Keller Company Digital Pressure Gauge for Hydrogen Applications LEO Record H2
The digital pressure gauge for hydrogen applications has finally arrived! With logging function.
The high-precision digital pressure gauge LEO Record H2 is a digital pressure gauge that can record pressure and temperature over long periods. By increasing the nickel content in stainless steel, it ensures a low embrittlement rate and a long service life. Additionally, the gold-plated diaphragm minimizes the diffusion of H2. With the RS485 interface, the pressure gauge can be easily connected to a PC for settings and data retrieval. Its high accuracy and safety allow the LEO Record H2 to meet the requirements for measuring instruments in the hydrogen field. 【Features】 • Use of stainless steel with increased nickel content to counter hydrogen embrittlement • Gold-plated diaphragm to minimize hydrogen diffusion • Records pressure and temperature • High data security with non-volatile memory • Ultra-low power consumption / long battery life • Various pressure units selectable (bar, mbar, hPa, kPa, MPa, PSI, kg/cm2, etc.) • Zero point calibration via button • Recording function can be manually started and stopped • Various recording function settings available • Available in intrinsically safe explosion-proof type (LEO-Record-Ei-H2)
basic information
Pressure range: -1 to 3 bar to 0 to 1000 bar (-100 to 300 kPa to 0 to 100 MPa) Accuracy: ± 0.05 %FS Overall accuracy: ± 0.1 %FS @ -10 to 80 °C Interface: RS485
Price range
Delivery Time
Applications/Examples of results
For hydrogen applications
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Pressure Sensors in Hydrogen Engine Racing Cars - Hydrogen Innovation in Motorsports
Keller's pressure sensors play a crucial role in hydrogen engine-equipped racing cars. This is because extremely high precision and reliability are essential in hydrogen systems within motorsports. Keller's pressure sensors are used in fuel cell powertrains, supporting the precise monitoring and control of hydrogen and air circuits under harsh high-performance conditions. 〇 Hydrogen Loop Keller's pressure sensors monitor the flow of hydrogen within the fuel cell by measuring optimal pressure levels, contributing to the realization of efficient electrochemical reactions. 〇 Air Loop Accurate pressure measurement is essential for the optimal management of oxygen supply, which directly affects the efficiency and output of the fuel cell. 〇 High-Pressure Hydrogen Line Keller's pressure sensors are widely adopted in high-pressure hydrogen lines, as well as in hydrogen-powered test benches and onboard storage systems. In motorsports, reliability is paramount in a world where every second counts. Additionally, components that can withstand extreme pressures and rapid changes in load under harsh conditions are indispensable. Using Keller products, which boast the highest standards of precision and reliability and are made in Switzerland, is a testament to a deep commitment to quality. For more details, please refer to the related links below!
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Measuring the pressure of hydrogen - In the case of hydrogen fuel cells
Hydrogen poses a risk of leakage due to its status as the smallest molecule on Earth, which can lead to permeation. It also has highly flammable properties when exposed to air. Therefore, it is crucial to prevent leaks from hydrogen tanks or to detect them early. Keller's pressure sensors are used for leak testing in hydrogen fuel cells. The hydrogen fuel cell has three channels: one for air (oxygen), one for hydrogen, and one for cooling. Nitrogen is used first, followed by hydrogen, to detect leaks within the system. The pressure values at the inlet and outlet of the fuel cell are continuously recorded and displayed on the screen in real-time, allowing for ongoing monitoring. A drop in pressure indicates a leak in one of the three flow paths. Keller's pressure sensors have high accuracy, enabling them to detect leaks even in small areas that are not sealed, ensuring the safe use of fuel cells. For more details, please refer to the related materials below.
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KELLER will exhibit at the Hydrogen and Fuel Cell Exhibition! February 19-21, 2025, at Tokyo Big Sight, East Hall 1, E6-6.
KELLER is a leading manufacturer of piezoresistive pressure sensors. Our specialists, with extensive experience, provide solutions tailored to your specific applications. We respond to the current topic of hydrogen with optimal and sustainable investment-worthy solutions. If you visit our booth, we will gladly answer any questions or concerns you may have about what pressure is, how we can help reduce manufacturing costs through collaboration, and even our A/D conversion processing technology. For those wishing to have meetings or product introductions at our booth on the day of the event, we are accepting reservations in advance. If you are interested, please contact us at sales.jp@keller-pressure.com. 【Exhibition Contents】 〇 Pressure sensors for hydrogen gas: 23SY-H2, 23SY-Ei-H2 (explosion-proof type) These models reduce hydrogen embrittlement rates and minimize hydrogen diffusion. Detailed explanations can be found in the videos linked below! 〇 A wide range of other pressure sensor lineup! - Low pressure and high pressure (0.5 to 200 MPa) - Low temperature to ultra-high temperature (-50 to 1000°C) - High precision - Miniature pressure sensors - Ultra-fast response - Digital pressure gauges
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Challenges of Hydrogen: Measurement Solutions for the Energy Revolution
Hydrogen is at the center of energy conversion, bringing unique possibilities for the decarbonization of industries and the transformation of energy consumption. Hydrogen is considered an environmentally friendly fuel because it does not release harmful exhaust gases such as CO₂, nitrogen oxides, and particulate matter when used for energy generation. However, hydrogen gas, regarded as one of the pillars of the future of energy, faces significant technical challenges in terms of storage, transportation, and measurement. How are KELLER's pressure sensors designed to meet these requirements? KELLER's hydrogen market specialist will answer that! (The article can be found through the related link below) 1. What is hydrogen? 2. Hydrogen as a fuel 3. Storage and transportation of hydrogen Comparison of hydrogen consumption and drum capacity, gaseous hydrogen, liquid hydrogen, and other methods 4. Challenges in pressure transmitters and hydrogen measurement Hydrogen embrittlement, permeation, leakage, ATEX certification, and intrinsic safety explosion protection 5. Introduction to pressure sensors for hydrogen KELLER's pressure sensors for hydrogen are products that meet stringent safety and performance standards, catering to various needs across the entire hydrogen supply chain, including refining, green ammonia production, metallurgy, storage, transportation, and electrolysis!
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KELLER will exhibit at the Hydrogen and Fuel Cell Expo! February 19-21, 2025, at Tokyo Big Sight, East Hall 1, E6-6.
KELLER is a leading manufacturer of piezoresistive pressure sensors. Our specialists, with extensive experience, provide solutions tailored to your unique applications. We respond to the current topic of hydrogen with optimal and sustainable investment-worthy solutions. If you visit our booth, we will gladly answer any questions or concerns you may have about what pressure is, how we can help reduce manufacturing costs through collaboration, and even A/D conversion processing technology. For those who wish to have meetings or product introductions at our booth on the day of the event, we are accepting reservations in advance. If you are interested, please contact us at sales.jp@keller-pressure.com. 【Exhibition Details】 〇 Pressure sensors for hydrogen gas: 23SY-H2, 23SY-Ei-H2 (explosion-proof type) This model minimizes hydrogen embrittlement and diffusion. Detailed explanations can be found in the video linked below! 〇 A wide range of other pressure sensor lineups! - Low pressure and high pressure (0.5 to 200 MPa) - Low temperature to ultra-high temperature (-50 to 1000°C) - High precision - Miniature pressure sensors - Ultra-fast response - Digital pressure gauges