Contents
xi
Concentration Histogram and Total Concentration
Popup Menus ............................................................................. 5-44
3D Particle Concentration Popup Menu ........................................ 5-47
Status Bar Icons ................................................................................ 5-47
Shortcut Keys .................................................................................... 5-48
CHAPTER 6 General Care, Troubleshooting and Service ................... 6-1
Basic Care of the Engine Exhaust Particle Sizer Spectrometer ......... 6-1
Cleaning the Cyclone .......................................................................... 6-2
Cleaning and Replacing Charger Needles ......................................... 6-3
Cleaning the Negative Charger Needle ........................................... 6-3
Cleaning or Replacing the Positive Charger Needle ....................... 6-9
Cleaning the Charger Column .......................................................... 6-10
Basic Charger Column Cleaning Procedure ................................. 6-11
Detailed Charger Column Cleaning Procedure ............................. 6-14
Replacing the Filter Cartridges ......................................................... 6-21
Manifold Filters ............................................................................... 6-21
Pump Filters ................................................................................... 6-22
Replace the Extraction Pump ........................................................... 6-23
Troubleshooting ................................................................................ 6-24
Baseline Noise ............................................................................... 6-24
Noisy Channels .............................................................................. 6-26
Errors ............................................................................................. 6-29
Technical Contacts ........................................................................... 6-33
Returning the Engine Exhaust Particle Sizer Spectrometer
for Service ...................................................................................... 6-34
APPENDIX A Specifications .................................................................. A-1
APPENDIX B Theory of Operation ........................................................ B-1
Electrical Mobility History ................................................................... B-1
Size Distributions ............................................................................... B-2
Charger ........................................................................................... B-3
Measurement Column .................................................................... B-3
Flow Path ........................................................................................ B-4
Data Inversion ................................................................................. B-4
Concentration Limits ....................................................................... B-4
Selected References .......................................................................... B-6
APPENDIX C Particle Size Statistics .................................................... C-1
APPENDIX D Serial Commands ............................................................ D-1
Pin Connectors .................................................................................. D-1
Serial Protocol .................................................................................... D-2
Serial Commands .............................................................................. D-2
Command Summary .......................................................................... D-5
READ Commands .......................................................................... D-5
SET Commands .............................................................................. D-6
HELP Commands ........................................................................... D-6
Detailed Command Description ......................................................... D-7
READ Commands .......................................................................... D-7
SET Commands ............................................................................ D-12
