Description
Fluke 729 Pressure Calibrator Repair
The Fluke 729 is an automatic pressure calibrator: it pumps to a target pressure and then fine-adjusts itself to hold that setpoint, running a full calibration sequence with minimal operator input, and documents the results. The automation is the value – and the internal pump, the control valve and the closed-loop electronics that deliver it are what need service.
The Fluke 729 is repaired at June Company by certified technicians who work on this class of instrument daily, for process calibration teams, plant instrument departments, and documenting calibration programs. Every instrument is repaired at component level and verified against reference standards before it ships back, with the measured results documented.
Common Fluke 729 problems we fix
- Documentation or data transfer failures.
- Display and battery faults.
- Will not reach or hold setpoint automatically – the closed-loop control – pump, valve and electronics diagnosed together.
- Internal pump weak or not running – the electric pump assembly, rebuilt or repaired.
- Pressure decays during a test – leaks in the manifold or seals, which defeat automatic hold entirely.
- Sensor drifted out of tolerance – corrected and verified against reference standards.
- HART communication faults – the instrument no longer talking to the transmitter.
FAQs
Can you work on an instrument that is out of warranty or discontinued? Yes. Most of what we service is past its manufacturer support window, and component-level repair is exactly what that situation needs.
It pumps up but cannot hold the setpoint – pump or leak? Most often a leak. Automatic hold has no tolerance for a slow decay, so a leak that a manual calibrator would shrug off stops the 729 working.
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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