TA Instruments TGA 2950 Manuals

Manuals and User Guides for TA Instruments TGA 2950. We have 1 TA Instruments TGA 2950 manual available for free PDF download: Operator's Manual

TA Instruments TGA 2950 Operator's Manual

TA Instruments TGA 2950 Operator's Manual (264 pages)

Thermogravimetric Analyzer

Brand: TA Instruments | Category: Measuring Instruments | Size: 2.88 MB

Table of Contents

Table of Contents
3
Notes, Cautions, and Warnings
13
Safety
15
Using this Manual
18
CHAPTER 1: Introducing the TGA 2950

22
- Introduction
  23
- Components
  24
- The 2950 Instrument
  25
- 2950 Display
  25
- 2950 Keypad
  26
- HEATER Switch
  30
- POWER Switch
  30
- Accessories
  31
- Gas Switching Accessory
  31
- Other Accessories
  31
- Specifications
  32
CHAPTER 2: Installing the TGA 2950

35
- Unpacking/Repacking the 2950
  37
- Unpacking the 2950
  37
- Repacking the 2950
  40
- Installing the Instrument
  41
- Inspecting the System
  42
- Choosing a Location
  43
- Filling the Heat Exchanger
  44
- Connecting Cables and Gas Lines
  46
- Heat Exchanger Cable and Water Lines
  46
- GPIB Cable
  49
- Purge Lines
  51
- Cooling Gas Line
  52
- Power Cable
  53
- Unpacking the Balance
  54
- Installing the Hang-Down Wires
  56
- Aligning the Sample Hang-Down Wire
  59
- Adjusting the Sample Platform
  63
- Starting the 2950
  64
- Shutting down the 2950
  66
CHAPTER 3: Running Experiments

67
- Overview
  69
- Before You Begin
  69
- Calibrating the TGA
  71
- Temperature Calibration
  71
- Weight Calibration
  72
- Sample Platform Calibration
  72
- Running a TGA Experiment
  73
- Experimental Procedure
  73
- Preparing Samples
  74
- Selecting Sample and Tare Pans
  74
- Taring the Sample Pan
  75
- Automatic Tare
  76
- Manual Tare
  76
- Loading the Sample
  77
- Setting up an Experiment
  80
- Setting up Accessories
  81
- Using the Air Cool Option
  82
- Using a Purge Gas
  82
- Using the Gas Switching Accessory
  85
- Starting an Experiment
  86
- Stopping an Experiment
  87
- Unloading the Sample
  87
- Use in an Oxygen-Free Atmosphere
  88
- Purge Gas System
  88
- Instrument Set-Up
  89
CHAPTER 4: Technical Reference

91
- Description of the TGA 2950
  93
- Components
  95
- Balance
  96
- Sample Loading Assembly
  98
- Furnace
  99
- TGA Standard Furnace
  99
- EGA Furnace
  101
- Cabinet
  103
- Heat Exchanger
  105
- Theory of Operation
  106
- Status Codes
  107
CHAPTER 5: Maintenance and Diagnostics

113
- Overview
  115
- Routine Maintenance
  116
- Inspection
  116
- Cleaning the Instrument
  116
- Cleaning the Furnace Housing
  117
- TGA Standard Furnace Only
  117
- Heat Exchanger
  118
- Maintaining Heat Exchanger Coolant
  118
- Draining and Refilling the Water Reservoir
  118
- Replacing the Thermocouple
  121
- Removing and Reinstalling the Furnace
  123
- Furnace Removal
  123
- Furnace Replacement
  126
- Diagnosing Power Problems
  128
- Fuses
  128
- Power Failures
  130
- The Confidence Test
  131
- Replacement Parts
  133
Appendix A: Ordering Information

137
Appendix B: High Resolution TGA Option

139
- Overview
  143
- Option Installation
  144
- Using Hi-Res TM TGA
  145
- Background
  145
- The TA Instruments Hi-Res
  146
- Technique
  146
- The Hi-Res TM Ramp Segment
  147
- Calcium Oxalate Example Scans
  151
- Advanced Hi-Res TM Techniques
  156
- What Can be Resolved and What Cannot
  156
- Selecting a Hi-Res TM Technique
  160
- Dynamic Rate Hi-Res
  160
- TM Ramp
  160
- Constant Reaction Rate Hi-Res TM Ramp
  161
- Weight Gain Experiments
  164
- Signature Analysis
  165
- Sample Quantity and Orientation
  166
- Exposed Surface Area
  166
- Bubble Formation
  167
- Thermocouple Placement
  170
- Data Analysis Effects
  170
- Derivative Plots
  171
- Adjusting Heating Rate
  172
- Adjusting Resolution Setting
  175
- Useful Resolutions Settings
  177
- Temperature Calibration
  179
- Hi-Res TM Transition Temperatures
  180
- Hi-Res TM Sensitivity Segment
  181
- Understanding Sensitivity Setting
  182
- Adjusting Sensitivity in Dynamic Rate Mode
  183
- Adjusting Sensitivity in Constant Reaction Rate Mode
  185
- Abort Segment
  189
- Stepwise Isothermal Heating
  191
- Hi-Res TM TGA Examples
  196
- Mixture of Bicarbonates
  196
- Dynamic Rate Scans
  197
- Varying Resolution Setting
  199
- Varying Sensitivity Setting
  200
- Constant Reaction Rate Scans
  201
- Stepwise Isothermal Scans
  203
- Monosodium Glutamate
  206
- Banana Taffy
  207
- Plastic Laboratory Tubing
  209
- References
  213
APPENDIX C: TGA 2950 Autosampler Option

215
- Introducing the Auto TGA
  217
- Getting Started
  219
- The TGA 2950 Instrument
  220
- Calibrating the Auto TGA
  224
- Running Experiments
  225
- Preparing the Samples
  226
- Selecting Sample
  226
- And Tare Pans
  226
- Taring the Sample Pans
  227
- Loading the Samples
  230
- Setting up an Experiment
  232
- Manual Operation
  233
- Tracking the TGA Autosampler Status
  233
- Interrupting a Run
  234
Appendix D: TGA 2950 EGA Furnace Option

235
- Introducing the EGA Furnace
  237
- EGA Furnace Specifications
  239
- Installing the EGA Furnace
  240
- First-Time Installation
  240
- Removing and Reinstalling the EGA Furnace
  248
- EGA Furnae Removal
  248
- EGA Furnace Installation
  250
- Connecting the Spectrometer
  252
- Using the EGA Furnace
  255
- Cleaning the Quartz Furnace Tube
  256
- Index
  259

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