A range of ceramic and stainless steel pressure sensors for viscous and gaseous media is now available, which not only withstand frequent wash downs and temperatures of up to 300°C, but are also certified for use in explosive atmosphere (ATEX, Zone 0) environments.
The DMK 331P is a ceramic pressure sensor with a flush stainless steel diaphragm, ideal for viscous and gaseous media. Supplied by Impress Sensors & Systems (UK) the sensor is targeted at any process environment where viscous fluids are present, including food & dairy manufacturing, paper & pulp, water & waste treatment, chemicals and
pharmaceuticals.
Due to its ceramic housing, the DMK 331P shows excellent thermal
characteristics and therefore withstands frequent wash downs with chemicals and water. Special versions of the sensor are also available with a cooling element that enables the sensor to be used in temperatures up to 300°C.
Nominal pressure ranges are from 0…1 bar up to 0… 400 bar. Accuracy is ± 0.5% FSO (IEC 60770). A variety of electrical and mechanical connections are available.
The DMP 331P is a piezoresistive stainless steel pressure sensor that has a flush pressure port made with inch, clamp and dairy pipe connections. The sensor also benefits from small thermal effects and excellent linearity. For higher process temperatures, an optional integrated cooling element can be added that enables temperatures up to 300°C. The sensor is suitable for use in ATEX Zone 0 environments. Nominal pressure ranges are from 0…100mbar up to 0…40 bar. Accuracy is
0.35%/0.25% FSO (IEC 60770).
Both sensors come with silicon oil as standard, but other filling oils are available, including food-compatible oils and Halocarbon. Other types of pressure port and chemical seals are also available.
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