Description
Fluke 712 RTD Calibrator Repair
The Fluke 712 is a handheld temperature calibrator – it sources and measures thermocouple or RTD signals directly, so a technician can check a transmitter or a loop in the field without carrying a temperature source. The accuracy lives entirely in its input and output stages and, for thermocouple work, in cold-junction compensation.
June Company repairs and calibrates the Fluke 712 for process instrument technicians, plant calibration teams, and field service engineers. Every instrument is repaired at component level and verified against reference standards before it ships back, with the measured results documented.
Common Fluke 712 problems we fix
- Display, keypad or interface faults.
- Source or measure readings drifted out of tolerance – the input and output stages, corrected and verified independently.
- Cold-junction compensation errors – the thermocouple-specific fault – readings that are wrong by an amount which changes with ambient temperature, which is what makes it so easy to misdiagnose.
- One sensor type failing while others work – individual RTD or thermocouple type ranges, which fail separately.
- Loop measurement or 24V supply faults.
- Connector or terminal wear – miniature thermocouple jacks take a lot of insertion cycles and eventually stop making reliable contact.
- Battery, charging and power faults.
FAQs
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.
How long does a repair take? Most are completed in 5-10 business days, with a firm quote after evaluation and before any work starts.
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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