High-pressure applications: discover Fuji Electric's new FKR pressure transmitter

Measurement accuracy and long-term stability

In critical environments, the slightest measurement drift can impact the entire production line. Thanks to its piezoresistive technology and optimized digital electronics, the pressure transmitter FKR offers an accuracy of ± 0.065% of the set measurement range.

What's more, it delivers precise pressure measurement over the entire applied pressure range.

Its excellent long-term stability significantly reduces the frequency of recalibrations. Its high reactivity instantly captures rapid process variations.

This level of high-pressure sensor accuracy gives you continuous, reliable measurements that enhance safety, reduce unplanned downtime and improve the efficiency of your high-pressure systems.

Extended measuring range

Designed to meet the most demanding challenges, the high-pressure transmitter FKR is available in two versions:

• The high-pressure transmitter - FKR - 70 MPa (700 bar): ideal for most high-pressure processes, it combines compactness with controlled cost.
• The high-pressure transmitter - FKR - 150 MPa (1,500 bar): designed for extreme applications, it ensures intact reliability even at the highest pressures.

These two models cover all industrial needs without multiplying the number of references, while guaranteeing optimum precision over the entire measurement range.

Thanks to their great rangeability, these pressure transmitters avoid the need for multiple instruments, and guarantee optimum accuracy over the entire measurement range. Measurement range adjustment remains simple via the HART interface or local display, facilitating maintenance and measurement continuity as your requirements change.

A high-pressure gold membrane transmitter for hydrogen

For applications involving hydrogen, Fuji Electric offers the FKR high-pressure transmitter in a version with a gold coating on the diaphragm.

This gold coating forms the pressure transmitter 's dense, chemically inert barrier to hydrogen: its crystalline structure slows down the diffusion of hydrogen atoms (H₂), limits leakage and protects the membrane from corrosion. By preventing hydrogen from embrittling the metal, it extends sensor life and preserves measurement reliability even during repeated pressure cycles.

This makes the high-pressure hydrogen transmitter FKR the preferred choice for test benches, electrolyzers and hydrogen filling stations, where reliability and safety are paramount.

Robust materials and corrosion protection

The gauge pressure transmitter FKR relies on two proven alloys to withstand the harshest environments:

• Inox 318LN: duplex steel combining high mechanical strength and excellent resistance to pitting corrosion, ideal for aggressive fluids and chloride-rich media.
• Alloy 625: nickel-chromium-molybdenum alloy offering exceptional resistance to stress corrosion, oxidation and high temperatures.

Thanks to the combined robustness of the two alloys, Fuji Electric's high-pressure transmitter withstands pressure cycles, vibration and erosion, maintaining its performance over the long term, even in the most corrosive environments or under extreme pressure.

HART communication and non-contact configuration: flexibility, safety and industrial compatibility

Thanks to the three magnetic buttons integrated into the local display, the pressure transmitter can be configured without opening the housing or interrupting the process. A simple magnetic stylus can be used to set zero, scale or run diagnostics, even in ATEX environments.

Coupled with the HART protocol (version 7), control of the sensor extends to the control room: technicians adjust parameters remotely, monitor trends and validate tests without having to travel.

These two features not only save time on every job, but also help maintain the durability of your high-pressure systems.

SIL 2/3 and ATEX compliant: maximum safety for demanding environments

In addition to these features, the new FKR gauge pressure transmitter is SIL2/3 and ATEX certified.SIL qualification ensures the reliability of safety systems and limits the need for nuisance shutdowns, while ATEX conformity guarantees direct installation in explosive zones without the need for costly or cumbersome additional protection.

Thanks to these two compliances, Fuji Electric's pressure transmitter - high pressure integrates easily into your installations, protects your teams and equipment, and simplifies your regulatory compliance procedures.

By combining constant pressure measurement accuracy, open connectivity to supervision and a non-contact configuration designed for safety, the FKR gauge pressure sensor offers a complete response to the requirements of high-pressure applications: technical performance, ease of operation and operational peace of mind.

Versatile and designed to withstand extreme conditions, the pressure transmitter - high pressure covers a wide spectrum of industries.

• Hydrogen and clean energy: test benches, compressors, electrolyzer filling stations.
• Refining and petrochemicals: hydrogenation circuits, cracking units and high-pressure distillation columns.
• Oil & Gas: Offshore and onshore oil drilling, shale gas extraction, high-pressure reservoirs.
• Fine chemicals and pharmaceuticals: catalytic reactors and autoclaves requiring reliable pressure control.
• Power generation: supercritical steam circuits for thermal power plants, high-pressure hydraulics and energy storage.
• Test benches and R&D: valve qualification, fatigue tests on aeronautical components, validation of automotive parts.
• Gas transport and storage: pipelines, compressor stations, LNG tanks.

At every stage of these processes, the precision, robustness and certifications of pressure transmitter - FKR ensure safe operation, optimized performance and reduced maintenance costs.