The DF-5200 Series Air Sampling Systems are designed for mobile high volume air sampling applications. The DF-5200 Series Air Samplers feature a brushed motor with electronic motor speed control that maintains a user selectable flow rate. The flow rate attainable through the filter media is dependent upon the air porosity of the filter media. The typical flow range is 10 to 60 SCFM (17 to 102m3/hr) are attainable with glass fiber filter media.
The DF-5200 Series design accommodates rapid field service and component replacement. The basic compo-nents of the system are assembled in a modular fashion so that each component can be readily and inde-pendently removed for service.
For durability and weather resistance, the system is housed in a mobile powder coat painted aluminum enclo-sure. The sample air is drawn in under the eaves of the hinged lid from all four sides and is exhausted out the side of the enclosure by a 239 CFM fan. The locking swing door on the enclosure provides convenient access for servicing the equipment inside. A lockable latch on the top cover restricts unauthorized tampering with the filter holder.
The electronic flow control measurement sub-system of the DF-5200 Series provides a reference standard flow measurement and an operator selectable constant flow of air through the filter medium. The air flow is measured by a precision-machined venturi differential pressure sensor. The controller can be readily set to any sampling flow rate between 10 to 60 SCFM (17 to 102m3/hr) depending on the filter paper air resistance and dimensions. The bright LED readout displays multiple air sampling information including current flow rate, current elapsed sample time and totalized volume. The filter holder can be custom designed to accommodate a variety of filter sizes and types. The DF-5200 standard model utilizes an 8”x10” (20,3×25,4 cm) filter.
