iv 
Log Mode (1–5) ...................................................................................... 38
Locking Feature ......................................................................................... 39
Taking Mass Concentration Measurements ............................................... 41
Screen Regions ...................................................................................... 42
Stats ....................................................................................................... 43
Graphing ................................................................................................ 43
Viewing Data .............................................................................................. 45
Title Bar ..................................................................................................... 46
CHAPTER 4   MAINTENANCE ..................................................................... 47
Maintenance Schedule .............................................................................. 47
Zeroing Instrument ..................................................................................... 48
Cleaning the Inlet ....................................................................................... 48
Cleaning and Oiling Impactors ................................................................... 49
Replacing the Internal Filters ..................................................................... 50
Replacing the Filters in the External Pump Module ................................... 54
Storage Precautions .................................................................................. 54
CHAPTER 5   TROUBLESHOOTING ........................................................... 55
APPENDIX A    SPECIFICATIONS .............................................................. 61
APPENDIX B    ZERO MODULE .................................................................. 63
INDEX ........................................................................................................... 65
These Application Notes can also be found on TSI’s web site: 
http://www.tsi.com 
EXPMN-001 DustTrak II Theory of Operation.pdf 
EXPMN-003 DustTrak II Impactor.pdf