The ASF1430 Bidirectional Mass Flow Meter is an instrument that enables extremely accurate bidirectional measurement of fast changing gas flow. 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 the lowest power consumption. All measurement data is fully calibrated and temperature compensated by means of an internal microcontroller. The ASF1430 is suitable for a wide range of applications, including 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.
The ASF1430 is a bidirectional mass flow meter that measures fast‑changing gas flow over four orders of magnitude. It uses Sensirion's CMOSens® sensor technology, integrating the sensor element, amplifier, and A/D converter on a single CMOS chip for high resolution, low power consumption, and temperature‑compensated output. The device offers a dynamic range from 0.01 sccm to 400 sccm and can be extended with a bypass configuration.
The meter is powered from 7 V to 18 V DC and communicates via a bi‑directional RS‑232 interface (19200 baud, 8‑N‑1). Configuration and measurement commands are sent over RS‑232, and the sensor provides flow and temperature data as signed 16‑bit integers. The document includes performance tables, pinout, command set, and safety notices.