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                                                                                                  1. Home
                                                                                                  2. Sensors & Transducers
                                                                                                  3. Sensors
                                                                                                  4. Flow Sensors
                                                                                                  5. Gas Flow Sensors
                                                                                                  Print Page

                                                                                                  SFM3400-33-D

                                                                                                  Flow Sensor, Neonatal/Paediatric, 33 l/min, 1.1 bar, 4.75 to 5.25 VDC, CMOSens SFM3xxx Series

                                                                                                  SENSIRION
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  SENSIRION SFM3400-33-D
                                                                                                  ManufacturerSENSIRION
                                                                                                  Manufacturer Part NoSFM3400-33-D
                                                                                                  Order Code3804213
                                                                                                  Product RangeCMOSens SFM3400 Series
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  Available to Order
                                                                                                  Deliveries start from 17/1/2026.

                                                                                                  Notify me when back in stock

                                                                                                  QuantityPrice
                                                                                                  1+HK$340.660
                                                                                                  5+HK$313.330
                                                                                                  10+HK$303.150
                                                                                                  Price for:Each
                                                                                                  Minimum: 1
                                                                                                  Multiple: 1
                                                                                                  HK$340.66
                                                                                                  Line Note
                                                                                                  Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
                                                                                                  This number will be added to the Order Confirmation, Invoice, Dispatch note, Web confirmation Email and Product Label.

                                                                                                  Product Information

                                                                                                  SENSIRION
                                                                                                  ManufacturerSENSIRION
                                                                                                  Manufacturer Part NoSFM3400-33-D
                                                                                                  Order Code3804213
                                                                                                  Product RangeCMOSens SFM3400 Series
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Sensor TypeFlow Sensor
                                                                                                  Flow Rate Min-33l/min
                                                                                                  Flow Rate Max33l/min
                                                                                                  Operating Pressure Min0.54bar
                                                                                                  Operating Pressure Max1.1bar
                                                                                                  Supply Voltage Min4.75V
                                                                                                  Supply Voltage Max5.25V
                                                                                                  Accuracy3%
                                                                                                  Accuracy± 10%
                                                                                                  Sensor Output TypeI2C Digital
                                                                                                  Media TypeAir, Nitrogen, Oxygen
                                                                                                  Process Connection Size-
                                                                                                  Process Connection Type-
                                                                                                  Pipe Size-
                                                                                                  Sensor MountingIn-Line
                                                                                                  Operating Temperature Min5°C
                                                                                                  Operating Temperature Max50°C
                                                                                                  Product RangeCMOSens SFM3400 Series
                                                                                                  SVHCNo SVHC (12-Jan-2017)
                                                                                                  Port Size15mm
                                                                                                  Pressure Max1.1bar
                                                                                                  Supply Voltage DC Max5.25V
                                                                                                  Supply Voltage DC Min4.75V

                                                                                                  Product Overview

                                                                                                  SFM3400-33-D is a SFM3400 sensor series digital flow meter. It measures the flow rate of air, oxygen and other nonaggressive gases with superb accuracy. The special design of the flow channel results in a very small dead space. The SFM3400 series is extremely well suited for proximal flow measurements in neonatal/paediatric medical ventilation and other respiratory applications. It features medical cones for pneumatic connection to standard breathing circuits and a mechanical interface for easy and reliable electrical reconnection. The sensor element, signal processing and digital calibration are on a single microchip assuring very fast signal processing time, best-in-class accuracy and superior robustness to rough handling and adverse conditions.

                                                                                                  • Single use meter
                                                                                                  • Flow range: ±33slm (bidirectional)
                                                                                                  • Small dead space < 1ml
                                                                                                  • Very fast update time (0.5ms)
                                                                                                  • I2C interface
                                                                                                  • Power consumption < 50mW

                                                                                                  Technical Specifications

                                                                                                  Sensor Type

                                                                                                  Flow Sensor

                                                                                                  Flow Rate Max

                                                                                                  33l/min

                                                                                                  Operating Pressure Max

                                                                                                  1.1bar

                                                                                                  Supply Voltage Max

                                                                                                  5.25V

                                                                                                  Accuracy

                                                                                                  ± 10%

                                                                                                  Media Type

                                                                                                  Air, Nitrogen, Oxygen

                                                                                                  Process Connection Type

                                                                                                  -

                                                                                                  Sensor Mounting

                                                                                                  In-Line

                                                                                                  Operating Temperature Max

                                                                                                  50°C

                                                                                                  SVHC

                                                                                                  No SVHC (12-Jan-2017)

                                                                                                  Pressure Max

                                                                                                  1.1bar

                                                                                                  Supply Voltage DC Min

                                                                                                  4.75V

                                                                                                  Flow Rate Min

                                                                                                  -33l/min

                                                                                                  Operating Pressure Min

                                                                                                  0.54bar

                                                                                                  Supply Voltage Min

                                                                                                  4.75V

                                                                                                  Accuracy

                                                                                                  3%

                                                                                                  Sensor Output Type

                                                                                                  I2C Digital

                                                                                                  Process Connection Size

                                                                                                  -

                                                                                                  Pipe Size

                                                                                                  -

                                                                                                  Operating Temperature Min

                                                                                                  5°C

                                                                                                  Product Range

                                                                                                  CMOSens SFM3400 Series

                                                                                                  Port Size

                                                                                                  15mm

                                                                                                  Supply Voltage DC Max

                                                                                                  5.25V

                                                                                                  Technical Docs (3)

                                                                                                  Application Note EN

                                                                                                  Product Change Notice EN

                                                                                                  Technical Data Sheet EN

                                                                                                  Legislation and Environmental

                                                                                                  Country of Origin:
                                                                                                  Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                  Switzerland
                                                                                                  Country in which last significant manufacturing process was carried out
                                                                                                  Tariff No:90261029
                                                                                                  US ECCN:EAR99
                                                                                                  EU ECCN:NLR
                                                                                                  RoHS Compliant:Y-Ex

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:No SVHC (12-Jan-2017)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

                                                                                                  Weight (kg):.010433
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