Intelligente CO2 sensor | wandmontage | LED indicatoren | 24

€ 241,79

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10sinds 10 jan. '25, 08:40

Beschrijving

Temperature, relative humidity, CO2 (carbon dioxide) and ambient light are all measured with this CO2 meter.

You can choose between a supply voltage of 24 V AC or 24 V DC. Based on all measured values, the sensor algorithm controls a single 0-10 V output. An EC fan, a speed controller for AC fans or a valve actuator can all be controlled directly by this one output. The CO2 sensor component can be replaced if necessary.

The ambient light sensor can be used in various applications to control the ventilation system based on the number of people present in the room. Via Modbus RTU communication all measurements and the output value are available and adjustments can be made for each setting.

The housing is suitable for surface mounting.

Photoacoustic sensing technology
People produce CO2 or carbon dioxide when they breathe . 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.Easy to connect
The spring terminals simplify wiring and installation. They eliminate routine maintenance and provide a reliable contact for solid or stranded wires. This sensor can be powered by 24 V DC or 24 V AC. It is designed for a three-wire connection. The output ground (GND) is internally connected to the supply ground (V-). Ensure that this common ground is not connected to other devices that operate on DC voltage.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 . For example, a different output type can be selected to make it compatible with other devices: 0-10 VDC; 0-20 mA; 0-100% PWM; Modbus RTU. 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.