ENVEA

- Model Cairsens PM - Miniature Solution for Real-Time Continuous PM1, PM2.5 & PM10 Monitoring

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The last generation of Cairsens micro-sensors for Particulate Matters (PM) monitoring operates without any influence from moisture in ambient air. They measure PM1 and PM10 concentrations, with increased precision for PM2.5. The Cairsens allows a year of continuous maintenance-free operation, even in highly polluted and humid atmospheres. Thanks to its robust and miniature design, it is fully compatible with ENVEA’s turnkey AQMS station Cairnet. It can also be easily embedded into a specific integration process.

  • PM10, PM2.5 & PM1 real-time monitoring in the range 0 to 1 000 µg/m3
  • Heated air flow over 60% of relative humidity
  • High-performance solution for OEM integration or stand-alone measurement
  • Calibration guaranteed for 1 year an no maintenance (1 year lifetime)
  • Ultra-small, with low power consumption
  • Cost-effective solution for high performances
  • Ready to use and easy to integrate
  • Compliant with European directive 2008/50EC for indicative measurements

PM Cairsens® are manufactured and calibrated in France. Each sensor is delivered with a calibration certificate.

  • Indoor and outdoor air quality monitoring: Smart cities, Road-side & tunnels, parkings, airports, ship terminals…
  • Filter efficiency monitoring
  • Command and control with real time PM management levels: Industries, mines, manufacturing plants, green waste treatment plants and refineries
  • Providing data for air dispersion modeling
  • Help guaranteeing health and safety: mines, industrial sites, construction sites

  • Measured Parameter: PM1, PM2.5 & PM10
  • Measuring Range (3): 0 – 1 000 µg/m3
  • Particle size detection range ø: 0.3 – 10 µm
  • Certified* Detection Limit (2): < 5 µg/m3
  • Display resolution: 0.01 µg/m3
  • Linearity (2): R2 > 0.75
  • Uncertainty between sensors: < 5 µg/m3
  • Accuracy (slope) (2): 0.7 to 1.3
  • Sample conditioning: Controlled airflow, heated air flow over 60% relative humidity
  • Temperature effect: < 0.01 µg/m3/°C
  • Technology: Laser Light Scattering
  • Operating Relative Humidity: 0 to 95 HR % (no-condensing)
  • Operating Atmospheric Pressure: 500 to 1 500 mbar

(1) Laboratory operating conditions: 20°C ± 2°C / 50% RH ± 10% / 1013 mbar ± 5%
(2) According to our laboratory evaluation: daily averages measurements of PM10 and PM2.5 in comparison with a reference analyzer
(3) Arizona sand equivalent

Storage conditions

  • Temperature (°C): -20 to 70
  • Relative Humidity (% HR): 0 to 95 (no-condensing)
  • Pressure (mbar): 500 to 1500

System specifications

  • Lifetime: 1 year of continuous operation (10 000 h)
  • Power supply: 5V DC / 500 mA, USB port of a PC or Power bank (not provided)
  • Power Consumption: 250 mA max under 5V DC
  • Gas sampling method: Controlled airflow with fan, flow rate 2.5 L/min
  • I/O login & communications: UART, Modbus using micro-USB port.
  • LCD Display: Concentration in µg/m3, sensor lifetime remaining, operating status, memory available …
  • Control & data treatment board: Internal microprocessor for data acquisition and treatment, embedded timer.
  • Data Storage: 2 days for 1 min data, 30 days for 15 min data or 120 days for 60 min data
  • Download data mode: – Customized integration / DAHS
  • – Cairnet mini station (data export on Caircloud®) (option)
  • Weight: 370 g

Compliance to environmental regulations

  • Electrical safety: NF EN 61010-1: 2010
  • Electromagnetic Compatibility: NF EN 61326-1: 2013
  • Protection Index: IP 42 (according to IEC 60529)
  • European directive: 2008/50/EC

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