Contents
xiii
Greasing O-rings ............................................................................. 6-6
Changing the Flag Assembly O-ring ................................................ 6-7
Removing the Cover ........................................................................ 6-8
Replacing the Inline Filters .............................................................. 6-9
Replacing the Flowmeter ............................................................... 6-11
Cleaning the DMA Electrodes........................................................ 6-13
Cleaning/Changing the DMA Dacron Screen ................................ 6-18
Performing ISO Zero Tests ............................................................ 6-21
Performing a Leak Check .............................................................. 6-24
Performing User Recalibrations and Checks ................................. 6-25
Upgrading Firmware ...................................................................... 6-25
Troubleshooting ................................................................................ 6-26
Technical Contacts ........................................................................... 6-31
Returning the Electrostatic Classifier for Service .............................. 6-32
APPENDIX A Specifications .................................................................. A-1
APPENDIX B Theory of Operation ........................................................ B-1
History ................................................................................................ B-1
Impaction Theory and Operation ....................................................... B-3
Electrostatic Classifier ........................................................................ B-5
Charging Theory ................................................................................ B-8
Particle Mobility Theory .................................................................... B-11
SMPS Spectrometer Measurement Theory ..................................... B-15
Multiple Charge Correction .............................................................. B-17
Diffusion Loss Correction ................................................................. B-17
Determination of P
1
....................................................................... B-19
Determination of P
2
....................................................................... B-19
Determination of P
3
....................................................................... B-20
Determination of P
4
....................................................................... B-20
Determination of P
5
....................................................................... B-20
Equivalent Length Concept ........................................................... B-20
Selected References ........................................................................ B-21
APPENDIX C Computer Interface ......................................................... C-1
Terminal Communications ................................................................. C-1
Firmware Commands ......................................................................... C-2
Index
Reader’s Comments Sheet
F i g u r e s
1-1 Electrostatic Classifier Model 3082 with Long DMA ........................ 1-2
1-2 Electrostatic Classifier Schematic ................................................... 1-4
1-3 Cross Section of Model 3081A Long DMA ...................................... 1-7
1-4 Cross Section of Model 3085A Nano DMA ..................................... 1-8
1-5 Model 3082 Electrostatic Classifier with Nano DMA and CPC ...... 1-10
1-6 Flow Equalizer Assembly ............................................................... 1-11
4-1 Electrostatic Classifier Front Panel .................................................. 4-2
4-2 Electrostatic Classifier Back Panel .................................................. 4-3
Содержание 3082
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