Description
Fluke 5730A Calibrator Repair
The Fluke 5730A is a high-performance multifunction calibrator — a metrology-grade reference that sources precise DC and AC voltage, current, and resistance to calibrate high-accuracy meters and instruments in primary and secondary calibration labs. Its faults concentrate in the internal reference, the source/output stages, and the range/function switching.
FlukeMeterRepair.com repairs and calibrates the Fluke 5730A for calibration labs and metrology teams.
Common Fluke 5730A 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 (V, I, R) 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 5730A output drifted — fixable? Yes. Reference, output-stage, and switching faults are repairable, then every function is recalibrated against our standards so the instruments 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.





Sean Robertson –
Our Fluke 5730A calibrator started becoming intermittent during test sequences, making it impossible to trust it. Sent to June Company, and they repaired the calibrator very quickly and did a great job.