Description
Fluke 5790A AC Measurement Standard Repair
The Fluke 5790A is an AC measurement standard — a primary-lab-grade AC/DC transfer standard that measures AC voltage with very low uncertainty to characterize calibrators and AC sources. Its precision lives in the thermal transfer / measurement circuitry and the internal reference, which is where service and calibration focus.
FlukeServiceCenter.com repairs and calibrates the Fluke 5790A for national metrology institutes, primary calibration laboratories, and military standards labs.
Common Fluke 5790A problems we fix
- Measurement accuracy out of spec — AC measurement drifting beyond its tight standard-grade spec, recalibrated against standards.
- Input / transfer-circuit faults — the measurement input or transfer path not reading correctly, repaired.
- Reference drift — the internal reference out of spec, recalibrated.
- Won’t communicate — the remote interface, repaired.
- Power-supply or display faults.
FAQs
My 5790A is out of spec — fixable? Yes. Input and reference faults are repairable, then the standard is recalibrated against our standards so its AC measurement is accurate, with a NIST-traceable certificate.
Is it 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.





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