A-2 Model 3082 Electrostatic Classifier and SMPS Spectrometer Model 3938
Table A-2
SMPS Specifications
Data Averaging (Scans per Sample)
1 to 100, user selectable
Sheath flow ....................................
2 to 30 L/min ±2% of reading
Aerosol flow ....................................
When measured with inlet impactor:
0.2 to 0.8 L/min with 0.0457 cm nozzle
0.3 to 1.0 L/min with 0.0508 cm nozzle
0.6 to 2.1 L/min with 0.0710 cm nozzle
Otherwise: determined by external pressure
or vacuum.
Aerosol temperature range
Storage temperature range
Aerosol inlet temperature range
70 to 125 kPa [0.70 to 1.25 atm)
Aerosol Neutralizer Options
Aerosol Neutralizer Model 3077 .....
Bipolar, Kr-85, 74 MBq (2 mCi), half-life of
10.7 years, lead shielding available
Aerosol Neutralizer Model 3077A ...
Bipolar, Kr-85, 370 MBq (10 mCi), half-life
of 10.7 years, lead shielding available
Advanced Aerosol Neutralizer
Model 3088 ....................................
Bipolar, soft x-ray, E < 9.5 keV, x-ray
source life before exchange 8760 operating
hours
6005931 .........................................
Lead shielding column for 3077/3077A
RS-232, USB, and Ethernet to PC for status and control
3772 CPC .......................................
3775/6 CPC ....................................
3787/8 WCPC ................................
3082 ...............................................
Dimensions (H/W/D/Weight)
3081A .............................................
3085A .............................................
3082 ...............................................
3772 ...............................................
3775/6 ............................................
3787/8 ............................................