Environmental Monitoring Solutions
The system works on the 90-degree scattered light measurement principle on a single particle, considering signal duration and shape. Technology and algorithms were developed based on the EN 16450-certified Fidas ® 200.
Automatic calibration tracking of the measurement system allows operation for up to two years without recalibration. If necessary, the calibration status can be checked and corrected using a test dust calibrated by Palas.
Palas aerosol spectrometers are thus the only optical fine dust measuring instruments that can be calibrated against a traceable standard by the user at the point of operation.
Fidas® Smart 100 features Ethernet, WLAN, and mobile phone connectivity. All measured values are calculated and recorded directly and, if desired, can be transferred to Palas’ own cloud MyAtmosphere directly for visualization or further processing.
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| Measuring principle | Optical light scattering at single particles |
| Reported data | Particle size distribution, particle number concentration, mean volume diameter, equivalent diameter, water content |
| Measurement range (number CN) | 0 – 200 particles/cm³ |
| Measurement range (size) | 0.6 – 40 µm, 0.8 – 100 µm |
| Volume flow | 5 l/min |
| Size channels | 64 (32/decade) |
| Time resolution | 1 s – 24 h |
| Interfaces | USB, Ethernet (LAN), RS-232/485 |
| User interface | Touchscreen, 800 × 480 pixel, 7″ (17.78 cm) |
| Protocols | UIDEP, UDP, ASCII, MODBUS |
| Software | PDAnalyze |
| Data acquisition | Digital, 20 MHz processor, 256 raw data channels |
| Light source | Long term stable LED |
| Housing (Gehäuse) | Weatherproof housing, IP55 |
| Operating system | Windows 10 IoT Enterprise |
| Power supply | 115 – 230 V, 50/60 Hz |
| Installation conditions | -30 – +40 °C, <95% rH, non-condensing, max. 4,000 m (above sea level) |
| Sampling head (Probenahmekopf) | Sigma-2 passive collector, heatable with automated control |
| Dimensions | Approx. 1,150 × 742 × 404 mm (H × W × D) |
| Weight | Approx. 40 kg |
| Noise emission | < 60 dB(A) |
| Power consumption | Normal operation: approx. 60 W, max. 200 W |
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The Cairsens© sensor allows specific pollutant measurement comparable to reference methods. The high quality sensors are renowned worldwide by our customers looking for the newest technologies in air quality monitoring.
EN 16450 certified measurement technology
Dust aerosol spectrometer for simultaneous measurement of PM2.5 and PM10
The Cairsens© sensor allows specific pollutant measurement comparable to reference methods. The high quality sensors are renowned worldwide by our customers looking for the newest technologies in air quality monitoring.
The last generation of Cairsens® micro-sensors for Particulate Matters (PM) monitoring operates without any influence from moisture in ambient air. They measure PM1, PM2.5 and PM10 concentrations.
Ambient