Pressure Sensor and Transmitters for Special Gas Pressure Measurement

Gas pressure measurement widely exists in industrial process control fields to achieve better controlling and monitoring.

Different gases are different in nature, therefore different pressure sensors and transmitters are required for different gas pressure measurements. Several products are introduced below for pressure measurement of oxygen, hydrogen, and Chlorine.

Oxygen Pressure Measurement

There is around 21% oxygen by volume in the dry air. People extract oxygen from liquefied air and use oxygen in fields such as aerospace & aviation, energy, chemical, metallurgy, medical pharmacy, water treatment etc. Except for compressed oxygen, oxygen itself is not flammable or explosive, but combustion-supporting. For oxygen pressure measurement, it is advisable to opt for cleaning pressure sensors and transmitters with inert oil-filled substances, which greatly reduces the risk of economic and time loss caused by maintenance or failure replacement.

Products for Oxygen Pressure Measurement

MDM4901FL differential pressure transmitter is designed for oxygen pressure measurement. The whole product is clean and it is Fluorolube. oil-filled which helps to prevent the oxidation reaction between the silicon oil and the oxygen, and the occurrence of an explosion effectively.

Meanwhile, the MDM4901FL differential pressure transmitter is produced under an oil-free process to meet the oxygen measurement requirements.

Besides MDM4901FL, we have other pressure sensors and transmitters for oxygen pressure measurement with intrinsic safe type, battery power type, and wireless monitoring type.

Hydrogen Pressure Measurement

Hydrogen (H2), is a gas that is extremely flammable, colorless, and odorless under normal temperature and pressure. Hydrogen has strong reducibility and is widely used in chemical, electronics, automotive, aerospace, and other industries.

Due to the small size of hydrogen atoms, they have the ability to diffuse through the lattice of the diaphragm, typically made of stainless steel, and enter the silicone oil-filled cavity. With time goes by, this infiltrated gas will cause damage to the sensor. However, compared to stainless steel, the gold-plated diaphragm is less permeable and therefore effective in preventing hydrogen penetration.

Products for Hydrogen Pressure Measurement

MPM480GH pressure transmitter is specialized for hydrogen pressure measurement. It has a gold-plated diaphragm which helps to prevent hydrogen penetrating, ensuring long-term and stable performance.

Chlorine Pressure Measurement

Chlorine gas (Cl2) is a yellow-green toxic gas and a strong oxidant that can oxidize with most substances.

Generally, steel, iron, copper, nickel, etc. are resistant to dry chlorine, but once chlorine gas is mixed with a small amount of water, it produces hypochlorous acid and hydrochloric acid, which are highly corrosive to most metals. So the pressure sensors and transmitters for chlorine pressure measure must have special anti-corrosive housing and diaphragm materials to ensure reliable and accurate measurement.

Contact Us

The needs and requirements for gas pressure measurement may vary according to different applications. Besides the pressure sensors and transmitters mentioned above, Micro Sensor has an experienced R&D team, capable of offering customized products and solutions, feel free to contact us with your unique requirements. Email us sales@microsensor.cn or leave messages, we will contact you within 24 hours.