C H A P T E R 1
P r o d u c t O v e r v i e w
1-1
This chapter contains an introduction to the Model 3786 Ultrafine
Water-based Condensation Particle Counter (UWCPC) and provides
a brief explanation of how the system operates.
P r o d u c t D e s c r i p t i o n
The Model 3786 UWCPC is a continuous sheathed laminar flow
instrument using water as its working fluid. The UWCPC provides
rapid measurement of ultrafine particles in air.
Features include:
Uses water as a working fluid
Detects particles down to 2.5 nm at a high aerosol flow rate of
0.3 L/min
•
Fast response to change in aerosol concentration (T
95
<2
seconds)
•
Sheath-air-flow design minimizes diffusion losses and produces
a sharp lower cut-point
•
Single particle counting with continuous, live-time coincidence
correction for maximum accuracy
•
Display provides output of particle concentration, total counts,
or plots of concentration vs. time
•
Built-in Scanning Mobility Particle Sizer
TM
(SMPS) Spectrometer
compatibility
