TSI Instruments 3080 Series

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Theory of Operation B–9

Figure B-6

Bipolar Particle Charge Distribution in Air [Wiedensohler and Fissan, 1988]

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Table of Contents11
Location of Warning and Information Labels16
Model 3080 Electrostatic Classifier Shown with Model 3081 Long DMA and Model 3085 Nano DMA21
Classifier Packing List25
Bottom View of Electrostatic Classifier Showing Location of Rubber Feet. Feet Can be Removed to Provide Mounting Points on Cabinet. Dimensions Are in Inches [MM]27
Installation of Model 3077A/3077 Kr-85 Neutralizer29
Model 3077A/3077 Kr-85 Neutralizer Installed (Showing Pop-Up-Flag Indicator)30
Impactor Inlet31
Typical Flow Range for each Impactor Nozzle31
Impactor Inlet Installed on Classifier32
Installing Long DMA in Mounting Bracket. Push down and Toward Cabinet until Spring Locks in Place34
Releasing the Long DMA Base Bracket34
Installing the Long DMA Side-Support Bracket35
Tubing Configuration for the Model 3081 Long DMA36
Tubing Connections for Model 3081 Long DMA36
Installing Nano DMA in Mounting Bracket. Push down and Toward Cabinet until Spring Locks in Place37
Releasing the Nano DMA Base Bracket38
Tubing Configuration for the Model 3085 Nano DMA in Single Blower Mode39
Tubing Connections for Model 3085 Nano DMA in Single Blower Mode39
Tubing Configuration for the Model 3085 Nano DMA in Dual Blower Mode40
Tubing Connections for Model 3085 Nano DMA in Dual Blower Mode41
Front of the Model 3080 Electrostatic Classifier43
Classifier LCD Display44
Back Panel and Side Panel of the Model 3080 Electrostatic Classifier46
24V DC Power Input Pin Designations46
Main Internal Components49
Schematic Diagram of the Classifier50
Model 3081 Long Differential Mobility Analyzer54
Schematic Diagram of Long DMA55
3085 Nano Differential Mobility Analyzer56
Schematic Diagram of the Model 3085 Nano DMA57
Control Knob Functions59
Classifier LCD Display60
Classifier Menu Structure Quick Reference63
Flow Range for each Impactor Nozzle65
Maintenance Schedule69
Cleaning the Impactor70
Unscrew Middle Flange to Split Long DMA for Cleaning71
Cleaning/Replacing Model 3081 Dacron Screen74
Disassembly of Model 3085 Nano DMA for Cleaning75
Cleaning the Nano DMA Dacron Screen77
Location of Ground Wire77
Replacing/Cleaning the Dacron Screen78
Cleaning Kr-85 Bipolar Charger/Neutralizer79
Replacing the Filter Cartridges80
Removal of Model 3077A/3077 Kr-85 Neutralizer80
Replacing Classifier Filters81
Flowmeters82
Replacing the EPROM82
Location of Main PC-Board83
Location of the EPROM on the Main PC-Board84
Replace Negative High-Voltage Controller with Positive High-Voltage Controller85
Location of High-Voltage Controller in 3080 Electrostatic Classifier85
Positive High-Voltage Controller86
Removing High-Voltage Controller87
Electrical Board after High-Voltage Controller Is Removed87
Optional Positive High-Voltage Controller Installed88
Technical Contacts89
Returning the Classifier for Service89
Detecting Particles When the Collector-Rod Voltage Is Not Switched on91
Testing for Leaks91
Isolating Leaks93
Specifications of the 3080 Controller Platform95
Specifications of the 3080L Electrostatic Classifier96
APPENDIX A Model 3080 Specifications97
Specifications of the 3080N Electrostatic Classifier97
History99
Impaction Theory and Operation100
Classifier Shown with Impactor Installed on Inlet101
Cross-Sectional View of an Inertial Impactor [Hinds, 1982101
Electrostatic Classifier102
Flow Schematic for the Electrostatic Classifier with Long DMA104
Flow Schematic for the Electrostatic Classifier with Nano DMA in Single Blower Mode105
Charging Theory106
Flow Schematic for the Electrostatic Classifier with Nano DMA in Dual Blower Mode106
Bipolar Particle Charge Distribution in Air [Wiedensohler and Fissan, 1988107
Midpoint Mobilities, Midpoint Particle Diameters, and Fraction of Total Particle Concentration that Carries -6 to +6 Elementary Charges as a Function of Mobility108
Coefficients for Equation109
Particle Mobility Theory110
Collector Rod Voltage as a Function of Particle Diameter for Normal Operating Conditions of the Long DMA [Agarwal and Sem, 1978112
Selected References113
Serial Port Connector on the Back of the Classifier117
Serial Port Pin Designations118
Signal Connections for RS-232 Configurations118
APPENDIX C Using Serial Data Commands119
Baud Rate119
Parity (7-Bits Even119
Commands119
Command Quick Reference120
Troubleshooting Input121
Definitions of Read Commands121
Troubleshooting Serial Commands121
Definitions of Combined Set Commands123
Calibration Software Setup129
Electrostatic Classifier Calibration Software Startup Screen130
Connection Error130
Using the Calibration Software131
Communications Settings for Serial Port131
Status Settings132
Sheath-Air Calibration133
Setup Tab133
Bypass-Air Calibration135
Sheath Flow Calibration135
Impactor Calibration136
Bypass Flow Calibration Tab136
Impactor Calibration Tab137
Working with Calibration Files138

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