The DF-PM2.5DTE high volume PM2.5 Air Sampling System is designed for remote unattended continuous air sampling applications. The DF-PM2.5DTE Air Sampler features a brushless motor with electronic motor speed control that maintains a user selectable flow rate. The flow rate range attainable through the filter media is dependent upon the air porosity of the 20.3 cm × 25.4 cm (8” × 10”) filter media. The DF-PM2.5DTE design accommodates rapid field service and component replacement.
The basic components of the system are assembled in a modular fashion so that each component can be readily and independently removed for service. The DF-PM2.5DTE system can easily be converted to a TSP system with the proper accessories.
The electronic flow control measurement sub-system of the DF-PM2.5DTE air sampler provides a corrected flow measurement to a reference T and P or ambient conditions. The air flow is measured by a precision-machined differential pressure sensor. The controller can be set to a maximum sampling flow rate value within the calibrated flow range depending on the filter paper air resistance. The bright LED readout displays multiple air sampling information including current flow rate, current elapsed sample time and totalized volume. The DF-PM2.5DTE model utilizes an 20,3×25,4 cm (8”×10”) filter media.
