CO2 Flow Sensor, 0-30sccm/0-500sccm to 0-1000sccm

This CO₂ flow sensor is specifically designed for precision gas flow monitoring, offering multiple selectable ranges of 0-30/50/100/200/300/500/1000 sccm with an output impedance of 200Ω and excellent signal consistency. The gas flow sensor operates at a typical voltage of 10V and current of 25mA, with a response time of just 50ms to rapidly capture flow changes. It supports long-term stable operation in environments ranging from 0 to 50°C.

Feature

• The carbon dioxide flow sensor utilizes thermodynamic principles to measure gas flow in ducts, delivering excellent accuracy and repeatability.
• Each unit incorporates a built-in temperature sensor with proprietary temperature compensation calibration and features a linear analog voltage output for convenient operation.
• SUCH gas flow sensors employ the latest generation of MEMS sensor chip technology, enabling precise measurement of minute flow rates with rapid response times.

Dimension (unit: mm)

Usage Instruction

1. The gas flow sensor offers selectable ranges from 30 sccm to 1000 sccm.
2. SCCM: Standard-State Cubic Centimeter per Minute.
3. Standard conditions for this sensor are: Gas temperature: 0°C, atmospheric pressure: 101.325 kPa
4. Test conditions: Ambient air temperature, clean air.
5. Temperature compensation is tested within 0°C to 50°C. Accuracy beyond this range cannot be guaranteed.

Flow Conversion

• Actual Flow = Full Scale × (Sensor Output Voltage - Sensor Zero Voltage) / (Sensor Full Scale Voltage - Sensor Zero Voltage)
• Example: Sensor range is 1000 SCCM, sensor zero output voltage is 1V, sensor full-scale output voltage is 5V,
  measured sensor actual output voltage is 2.5V.
• Actual Flow Rate = 1000 sccm × (2.5V - 1V) / (5V - 1V) = 375 sccm

Pin Definition

 

Pin	Function
1	NC (Not Connected)
2	OUT
3	VCC
4	GND
5	NC (Not Connected)
6	NC (Not Connected)