《Datasheet_mass-flow-meter_ASF1400_E》.pdf

ASF1400 Bidirectional Mass Flow Meter _ Unique dynamic range: 0.01 sccm – 400 sccm _ Outstanding resolution and accuracy _ Ultra fast response time _ Hysteresis offset free _ Calibrated temperature compensated _ RS-232 and Version 2.2 / November ASF1400 Product Summary The ASF1400 Mass Flow Meter enables extremely Mounted in rugged, chemically inert PBT housing the accurate bidirectional measurement of gas flow over four ASF1400 is suitable for a wide range of applications. Such orders of magnitude. Its leading performance is based on include mass flow metering for process control, medical SENSIRION’s unsurpassed CMOSens® sensor technology. applications, heating ventilation and air conditioning With CMOSens® , the on-chip sensor element forms an (HVAC) solutions, as well as gas flow metrology. integrated whole with the amplification and A/D converter The sensor housing provides two inlets for measuring the circuit. This results in superior resolution, fast response gas flow and withstands overpressures of 2 bar (29 psi). time and large dynamic range at lowest power The ASF1400 requires a supply voltage of 7…18Vdc and consumption. provides an RS-232 compliant electrical interface. All measurement data is fully calibrated and temperature compensated by means of an internal microcontroller. ASF1400 MASS FLOW METER VOLTAGE GND Power MASS FLOW REGULATOR VDD Supply