Intelligente CO2 sensor | muurmontage | LED indicatoren | Po

€ 220,50

390sinds 30 dec. '24, 13:10

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The temperature, humidity and CO2 level in the room are controlled via Modbus RTU communication. The supply voltage is 24V DC PoM, which means that Modbus RTU communication and a 24V DC power supply can be connected via a single RJ45 connector.

You can replace the CO2 sensor element if necessary. The ambient light sensor can be used in many different applications to control the ventilation system based on the number of people in the room. With Modbus RTU all settings can be adjusted and the measurements and output value are accessible. In addition, the light intensity of the LEDs used for status indication can be changed.

Commercial and residential applications are the most common applications where this sensor is used.

Photoacoustic sensing technology
People produce CO2 or carbon dioxide when breathing. Therefore, the CO2 concentration is a good indicator of the occupancy and activity level in a room. In many applications, CO2 sensors are used as an indicator of the ventilation requirement . This HVAC transmitter provides a clear, visual indication of the CO2 level via the green, yellow and red LED. The green LED indicates that the CO2 level is within range - there is sufficient fresh air supply. If the CO2 level enters the warning range, the yellow LED lights up. Red means that the CO2 level is too high or that there is insufficient fresh air supply. The measured temperature, relative humidity, CO2 and ambient light level are available via Modbus RTU. Photoacoustic sensing technology is used to measure the CO2 level. This makes the sensor very sensitive and specific, making it useful for the detection of various gases. The use of specific infrared wavelengths that correspond to CO2 absorption lines ensures that interference from other gases is minimized.How to control the supply of fresh air?
The output of this sensor can directly control an EC fan, a speed controller for AC fans or a damper actuator . The output value varies proportionally in function of the measured temperature, humidity and CO2 concentration. If more fresh air is needed, the sensor increases the fan speed or opens the damper.Reduced installation time
This sensor can be connected with just one RJ45 connector. Power over Modbus, or PoM, connects Modbus RTU communication and a 24 V DC power supply via a single UTP cable. To simplify wiring, we recommend using a Sentera 24 VDC power supply with RJ45 connector. These power supplies offer short circuit, overload and overvoltage protection. A 24 V DC supply voltage improves the safety and reliability of your installation.Easy to use
This sensor requires very little configuration . Once installed, it is ready for use almost immediately. Temperature and relative humidity are often regional and seasonal . These parameters are adjusted to the correct values during installation. The other default settings are suitable for most applications. However, they can also be adjusted if necessary via the respective Modbus registers. The light levels of the LEDs used for status indication are adjustable and you can choose to disable one or more readings . The Modbus register map provides a complete list of all programmable settings.Self-calibrating to compensate for sensor drift
The ABC logic self-calibrating algorithm is enabled by default. This algorithm is designed for use in applications where the CO2 concentration drops outside ambient conditions (400 ppm) at least once (15 minutes) in a 7 day period, which typically occurs during periods of unoccupied conditions. The sensor will achieve its operational accuracy after 25 hours of continuous operation in a condition where it has been exposed to ambient reference levels of air containing 400 ppm ± 10 ppm CO2.Wall Mounting
The enclosure provides IP30 protection against dust and moisture ingress. The enclosure can be wall-mounted indoors. For optimum performance, the enclosure should be protected from direct sunlight.