ASF1400 bidirectional Mass Flow Meters

 The ASF1400 Mass Flow Meter enables extremely accurate bidirectional measurement of gas flow over four orders of magnitude. Its leading performance is based on SENSIRION's unsurpassed CMOsens^® sensor technology. With CMOsens^® , the on-chip sensor element forms an integrated whole with the amplification and A/D converter circuit. 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 ASF1400 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 ASF1400 requires a supply voltage of 7…18Vdc and provides an RS-232 and SPI compliant electrical interface.

FEATURES

Lowest detectable mass flow rate of 0.003 sccm (0.015 sccm standart, 0.003 sccm avaible on request). Unique dynamic range from 0.015 to 400 sccm (other ranges available as OEM Products). Outstanding resolution and accuracy. Hysteresis and offset free. Ultra fast response time (down to 5 ms). Fully calibrated and temperature compensated. Integrated temperature sensor. Linearized digital output signal.  Standart digital interface (RS-232 and SPI). Wide supply voltage range. Low power consumption. CE-certefied /FCC (CFR 47). Well suited for hostile environment.

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