Description
Fluke 8508A Reference Multimeter Repair
The Fluke 8508A is a reference (8.5-digit) bench multimeter — a primary-lab-grade DMM with exceptional accuracy and stability for DC/AC voltage, current, and resistance, used as a reference standard. Its precision lives in the ultra-precision input/measurement circuitry and the internal reference, which is where service and calibration focus.
FlukeMeterRepair.com repairs and calibrates the Fluke 8508A for calibration labs, electronics-manufacturing lines, and R&D engineers.
Common Fluke 8508A problems we fix
- ADC-board restoration — the converter board causing inaccurate or unstable readings, restored.
- Input-amplifier recalibration — the input stage out of spec, repaired and recalibrated against standards.
- Relay replacement — worn input/range relays causing intermittent or wrong ranges, replaced.
- Won’t communicate — the remote (GPIB/LAN/USB) interface, repaired.
- Power-supply or display faults.
FAQs
My 8508A is out of spec — fixable? Yes. Input and reference faults are repairable, then the meter is recalibrated against our standards so every range is accurate to reference-grade spec, with a NIST-traceable certificate.
Do you calibrate all functions? Yes — every range is checked against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.





Reviews
There are no reviews yet.