SFM3003-300-CET
Versatile digital flow and temperature sensor, -150 to +300 slm
The SFM3003 mass flow meter is Sensirion’s next-generation flow meter. Technically it is based on the SFM3019 meter that was brought onto the market during the Covid-19 pandemic to provide high volumes of flow meters for inspiratory flow measurements in medical ventilators. Compared to the SFM3019, the SFM3003 comes with a wider flow range as well as improved specifications. The flow of air, oxygen and mixtures thereof at rates between -30 and 300 slm is measured with excellent accuracy, reliability and long-term stability, and no recalibration is needed. The SFM3003 outputs an easily integrable digital I2C interface. The signal is internally linearized and temperature compensated. Furthermore, the SFM3003 flow meter has a very low pressure drop, ultra-fast response time and optimal signal-to-noise ratio. As part of the SFM3xxx platform, the SFM3003 is a versatile sensor solution for many different high-volume applications in which cost efficiency is the priority. The outstanding performance of the SFM3003 sensor is based on Sensirion’s patented CMOSens® Technology, which combines the sensor element, signal processing and digital calibration on a tiny microchip. The gas is measured by a thermal sensor element to provide an extended dynamic range and enhanced long-term stability compared to other flow-measuring technologies. Thanks to this proven CMOSens® Technology, the flow meter is perfectly suited for high-quality mass production and is the ideal choice for demanding and cost-sensitive OEM applications.
Specification
Gas flow | |||
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Full scale flow rate -150 - 300 | -150 - 300 | slm | |
Typical accuracy ±2.5% m.v. | ±2.5% m.v. | ||
Calibration Air and O₂ and mixtures of air/O₂ | Air and O₂ and mixtures of air/O₂ | ||
Sensor output Flow and T | Flow and T | ||
Maximum operating pressure 1.3 | 1.3 | bar | |
Fluidic connector ports Medical cone (22 mm) | Medical cone (22 mm) |
Generic | |||
---|---|---|---|
Supply voltage 2.7 - 5.5 | 2.7 - 5.5 | V | |
Average supply current 3800 | 3800 | uA | |
Max. supply current 5500 | 5500 | uA | |
Interfaces I²C | I²C | ||
Size (LxWxH) 82 x 35 x 32 | 82 x 35 x 32 | mm |
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