Impress Showcases Pressure, Flow And Level Sensors

Impress Sensors and Systems is to showcase a range of silicon pressure sensor modules for OEMs and more at Mtec 2010 on 27-28 April. The company will also highlight a differential pressure transmitter for level and flow measurement, as well as a range of process indicators and panel meters, including a compact multi-channel controller with touch-screen display. The DSP range of silicon pressure sensor modules has been specifically developed for OEMs to integrate into their own equipment or manifolds.

The sensors are also designed to help solve the historical problems often associated with oil-filled pressure sensors. Targeted at OEMs, the DSP range of piezoresistive silicon pressure sensor modules are suitable for general industrial use, environmental engineering, level measurement, process monitoring, and laboratory/calibration equipment. The 18m diameter stainless steel pressure sensor modules are available in two main versions: a direct contact type, where the media (air, non-aggressive gases and liquids) comes into direct contact with the silicon chip; and media separation via an oil-filled diaphragm.

The DSP series offers a range of operating pressures, from 20 mbar to 1,000 bar. The sensors are also said to provide good thermal and long-term stability, high overload protection and a high output signal. OEMs can choose between a thermally compensated, non-compensated or fully signal-conditioned version of the sensor with ratiometric output. Visitors to the Impress's stand will also be able to view a range of smart differential pressure transmitters.

The XMD range is said to be ideal for level measurement of closed, pressurised tanks, pump and filter control, or for closed pipe flow measurement when used in combination with an orifice plate, Venturi or nozzle. The XMD pressure transmitters can switch the output from a standard linear one to a square root extraction where flow rate can be output, making the sensor suitable for a range of sectors, including chemicals, food and dairy, paper and pulp, petrochemicals, energy, power and pharmaceuticals.

Pressure range is from 75 mbar up to 2 bar. The company will also show its complete range of process indicators, panel meters and controllers, including the CMC-99, a compact, multi-channel controller with touch-screen display, which is also said to be ideal for the simultaneous measurement and control of a variety of process applications. The CMC-99 controller offers a variety of input and output combinations to suit every measurement task.

Three card slots on the reverse of the unit each comprise 16 I/O pin options, which enable the user to select, for example, up to 48 analogue current or voltage inputs; up to 16 relay/SSR outputs; 24 thermocouple inputs; 12 RTD inputs; or a combination of these, depending on the application. Triggers and relays can also be set up via the controller's 24V DC digital input. Visitors will also be able to see the SRP 147, a wall-mountable process indicator/display meter with extra-large digital display.

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