EXTECH 382091 3-Phase Power Analyzer/Datalogger (50 Hz,1000A)

Extech 382091 1000 A Three-Phase Power Analyser & Datalogger

The Extech 382091 is a 1000 A three-phase power analyser and datalogger built for electricians, energy auditors, plant engineers, and electrical contractors in Ireland who need a portable instrument for power and energy measurement on three-phase distribution systems. Powerpoint Engineering supplies the Extech 382091 alongside our wider electrical test instrument range, with calibration support and accessories to keep it accurate across the working life of the unit.

For sites where a permanent power quality meter would be over-specified, but a clamp meter alone is not enough, a portable three-phase power analyser fills the gap. The 382091 delivers it in a CAT III 1000 V handheld with the data logging needed for an audit-ready report.

What the Extech 382091 measures

• True RMS voltage and current across all three phases plus neutral, in 3P4W and 3P3W configurations.
• Active, reactive, and apparent power, total and per phase.
• Power factor and frequency, with 50 Hz operation matched to Irish distribution.
• Energy values integrated over the logging period.
• Harmonic distortion for basic harmonic assessment.
• Voltage and current dips and inrush with timestamped trigger events.
• Up to 1000 A AC current measurement using clamp probes supplied with the kit, sufficient for typical building incomers and large plant feeders.

Recorded data exports as PDF and to the Extech datalogger software, ready for inclusion in an energy audit report or a fault investigation.

Specifications: what to confirm before you order

The kit contents typically include the analyser, three flexible 1000 A clamp probes, voltage test leads, USB cable, software, and case. Verify the kit specification against your typical work before you order.

Target users and applications

• Energy auditors and consultants carrying out short-term energy and PQ surveys
• Plant engineers and facility maintenance teams investigating load profiles and intermittent issues
• Electrical contractors providing pre-commissioning and acceptance reports for clients
• Industrial maintenance teams capturing power data on incoming feeders during a planned outage
• Building services electricians measuring HVAC and lighting feeders for refurbishment projects

Typical applications include energy use assessments on supply incomers, load profiling on distribution boards, voltage and current dip investigation, harmonic distortion screening, and PQ data capture as part of a wider electrical survey. For larger fleets or permanent installations, the more capable Unipower Unilyzer 900 Class A power quality analyser is the right step up; for routine fault finding, a True-RMS clamp meter such as the Fluke 373 may be sufficient.

Powerpoint Engineering supplies the Extech 382091 alongside our wider calibration and repair services, so the analyser stays trusted across its working life.

FAQs

What is the difference between the Extech 382091 and the 382090?

Both are three-phase power analyser dataloggers from the same Extech family. The 382091 includes the 1000 A clamp probes; the 382090 is supplied without the high-current clamps. Choose the kit that matches the typical feeder current you measure on site.

Can the 382091 handle 1000 A continuous current?

The clamp probes supplied with the 382091 are rated for AC current up to 1000 A, sufficient for typical building incomers, large plant feeders, and most industrial distribution boards. For higher currents, additional accessories or a different platform may be required.

Does the Extech 382091 need calibration?

Yes. As a measurement instrument used for energy audit and acceptance reporting decisions, the Extech 382091 should be recalibrated periodically. Powerpoint Engineering's calibration laboratory recalibrates portable power analysers and supplies a traceable certificate.

To match the right Extech 382091 configuration to your typical site work, request a quote or speak to our team for compatibility advice.