Power Quality Monitoring
Power quality monitoring differs from a one-off analysis: the analyzer stays connected and records continuously, so that intermittent problems are caught even when nobody is watching. It suits sites with recurring complaints, new connections, or contractual power quality limits.
The recording figures that matter are the statistical interval, the continuous recording time, and the storage. The GF438II shop listing describes a 3-second interval with 728 hours of continuous recording and up to 32GB storage; the E6000 lists a 3-second interval with 120 hours and 8GB. A shorter interval catches shorter events but fills storage faster; choose the interval from the shortest event that must be caught.
A monitoring plan should state the measurement point, the interval, the parameters recorded, the period, and how the data will be reviewed. Set a review date when the monitoring starts; unreviewed recordings help nobody. If the monitoring is for a contract or a dispute, agree the measurement standard and the reporting format before recording starts.
Before ordering, confirm the recording period needed, the interval, the storage, the current probe range, 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.