“ Key points :
Four mass ranges (PM1, PM2.5, PM10 and TSP)
Robust design
Real time monitoring
Example of history
Low cost with data logging
Air purge system ”
The Met One Instruments BT-645 portable dust monitor was designed to continuously measure and record particulate information for indoor workplaces and public spaces.
The BT-645 optical laser sensor is used to detect and measure particle concentrations up to 100 milligrams per cubic meter. The continuous flow optical sensor is combined with purge air to ensure accurate measurements in adverse environments. The internal data logger will store over 11,000 samples. Examples of historical events can be viewed on-screen or downloaded to a computer using Comet software. The BT-645 internal battery provides more than 10 hours of continuous operation. The battery recharge time is approximately 2.5 hours. The standard unit is supplied with a TSP input. Optional sampling inputs are available for PM1, PM2.5 and PM10.