Partisol 2000-D Dichotomous Air Sampler

Downstream from its PM-10 inlet, the unit contains a traditionial virtual impactor for separating the coarse particles (2.5 to 10 micron diameter) from the majority of the fine particles (less than 2.5 micron diameter). Two independent mass flow controllers automatically maintain a constant 16.7 l/min volumetric flow rate through the PM-10 inlet, with a 1.7 l/min volumetric flow rate directed through the coarse particle sample filter and a 15 l/min flow through the fine particle sample filter. High-quality, molded Partisol-FRM style filter cassettes house the two 47 mm filters used to collect the coarse and fine PM. Both sample filter cassettes are installed in a convenient filter cassette carrier. and filter exchange assembly that allows fast and simple collection filter removal.

The Partisol Model 2000-D Air Sampler contains an onboard microprocessor system that provides the sampler's operating program and a large internal data storage buffer. A keypad and multi-line display screen provide the interface to the menu-driven software. The Partisol "Dichot" can be programmed to sample for any desired time period with user-defined start and end date/time input. The sampler provides run-time information such as total sample volume and performance diagnostics.