% DIN EN 61557-12:2008
Power ± 0.4% DIN EN 61557-12:2008
Harmonic components U, I Class 1 DIN EN 61000-4-7
Active energy
Current transformer ../5A Class 0.5S (DIN EN 62053-22:2003, IEC 62053:22:2003)
Current transformer ../1A Class 1 (DIN EN 62053-21:2003, IEC 62053:21:2003)
Reactive energy
Current transformer ../5A Class 2 (DIN EN 62053-23:2003, IEC 62053:23:2003)
Current transformer ../1A Class 2 (DIN EN 62053-23:2003, IEC 62053:23:2003)
Frequency ± 0.01Hz
Internal clock ±1 minute/month (18°C ... 28 °C)
The specifications apply under the following conditions:
- Annual recalibration,
- a warming up time of 10 minutes,
- an ambient temperature of 18 .. 28°C.
If the device is operated outside the range from 18 .. 28°C an additional measurement error equal
to ±0.01% of the measured value must be taken into account per °C difference.
Measurement uncertainty
The measurement uncertainty of the UMG104 applies to use of the following measuring ranges.
The measured value must lie within the given limits. Outside these limits the measurement
uncertainty is unspecified.
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