In hazardous environments, pressure measurement equipment must do more than deliver accurate readings. It must also operate safely in potentially explosive atmospheres while maintaining reliable performance under extreme pressure conditions.
The HP1000 Series from ESI Technology combines both requirements in a single solution. Designed for pressures up to 5,000 bar (72,500 psi), the Intrinsically Safe HP1000 provides dependable pressure measurement for demanding applications in hazardous gas, dust, and mining environments. With ATEX and IECEx certification available on 4-20 mA versions, engineers can confidently specify the HP1000 for use in some of the world's most challenging industrial locations.
Designed for Hazardous Areas
Many industries operate in environments where explosive gases, vapours, dust, or combustible particles may be present. In these areas, safety is a critical consideration when selecting instrumentation.
The Intrinsically Safe HP1000 has been designed to minimise the risk of ignition by limiting the electrical energy available within the device. This allows the transmitter to operate safely within designated hazardous areas when installed as part of an approved intrinsically safe system.
With both ATEX and IECEx certification options available, the HP1000 offers a globally recognised solution for hazardous area pressure measurement. These approvals help simplify specification and installation for projects operating across international markets and industry sectors.
As a result, engineers can select the HP1000 with confidence for applications where safety, compliance, and reliability are essential.
ATEX and IECEx Certified
The HP1000 Series is available with Intrinsically Safe approval to both ATEX and IECEx standards on 4-20 mA output versions.
ATEX certification supports compliance with European hazardous area requirements, while IECEx certification provides international recognition for equipment used in explosive atmospheres. Together, these approvals make the HP1000 suitable for a wide range of industrial applications around the world.
Industries that commonly benefit from Intrinsically Safe pressure measurement include:
- Oil and gas production
- Chemical processing
- Hydrogen production and storage
- Industrial gas systems
- Offshore platforms
- Fuel handling facilities
- Mining operations
- Energy generation plants
- Test and research facilities
In these environments, reliable pressure monitoring plays a vital role in maintaining both operational efficiency and safety.
Built for Extreme Pressure Applications
While hazardous area approval is essential, many applications also require pressure measurement at exceptionally high pressures.
The HP1000 Series uses a unique one-piece titanium sensing assembly. Unlike conventional designs that rely on welded diaphragms, the HP1000 machines both the diaphragm and pressure housing from a single piece of titanium alloy.
This design eliminates welds within the pressure boundary, increasing strength and improving long-term reliability. It also provides excellent resistance to pressure spikes, shock loading, and cyclic pressure conditions.
Furthermore, titanium offers outstanding corrosion resistance, helping the transmitter perform reliably in aggressive industrial environments.
Proven Silicon-on-Sapphire Technology
At the heart of the HP1000 is ESI Technology's proven Silicon-on-Sapphire (SOS) sensor technology.
SOS technology delivers excellent accuracy, long-term stability, and repeatability. It also performs reliably across wide temperature ranges, making it particularly well suited to demanding industrial applications.
The sapphire substrate provides exceptional electrical insulation, helping to maintain stable performance even in harsh operating conditions. This allows engineers to achieve accurate pressure measurement throughout the transmitter's service life while reducing maintenance requirements.
Supporting Hydrogen Applications
As the hydrogen sector continues to expand, pressure measurement equipment must withstand both high pressures and the unique challenges associated with hydrogen.
For these applications, ESI offers the HP1000H, a hydrogen-compatible version of the HP1000 Series. The HP1000H uses hydrogen-compatible titanium wetted parts and undergoes testing in accordance with ISO 11114 standards.
Each hydrogen-approved transmitter is supplied with certification confirming its suitability for hydrogen service.
Combined with Intrinsically Safe ATEX and IECEx approvals, the HP1000H is particularly well suited to hazardous hydrogen applications, including:
- Hydrogen refuelling stations
- Hydrogen storage systems
- Electrolysers
- Hydrogen distribution networks
- Research and development facilities
- Fuel cell testing systems
A Trusted Solution for Critical Applications
The Intrinsically Safe HP1000 Series combines high-pressure capability, robust titanium construction, Silicon-on-Sapphire sensor technology, and internationally recognised hazardous area approvals in a single pressure transmitter.
Whether installed on offshore platforms, within chemical processing plants, in hydrogen infrastructure, or at industrial test facilities, the HP1000 delivers the performance, reliability, and safety engineers depend on.
For organisations operating in hazardous environments, the HP1000 provides a proven solution for accurate high-pressure measurement without compromising safety or performance.
