Catalog index: WMPLPQM702T

Power quality analyzer

  • power to the analyzer is supplied from tested mains (internal power supply) and is used in all types of networks from 64 V to 760 V,
  • with particular emphasis on measurements at low voltage poles, due to the ease of connection.
  • has an independent power supply socket, especially suited for voltage measurements for transformers and DC circuits.
  • remote control and data transfer through a built-in GSM modem (GPRS),
  • anti-theft feature – SMS notification in the event of position change – built-in GPS receiver,
  • real-time clock synchronized to GPS protocol.
  • Measurement of external temperature in range -55°C…125°C

Possible measurements:

  • Measurements according to EN 50160
  • Voltage L1, L2, L3, N-PE
    – average, minimum, maximum and instantaneous values, range to 760 V, ability to work with voltage transformers,
  • Current L1, L2, L3, N (four inputs)
    – average, minimum, maximum and instantaneous values, measurement current with range to 3 kA (depends on used clamp), ability to work with current transformers,
  • Crest factor for voltage and current,
  • Frequency from 40 Hz to 70 Hz ,
  • Active, reactive, distortion, apparent power, including the type of reactive power (capacitive, inductive),
  • Power recording:
    – Budeanu method,
    – IEEE 1459,
  • Active, reactive, apparent energy,
  • Power factor, cosφ, tgφ,
  • K factor (transformer overload caused by the harmonics),
  • Up to 50th harmonics for voltage and current,
  • Total Harmonic Distortion (THD) for voltage and current,
  • Short-term (PST) and long-term (PLT) flicker,
  • Unbalance of voltage and current,
  • Current events detection including waveforms recording,
  • Current and voltage waveforms recording after each averaging period.
  • Outdoor temperature measurement up to +125oC.

 The device is designed to work with networks:

  • with nominal frequency 50/60 Hz,
  • with nominal voltage:
    64/110 V; 110/190 V; 115/200 V; 127/220 V; 220/380 V; 230/400 V; 240/415 V; 254/440 V; 290/500 V; 400/690 V,
  • DC network

Supported networks:

  • single-phase,
  • two-phase with common N conductor,
  • three-phase star connection with and without N conductor,
  • three-phase delta.


Specification Range Resolution Accuracy
AC voltage (TRMS) 0,0…760,0 V 0,01 % Un ±0,1% Un
Crest Factor Voltage 1,00…10,00 (≤1,65 for voltage 690 V) 0,01 ±5%
Crest Factor Current 1,00…10,00 (≤3,6 Inom) 0,01 ± 5% m.v.
AC current TRMS depends on the clamp* 0,01 % of nominal range ±0,1% of nominal range (add clamps accuracy)
Frequency 40,00…70,00 Hz 0,01 Hz ±0,01 Hz
Active, reactive, apparent power and distortion depends of configuration (transformers, clamp) up to 4 decimal places depends on configuration (transformers, clamp)
Active, reactive apparent energy depends of configuration (transformers, clamp) up to 4 decimal places the same as above
cosφ and Power Factor (PF) 0,00…1,00 0,01 ±0,03
tgφ 0,00…10,00 0,01 depends on Active and Reactive power accuracy
Harmonics Voltage same as for AC voltage TRMS same as for AC voltage TRMS ±5% Uh for Uh ≥ 1% Un ±0,05% Un for Uh < 1% Un
Harmonics Current same as for AC current TRMS same as for AC current TRMS ± 5% Ih for Ih ≥ 3% In ± 0,15% In for Ih < 3% In
Total Harmonics Distortion Voltage 0,0..100,0% 0,1% ±5%
Total Harmonics Distortion Current 0,0..100,0% 0,1% ±5%
Harmonics active and reactive power depends on configuration (transformers, clamp) depends on current and voltage minimum value
Angle between voltage and current harmonics -180,0…+180,0o 0,1o ±(h x 1o)
K-Factor 1,0…50,0 0,1 ±10%
Flicker 0,20…10,00 0,01 ±5%
Unbalance Voltage and Current 0,0…20,0% 0,1% ±0,15% (absolute error)
Temperature -55°C…125°C 0,1°C Analyzer error + ST-2 probes ±2°C for -55°C ≤T< -10°C ±0,5°C for -10°C ≤T≤ 85°C ±2°C for 85°C <T≤ 125°C

*Clamp F-1/F-2/F-3:0..3000 A (10000 Ap-p)

*Clamp C-4: 0..1000 A (3600 Ap-p)

*Clamp C-5: 0..1000 A (3600 Ap-p)

*Clamp C-6: 0..10 A (36 Ap-p) (without current transformers)

*Clamp C-7: 0…100 A (360 Ap-p )

Data Sheet                                      

User Manual                                   

Declarations of conformity