Description
Fluke 5720A Calibrator Repair
The Fluke 5720A is a high-performance multifunction calibrator — a metrology-grade reference that sources precise DC and AC voltage, current, and resistance with artifact-calibration support to calibrate high-accuracy meters and instruments in primary 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 5720A for calibration labs and metrology teams.
Common Fluke 5720A problems we fix
- Artifact-calibration faults — the artifact-cal routine not running correctly, repaired.
- Reference / output 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.
FAQs
My 5720A drifted or artifact cal won’t run — 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.





Rene Walker –
They replaced our entire front panel as well as the keypad, really making our Fluke calibrator back to full functionality.
K.T. –
We sent our Fluke 5720A calibrator in for sever errors and June Company repaired each failed board and sent us a repair evaluation form before the repair and a repair report after the repair. Happy with the results.