PM 10 and PM 2.5 

Particulate Matter Moniter

The Vair-9009 by vasthi Instruments is a online real-time Beta attenuation moniter. The device continuously measures the particulate matter concentration of ambient paticulate collected on a glass filter tape with a time resolution of 1 hour. The Vair-9009 uses an in-line sampling geometry that meaures beta attenuation across the filter media while simultaneously sampling particles. This allows environmental samples to be taken 24/7 continuously. It also enables accurate reading of beta radiation measurements throught the hour, improving sensitivity and temporal resolution.

The Vair-9009 uses a unique 'in-situ' sampling technique to keep the beta ray meaurement  at a nearly constant temperature above ambient conditions. This prevents the loss of semi-volatile particulate matter or excess moisture in the sample stream, minimizing meaurements errors. Accurate meaurements are performed without the need for expensive Nation dryers, improving reliability and reducing operating costs. The integrated shelter does not use air conditioning, and the sampling system does not use flow splitters. This makes maintenance easier, improves reliability, and reducese power consumption.

The Vair-9009 is encased in a lightweight equipment shelter with an easily removable pump box, making it ideal for installation in places where permanent structures or walk-in shelters are not available. This device does not require an air conditioner, resulting in less power consumption. No component of the instrument weighs more than 40 pounds (18.14 kg), allowing it to be easily carried by one person. The user can get the whole system up and running in less than 10 minutes.

FEATURES :

The Vair-9009 offers the following Advanced Features:

• In-situ measurement of PM that provides high accurarcy, minimal measurement artifacts.
• Reduced background determination frequency.
• Unsurpassed performance under high ambient dew point operation.
• Advanced communications features allowing remote operation and cloud-based communication.
• Advanced diagnostics.
• Improved sensitivity compared to orther in-Line beta attenuation mass moniters.
• Meteorological and other sensor inputs. 
• Mass calibration system.