.webp "Flush mounting carbon dioxide sensor")
.webp "Flush mounting carbon dioxide transmitter")
.webp "Flush mounting carbon dioxide meter")
.webp "Flush mounting carbon dioxide controller")
.webp "Flush mounting carbon dioxide sensor visual alert")
.webp "Flush mounting carbon dioxide transmitter visual alert")
.webp "Flush mounted CO2 sensor")
EU declaration conformity
CO2 controller | flush mounting | LED indicators | 24 V DC
Product description
This device measures temperature, humidity, CO2, and ambient light.
Measurement & Control: It offers fan/damper management with a single 0-10V output. You can select ranges and control fan speed based on temperature, relative humidity, and CO2. Ventilation can be adjusted using an ambient light sensor (with adjustable levels).
Power & Connectivity: It operates on 24 V DC and connects via spring terminals.
Communication & Customization: All data and settings are accessible via Modbus RTU (RS485). The firmware is updatable (via bootloader).
It features a replaceable CO2 sensor and adjustable LED light intensity.
Mounting: It's suitable for surface or flush mounting.
Additional specifications and description
How Do CO2 Sensors Indicate Indoor Air Quality and What Parameters Do They Measure?
Carbon dioxide, or CO2, is created by breathing. Because of this, CO2 concentration serves as a reliable gauge of a room's occupancy and activity level. CO2 sensors are used in many applications as a ventilation requirement indicator. The green, yellow, and red LED of this HVAC sensor controller provide a distinct, visual indication of the CO2 level. The green LED shows that there is enough fresh air supply and the CO2 level is within range. The yellow LED turns on when the CO2 level reaches the alert range. Red indicates either an out-of-range CO2 level or insufficient fresh air supply. Modbus RTU provides access to the measured temperature, relative humidity, CO2, dew point, and ambient light level. Photoacoustic sensors are highly sensitive and specific, making them useful for the detection of various gases, such as pollutants, trace gases, and volatile organic compounds. The use of specific infrared wavelengths that correspond to CO2 absorption lines ensures that interference from other gases is minimised.
Which Devices Does the Sensor's Output Control, and How Does It Function?
This sensor's output can operate a damper actuator, an AC fan speed controller, or an EC fan. In proportion to the measured temperature, humidity, and CO2 concentration, the output value changes. The sensor will speed up the fan or open the damper if more fresh air is needed.
What Are the Sensor's Power and Wiring Requirements?
The cage clamp terminal blocks shorten installation and wiring times. They guarantee a dependable contact for solid or stranded wires and eliminate the need for routine maintenance. The supply voltage is 24 V DC. The power supply's (V-) and output's (GND) ground terminals are not connected internally. Therefore, a 4-wire cable is necessary to connect this sensor. Most 24 V DC power supplies provide protection against overload, short circuit, and overvoltage. The safety and dependability of your installation are increased by using a 24 V DC supply voltage.
What Are the Protection and Mounting Features of the Sensor Enclosure?
The enclosure provides IP30 protection from the entry of moisture and dust. It supports inset or surface mounting. It should be shielded from direct sunlight to ensure peak performance. This sensor can be installed in a typical European wall mounting box or on a flat wall. When flush mounted, only the front plate will be visible on the wall.This sensor requires very little configuration. It is almost directly usable once it has been installed. Temperature and relative humidity are often region- and seasonal-specific. These parameters are still adjusted to the correct values during installation. The other default settings will be suitable for most applications. However, they can also be adjusted via the respective Modbus registers if necessary. A different output type, for example, 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 deactivate one or more measurement values. The Modbus register map provides an exhaustive list of all programmable settings.
How Does the ABC Logic Self-Calibration Algorithm Work?
By default, the ABC logic self-calibrating algorithm is on. This algorithm is intended for use in situations where CO2 levels drop to outside ambient conditions (400 ppm) at least once (15 minutes) in a 7-day period, which is typically observed during unoccupied times. After 25 hours of continuous operation while being exposed to ambient reference levels of air at 400 ppm 10 ppm CO2, the sensor will reach its operational accuracy.
∞ Monitoring air quality
By default, the ABC logic self-calibrating algorithm is on. This algorithm is intended for use in situations where CO2 levels drop to outside ambient conditions (400 ppm) at least once (15 minutes) in a 7-day period, which is typically observed during unoccupied times. After 25 hours of continuous operation while being exposed to ambient reference levels of air at 400 ppm 10 ppm CO2, the sensor will reach its operational accuracy.
∞ Monitoring air quality
Remarks, reviews & ratings