Description
The SFM3300 series is Sensirion’s digital flow meter series designed for medical applications. It measures the flow rate of air, oxygen and other non-aggressive gases with superb accuracy. The special design of the flow channel results in a very small dead space.
The SFM3300 series has been designed with the use by medical professionals in mind. It features medical cones for pneumatic connection to standard breathing circuits and a mechanical interface for easy and reliable electrical reconnection. The sensor element, signal processing and digital calibration are on a single microchip assuring very fast signal processing time, best-in-class accuracy and superior robustness to rough handling and adverse conditions. The well-proven and patented CMOSens sensor technology is perfectly suited for high-quality mass production and is the ideal choice for demanding and costsensitive OEM applications.
Sensor chip
The SFM3300 series flow meter features a fifth-generation silicon sensor chip. 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.
- Flow range: +-250 slm, bidirectional
- Small dead space < 10ml
- Very fast update time (0.5ms)
- Fully calibrated
- Best-in-class accuracy
- Robust
- Low dependency on different inlet conditions
- Medical cones for pneumatic connection to standard breathing circuits
- Mechanical interface for electrical reconnection
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Proximal flow measurement
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Expiratory measurement
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Ventilation
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Anesthesia
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Respiratory measurements
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Metabolic measurements
- Datasheet SFM3300 (AW and D)
- Product Flyer Proximal Flow Sensors
- RoHS, REACH and Hal-Free Declaration GFM
FAQs:
Q: What is the flow range of the SFM3300-D mass flow meter?
A: The SFM3300-D can measure bidirectional flow volumes of up to 250 standard liters per minute (slm).
Q: What gases can the SFM3300-D measure?
A: The SFM3300-D is fully calibrated for air, O2 (oxygen), and N2 (nitrogen) gases, and can also measure other non-aggressive gases.
Q: Is the SFM3300-D suitable for medical applications?
A: Yes, the SFM3300-D is designed for single-use in medical applications such as ventilation and anesthesia.
Q: How does the SFM3300-D ensure accuracy and robustness?
A: The sensor element, signal processing, and digital calibration are integrated on a single microchip, ensuring fast signal processing, high accuracy, and robustness to rough handling and adverse conditions.
Q: What is the advantage of the SFM3300-D's low dead space volume?
A: The low dead space volume is beneficial in medical applications where it is crucial to minimize the amount of gas that remains in the sensor and does not reach the patient.
