Contents xi
Cleaning the Nano DMA Dacron Screen ............................................ 6-9
Cleaning Kr-85 Bipolar Charger/Neutralizer ..................................... 6-11
Replacing the Filter Cartridges ......................................................... 6-12
Flowmeters ........................................................................................ 6-14
Replacing the EPROM ...................................................................... 6-14
Replace Negative High-Voltage Controller with Positive
High-Voltage Controller ................................................................. 6-17
Technical Contacts ............................................................................ 6-21
Returning the Classifier for Service .................................................. 6-21
CHAPTER 7 Troubleshooting ................................................................. 7-1
Detecting Particles When the Collector-Rod Voltage is Not
Switched on ..................................................................................... 7-1
Testing for Leaks ................................................................................. 7-1
Isolating Leaks .................................................................................... 7-3
APPENDIX A Model 3080 Specifications .............................................. A-1
APPENDIX B Theory of Operation ........................................................ B-1
History ................................................................................................ B-1
Impaction Theory and Operation ....................................................... B-2
Electrostatic Classifier ........................................................................ B-4
Charging Theory ................................................................................ B-8
Particle Mobility Theory .................................................................... B-12
Selected References ........................................................................ B-15
APPENDIX C Using Serial Data Commands ........................................ C-1
Making Connection ............................................................................ C-1
Pin Connectors ................................................................................... C-1
Baud Rate .......................................................................................... C-3
Parity (7-Bits Even) ............................................................................ C-3
Commands ......................................................................................... C-3
Command Quick Reference ........................................................... C-4
Troubleshooting Input ..................................................................... C-5
Definitions of Read Commands ...................................................... C-5
Definitions of Combined Set Commands ........................................ C-7
APPENDIX D Classifier Calibration ...................................................... D-1
Calibration Software Setup ................................................................ D-1
Using the Calibration Software .......................................................... D-3
Sheath-Air Calibration ........................................................................ D-5
Bypass-Air Calibration ........................................................................ D-7
Impactor Calibration ........................................................................... D-8
Working with Calibration Files .......................................................... D-10
Index
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