CHAPTER 1
Product Overview
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.
Product Description
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
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