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Air Quality Monitoring


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Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making. Monitor common gases, weather parameters, particulates.

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Air Quality Monitoring

  1. 1. Orion AQM Series™ Air Quality Monitoring Stations
  2. 2. W: P: 503-629-0887 E: 2 Index Section Page Features 4 Components 7 • Sensors 8 • Monitoring 17 • System Configuration 20 • Mechanical Specs 22 Operating Environment 24 Maintenance and Calibration 25 Support 26
  3. 3. W: P: 503-629-0887 E: 3 The Orion AQM series professional air quality monitoring systems provide for immediate, on- site data for analysis, compliance, and decision- making. Near reference measurement performance offers significant value over traditional AQ monitoring. Orion AQM measures the most common gaseous pollutants. In addition, the AQM Plus also measures particulate matter (PM2.5 and PM10). Measurements also include ambient air temperature, relative humidity, and barometric pressure sensors. New Value in Air Quality Monitoring Measurement performance is based on proprietary advanced algorithms that enable parts per billion (ppb) measurements at an affordable price by using electrochemical sensors. Using the met sensor data, the algorithms compensate for the impact of ambient conditions and aging on the sensor elements and remove the need for costly gas sampling and maintenance equipment.
  4. 4. W: P: 503-629-0887 E: 4 • Measures four most common urban air pollutants: NO2 , SO2 , CO, and O3 • Intelligent algorithms compensate for environmental conditions and for the aging of the sensor element • Compact design; easy to deploy in the field • Low power consumption (typically 0.5 W) • Weather MicroServer for data collection, calculated averages, and Air Quality Index (AQI) for all parameters • Optional cellular communication • CWS Weather Server for monitoring through the Cloud Features
  5. 5. W: P: 503-629-0887 E: 5 Applications • Urban air quality networks • Industrial emission monitoring • Safety monitoring • Roadside monitoring • Building monitoring • Air quality research
  6. 6. W: P: 503-629-0887 E: 6 The Orion AQM is specifically designed for air quality monitoring networks in urban areas, road networks, or around industrial sites and transportation hubs. Thanks to its small weight and compact size, the Orion AQM is ideally suited for deployment even in large air quality networks. Monitoring is accomplished via the Weather MicroServer which receives the measurement data via a serial connection. Easy to Deploy Networks The MicroServer calculates sensor averages and air quality index (AQI) for all the parameters. The data is stored in data log files (CSV format) on a one-minute interval with a one-year storage capacity. The MicroServer can upload the data to the Internet including our CWS Cloud Weather Server.
  7. 7. 7 Components • AQM Sensor/Transmitter • Weather MicroServer™ • WeatherMaster™ Software • Optional Orion 532/533 wind/rain sensors • Optional cellular communication W: P: 503-629-0887 E:
  8. 8. 8 Sensors Orion AQM™ Measures common gaseous pollutants: • Nitrogen dioxide (NO2) • Sulphur dioxide (SO2) • Carbon monoxide (CO) • Ozone (O3) Meteorological parameters: • Temperature • Humidity • Barometric Pressure W: P: 503-629-0887 E:
  9. 9. 9 Sensors Orion AQM Plus™ Measures common gaseous pollutants: • NO2 • SO2 • CO • O3 Meteorological parameters: • Temperature • Humidity • Barometric Pressure Plus Particulate Matter: • PM2.5 • PM10 W: P: 503-629-0887 E:
  10. 10. W: P: 503-629-0887 E: 10 Sensors Gas Measurement Technology The gas measuring technology is based on proprietary advanced algorithms and electrochemical technology. The sampled gas causes a reduction or oxidation reaction in an electrochemical cell. Both reactions create a weak electric current. The electric current is directly dependent on the volume of measured gas. By measuring the electric current and using advanced calculation and compensation algorithms, the AQM calculates the gas content. Most electrochemical cells are highly susceptible to ambient conditions (temperature and humidity), but the AQM reverses the impact with a proprietary adjustment and compensation system, which guarantees accurate ppb measurements. The electrochemical cells require a stabilization period of at least 24 hours after switching the device on before using the measurement results. To ensure optimal measuring accuracy, a 48-hour stabilization period is recommended. The devices take measurements during the stabilization period, but the measurements are marked as invalid.
  11. 11. 11W: P: 503-629-0887 E: Sensors Gas Measurement Performance Specs Gas Range Detection Limit Field Accuracy NO2 2000 ppb 5 ppb ±25 ppb SO2 2000 ppb 5 ppb ±50 ppb CO 10000 ppb 10 ppb ±200 ppb O3 2000 ppb 5 ppb ±60 ppb
  12. 12. W: P: 503-629-0887 E: 12 Sensors Laser Particle Measurement Technology The technology of the laser particle counter in the Orion AQM Plus is based on the scattering of laser light caused by passing particles. With the help of optics and photosensitive sensors, the laser particle counter measures the angular scattering intensity data and analyzes it with digital signal processing (DSP). The method allows measuring of particles of sizes 0.3 ... 10 µm, and calculating the particle masses PM2.5 and PM10. The laser particle counter is a Class 1 laser product.
