Description
Fluke 5320A Electrical Tester Calibrator Repair
The Fluke 5320A is a multifunction electrical tester calibrator — a metrology-grade source that calibrates electrical safety testers (insulation testers, ground-bond testers, hipot testers, loop/RCD testers, and multimeters) by sourcing and measuring the precise signals those instruments check. Its faults concentrate in the internal reference, the source/output stages, and the range/function switching.
FlukeMeterRepair.com repairs and calibrates the Fluke 5320A for calibration labs servicing electrical-safety testers.
Common Fluke 5320A problems we fix
- Output-accuracy / reference drift — the reference or an output stage drifting, which compromises every cal it performs, recalibrated against standards.
- A function out of spec — a specific output (resistance, voltage, current) drifting, repaired and recalibrated.
- Range / function switching faults — the output routing/relays, restored.
- A function dead — an output path failed, often after a miswire, repaired.
- Communication or display faults.
FAQs
My 5320A output drifted or a function is dead — fixable? Yes. Reference, output-stage, and switching faults are repairable, then every function is recalibrated against our standards so the testers it calibrates are trustworthy, with a NIST-traceable certificate.
Are all functions verified? Yes — each output function is checked against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.





Fred Thompson –
Our Fluke calibrator started having random issues with the display, output and results. We had it repaired with June Company and the results were great. The repair time took three weeks, but they said it was due to parts.