Cost optimized mass flow meters

Published:2011/8/22 22:57:00 Author:Phyllis From:SeekIC

Sensirion presented a new generation of mass flow sensors with patented CMOSens£ technology. The’ main advantage of the CMOSensl EcoLine was its very wide flow range (0-200 In/min with only one instrument) at an attractive price, especially for OEM applications. Thanks to the fusion of a thermal sensor element with the readout circuitry on a single semiconductor chip (patented CMOSens® technology), the EcoLine achieved an unusually high dynamic range of up to 1:1 ’000. This indicated that a single CMOSensS EcoLine meter covers the range of several traditional mass flow meters, which reduced the system cost significantly.





The EcoLine presented an accuracy of down to 3% of the measured value over the entire range of 2.5 to 100% of the flow range. The digital outputed can deliver the measurement data with a speed of 5 ms. The rugged chemically inert housing was made of polycarbonate and is resistant to pressure of up to 8 bar (116 psi). This opened up a wide range of application varieties, for instance in process industry, medical applications or in the pharmaceutical industry as well as in chemical engineering. The CMOSenst EcoLine was particularly suitable for OEM applications requiring precision and speed at minimal cost. Modern technology permits a simple operation following the plug and play principle. The digital readout delivered the data via an RS-232/SPI interface. The supply voltage could vary between 7 and 1 8 VDC.

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