Description
Fluke 718-30G Pressure Calibrator Repair
The Fluke 718-30G is a pressure calibrator with an integrated hand pump – the pump, the sensor and the mA loop electronics all live in one handheld body, which is what makes it a genuinely one-handed field tool and also what gives it a failure mode the pumpless models do not have. At 30 psi this is a low-range instrument, which changes what goes wrong with it: a given zero offset is a far larger share of full scale than it would be on a high-range unit, and the sensor is easy to damage by connecting it to a line it was never rated for.
The Fluke 718-30G is repaired at June Company by certified technicians who work on this class of instrument daily, for process technicians, refinery and plant instrument crews, and field calibration teams. Every instrument is repaired at component level and verified against reference standards before it ships back, with the measured results documented.
Common Fluke 718-30G problems we fix
- Pressure readings drifted out of tolerance – sensor drift, corrected and verified.
- mA loop or 24V supply faults.
- Fine-adjust vernier seized – the adjustment screw no longer trimming pressure smoothly.
- Pump will not build or hold pressure – worn pump seals and O-rings, the single most common 718 repair.
- Slow pressure decay – a leak in the pump body, manifold or fittings – the unit builds pressure then bleeds off.
- Vacuum side not pulling – the pump’s vacuum path specifically, which often fails while the pressure side still works.
FAQs
What if it turns out not to be worth repairing? We tell you that in the quote. The evaluation costs nothing and there is no obligation to proceed.
Can you rebuild the pump rather than replace the instrument? In most cases yes. The pump is a serviceable assembly and rebuilding it is far cheaper than replacement.
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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