SFM3119

Compact digital flow sensor, 240 slm

Specification

Gas flow
Full scale flow rate
-10 - 240
slm
Typical accuracy
±2% m.v.
Calibration
Air, O₂ and mixtures thereof
Sensor output
Flow and T
Maximum operating pressure
1.3
bar
Fluidic connector ports
O-ring
Generic
Supply voltage
4.75 - 5.25
V
Max. supply current
150000
uA
Interfaces
I²C
Package size (LxWxH)
57.5 x 27.5 x 29.4
mm³

Technical downloads

Name
Type
Date
File
Size
Datasheet SFM3119
Datasheet
07/2021
PDF
1.2 MB
STEP file SFM3119
CAD
10/2021
STEP
1.3 MB
Handling instructions SFM3xxx
Application note
01/2021
PDF
141.7 KB
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
STEP file SFM3000
CAD
10/2021
STEP
2.2 MB
Product flyer medical applications SFM3000
Flyer
10/2021
PDF
183.1 KB
Engineering guide SFM
User guide
01/2021
PDF
592.1 KB
REACH and RoHS declaration SFM/SGM
Certificate
07/2022
PDF
99.6 KB
Gas Flow Sensors brochure
Flyer
08/2021
PDF
1013.9 KB

Buy the following products to evaluate this sensor

The SFM3119 is a compact digital flow meter. It is the successor of the SFM3100 mass flow meter. Compared to its predecessor, the SFM3119 comes with a digital I²C output as well as improved specifications.

The SFM3119 mass flow meter is highly accurate and fast at flows of air, oxygen and mixtures thereof between -10 and 240 slm. It has a compact design and can be easily integrated into existing devices. The signal is internally linearized and temperature compensated. Furthermore, the SFM3119 flow meter has a low pressure drop.

Like all Sensirion flow sensors, the SFM3119 mass flow sensor is based on the patented CMOSens® Technology, which combines the sensor and analysis electronics on a single microchip. The result is a highly stable and precise system for demanding and cost-sensitive applications. The SFM3119 is particularly suitable for inspiratory flow sensing in applications like ventilation or anesthesia as well as for mixing oxygen and air to a very precise degree.

Product impressions

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