SFM4300-20-B

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Pressure-resistant multi-gas sensor, basemount, 20 slm

Specification

Gas flow
Full scale flow rate
0 - 20
slm
Typical accuracy
±2% m.v.
Calibration
Air, O₂, N₂O and mixtures thereof
Sensor output
Flow and T
Maximum operating pressure
6
bar
Fluidic connector ports
Downmount
Generic
Supply voltage
4.75 - 5.6
V
Max. supply current
10000
μA
Interfaces
I²C
Package size (LxWxH)
131.3 x 43.8 x 39.9
mm³

Technical downloads

Name
Type
Date
File
Size
STEP file SFM4300
CAD
10/2021
ZIP
6.8 MB
Reference and flow conversions
Application note
09/2021
PDF
293.7 KB
Reference and flow conversions calculator
Application note
10/2021
XLSX
30.3 KB
Engineering guide SFM
User guide
01/2021
PDF
592.1 KB
REACH and RoHS declaration SFM/SGM
Certificate
09/2021
PDF
99.4 KB
Product flyer SFM
Flyer
08/2021
PDF
1013.9 KB

Buy the following products to evaluate this sensor

The mass flow meter SFM4300 features improved sensitivity and precision, even for low flow rates.

The small, compact sensor is calibrated for air, O2 and N2O gases and – in contrast to its predecessor, the mass flow meter SFM4100 – it can also be used to monitor gas mixing. With a zero-point accuracy of 0.005 slm for a total range of up to 20 slm, the SFM4300 enables precise adjustment of the concentration in a wide selection of mixtures. The sensor unit has an I²C interface and produces a fully calibrated and temperature-compensated output signal. The mass flow sensor can be used for both medical and industrial gas mixing, fuel cells and for other OEM applications.

In addition to inspiratory, expiratory and proximal flow measurement, Sensirion offers sensor solutions for gas mixing applications. These sensors are mainly used in anesthesia machines and are usually integrated into the overall machine. If we want to guarantee the patient’s safety while taking accurate, reproducible readings, we need the flow sensors in the machine to be stable and reliable – throughout the machine’s service life. Therefore, the Sensirion SFM4000 series is the ideal solution. It is is devided in two sensors: SFM4300 and SFM4200. The SFM4300 sensor can operate at pressures of up to 6 bar, store multiple gas calibrations and even perform self-testing while in use. Where safety and reliability are concerned, the SFM4300 is the preferred choice. The SFM4200 sensor is highly resistant to pressure, it guarantees reliable measurements at surges of up to 8 bar. Its signal processing time is 0.5 ms, making it incredibly fast and accurate. Customers also benefit from an expanded measurement range of up to 160 liters per Minute.

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Sensirion’s sensor solutions are used in a wide range of applications and markets. Our reliable environmental and flow sensors improve energy efficiency, increase health and ensure safety and comfort.