For more information or to discuss your application, contact the ESI Technology sales team at This email address is being protected from spambots. You need JavaScript enabled to view it. or call +44 (0)1978 262255.
The HP1000H: High-Pressure Measurement for Hydrogen Applications
As hydrogen technologies continue to grow, so does the need for pressure measurement equipment that can operate safely and reliably in demanding hydrogen environments. From production and storage to transportation and refuelling, hydrogen systems often involve high pressures and challenging operating conditions.
The HP1000H from ESI Technology has been specifically developed to meet these requirements. Based on the proven HP1000 platform, the HP1000H combines high-pressure capability, hydrogen-compatible materials, and robust sensor technology to provide accurate and dependable pressure measurement across the hydrogen value chain.
Designed for pressures up to 5,000 bar (72,500 psi), the HP1000H offers engineers a trusted solution for critical hydrogen applications.
Engineered for Hydrogen Service
Hydrogen presents unique challenges for pressure measurement equipment. Its small molecular size can affect materials differently from many other gases, making material selection a critical part of transmitter design.
To address these challenges, ESI developed the HP1000H using hydrogen-compatible titanium wetted parts. Each unit undergoes testing in accordance with ISO 11114 standards, which assess the suitability of metallic materials for hydrogen service.
ESI also supplies hydrogen-approved versions with certification confirming their compatibility with hydrogen applications. This gives engineers confidence that the transmitter has been specifically designed and tested for use within hydrogen systems.
Supporting the Hydrogen Economy
As investment in hydrogen infrastructure accelerates worldwide, reliable pressure monitoring plays a key role in ensuring efficiency, safety, and system performance.
The HP1000H is suitable for a wide range of hydrogen applications, including:
- Hydrogen production systems
- Electrolysers
- Hydrogen storage vessels
- Hydrogen distribution networks
- Hydrogen refuelling stations
- Fuel cell development and testing
- Research and development facilities
- High-pressure gas compression systems
In many of these applications, pressure measurement is critical for process control, equipment protection, and regulatory compliance.
Built for Extreme Pressures
Hydrogen systems frequently operate at very high pressures, particularly in storage and refuelling applications. As a result, pressure transmitters must be able to withstand demanding operating conditions while maintaining measurement accuracy.
The HP1000H uses a unique one-piece titanium sensing assembly. Unlike conventional pressure transmitters that rely on welded components, the diaphragm and pressure housing are machined from a single piece of titanium alloy.
This design removes welds from the pressure boundary, improving structural integrity and reducing potential points of failure. It also provides excellent resistance to pressure spikes, fatigue, and cyclic loading.
Combined with the natural corrosion resistance of titanium, this robust construction helps ensure long-term reliability in demanding hydrogen environments.
Proven Silicon-on-Sapphire Sensor Technology
At the heart of the HP1000H is ESI Technology's Silicon-on-Sapphire (SOS) sensor technology.
SOS technology offers exceptional long-term stability, excellent accuracy, and reliable performance across wide temperature ranges. These characteristics are particularly important in hydrogen applications, where operating conditions can vary significantly.
The sapphire substrate provides outstanding electrical insulation and contributes to the sensor's durability and measurement stability over time.
As a result, the HP1000H delivers dependable pressure measurement with minimal drift, helping to reduce maintenance requirements and improve long-term system performance.
ATEX Certification for Hazardous Areas
Many hydrogen applications operate in potentially explosive atmospheres, making hazardous area certification an important consideration.
To support these environments, the HP1000H is available with ATEX Intrinsically Safe approval on 4-20 mA versions. This certification enables installation within designated hazardous areas when used as part of an approved intrinsically safe system.
By combining hydrogen compatibility with hazardous area certification, the HP1000H provides a practical solution for applications where both safety and performance are critical.
A Pressure Transmitter Designed for the Future of Hydrogen
The transition towards cleaner energy continues to drive investment in hydrogen technologies. As systems become more advanced and operating pressures increase, dependable pressure measurement becomes increasingly important.
The HP1000H combines hydrogen-compatible materials, high-pressure capability up to 5,000 bar, proven Silicon-on-Sapphire technology, and optional ATEX certification in a single robust transmitter.
Whether monitoring hydrogen production, storage, transportation, or refuelling systems, the HP1000H delivers the accuracy, durability, and reliability engineers need to support the next generation of hydrogen infrastructure.
For more information or to discuss your application requirements, contact the ESI Technology sales team at This email address is being protected from spambots. You need JavaScript enabled to view it. or call +44 (0)1978 262255.
