Description
Fluke 434 Energy Analyzer Repair
The Fluke 434 is a three-phase power quality and energy analyzer — it measures voltage, current, power, harmonics, and PQ events 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 for power-quality engineers, plant managers, and utility teams.
Common Fluke 434 problems we fix
- 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.
- Harmonics / power measurement off — the analysis circuitry, restored.
- 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 — fixable? Yes. Input-channel 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.





Martin Thomas –
Our Fluke 434 power analyzer display was broken or at least black. We sent in for repair, and they completely replaced the display and upgraded the firmware as well. We also had ISO-9001 calibration certification for the meter as well.