ABSOLUTE PRESSURE SENSOR
Hermetically Sealed (optional)
-67°F (-55°C) to 257°F (125°C)
5 to 2000 Hz up to 20 g’s
10 million cycles
4.2 oz. (approx.)
The 4HS-Absolute utilizes a unique, highly accurate thin film media isolated sense element in a fully welded and sealed assembly. Measurement elements provide sensing without the need for an isolation diaphragm. A “can style” isolation flexure provides separation of the measuring and conditioning circuits from the pressure media. Internal components are protected from exposure to harmful gases and liquids in the environment through a hermetically sealed enclosure and connector.
Measurement of pressure occurs in a balanced, fully active resistive bridge, with conditioning through a unique electronic circuit to provide a highly accurate low noise signal. Immunity from external electrical effects and inadvertent misconnection is provided through simplified design and special protective circuit elements.
A patent pending signal conditioning circuit provides a highly precise performance throughout the entire operating temperature range. The accuracy and thermal error are the same at the hottest and coldest extremes as at room temperature. Both amplified and millivolt output options are available.
Units are available with a wide range of welded connectors. Pressure interfaces using standard G1/4, NPT, coned and others, as well as fully custom, are available. Body size is typically 1 inch, and overall weight less than 4 oz.