Pressure Sensors and Safe Drinking Water Systems

Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you.

Pressure Sensors and Safe Drinking Water Systems

Surprisingly, with all the water on planet Earth, less than 1% of all water is fresh and accessible. To ensure a fresh water supply, International Standard / American National Standard “NSF/ANSI 61 Drinking Water System Components – Health Effects” was initially adopted in June 1988 and has been revised and updated frequently with the most recent version revised December 2021. This Standard establishes minimum health effects requirements for the chemical contaminants and impurities that are indirectly imparted to drinking water from products, components, and materials used in drinking water systems.

The standard defines a point-of-entry (POE) system as a system with a minimum initial clean-system flow rate of no less than 15 L/min at 103 kilopascals pressure drop and 18 ± 5 °C water temperature (not less than 4 gal/min at 15 psig pressure drop and 65 ± 10 °F water temperature) used to treat the water supply at a building or facility for drinking, washing, and flushing or for other non-consumption water supply purposes. A pressure sensor from All Sensors’ media isolated SPA 402 family could measure and verify these pressure levels as part of a safe water supply.

All Sensors | SPA 402 Series

Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog.
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Media Isolated Pressure Sensors

Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities and you. In this blog we’ll be discussing media isolated pressure sensors.

Media Isolated Pressure Sensors

Unlike many other sensor applications, pressure sensors frequently have to contact some pretty nasty chemicals. Sensor manufacturers usually qualify their sensors for restricted usage with statements such as “intended for use with non-corrosive, non-ionic working fluids such as air, dry gases, etc.” This means that the user who has an application that does not meet these criteria, either cannot use a product that meets all the other application requirements or has to take steps to protect the sensor and assume any risk regarding the protection methodology.

In contrast, sensors designed specifically for harsh environments open many new applications in areas including medical, environmental controls, plant and mechanical engineering as well as automotive. In many cases, the technology changes for these more rugged sensors from a silicon, microelectromechanical system (MEMS) material to a ceramic material but still retains a monolithic design. A flush membrane makes it easy to interface these types of pressure sensors to hydraulic fluids and even extends the pressure range up to 6000 PSI. With the CPM 602 series, All Sensors now participates in these more demanding applications.

CPM 602

A ceramic pressure sensor overcomes many of the limitations of silicon-based MEMS pressure sensors.

What do you think/Comments?
Do you have a pressure sensing question? Let me know and I’ll address it in an upcoming blog.
-Han Mai, Senior Marketing Specialist, All Sensors Corporation ([email protected])