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.
The Cairsens® allow for continuous maintenance-free operation during their lifetime, even in highly polluted and humid atmospheres.
Thanks to their robust and miniature design, they are fully compatible with ENVEA’s turnkey AQMS station Cairnet®. They can also be easily embedded into a specific integration process.
Application examples:
| Technical Specifications | |
|---|---|
| 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 |
| Metrological performances according to the European Directive 2008/50/EC are guaranteed for 12 months |
|
(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 |
| Technical specifications | |
|---|---|
| Sampling method | Dynamic air sampling, with a controlled micro-fan |
| Power supply | 5V DC / 500 mA, USB port of a PC or Power bank type «Always on» (not provided) |
| Power consumption | 250 mA max under 5V DC |
| I/O communications | USB, UART, Modbus RTU-TTL. Modbus RS445 on request (article code A40-0219) |
| Lifetime duration | 24 months |
| LCD Display | Concentration in µg/m3, operating status, memory available … |
| Control & data treatment | Internal microprocessor for data acquisition and treatment, embedded timer |
| Data Storage (internal) | 2 days for 1 min data, 30 days for 15 min data or 120 days for 60 min data |
| Download data mode | – Cairsoft (free download) – e-SAM DAHS system or Customized integration – Cairnet® Mini-stations with data exported in the Caircloud® |
| Weight | 370 g |
PM Cairsens® are manufactured and calibrated in France. Each sensor is delivered with a calibration certificate.
| 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 |
