Fluke 77 Calibration

Description

Fluke 77 Multimeter Calibration and Repair

The Fluke 77 is the original rugged handheld digital multimeter measuring AC/DC voltage, current, resistance, and continuity with an analog bar graph for general electrical work. Its accuracy depends on the input/measurement circuitry, so that’s where repair and calibration focus.

FlukeMeterRepair.com repairs and calibrates the Fluke 77 for electricians, technicians, and calibration teams.

Common Fluke 77 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.
• Range or analog-bar-graph faults — repaired and recalibrated.
• Input protection blown — repaired after a miswire.
• Rotary-switch, display, or battery faults.

FAQs

My 77 reads wrong or a function is dead — fixable? Yes. 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 request service.