Description
Fluke 5790B AC Measurement Standard Repair
The Fluke 5790B is a primary reference calibrator – the instrument at the top of a laboratory’s traceability chain, which everything else is measured against. Its stability is not one specification among several; it is the entire product, because drift here propagates silently into every calibration the laboratory issues downstream.
June Company repairs and calibrates the Fluke 5790B for calibration laboratories, standards laboratories, metrology departments, and accredited service providers. Every instrument is repaired at component level and verified against reference standards before it ships back, with the measured results documented.
Common Fluke 5790B problems we fix
- Communication or data transfer failures – which breaks automated procedures while the instrument still works manually.
- Display, keypad or interface faults.
- Cooling, fan or power supply faults.
- Output drifted outside specification – the fault that matters most on a primary standard, since every instrument calibrated against it inherits the error without any indication.
- Artifact calibration failing to complete.
- Internal reference or ovenised standard instability.
- One output function or range failing while others hold.
- Range switching or relay faults.
FAQs
One range is out but the rest are fine. Is that a whole-instrument problem? Usually not. Ranges are handled through separate circuitry, so a single failing range often points at something specific and contained.
What if it is not economical to repair? We tell you in the quote. The evaluation is free and there is no obligation to proceed.
Every repair carries a 90-day parts-and-labor warranty, with a firm quote before any work begins. Email us or submit a service request.





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