2024-03-11

The pressure sensor EC79 certification can be used for hydrogen-powered vehicles

The two pressure ranges of AST2000 and AST4000 OEM pressure sensors are 79/2009 / EC approved. This approval is a necessary European Community directive for components and systems intended to be installed on hydrogen-powered vehicles.

AST2000 type and AST4000 type pressure sensors have obtained 79/2009 / EC certification in the range of 2MPa. These pressure sensors are used as components on the vehicle's hydrogen regulator to control the flow of hydrogen to the fuel cell stack. The pressure range of the pressure sensor has also reached 35MPa. The pressure sensor is usually used in 3-level hydrogen tanks for buses, forklifts, automobiles, agricultural machinery, off-road vehicles and fixed backup power systems.

In order to get approved,The AST pressure sensor has been tested in accordance with the EU 406/2010 regulations to verify its compliance with the EC 79/2009 regulations of the European Parliament and the Council of the EU. Requirements and test procedures are established to meet the integrated system safety requirements. With the world's increasing emphasis on green technology and sustainability, hydrogen is highly regarded as an alternative clean fuel carrier to power ground transportation.

The AST2000H2 hydrogen ASIC pressure sensor has received 79/2009 / EC approval, allowing the sensor to be used in high-pressure hydrogen applications up to 900 bar (13,000 PSI). According to the company introduction:

In order to obtain approval, accordingThe EU 406/2010 regulation tests the sensor to verify its compliance with the EC 79/2009 regulations of the European Parliament and the Council of the European Union.

The pressure sensor is the world's firstThe EC79 certified sensor can be used in hydrogen-powered vehicles with a pressure range of up to 900 Bar. The innovative threaded high-pressure seal design enables the sensor to withstand extreme cold and high temperature and high operating pressure conditions. Other unique design features include a full 316L SS wet sensing element with a thick pressure diaphragm, and a one-piece structure without welds, internal O-rings or oil injection cavities. This sensor is ideal for hydrogen applications that present daunting operational challenges such as hydrogen permeation and embrittlement that often cause many other pressure sensors to fail.

Electrically, these sensors provide common automotive and industrial output signals, such0.5-4.5VDC proportional (5.0 VDC power supply) or 1-5VDC and 4-20mA(10-28VDC power supply). In the entire operating temperature range of -40 to 85°C, the signal is stable and linear, with a typical total error band of/- 2.0.

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