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SMPS 3938
TSI Instruments SMPS 3938 User Manual
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Maintenance
,
Service, and Troubleshooting
6-
15
Cleaning the N
ano
DMA or 1nm-DMA Electrodes
During cleaning procedures, refer t
o Figure 6-2 below.
Figure 6-2
1nm
-DMA and Nano DMA: Cleaning Electrodes (shown with 3085 base plate)
156
158
Table of Contents
Default Chapter
13
Table of Contents
13
Organization
19
Purpose
19
Related Product Literature
20
Submitting Comments
20
Electrostatic Classifier Model 3082 with Long DMA
22
CHAPTER 1 Product Overview
23
How It Works
23
Impactor
24
Electrostatic Classifier Schematic
24
Sheath Flow
25
Neutralizer
25
Differential Mobility Analyzer (DMA)
26
Cross Section of Model 3081A Long DMA
27
Cross Section of Model 3085A Nano DMA
28
Bypass Flow
29
DMA High Voltage Controller
30
Particle Counter/Detector
30
Model 3082 Electrostatic Classifier with Nano DMA and CPC
30
Flow Equalizer Assembly
31
CHAPTER 2 Unpacking and Setting up the Electrostatic Classifier
33
Packing List
33
Electrostatic Classifier Packing List
33
3082 Accessory Kit
34
1035990 SMPS Spectrometer Accessory Kit
34
3081U Long DMA Upgrade Kit
34
Model 3081A Long DMA Accessory Kit
35
3085U Nano DMA Upgrade Kit
35
Model 3085A Nano DMA Accessory Kit
35
Model 3086 1Nm-DMA Accessory Kit
35
Unpacking
36
Ventilation Requirements
36
Optional Accessories and Replacement Parts
36
Setting up the Instrument
37
Installing Lead Shielding
38
Installing the Model 3077/3077A Neutralizer
42
Installing the Model 3088 Neutralizer
45
Installing an Impactor
47
Flow Ranges for Impactor Bodies
47
Upgrading a Nano DMA
49
Upgrading a Long DMA
52
Installing a DMA
56
Alternative Installation of the 1Nm-DMA
62
Using Nano DMA or 1Nm-DMA Bypass Flow
64
Connecting the DMA to the High Voltage Port
65
Installing the Flow Equalizer Assembly
65
Upgrading Detector Firmware
67
Connecting the Classifier to the Detector
67
Installing Aerosol Instrument Manager Software
68
Connecting the Classifier to the Computer
68
Powering on the Classifier
70
CHAPTER 3 Moving and Shipping the Electrostatic Classifier
72
Preparing for Shipping
72
Electrostatic Classifier Front Panel
78
CHAPTER 4 Instrument Description
79
Back Panel
79
Electrostatic Classifier Back Panel
79
Side Panel
80
Electrostatic Classifier Side Panel
80
Internal Instrument Components
81
Electrostatic Classifier Internal Components (Viewed from Side)
81
Main Components
82
Aerosol Inlet/Impactor
82
Electrostatic Classifier Internal Components (Viewed from Above)
82
Inlet Manifold
83
Neutralizer Housing
83
Flag Assembly
83
Flow Range for each Impactor Orifice
83
Sheath Flow Loop
84
Circuit Boards
84
High-Voltage Power Supply
85
DMA Lower Bracket
85
Communication Ports
85
Electrostatic Classifier Back Panel Communication Ports
86
Wetted Materials
88
CHAPTER 5 Instrument Operation
89
Operating Precautions
89
Operating the Electrostatic Classifier
90
Title Bar
91
Electrostatic Classifier Status Icons
92
Electrostatic Classifier Error Screen
93
Electrostatic Classifier Error Messages
94
Operating in Classifier Mode
95
Setting Sheath Flow
96
Setting Particle Diameter
96
Setting DMA Voltage
97
Operating in SMPS Mode
98
Title Bar
99
Properties Shortcut Button
99
Specifying Graph Options
99
X-Axis Settings
100
Y-Axis Settings
102
Scan Statistics Pane
104
Viewing Settings
105
Using the Setup Screen
106
Electrostatic Classifier Setup Screen
106
Electrostatic Classifier Setup Screen Options
106
Viewing and Setting Properties
107
Electrostatic Classifier Properties Tabs
107
Electrostatic Classifier Properties Screen-Hardware Tab
112
Electrostatic Classifier Properties Screen-Tube Length
113
Electrostatic Classifier Properties Screen - Gas Tab
114
Viewing and Setting Device Options
115
Electrostatic Classifier Gas Reference Screen
115
Electrostatic Classifier Device Options Screen
115
Electrostatic Classifier Display Screen
117
Electrostatic Classifier Information Screen
