TSI Instruments 3022A

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Technical Papers C-17

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Table of Contents11
About this Manual17
Purpose17
Organization17
Related Product Literature19
Submitting Comments19
Chapter S21
Introduction21
Product Description21
TSI Model 3022A Condensation Particle Counter21
Features22
Applications22
Unpacking and Setting up23
Packing List23
Unpacking Instructions23
Model 3022A CPC Packing List23
Initial Setup24
Protective Caps24
Checking the Line Voltage Configuration24
Power Entry, Fuse, and Voltage Module25
Orientation of the Voltage Selector Card25
Changing the Fuse26
Changing between European and American-Style Fuses26
European-Fusing Arrangement26
North American-Fusing Arrangement27
Fuse Block/Cover Assembly27
Mounting the Bottle Bracket28
Mounting the Bottle Bracket: (A) Bottle Bracket; (B) Screw28
Filling the Bottle with Fluid29
Changing the Inlet29
Removing the Front Inlet Tube; (A) Pull Inlet Tube out30
Applying Power to the CPC34
Operation and Display35
Front Panel Functions35
CPC Front Panel35
Warmup Mode36
Primary Functions36
Pump36
Display37
Total37
Clear37
Range38
Secondary Functions38
Shift38
Status38
Drain/Fill39
Flow Hi/Lo40
Indicator Lights40
Particle41
Flow41
Auto41
Optics, Condenser, Saturator41
Laser41
Liquid Level41
Back Panel Functions42
Com Port42
Analog Output42
CPC Back Panel42
Mux Output43
Pulse Output43
Liquid Supply43
Makeup Air43
Pump Exhaust43
Liquid Drain44
Operating Specifications and Precautions44
Ambient Temperature44
Inlet Pressure44
High Flow Mode44
Low Flow Mode45
Moving the Counter45
Drying the Counter45
First Method46
Second Method46
Saturator: (A) Front of Counter; (B) End Plate with Four Screws47
Saturator: (A) Front of Counter; (B) Wick; (C) Fill Sensor48
Configuring the CPC49
Enabling the Configuration Mode49
Location of PC Boards and Potentiometers49
Setting the Configuration Switch to Enable the Configuration Mode50
Running the Configuration Function51
Flow Calibration54
Condenser Flow Calibration55
Technical Description57
Theory57
Historical Notes58
Adiabatic Expansion CNC59
Two-Flow Mixing CNC59
Diffusional Thermal CNC59
Design of the CPC60
Sensor61
Drawing of the CPC Sensor62
Microprocessor63
Flow System63
High Flow64
Low Flow64
Flow Schematic of the CPC64
Filters and Restrictors65
Flowmeter65
Pump66
Particle Counting67
Optical Detection67
Single-Particle, Realtime Counting67
Typical Digital Pulse Trace from the Photodetector68
Total Count Accuracy69
Coincidence Correction for Concentrations up to69
Single-Particle, Live-Time Counting70
Photometric Calibration70
Autoranging71
Calibrating the CPC73
Calibration of the Condensation Particle Counter73
Dilution Bridge Used for High-Concentration Particles74
Computer Interface and Commands75
Computer Interface75
Pin Connectors75
Connector Pin Designations75
Baud Rate76
Parity76
Signal Connections for RS-232 Configurations76
Computer Commands77
BASIC Program: TSICPC80
Maintenance and Service91
Changing the Filters91
HEPA Filter91
Tube Filter91
Locating the Filter Plug on the Bottom of the CPC: (A) Power Supply PC Board; (B) Filter Plug; (C) Front Panel92
Replacing the Filter Tube: (A) Filter93
Pump Exhaust Filter (DQ)94
Checking the CPC for Leaks94
Checking for Leaks with a Vacuum95
Installing an EPROM96
Checking for Leaks with Compressed Air96
Model 3022A CPC Screw Locations98
EPROM Location on the Model 3022A CPC Display Board98
Failures99
Technical Contacts100
Returning the CPC for Service101
Applications103
Clean Air103
Using the CPC with a Multiplexer/Processor103
Testing Filter Efficiency104
Using the CPC with a Diffusion Battery104
Differential Mobility Particle Sizer105
CPC, Diffusion, Battery and Switching Valve System for Measuring the Size Distribution of Aerosols below 0.2 Micrometer in Diameter105
Schematic of the DMPS/CPC in the Underpressure Mode106
Appendix E S107

TSI Instruments 3022A - Page 129

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