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  The SFM3400 flow sensor is a proximal flow sensor for neonatal and pediatric applications in respiratory devices such as ventilation or anesthesia. The sensor is available as both a single-use version (SFM3400-D) and a reusable version (SFM3400-AW) and features outstanding measurement accuracy and a short signal processing time as well as high robustness. It is fully calibrated for air, N₂ and O₂ gases and it measures bidirectional flow rates of up to 33 slm. Thanks to its performance characteristics, the SFM3400 mass flow meters are ideally suited for OEM applications in the area ventilation and anesthesia.
  
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Mass Flow Meter SFM4100

Versatile Flow Sensor

Designed for anaesthesia equipment, the CMOSens® mass flow meter SFM4100 precisely measures air and other non-aggressive gases. It provides an impressively wide dynamic measuring range up to 20 slm. The sensor unit has a digital I2C interface, provides a fully calibrated and temperature compensated output signal, and operates reliably at pressures of up to 7 bar.

Its outstanding long-term stability makes the SFM4100 first choice for products that require a high rate of deployment with long service intervals. For OEM projects, more than one gas calibration can be stored simultaneously in each sensor device. Self-test features allow testing of the entire signal chain (from capture of the analogue signal through digital signal chain) while the mass flow meter is in use. This makes the SFM4100 an optimal solution for safety-critical applications.

Sensirion Mass Flow Meters SFM4100

Features

Measurement of flow rates from 0 to 20 l/min
No drift
Wide dynamic range (1:500)
Digital I²C interface
Digitally calibrated and temperature compensated
Multigas Option

Applications

Anaesthesia, inhalers and other medical instruments
Analytical equipment
Process Automation

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Download Center

Here you can find all documents of Sensirion's mass flow meters for download.

Choose Your Type

Depending on your specific calibration requirements, you can choose from different types of sensors:

Gas:	Range:	Type:
Air; N2	0-20 slm	Standard
O2	0-20 slm	Standard
CO2	0-20 slm	Standard
N2O	0-20 slm	Standard
Ar	0-20 slm	Standard
other	selectable	OEM
multigas	selectable	OEM

Related Products

Sensirion Mass Flow Meters EK F4x

Evaluation Kit EK-F4x

The evaluation kit EK-F4x is designed for a straightforward and cost-efficient evaluation of the SFM4100 flow meter. Test the high accuracy, no offset or drift and the excellent long-term stability.

Sensirion Mass Flow Meters SFM3000

Mass Flow Meter SFM3000

The digital SFM3000 mass flow meter excels in accuracy, fast response time and low pressure drop, making it highly suitable for cost-sensitive flow measurements in medical and industrial applications.

Sensirion Mass Flow Meters SFM3100

Mass Flow Meter SFM3100

The analog SFM3100 mass flow meter as a compact design and can be easily integrated into existing systems. An integrated temperature sensor eliminates the need to install an additional sensor.

Sensirion Mass Flow Meters SFM3200

Mass Flow Meter SFM3200

The SFM3200 mass flow meter for inspiratory applications is characterized by its wide dynamic measurement range of up to 250 slm, as well as its measurement accuracy at low flows.

Sensirion Mass Flow Meters SFM3200-AW

Mass Flow Meter SFM3200-AW

The SFM3200-AW mass flow meter that can be sterilized in an autoclave is cleanable and reusable. Due to the very low pressure drop, it is particularly suitable for expiratory flow measurements.

Sensirion Mass Flow Meters SFM3300 3200 Kombi

Mass Flow Meter SFM3300-AW

Because of the small dead-space volume and the stability against different inlet conditions, the autoclavable SFM3300-AW mass flow meter is particularly suitable for proximal flow measurements.

Sensirion Mass Flow Meters SFM3300 D

Mass Flow Meter SFM3300-D

The single-use SFM3300-D mass flow meter for proximal flow measurements is fully calibrated and temperature compensated. It features high accuracy, superior robustness and a very fast update time.

Sensirion Mass Flow Meters SFM5400

Mass Flow Meter SFM5400

The SFM5400 mass flow meter is the valve-free version of the SFC5400 mass flow controller. It measures mass flows with outstanding accuracy and repeatability and has a wide dynamic measurement range.

Sensirion Mass Flow Meters SFM5300

Mass Flow Meter SFM5300

The SFM5300 mass flow meter is the compact and reduced version of the SFM5400 mass flow meter. It is exclusively for cost-sensitive OEM projects with high unit quantities.

Sensirion Customized Solutions

Customized (OEM) Mass Flow Meters

Besides the standard gas flow sensor solutions, we also offer customized OEM sensor solutions at an attractive price performance ratio. We adapt or develop your customized mass flow meters.