Power Quality Analysis
Power quality analysis is the work of recording voltage, current, harmonics, flicker, dips, swells and interruptions on a supply, and then explaining what caused them. It starts from a complaint — equipment tripping, lights flickering, meters disagreeing — and ends with evidence, not a guess.
Handheld analyzers in the manufacturer's range, such as the GF438II and the GF4385, record multiple parameters at once: the GF438II shop listing describes up to 1000 power energy parameters simultaneously, with long continuous recording and large storage. The E6000 lists 461 parameters with periodic logging and customized reports. The right comparison is not the parameter count alone, but which parameters the investigation needs, over what period, and under which measurement standard.
A power quality investigation should record the measurement point, the period, the load and supply conditions, and the events found, with time stamps that can be matched against plant logs. Time synchronization matters here: if the analyzer clock and the plant clock disagree, an event cannot be matched to its cause.
Before ordering, confirm the parameters needed, the recording period, the current probe range, the measurement standard, and the delivery terms. Ask for the current datasheet to be confirmed in writing before ordering.
Figures on this page come from the manufacturer's own category pages, manufacturer-hosted datasheets, or a shop listing stated as such. Where the reference material does not settle a figure, this site states that it is unresolved and publishes no figure, rather than choosing one.
What to confirm before ordering
Before payment, confirm the model, the specification from the current datasheet, the quantity, the price, the lead time, and the delivery terms, in writing. Ask in your inquiry to confirm the payment terms, the trade terms, and the reply time you should expect, rather than assuming any of them. No price, minimum order or lead time figure is stated on this site.
Send an inquiry: include the model, the test or measurement requirement, and the quantity you need. Before payment, confirm the model, the specification from the current datasheet, the quantity, and the delivery terms.