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UMG 508Specifications(Measurement using current converters ../5A)Network quality parametersFunction Symbol Accuracy class Measur. range Display rangeFrequency f 0.05 (IEC61557-12) 40 .. 70 Hz 40 Hz .. 70 HzPhase current I 0.2 (IEC61557-12) 0.001 .. 8.5 Arms 0 A .. 9999 kANeutral cond. current measured IN 0.2 (IEC61557-12) 0.001 .. 8.5 Arms 0 A .. 9999 kANeutral cond. current calculated INc 0.5 (IEC61557-12) 0.001 .. 25.5 A 0 A .. 9999 kAVoltage U L-N 0.1 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kVVoltage U L-L 0.1 (IEC61557-12) 18 .. 1000 Vrms 0 V .. 9999 kVShort-time flicker, long-time fli. Pst, Plt - - -Voltage drops (L-N) Udip 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kVVoltage rises (L-N) Uswl 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kVVoltage interruptions Uint - - -Voltage unbalance (L-N) 1) Unba 0.2 (IEC61557-12) 10 .. 600Vrms 0 V .. 9999 kVVoltage inbalance (L-N) 2) Unb 0.2 (IEC61557-12) 10 .. 600 Vrms 0 V .. 9999 kVVoltage harmonics Uh cl. 1 (IEC61000-4-7) to 2.5 kHz 0 % .. 100 %Current harmonics Ih cl. 1 (IEC61000-4-7) to 2.5 kHz 0 % .. 100 %Network signal voltage MSV - - -1) Reference to amplitude.2) Reference to phase and amplitude.90