CO2 sensor | wandmontage | LEDs | 24 VDC

€ 244,84

240sinds 30 dec. '24, 13:10

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Beschrijving

Temperature, relative humidity, CO2 and ambient light sensors for HVAC systems. This carbon dioxide sensor is typically used to monitor CO2 levels in schools, offices, restaurants, etc.

The CO2 level is visually indicated by the green, yellow and red LED indicators. The LEDs used for status indication have adjustable light levels.

The measured values are transmitted via Modbus RTU communication and three analogue outputs. The output type is 0-10 Volt as standard. Various types of outputs are available. The ventilation system can be controlled based on the occupancy of the room using ambient light detection.

24 V DC is the supply voltage. All parameter settings can be adjusted via Modbus RTU communication.

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.Three analog outputs to transmit measured values
This sensor has three analog 0-10 Volt outputs. Each output transmits one of the measured values. For example, by default output 1 transmits 0 Volt at 0 °C and 10 Volt at 50 °C. Each output value varies proportionally in function of the measured temperature, humidity or CO2 concentration. The measured temperature is available via output 1, the relative humidity via output 2 and the CO2 concentration via output 3. By default, the output type is 0-10 Volt. Other output types can be selected via the Modbus holding registers.Visual display of the measured value
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 will light up. Red means: CO2 out of range or insufficient fresh air supply. The ranges can be adjusted via the Modbus registers. The LED indicators can display the status of one of the three measured values, by default CO2.4-wire connection
The spring terminals reduce wiring and installation time. They eliminate routine maintenance and ensure reliable contact for solid or stranded wires. The supply voltage is 24 VDC. The ground terminals of the supply (V-) and output (GND) are not connected internally. This means that a 4-wire cable is required to connect this sensor. Two wires for the supply voltage and (at least) two wires to connect the output(s). Most 24 VDC power supplies offer protection against short circuits, overloads and overvoltage. A 24 VDC supply voltage increases the safety and reliability of your installation.Self-calibrating to compensate for sensor drift
The ABC logic self-calibrating algorithm is enabled by default. This algorithm is intended for use in applications where the CO2 concentration drops outside ambient conditions (400 ppm) at least once (15 minutes) in a 7 day period, as is typical during periods of unoccupied operation. The sensor will achieve operational accuracy after 25 hours of continuous operation when exposed to 400 ppm 10 ppm CO2Surface mounted sensor installed on wall socket
This sensor can be installed indoors on a wall or on a surface. The mounting holes are adapted to standard European wall mounting boxes. The sensor can be attached to the wall mounting box with two screws. The sensor housing covers the entire wall mounting box. For optimal performance, the sensor should be protected from direct sunlight.Contemporary design housing
The housing is designed for indoor use. It offers IP30 protection against dust and moisture ingress. The housing is exceptionally strong thanks to the use of high-quality r-ABS plastic. Thanks to the contemporary modern design, this sensor can be used in most interior styles.