Description
Fluke 43B Power Quality Analyzer Repair
The Fluke 43B is a handheld power quality analyzer — a single-phase instrument that measures voltage, current, power, harmonics, and captures transient/PQ events with scope and meter modes, for power-quality troubleshooting. 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 43B for power-quality engineers, plant managers, and utility teams.
Common Fluke 43B problems we fix
- Input-channel faults — a voltage or current input not reading correctly, often after an over-range event, repaired.
- 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
My 43B readings are off — fixable? Yes. Input and measurement faults are repairable, then the inputs are recalibrated so power, harmonics, and PQ measurements are accurate, with a NIST-traceable certificate.
Are the inputs verified? Yes — voltage and current inputs are checked against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.





Reviews
There are no reviews yet.