Aerosol Charge NeutralizerModel 9000
Description
The charge neutralizer produces a reproducible, bi-polar equilibrium particle charge distribution for scanning mobility sizer, electrostatic precipitator and particle charging experiments. With two Model 2U500 Polonium-210 sources, the neutralizer will operate for 3 years before new sources are needed. The unit may also be used to bring highly charged aerosol from atomizers and other sources to charge equilibrium to help reduce electrostatic losses.
Learn About Product
All Features
• Stainless steel construction
• Ultra-clean high vacuum brazing construction
• Total activity of 1 millicurie (37 MBq)
• High maximum flow rate 5 lpm
• Maximum recommended input number concentration 10^5-10^6 /cc
Benefits
• Conveniently integrated into your sampling system
• Easy to clean
• Ultra-safe and inexpensive off-the-shelf sources
• 3-year useful source life before replacement
Technical Specs
Copyright ©2026 All specifications are subject to change without notice. BMI assumes no responsibility for inaccuracies in this document or for any obligation to update information in this document. BMI reserves the right to change, modify, transfer or otherwise revise this publication without prior notice.
*Some products may be shown with optional accessories, which are sold separately. Items shown may not be to scale.
Applications and Solutions
• Continuous monitoring of ambient size distributions using the Brechtel SEMS or mSEMS
• Hygroscopic growth measurements using the Brechtel HTDMA
• Neutralization of atomizer output for instrument characterization
• Laboratory flow-tube reactor studies
• Cloud condensation nucleus studies
• Visibility reduction studies
• Aerosol health impacts
• Long-term climate and air quality monitoring
• Rapid number size distribution measurements
Software
What's Included
• Operator’s manual
Accessories