118
Electrostatic Classifier Diagnostics Screen
119
Electrostatic Classifier Diagnostic Screen
119
Electrostatic Classifier Communications Screen
120
Logging Data
121
Electrostatic Classifier Logging Options Screen
122
Inverted Data Vs. Raw Data
123
Sample Inverted Data Export File
123
A Sample Raw Data Export File
124
Inverted Data Vs. Raw Data Comparison
124
Exporting Data
125
Electrostatic Classifier Data Export Screen
125
Approximate Data Transfer Times
126
Performing Calibrations
127
Electrostatic Classifier Calibration Screen
127
Electrostatic Classifier User Calibration Screen-Sheath Flow Tab
128
Electrostatic Classifier User Calibration Screen-Sheath Flow Setpoint Button
129
Electrostatic Classifier User Calibration Screen-Sheath Flow Setpoint Values
129
Electrostatic Classifier User Calibration Screen-Calibration Saved to Instrument
130
Electrostatic Classifier User Calibration Screen-Sheath Flow Tab
131
Electrostatic Classifier User Calibration Screen-Reference Field
132
Electrostatic Classifier User Calibration Screen-Dp Tab
133
Electrostatic Classifier User Calibration Screen-Impactor Flow Tab
135
Electrostatic Classifier Calibration out of Range Warning
136
Electrostatic Classifier Restore Factory Defaults
137
Electrostatic Classifier Factory Defaults Restored for Sheath Flow Screen
137
Setting up a Custom DMA
138
Operating in External Control Mode
139
Electrostatic Classifier Display Screen for External Control
139
Auto Recovery Feature
140
Shutting off the Electrostatic Classifier
141
3082R-MAINT Model 3082 Electrostatic Classifier Maintenance Kit
143
CHAPTER 6 Maintenance, Service, and Troubleshooting
144
Recommended Cleaning Solutions
144
Cleaning the Impactor
144
Electrostatic Classifier Maintenance Schedule
144
Replacing Impactor O-Rings
146
Greasing O-Rings
148
Changing the Flag Assembly O-Ring
149
Removing the Cover
150
Replacing the Inline Filters
151
Replacing the Flowmeter
153
Cleaning the DMA Electrodes
155
Long DMA: Cleaning the Electrodes (Shown with 3081 Base Plate)
155
1Nm-DMA and Nano DMA: Cleaning Electrodes (Shown with 3085 Base Plate)
157
Reassembling Base with Grounding Wire
159
Cleaning/Changing the DMA Dacron Screen
160
Cleaning the Long DMA Dacron Screen
160
Cleaning the Nano DMA or 1Nm DMA Dacron Screen (Shown with the 3085 Base Plate)
162
Performing ISO Zero Tests
163
Performing a Leak Check
166
Performing User Recalibrations and Checks
167
Upgrading Firmware
167
Technical Contacts
173
Returning the Electrostatic Classifier for Service
174
SMPS Spectrometer Specifications
177
SMPS Specifications
178
Electrostatic Classifier Specifications
179
APPENDIX A Specifications
180
APPENDIX B Theory of Operation
185
Impaction Theory and Operation
185
Classifier Shown with Impactor Installed on Inlet
185
Cross-Sectional View of an Inertial Impactor [Hinds, 1982
185
Electrostatic Classifier
187
Flow Schematic for the Electrostatic Classifier with Long DMA
188
Flow Schematic for the Electrostatic Classifier with Nano or 1Nm-DMA
189
Charging Theory
190
Bipolar Particle Charge Distribution in Air [Wiedensohler and Fissan, 1988
190
Particle Mobility Theory
193
Collector Rod Voltage as a Function of Particle Diameter for Normal Operating Conditions of the Long DMA [Agarwal and Sem, 1978
196
SMPS Spectrometer Measurement Theory
197
Multiple Charge Correction
199
Diffusion Loss Correction
199
Circular Tube Penetration Efficiency [Gormley and Kennedy (1949
200
Determination of P
201
Location of Flow Paths Contributing to Diffusion Losses
201
Determination of P
202
Equivalent Length Concept
202
Selected References
203
Terminal Communications
207
Firmware Commands
208
APPENDIX C Computer Interface
209
Index
217
Reader's Comments Sheet
223
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TSI Instruments SMPS 3938 Specifications
General
Brand
TSI Instruments
Model
SMPS 3938
Category
Laboratory Equipment
Language
English
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