Summary of NEXT-GENERATION DIGITAL FLOW SENSORS FOR HIGH VOLUME APPLICATIONS
Sensirion introduced three SFM3xxx flow sensors—SFM3003, SFM3013, and SFM3119—designed for inspiratory applications at ambient pressure. All offer high accuracy, very low pressure drop, fast sampling, full calibration and temperature compensation, and bidirectional flow measurement. SFM3003 extends range to -150 to 300 slm; SFM3013 is an overpressure-resistant, heliox-calibrated variant aimed at high-volume, cost-efficient use; SFM3119 is a compact I2C digital successor to SFM3100 with a -10 to 240 slm range for ventilation, anesthesia, and precise oxygen/air mixing.
Parts used in the SFM3xxx platform:
- SFM3003 flow sensor
- SFM3013 flow sensor
- SFM3119 flow sensor
Sensirion has introduced three next-generation sensors – SFM3003, SFM3013, and SFM3119 as part of SFM3xxx platform. Available worldwide via Sensirion distributors, these new flow sensors are suitable for inspiratory applications at ambient pressure. All three flow sensors offer high accuracy, very low-pressure drop, and fast signal sampling. Moreover, these devices are fully calibrated and temperature-compensated and can accurately measure flow rates in both directions.
The SFM3003 flow sensor has an extended flow range between -150 and 300 slm. It is based on the technology used in the SFM3019 sensor and provides high volume of flow sensors for inspiratory flow measurements in medical ventilators. It comes with a wider flow range and improved specifications. The flow of air, oxygen and mixtures thereof at rates between -30 and 300 slm can be measured with high accuracy, reliability and long-term stability and no recalibration is required. It has a very low pressure drop, ultra-fast response time and optimal signal-to-noise ratio. The SFM3013 flow sensor is a variant of the SFM3003. It is resistant to overpressure (up to 1 bar) and calibrated for heliox gas. This sensor is ideal for high volume and cost-efficient applications.
The SFM3119 flow sensor is a successor of SFM3100 flow sensor and a compact digital flow meter that comes with a digital I2C output and improved specifications. It is accurate and fast at measuring flows of air, oxygen and mixtures thereof between -10 and 240 slm. Its compact design enables it to be easily integrated into existing devices. The SFM3119 flow meter has a low pressure drop and is suitable for inspiratory flow sensing in applications such as ventilation and anesthesia, and for mixing oxygen and air to a very precise degree.
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- What applications are the SFM3xxx sensors suitable for?
They are suitable for inspiratory applications at ambient pressure such as ventilation, anesthesia, and precise oxygen/air mixing. - What flow range does the SFM3003 cover?
The SFM3003 covers an extended flow range between -150 and 300 slm and can measure -30 to 300 slm for air, oxygen and mixtures. - How is the SFM3013 different from the SFM3003?
The SFM3013 is a variant resistant to overpressure up to 1 bar and is calibrated for heliox, targeting high-volume, cost-efficient applications. - What interface does the SFM3119 provide?
The SFM3119 provides a digital I2C output. - What flow range does the SFM3119 measure?
The SFM3119 measures flows between -10 and 240 slm for air, oxygen and mixtures. - Do these sensors require recalibration?
No recalibration is required; they are fully calibrated and temperature-compensated. - Can these sensors measure flow in both directions?
Yes, they can accurately measure flow rates in both directions. - What performance characteristics do all three sensors share?
All three offer high accuracy, very low pressure drop, fast signal sampling, and long-term stability.
