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SFM3000 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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SFM3000 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 7 page  www.sensirion.com Version 2 – February 2014 1/7 Datasheet SFM3000 Low Pressure Drop Digital Flow Meter Low pressure drop Flow range: +/- 200 slm (bidirectional) Accuracy 1.5% m.v. (typical) Very fast update time (0.5ms) Fully calibrated & temperature compensated Zero offset, no drift Product Summary The SFM3000 sensor is Sensirion’s digital flow meter designed for high-volume applications. It measures the flow rate of air, oxygen and other non-aggressive gases with superb accuracy. A special design of the flow channel results in the very low pressure drop through the flow body of the sensor making it extremely suitable for very demanding applications, such as medical ventilation and respiratory applications. The SFM3000 operates from a 5 Volt supply voltage and features a digital 2-wire I2C interface. The measurement results are internally linearized and temperature compensated. The outstanding performance of this sensor is based on Sensirion’s patented CMOSens® sensor technology, which combines the sensor element, signal processing and digital calibration on a single microchip. The flow rate of the gas is measured by a thermal sensor element which assures very fast signal processing time and bi- directional measurement with best-in-class accuracy. The well-proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications. Applications Medical Process automation Burner control Fuel cell control Spectroscopy Environment monitoring Laboratory OEM options A variety of custom options can be implemented for high- volume OEM applications (custom flow rates, calibration for other gases, different body form factor etc.). Contact us for more information. Sensor chip The SFM3000 flow meter features a fifth-generation silicon sensor chip SF05. In addition to a thermal mass flow sensor element, the chip contains an amplifier, A/D converter, EEPROM memory, digital signal processing circuitry, and interface. Due to seamless integration of signal acquisition and processing on the single silicon die significant performance and cost benefits are achieved. Connection diagram Micro controller (master) SFM3000 (slave) VDD GND SDA SCL 5V SFM3000 with bidirectional digital communication (I2C bus) |
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