Aereco introduces its new range of sensors to measure the concentrations of CO2, VOCs and humidity to control buildings HVAC system. Fully calibrated, the three sensors (S-CO2, S-VOC and S-RH/T) can be easily integrated to your HVAC system to guarantee a smart and simple building management.
Accurate device to measure CO2 concentration reliably.
Accurate measurement of VOC concentration and odors.
Digital humidity and temperature sensor.
2 outputs for easy connection: analog (0-10V) and digital (PWM).
Can be adapted to different markets and applications.
Compact design, simple to install, ready to use.
No maintenance.
Indoor air quality can generally be assessed by measuring the concentration of carbon dioxide, known to be representative of indoor air conditions. The S-CO2 is useful in many places (such as schools, office buildings, and private homes) where the concentration of CO2 can vary with the occupancy and use of the rooms. Its technologies ensure long-term stability and performance: the S-CO2 is pre-calibrated to measure, in real time, indoor CO2 concentrations from 0 to 2000 ppm, and it delivers both analog (0-10 V) and digital (PWM) output signals. Thanks to its dual-beam measurement technology, the S-CO2 can be placed in any room, at any time, whatever the installed system. The Aereco CO2 sensor integrates the NDIR technology, a selective auto-calibrated technology that allows a good assessment of the indoor air quality.
The S-VOC is designed to accurately and reliably assess the level of volatile organic compounds (VOCs) typically associated with cigarette smoke, cooking smells and other pollutants. Using the MOS technology, the S-VOC measures the concentration of VOC and odours at a real time and evaluates the CO2 level of the room (see graph below). Its output signal reports values from 0 to 2000 on a “ppm CO2 equivalent” IAQ scale. This output signal is available simultaneously in two forms: analog (0-10V) and digital (PWM).
The S-RH/T is designed for applications such as demand-controlled ventilation and air conditioning where accurate measurements, excellent long-term stability, and maintenance free-operation are absolute musts. The temperature and humidity measurements are available simultaneously to optimize their contribution to comfort and health.
| S-CO2 | S-VOC | S-RH/T | ||
| Standard code | CAP1159 | CAP1160 | CAP1161 | |
| Measurement principle | Non-Dispersive Infrared Technology (NDIR), Dual-Source Infrared System | Micro-machined metal oxide semiconductor (MOS) technology | Capacitive humidity sensor Band gap temperature sensor | |
| Working range | 0…2 000 ppm CO2 | 0…2 000 ppm CO2 eq | 0°C + 50°C 0% – 100% Relative Humidity | |
| Accuracy at 25°C and 1 013 mbar | ppm | ± (60 ppm +2 % of measured value in a [0 ppm; 2000 ppm] range) | – | – |
| Response time | s | < 195 s | – | – |
| Temperature dependence | CO2 / °C | typ. 2 ppm CO2 / °C (0…50°C) | – | – |
| Long-term stability | ppm / year | typ. 20 ppm / year | – | – |
| Precision RH | – | – | typical +/-2,5 %, max +/-3,5 % RH at 25°C in 20 % -80 % range | |
| Accuracy of temperature | – | – | max +/-0,6°C in [5°C ; 50°C] range, typical 0,5°C | |
| Measurement reporting interval | s | 60 s | 60 s | 60 s |
| Supply voltage | VDC | 12 VDC +/- 10 % | 12 VDC +/- 10 % | 12 VDC +/- 10 % |
| Average power consumption | A | 120 mA (reading), 10 mA (base). | 40 mA | 15 mA |
| Max. peak current | A | 1 A (use for fuse sizing) | 1 A (use for fuse sizing) | 1 A (use for fuse sizing) |
| Enclosure protection | IP 20 | IP 20 | IP 20 | |
| Storage conditions | -40…60°C 5…95 % RH (without condensating) 85…110 kPa | -25…50°C 5…95 % RH (without condensation) 85…110 kPa | 10…50°C 0…60 % RH | |
| Working conditions | -40…60°C 5…95 % RH (without condensating) 85…110 kPa | 0…50°C 5…95 % RH (without condensation) 85…110 kPa | – | |
| PWM digital output | ||||
| Output data | ppm | 0 % = 0 ppm ; 100 % = 2 000 ppm | 0 to 100 % 0 % = 0 ppm CO2 eq ; 100 % = 2 000 ppm CO2 eq | 0 to 100 % 0 % = 0 % RH – 100 % = 100 % RH 0 % = 0°C – 100 % = + 50°C |
| Voltage | VDC | 12 VDC +/- 10 % | 12 VDC +/- 10 % | 12 VDC +/- 10 % |
| Frequency | KHz | 1 KHz | 1 KHz | 1 KHz |
| 0-10 V analog outpout | ||||
| Output data | 0 to 10 V. 0 V = 0 ppm ; 10 V = 2 000 ppm | 0 to 10 V 0 V = 0 ppm CO2 eq ; 10 V = 2 000 ppm CO2 eq | 0 to 10 V 0V = 0 % RH – 10 V = 100 % RH 0V = 0°C – 10 V = + 50°C | |
| Voltage | V | 0 to 10 V | 0 to 10 V | 0 to 10 V |
| Required impedence | Ω | >1MΩ | >1MΩ | >1MΩ |
| Characteristics | ||||
| Weight | g | 80.5 g | 80.5 g | 80.5 g |
| Colour | white | white | white | |
| Material | ABS | ABS | ABS |
Occupancy sensor with light and temperature sensor for modbus communication
One of the biggest challenges, that we are encountering today is the balance between comfort, security and the efficiency of energy. When it comes to occupants’ comfort in an indoor area, both residential as well as non-residential markets, the building constructors are providing a best in class experience for the occupants with well-equipped building automation solutions.
CO2 and temperature sensor for Modbus communication
Nowadays, the buildings are nearly air-tight, entailing a risk of poor indoor air quality if there is a lack of ventilation. Indoor air quality can generally be assessed by measuring the concentration of carbon dioxide, known to be representative of indoor air conditions. Aereco introduces the new S-CO2/T Modbus, an effective CO2 sensor specially designed to accurately assess indoor CO2 concentrations, in order to help systems optimize indoor air quality.
VOC sensor with digital and analog outputs
CO2 sensor with digital and analog outputs
Relative humidity and temperature sensor with digital and analog outputs
