extrAir
extrAir
Air quality measurement in road tunnels
Downloads
Description
extrAir is an innovative, integrated sensor system for detecting air quality parameters in road tunnels, based on extractive sampling technology.
Developed by combining the most reliable technologies into a single, compact extractive system – with maximum focus on quality and robustness – extrAir enables real-time detection, visualization, logging, and remote transmission of the key parameters that define air quality inside tunnels.
Specifically, the extrAir system is capable of measuring the following parameters:
- Opacity (OP)
- Nitrogen Dioxide (NO₂)
- Carbon Monoxide (CO)
- Wind Speed and Direction (WS&D)
- Additional parameters on request
- All measured values are processed and stored within the Sicon control system, which also includes built-in datalogging functionality.
Technical specifications
| OP Sensor | |
| Measurement principle | 30° scattered light |
| Wavelength | 880 nm |
| Measurement range | 0..100 PLA / 0..3000 mE/m |
| Resolution | ± 0,001 mE/m |
| Response time | 2s |
| CO Sensor | |
| Measurement principle | Latest-generation electrochemical |
| Max Measurement range | 0 .. 5.000 ppm |
| Resolution | 0,5 ppm |
| NO2 Sensor | |
| Measurement principle | Latest-generation electrochemical |
| Measurement range | 0 .. 20 ppm |
| Resolution | ± 0,25% of full scale |
| Anemometer | |
| Measurement principle | Ultrasonic transit time |
| Measurement range | -60 .. +60 m/s configurabile |
| Resolution | 0,01 m/s |
| SICON Control Unit | |
| Display | 3.5″ TFT with touchscreen |
| Outputs | 4 outputs 0/4..20 mA, 7 digital outputs |
| Inputs | 4 inputs 0/4..20 mA, 5 digital inputs |
| Cabinet | |
| Dimensions | 1000 x 1500 x 600 mm |
| Power supply | 100..240 VAC, 47..63 Hz |
| Ambient temperature | -10..+40 °C |
| Ambient humidity | 0..100% RH non-condensing |
| Protection class | IP65 |
