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New DMD 831 stainless steel differential pressure transmitters

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New DMD 831 stainless steel differential pressure transmittersImpress Sensors & Systems is launching the DMD 831 stainless steel differential pressure transmitter. This range of high-pressure (up to 70bar), mechanically robust differential pressure transmitters for liquids and gases provide three-in-one capability, including an adjustable four-digit LED display, a pressure transmitter and two PNP pressure switch connections.

The DMD 831 incorporates two piezoresistive stainless steel sensors and stainless steel diaphragms. The transmitter is therefore suitable for a wide range of plant and process engineering applications, including HVAC, energy and laboratory applications.

Differential pressure sensors and transmitters measure the difference in pressure from one side of a diaphragm to the other or between two diaphragms. When pressure is applied, the DMD 831 determines the pressure difference between positive and negative sides and transforms this into a proportional electrical signal. Typically, this enables the measurement of pressure drop across a filter due to build-up or blockages, or for measuring flow and level via a pressurised vessel.

The DMD 831 is said to be cost-effective and compact for OEMs and end users across a diverse range of process control applications, including pressure control for lubrication systems, hydraulics and pneumatics, air compressors, steam, water, fuels and oils.

Sam Drury, the Sales & Marketing Director at Impress Sensors & Systems, comments: "The robust, compact design of the DMD 831 allows it to be integrated in a diverse range of process engineering and machinery applications, particularly where the installation space is restricted. The sensors also provide a turn-down capability of 10 to 1."

Seven different versions of the DMD 831 are available, with differential pressures from 0-80mbar up to 0-70bar. The transmitters operate in media temperatures from -40 to +125degC. Switching accuracy is +/-0.5 per cent FS according to IEC 60770. The transmitters are protected to IP65.

For more information about the DMD 831 stainless steel differential pressure transmitters go to www.impress-sensors.co.uk.

13 December 2011

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