Datasheet Mass Flow Meter ASF1430 for Air & Gases - Sensirion - #1

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ASF1430 Bidirectional Mass Flow Meter - Total mass flow integrator Data rates up to 200 Hz SGNSIRION th€ sënsor company Unique dynamic range: 0.01 sccm - 400 sccm Outstanding resolution and accuracy Calibrated & temperature compensated RS-232 RoHS compliant v 2.3 / November 2008 ASF1430 Product Summary The ASF1430 Mass Flow Meter enables extremely accurate bidirectional measurement of fast changing gas flow over four orders of magnitude. Its leading performance is based on SENSIRION's unsurpassed CMOSens® sensor technology which combines a high precision sensor element with the amplification and A/D converter circuit on one single CMOS chip. This results in superior resolution, fast response time and large dynamic range at lowest power consumption. All measurement data is fully calibrated and temperature compensated by means of an internal microcontroller. Mounted in rugged, chemically inert PBT housing the ASF1430 is suitable for a wide range of applications. Such include mass flow metering for process control, medical applications, heating ventilation and air conditioning (HVAC) solutions, as well as gas flow metrology. The sensor housing provides two inlets for measuring the gas flow and withstands overpressures of 2 bar (29 psi). The ASF1430 requires a supply voltage of 7...18Vdc and provides an RS-232. ASF1430 is RoHS compliant. .2 ra o o. '■H E o o ■4= w n <d E £ o <i> o w CMOSens8 E o q) .4- Q. o 2>E nolongersupported n i o in 2 ~ à. S S _. n _^ E _ <5 d) -W 'ZI -W o -W Ut n i o o CN on  s x c  o ■-;  n i o o  y n q)  H x j=  o Q. O cô Q. o o -1 <-> 1-1 <-> 1- î " î Resolution settings determine the integration period between 5ms and 640 ms Integrated Resolution temperature settings sensor Figure 1 : Block Diagram ASF1430 Mass Flow Sensor. www.sensirion.com Sensirion - the sensor company