Description
Fluke 434-II Power Quality Analyzer Repair
The Fluke 434-II is a three-phase power quality and energy analyzer — it measures voltage, current, power, harmonics, PQ events, and energy-loss/cost across all phases (with current probes) to IEC 61000-4-30 for power-quality surveys and energy studies. Its accuracy depends on the voltage and current measurement inputs, so that’s where service and calibration focus.
FlukeMeterRepair.com repairs and calibrates the Fluke 434-II for power-quality engineers, plant managers, and utility teams.
Common Fluke 434-II problems we fix
- Input-protection restoration — protection damaged after an over-range input, repaired.
- Current-input or probe channel faults — a phase not reading from its probe, repaired so all phases measure.
- Readings out of spec — measurement-circuit drift, recalibrated against standards.
- Won’t power on or hold a charge — battery and power faults.
- Display or input faults.
FAQs
One phase isn’t reading on my 434-II — fixable? Yes. Input-channel and protection faults are repairable, then all inputs are recalibrated so power, harmonics, and PQ measurements are accurate, with a NIST-traceable certificate.
Are the current inputs verified? Yes — checked against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.
Sean Read –
Our Fluke 434- II power quality analyzer needed repair from the display because the meter seemed to function but no display. Sent in for evaluation and a great job was performed. Did not expect the level of repair and calibration documentation for our Fluke power logger.