CO2 sensor module with heating function EE872

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EE872

last updated：Oct 25, 2024

テクネ計測

CO2 measurement is possible even in agricultural applications where there is a possibility of moisture dispersion.

● Prevention of condensation through sensor heating function ● CO2 measurement principle: two-wavelength non-dispersive infrared method (NDIR), with automatic calibration function ● Measures CO2, relative humidity (RH), temperature, and pressure (p) ● Analog output or BACnet MS/TP or Modbus RTU ● Maximum CO2 measurement range of 5% (50,000 ppm) ■ The EE872 is equipped with a heating function, demonstrating high reliability even in harsh and condensation-prone environments. Its IP65 housing and replaceable filter provide excellent protection in contaminated environments. If a H2O2 catalyst filter is selected, it can also be used for applications involving sterilization with H2O2. ■ The automatic calibration function allows for accurate CO2 measurements regardless of temperature, altitude, or weather conditions.

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Measurement Principle: Two-Wavelength Non-Dispersive Infrared Method (NDIR) <CO2> Measurement Range: 0-2000/0-5000/0-10000 ppm Accuracy: 0-2000 ppm <±(50 ppm + 2% of reading) 0-5000 ppm <±(50 ppm + 3% of reading) 0-10000 ppm <±(100 ppm + 5% of reading) 0-3% / 0-5%: < ± (1.5% full scale + 2% of reading) Output: 0 – 5 / 0 – 10 V -1 mA < IL < 1 mA 0 - 20 mA / 4 - 20 mA (3-wire) RL ≤ 500 Ohm RL = non-resistive RS485 (up to 32 devices can be connected per bus) Modbus RTU or BACnet MS/TP <Temperature> Operating Range: -40 to 60 °C Accuracy: ± 0.5 °C <Humidity> Operating Range: 0 to 100 %RH (with heating function) 0 to 95 %RH (no condensation) (without heating function)