Fluke 51 II Calibration

Description

Fluke 51 Series II Thermometer Calibration and Repair

The Fluke 51 Series II is a handheld single-input digital thermometer (Series II) for thermocouple probes, with fast response and high accuracy for HVAC, food-safety, and field work. Its accuracy depends on the thermocouple input(s), the cold-junction reference, and the measurement electronics, which is where repair and calibration focus.

FlukeMeterRepair.com repairs and calibrates the Fluke 51 Series II for HVAC, food-safety, lab, and field technicians.

Common Fluke 51 Series II problems we fix

• Thermocouple-input faults — a channel not reading correctly or a damaged input jack, repaired.
• Cold-junction / reference drift — the reference reading wrong, recalibrated against standards.
• Reading inaccurate or out of spec — measurement drift, recalibrated.
• Display or interface faults — repaired.
• Battery or input-jack faults.

FAQs

My 51 Series II reads temperature wrong — fixable? Yes. Input and reference faults are repairable, then the thermometer is recalibrated so it reads accurately, with a NIST-traceable certificate.

Are the inputs verified? Yes — each channel is checked against our temperature standards.

Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or request service.