UK Clairair high-resolution infrared carbon dioxide sensor (NDIR CO2 sensor) - Prime2

1. High resolutionInfrared CO2 sensor(CO2 sensor) Prime2 product description and operation:

Prime2 sensorUses NDIR technology to detect CO2 gas concentration. Inside the sensor, there is an infrared light source, a dual-element infrared detector, a unique optical waveguide that allows gas to diffuse in, and an ARM7 core microprocessor. The output voltage is independent of the power supply polarity.

High-resolution infrared CO2 sensor Prime2Can be set to linear voltage output, with a full-scale range of 0.4V-2.0V referenced to the negative power supply terminal, or set to catalytic combustion format output, where the zero point is typically the midpoint voltage, and the voltage at the detection pin at the full-scale point is 100mV.

In addition, the output value can be read and internal configuration can be accessed through a serial port connection. For Prime2 in the 3-series, the communication connection points are pads; for the 5-series, they are pins. The internal integrated circuit can perform functions such as driving the optical components, extracting detection signals, converting signal intensity into concentration, performing temperature compensation, and quantifying output values.

In catalytic combustion configuration, Prime2 can fully replace catalytic combustion sensors without changing the circuit, provided that the power supply requirements are met. When Prime2 is used in a constant-current catalytic combustion circuit,
the peripheral components need to meet the power supply requirements. Prime2 currently does not have explosion-proof certification, so if used in hazardous areas, an explosion-proof sealed enclosure must be added.
Customers can obtain technical support for product applications and application notes from Clairair.

2. Features of the high-resolution infrared CO2 sensor (CO2 sensor) Prime2:
Operation is not affected by power supply polarity
Linear voltage output or analog catalytic combustion bridge output
Operating voltage range 3.0V-5.0V
Typical operating current is 80mA
New MEMS detector technology
Measurement range: from 0-5000ppm CO2 to 0-10%Vol CO2
All-metal structure with insulated housing
Small size
Flexible circuit access settings
Users can calibrate through hardware connections
Wide operating temperature range
Fast response

3. Appearance description of the high-resolution infrared CO2 sensor (CO2 sensor) Prime2
All dimensions are in mm (±0.1mm unless otherwise noted). Rx and Tx are pads for the 3-series.