Description
Fluke MI3 Infrared Temperature Sensor Repair
The Fluke MI3 is a fixed infrared pyrometer – it is installed to watch a process continuously and report temperature without contact, often in conditions no handheld instrument would survive.
Is your Fluke MI3 worth repairing?
Installed in numbers and running continuously, which changes the economics: what fails is usually the lens window, the cable or the mounting rather than the sensor head itself. Our answer for the Fluke MI3: Repair. Optics and cabling faults are routine and inexpensive relative to replacement. We evaluate free of charge and quote before any work begins, and if the numbers do not favour repair we say so rather than quoting anyway.
What typically fails on the Fluke MI3
- Cooling or air purge accessory faults.
- Communication or interface faults.
- Lens or window contamination – process material on the optics, which biases every reading low.
- Readings drifted.
- Cable and connector damage – these run through industrial environments and fail before the sensor does.
- Output signal not tracking temperature.
What you get back
Component-level repair rather than assembly swapping, NIST-traceable calibration with the measured results documented, and a 90-day parts-and-labor warranty. Most instruments are back with you inside 5-10 business days.
Fluke Service Center works on Fluke instruments only. Send it in for a free evaluation, or email us with the model and the symptom and we will tell you what to expect before you ship anything.






Reviews
There are no reviews yet.