  13. 13. 13W: P: 503-629-0887 E: Sensors Particle Measurement Performance Specs Particle counter channels PM2.5 and PM10 Particle diameter range 0.3 - 10 μm (spherical equivalent) Sampling time 1 min Sampling interval 10 min Sample flow rate 0.9 SLM Measurement range PM10: 0 - 5000 µg/m3 Measurement resolution 0.1 μg/m3
  14. 14. 14 Sensors Met Measurement Technology Incorporating temperature, humidity, barometric pressure, algorithms compensate for the impact of ambient conditions on the sensor elements. W: P: 503-629-0887 E: Humidity Accuracy 0 - 90 %RH: ±5 %RH 90 - 100 %RH: ±8 %RH Humidity Resolution 0.1 %RH Temperature accuracy (at +20°C/68°F) ±0.3 °C (0.17 °F) Temperature resolution 0.1°C / 0.1 °F Pressure accuracy ±10 hPa Pressure resolution 1 hP
  15. 15. 15 Sensors Industrial Enclosure With an enclosure made of anodized aluminum and stainless steel, and a protective rating of IP65, the AQM sensors are built to withstand industrial environments. W: P: 503-629-0887 E:
  16. 16. Sensors (Optional) Orion 532/533 Wind Speed and Direction/Rainfall The Orion 532 measure wind speed and direction are measured using an advanced ultrasonic sensor. The accurate wind sensor has no moving parts, which makes it maintenance free. The measurement range for wind speed is from 0 to 134 mph (0 to 60 m/s) and for wind direction from 0 to 360°. The Orion 533 combines wind speed and direction and rainfall measurements. The rain sensor utilizes an impact piezoelectrical sensor with no moving parts. W: P: 503-629-0887 E: 16
  17. 17. Monitoring Weather MicroServerTM A hardware component that provides datalogging, Network/Internet communications and industrial protocols for automation systems. Features: • Modbus RTU + Modbus TCP/IP • FTP output (XML and CSV) • XML web service Internet browser user interface • Datalogging capability • Optional monitoring with WeatherMaster™ Software • Two general-purpose analog channels • Additional sensors: Solar Radiation, Visibility, and CO2 W: P: 503-629-0887 E: 17
  18. 18. Monitoring Cloud-based Weather Server Real-time web monitoring included free with the Weather MicroServer to access weather data from any Internet-enabled device. Features: • For one or multiple systems • Data is automatically uploaded every 5 seconds • A security solution for customers who are unable to upload data (via FTP) to their website or implement port forwarding for the MicroServer • A no-hassle weather website for your organization • Customization available. W: P: 503-629-0887 E: 18
  19. 19. Monitoring A professional-grade weather software for robust meteorological calculations and interoperability with computer models. Features: • Real-time monitoring + calculated parameters • Data logging and reports • Multi-station monitoring • Alarm notification • Email/text weather reports to multiple recipients For Weather Parameters: • Automatic CAMEO/ALOHA Interface • Automatic interface to Weather Underground™ W: P: 503-629-0887 E: 19 WeatherMaster Software™
  20. 20. System Configuration 20
  21. 21. Optional Cellular Communication 21
  22. 22. 22 Mechanical Specs Dimensions: (H × Ø) AQM Plus: 208 × 132 mm (8.19 × 5.20 in) AQM: 128 × 132 mm (5.04 × 5.20 in) Weight: AQM Plus: 1.25 kg (2.76 lb) AQM: 0.7 kg (1.52 lb) Material, base module: Anodized aluminum Material, radiation shield: Polycarbonate (PC) Color, radiation shield: White (RAL9003) W: P: 503-629-0887 E:
  23. 23. Mechanical Drawings
  24. 24. 24 Operating Environment Operating temperature: −30 ... +40 °C (−22 ... +104 °F) With limited performance: −40 ... +50 °C (−40 ... +122 °F) Operating humidity: 15 ... 95% RH, non-condensing Operating pressure: 800 ... 1200 hPa EMC compliance: EN/IEC 61326-1 EN 55032 Class B IP rating: IP65 W: P: 503-629-0887 E:
  25. 25. 25 Maintenance and Calibration The following maintenance is recommended: • Remove visible obstructions and dust • Change electro chemical gas cells every 12 ... 36 months by a qualified technician locally • For the AQM Plus, replace the LPC filter every 6 ... 12 months • The combined humidity and temperature sensor is recommended to be replaced every two years for optimal calibration Maintenance tasks can be performed by a qualified technician or the module can be returned to the factory for service. W: P: 503-629-0887 E:
  26. 26. Support 26 The User Manual is a comprehensive source of information with detailed instructions. Personal, technical support is free via phone and/or email. W: P: 503-629-0887 E:
  27. 27. Headquartered in Hillsboro, Oregon, CWS manufactures the Orion AQM and AQM Plus air quality monitoring systems and the Orion, Pulsar, Magellan, and Capricorn lines of weather stations, distributing them around the world. Key markets include professionals in public safety, military, government and industry. In 1998 CWS was spun off from our sister company Hinds Instruments has been in operation since 1971. CWS is known for advanced technology and personal customer service, offering flexibility and quick response to customer needs. About Columbia Weather Systems 27
  28. 28. Thank You We make environmental monitoring easy so you can do your job more effectively with the right equipment for your requirements and budget. 28W: P: 503-629-0887 E: