Description
Fluke 741B Process Calibrator Repair
The Fluke 741B is a process calibrator – it sources and measures the signals a plant’s instrumentation runs on: milliamp loops, voltage, RTDs, thermocouples, frequency and pressure through external modules. It is several instruments in one case, so faults are usually confined to one function.
June Company repairs and calibrates the Fluke 741B for process instrument technicians, plant calibration teams, refinery maintenance crews, 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 741B problems we fix
- One function failing while the others work.
- Thermocouple or RTD readings inaccurate.
- HART communication faults – the instrument no longer talking to the transmitter, which is separate from any measurement problem.
- Pressure module not recognised – frequently the interface in the calibrator rather than a failed module.
- 24V loop supply not driving a transmitter.
- Display, keypad or interface faults.
- Battery, charging or power faults.
- mA source or measure out of tolerance – the function these instruments are used for most, and the first place drift shows.
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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