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PQM-707 Power Quality Analyzer

Regular price $5,804.00

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The new Power Quality Analyzer Sonel model PQM-707 is a multi-function testing instrument for the measurement and analysis of all aspects of power. It's wide measurement capabilities can be used to measure individual loads, entire facilities, or power distribution networks. It is designed to be a trouble-shooting tool, a spot-check meter and real-time scope, or as a logger for long-term monitoring, for power quality disturbances, and for energy or power consumption studies.

The PQM-707 is well-suited to engineers and technicians in commerical and industrial facilities departments, field services, utility companies, as well as energy managers and power consultants.



The PQM-707 measurement category is CAT IV 600V - higher than most other testing tools. Providing greater peace of mind during every day use, use it with confidence.


The analyzer can be used in power distribution systems to 760V directly, or at switchgear and substations via potential-transformers (PT's) to measure medium and high voltages. (Ratios are programmable.) It can measure both 50/60Hz and DC systems.

BIG DISPLAY- The largest in this class of analyzers

A 7-inch color touch screen overcomes the diificulty seeing clearly when wearing tinted safety visors.


All parameters are measured TO IEC 61000-4-30 STANDARD S-CLASS guaranteeing high accuracy of measurements. Plus power quality to the requirements of European standard EN 50160.

Measurements: Sags (dips), swells, transients, harmonics, unbalance, frequency, crest factor, flicker, inrush current.


Watts, VA, VAr, true Power Factor TPF, displacement Power Factor dPF, kWh, Calculation of Energy Tariffs


Voltage L1, L2, L3, N-G (five inputs) Current L1, L2, L3, N (four inputs)


At a similar size to laptop PC's (11.3" x 8.8" x 3") and 3.9 lbs the PQM-707 is highly portable. Thanks to the built-in lithium-ion battery testing can be performed in the field without connecting an AC adapter; very useful when moving from location to location for spot-checks at multiple loads in a work day. The battery power provides between 4 - 6 hours of operation.


4GB microSD card included. Record data for weeks, transfer data to a PC. Sonel Analysis software (included) plots graphs and displays results for reports.


IP 51 rated; temperature range: -10 to 50°C / 14 to 122°F

The Sonel PQM-707 includes: Optional Current Probes by Model, Range, and Max conductor size

  • Test leads, 3 black, 1 blue, 1 yellow; 1.2 m long each

  • Crocodile clips, 3 black, 1 blue, 1 yellow

  • Magnetic voltage adapters

  • USB cable

  • Carry case

  • Sonel Analysis software for data analaysis

  • Touch pen

  • 4GB MicroSD card

  • Manual

  • AC Adapter

  • 3 year warranty

C-4A 1000 A AC Clamp-on 2" jaw

C-5A 1000 A / 1400 A DC Clamp-on 1.5" jaw

C-6A 10A Clamp-on 0.78" jaw

C-7A100 A Clamp-on 0.9" jaw

F-1A 3000 A Flexible 14" diameter

F-2A 3000 A Flexible 9.25" diameter

F-3A 3000 A Flexible 4.7" diameter (4 included in standard package)


Waveform events

Long term trend plots

 Check connections with phasor diagram

 Real-time waveform oscilloscope




The device is designed to work with networks:

  • with nominal frequency 50/60Hz,

  • with nominal voltage: 64/110 V; 110/190V; 115/200V; 127/220V; 220/380V; 230/400V; 240/415V; 254/440V; 290/500 V; 400/690V.

  • DC network

Supported networks:

  • single-phase,

  • two-phase with common N conductor,

  • three-phase star connection with and without N conductor,

  • three-phase delta.

Parameters of analyzer:

Parameter Measurement range Max. resolution Accuracy
Alternating voltage (TRMS) - 0,0…760,0V 0,01 % Unom ±0,5% Unom

Crest Factor

Voltage 1,00…10,00
(≤1.65 for 690 V voltage)
0,01 ±5%
Current 1,00…10,00 (≤3,6 Inom) 0,01 ± 5%wm
Alternating current
- depending on clamp* 0,01 % Inom ±2% m.v. for m.v. ≥ 10% Inom
±2% Inom  for m.v. < 10% Inom
(error does not account for clamps error)
Frequency - 40,00...70,00 Hz 0,01Hz ±0,05 Hz

Active, reactive, apparent
and distortion power

- depending of configuration
(trasformers, clamp)
up to for
decimal places
depending on configuration
(transformers, clamps)
Active, reactive apparent energy - depending of configuration
(transformers, clamp)
up to for
decimal places
as power error
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 error
Harmonics Voltage as for alternating voltage
True RMS
as for alternating voltage
True RMS
±5% m.v. for m.v. ≥ 3% Unom
±0,15% Unom for m.v.. < 3% Unom
Current as for alternating voltage
True RMS
as for alternating voltage
True RMS
±5% m.v. for m.v.. ≥ 10% Inom
±0,5% Inom for m.v. < 10% Inom
THD Voltage 0.0..100.0%
(in regards to the rms value)
0,1% ±5%
Current ±5%
Flicker severity PST, PLT - 0,40...10,00 0,01 ±10%
Voltage asymmetry Voltage
and current
0,0...10,0% 0,1% ±0,15%
(absolute error)
Inrush current - depending on clamp* 0,01% Inom ±4% m.v. for m.v. ≥ 10% Inom
±4% Inom for m.v. < 10% Inom

*Clamp F-1A, F-2A, F-3A: 0..3000 A (10000 Ap-p) *Clamp C-4A: 0..1000 A (3600 Ap-p)*Clamp C-5A: 0..1000 A (3600 Ap-p)*Clamp C-6A: 0..10 A (36 Ap-p) *Clamp C-7A: 0...100 A (360 Ap-p)