SFM3000-200

Versatile low pressure drop digital flow sensor, 200 slm

Specification

Gas flow
Full scale flow rate
±200
slm
Typical accuracy
±2.5% m.v.
Calibration
Air and O₂
Sensor output
Flow and T
Maximum operating pressure
1.3
bar
Fluidic connector ports
Medical cone (22 mm)
Generic
Supply voltage
4.75 - 5.5
V
Average supply current
3800
uA
Max. supply current
5500
uA
Package size (LxWxH)
82 x 35 x 32
mm³

Technical downloads

Name
Type
Date
File
Size
Datasheet SFM3000
Datasheet
07/2016
PDF
541.3 KB
CRC checksum
Application note
01/2020
PDF
174.3 KB
SFM3xxx I²C Functional Description
Application note
05/2022
PDF
306.1 KB
Sample code SFM3000
Software
10/2021
ZIP
261.6 KB
STEP file SFM3000
CAD
10/2021
STEP
2.2 MB
Product flyer medical applications SFM3000
Flyer
10/2021
PDF
183.1 KB
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
Engineering guide SFM
User guide
01/2021
PDF
592.1 KB
REACH and RoHS declaration SFM/SGM
Certificate
07/2022
PDF
99.6 KB
Product flyer SFM
Flyer
08/2021
PDF
1013.9 KB

Buy the following products to evaluate this sensor

SFM3000 is a digital flow meter especially suitable for high-volume applications. The design of the flow channel results in very low pressure drop through the sensor element, making it highly suitable for medical ventilation and respiration applications.

The SFM3000 bidirectionally measures the flow of air and other non-aggressive gases at rates up to 200slm with excellent accuracy and extremely high speed. It outputs a 14-bit digital signal at a 2kHz update rate. The signal is internally linearized and temperature compensated. Furthermore, the SFM3000 flow meter operates from a 5 Vdc supply voltage and features a digital 2-wire interface, making it easy to connect directly to a microcontroller.

The outstanding performance of the SFM3000 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.

Product impressions

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