Description
Fluke 77 II Multimeter Repair and Calibration
The Fluke 77 II is a rugged handheld digital multimeter — a long-serving general-purpose meter measuring AC/DC voltage, current, resistance, continuity, and diode test for everyday electrical work. Its accuracy depends on the input/measurement circuitry, so that’s where repair and calibration focus.
June Company repairs and calibrates the Fluke 77 II for electricians and maintenance technicians.
Common Fluke 77 II problems we fix
- Readings inaccurate or out of spec — measurement-circuit drift, recalibrated against standards.
- A function dead — input or range-circuit faults, often after an overload, repaired.
- Input protection blown — fuse/protection circuit repaired after a miswire.
- Rotary-switch faults — intermittent function selection from a worn switch, repaired.
- Display or power faults.
FAQs
It’s an older 77 II — still repairable? Yes. These are rugged and very serviceable; input and measurement faults are repairable, then the meter is recalibrated so all functions read accurately, 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 submit a service request.




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