SFM4100-20-CO2
NRNDPressure-resistant flow sensor for CO₂, 20slm, push-in fittings
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.
Successor product
| Name | Description | Series | Category |
|---|---|---|---|
 SFM4300-20-P | Pressure-resistant multi-gas flow sensor, 20slm, push-in fittings | SFM4xxx | Gas flow sensors |
Specification
| Gas flow | |||
|---|---|---|---|
| Full scale flow rate
0 - 20
| 0 - 20 | slm | |
| Typical accuracy
±3% m.v.
| ±3% m.v. | ||
| Calibration
CO₂
| CO₂ | ||
| Sensor output
Flow and T
| Flow and T | ||
| Maximum operating pressure
6
| 6 | bar | |
| Fluidic connector ports
Legris carstick (6 mm)
| Legris carstick (6 mm) |
| Generic | |||
|---|---|---|---|
| Supply voltage
3.5 - 15
| 3.5 - 15 | V | |
| Max. supply current
12500
| 12500 | uA | |
| Interfaces
I²C
| I²C | ||
| Size (LxWxH)
93 x 31.88 x 27.2
| 93 x 31.88 x 27.2 | mm³ |
Downloads
Sensor evaluation
Buy the following products to evaluate this sensor
| Name | Description | Series | Category |
|---|---|---|---|
 SEK-SensorBridge | Connecting bridge with two sensor ports | SEK-SensorBridge | |
 SEK-SFM4100 | Gas flow sensors evaluation kit SFM4100 | SEK-SFMxxxx | Gas flow sensors |
Download the respective viewer software to start measuring
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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.