SFM3020
Analog flow sensor for high-volume respiratory devices, 160 slm
The SFM3020 mass flow meter is the analog sibling of SFM3003 and particularly suitable for high-volume applications. The design of the flow channel results in a very low pressure drop, making it ideal for medical ventilation.
The flow of air and oxygen at rates from -10slm to 160slm is measured with excellent accuracy and extremely high speed. The signal is internally linearized and temperature compensated and provided as an analog output voltage for easy read out.
As part of the SFM3xxx platform, the SFM3020 is a versatile sensor solution for many different high-volume applications in which cost efficiency is the priority and analog the preferred interface. The outstanding performance of the SFM3020 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-10 - 160slm | -10 - 160 | slm | |
| Typical accuracy±2% m.v. | ±2% m.v. | ||
| CalibrationAir and O₂ | Air and O₂ | ||
| Sensor outputFlow | Flow | ||
| Maximum operating pressure1.3bar | 1.3 | bar | |
| Fluidic connector portsMedical cone (22 mm) | Medical cone (22 mm) |
| Generic | |||
|---|---|---|---|
| Supply voltage2.7 - 5.5V | 2.7 - 5.5 | V | |
| Average supply current3800uA | 3800 | uA | |
| Max. supply current5500uA | 5500 | uA | |
| InterfacesAnalog voltage | Analog voltage | ||
| Size (LxWxH)82 x 35 x 32mm | 82 x 35 x 32 | mm |
