SFM3003-300-CL
Versatile low pressure drop digital flow sensor, 300 slm, with cap
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 | |||
|---|---|---|---|
| Full scale flow rate
-30 - 300
| -30 - 300 | slm | |
| Typical accuracy
±2% m.v.
| ±2% m.v. | ||
| Calibration
Air, O₂ and mixtures thereof
| Air, O₂ and mixtures thereof | ||
| 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 | mm³ |
Downloads
Sensor evaluation
Buy the following products to evaluate this sensor
| Name | Description | Series | Category |
|---|---|---|---|
 SEK-SensorBridge | Connecting bridge with two sensor ports | SEK-SensorBridge | |
 SEK-SFM3003 | Gas flow sensors evaluation kit SFM3003 | SEK-SFMxxxx | Gas flow sensors |
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