Transmitter capable of measuring relative humidity (RH) and temperature (T) with a duct-insertable CO2 meter, featuring a 5-year accuracy guarantee (no calibration required for 5 years).
● No calibration required for 5 years ● The detection principle recommended by the Ministry of Economy, Trade and Industry is an optical sensor ● Long-term stability achieved through automatic CO2 calibration function ● Temperature compensation function ● Excellent resistance to contamination ● Installation in hard-to-maintain locations such as high places ● No calibration required for 5 years ■ The EE850 is a CO2 concentration measuring device suitable for applications such as ventilation systems and building automation. ■ To compensate for aging degradation, it employs E+E's unique dual-wavelength non-dispersive infrared (NDIR) CO2 sensor, which is resistant to contamination and provides stable long-term measurements. ■ The humidity detection component is protected from dust, dirt, and corrosion by E+E's unique sensor coating. ■ In addition to measuring carbon dioxide, relative humidity, and temperature data, the dew point calculated through temperature and humidity conversion can be output via analog output (voltage/current selectable), and a passive temperature sensor with a two-wire connection can also be selected as an additional option. For more details, please download the catalog or contact us.
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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 + reading 2%) 0-5000 ppm <±(50 ppm + reading 3%) 0-10000 ppm <±(100 ppm + reading 5%) Output: 0 – 5 / 0 – 10 V -1 mA < IL < 1 mA 4 – 20 mA RL < 500 Ω RS485 (up to 32 devices can be connected per bus) Modbus RTU or BACnet MS/TP <Temperature> Measurement Range: -20 to +60℃ Output: 0 – 5 / 0 – 10 V -1 mA < IL < 1 mA <Humidity> Measurement Range: 0 to 95 %RH Output: 0 – 5 / 0 – 10 V -1 mA < IL < 1 mA <Common Specifications> Power Supply: 15 to 35 VDC or 24 VAC ±20%
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● Building air conditioning ● Ventilation equipment ● Air conditioning and process management among others
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We introduce various measuring instruments and devices related to moisture management, including the domestic capacitive dew point meter TK-100 series, mirror-type dew point meters, oxygen concentration meters, humidifiers, and moisture meters for corrosive gases. By organically combining these, as well as through piping, line creation, and unitization, we provide custom-made products and respond quickly to complex issues.
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