Features |
DM-5 Power Quality Analyzer |
Wiring connection |
1P2W, 1P3W, 3P3W, 3P4W |
Measurements and parameters |
Voltage, current, frequency, active power, reactive power, apparent power, active energy, reactive energy, apparent energy, power factor (cos ø), neutral current, demand, harmonics, quality (swell/dip/interruption, transients/overvoltage, inrush current, unbalance rate), capacitance calculation for PF correction unit, flicker |
Voltage (rms) |
Range: 600.0 / 1000 V Accuracy: ±0.2% + 0.2%f.s.(sine wave, 40 Hz to 70 Hz) Allowable input: 1% to 120% of each range (rms). 200% of each range (peak) Display range: 0.15% to 130 % of each range Crest factor: 3 or less Sampling speed of voltage transient: 24 μs Input impedance: approx. 1.67 MΩ |
Current (rms) |
Accuracy: ±0.2% + 0.2%f.s. + accuracy of flex current sensor (sine wave, 40 Hz to 70 Hz) Allowable input: 1% to 110% of each range (rms). 200% of each range (peak) Display range: 0.15% to 130 % of each range Crest factor: 3 or less Input impedance: approx. 100 kΩ |
Swell / dip / interruption |
Range: same as Voltage (rms) Accuracy: ±1.0% of nominal voltage Threshold value: In percentage of nominal voltage value |
Power and energy |
CT-53 flex current sensor (3-ch): max. 6000 kW CT-500 flex current sensor (1-ch): max. 1000 kW Active power accuracy: ±0.3% + 0.2%f.s. + accuracy of flex current sensor (PF 1, sine wave, 40 Hz to 70 Hz) Influence of power factor: ±1.0% (PF 0.5, 40 Hz to 70 Hz ) Wh: 0.00000 mWh to 9999.99 TWh VAh: 0.00000 VAh to 9999.99 TVAh varh: 0.00000 varh to 9999.99 Tvarh |
Power factor |
Display range: -1.000 to 0.000 to 1.000 Accuracy: ±1dgt against each calculated value (for sum: ±3dgt) |
Harmonics |
Harmonics order (n): 1 to 50th Inter-harmonics order (n): 1 to 50th Volts: 0.0% to 100.0%, accuracy (≥3% at 100 V nominal voltage): ±10% accuracy (<3% at 100 V nominal voltage): ±0.3% of nominal voltage accuracy (1000 V range): ±0.2% + 0.2%f.s Amps: 0.0% to 100.0%, accuracy (≥10% to max. input range): ±10% + flex current sensor accuracy (<10% to max. input range): ±1.0% + flex current sensor Watts: 0.0% to 100.0%, accuracy: ±0.3% + 0.2%f.s. + accuracy of flex current sensor (PF 1, sine wave, 50/60 Hz) THD: 0.0% to 100.0%, Phase angle: 0.0° to ± 180° |
Flicker |
Displayed items: Pst(1min), Pst, Plt, Max Pst, Max Plt, V, time left Measurement method: Complied with IEC 61000-4-30 and IEC 61000-4-15 Ed.2 Accuracy: Pst (max.20): ±10% according to IEC 61000-4-15 |
Unbalance |
Volts: 0.00% to 100.00%, accuracy: ±0.3% at 50/60 Hz, sine wave (0.00% to 5.00% according to IEC 61000-4-030) Current: 0.00% to 100.00% |
Transient |
Approx. 40.96 ksps (every 2.4 μs) Range: 50 V to 2200 Vdc Accuracy: ±0.5% at 1000 Vdc |
Inrush current |
Range: same as Current (rms) Accuracy: ±0.4% + 0.4%f.s. + accuracy of flex current sensor Threshold value: In percentage of the measurement range |
Capacitance |
Range: 0.000 nF to 9999 F, 0.000 kvar to 999 kvar |