How to choose a power quality analyser
By Grant, Inspection Tool Specialists. Reviewed November 2026.
Three things decide which power quality or energy instrument you need: whether you need a spot check of voltage and current or a continuous record, which parameters you must capture (for example harmonics, power factor or energy use), and whether the readings must be reported against a standard or contract. Answer those first.
Which instrument?
| Need | Instrument | Typical in our range |
|---|---|---|
| Voltage and power checks | Power analyser | PCE-GPA 50 power analyser |
| Clamp-on current and power | Power analyser clamp meter | PCE-PA 8000 power analyser clamp |
| Continuous logging of power and energy | Power and energy data logger | PCE-PA 6500 R11 data logger |
Logging and reports
A logger records readings over days or weeks, which shows peaks, imbalance and energy use patterns. Decide the logging interval and duration before you set up, and check how the data is exported for analysis or reporting.
Safety
Electrical measurements carry risk. Use the correct category rating for the circuit, keep leads in good condition, and follow your electrical safety procedure. Only trained, competent people should connect instruments to live circuits.
Price guide
As a guide to our current range, including VAT: power analysers from about R21,200; clamp analysers from about R43,200; data loggers from about R22,300. Prices change, so check the product pages and confirm the probes and software each quote includes.
Questions we will ask you
Tell us the supply type (single or three phase), what you must measure, whether you need a spot check or a long-term record, the logging interval, the standard or contract you report against, and the records you must keep. With that we can recommend an instrument and provide pricing.