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TA Instruments TGA 2950 - User Manual

TA Instruments TGA 2950
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TA I
NSTRUMENTS
TGA 2950 i
Thermal Analysis & Rheology
TGA 2950
Thermogravimetric Analyzer
Operator’s Manual
PN 925602.001 Rev. D (Text and Binder)
PN 925602.002 Rev. D (Text Only)
Issued July 2000

Table of Contents

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TA Instruments TGA 2950 Specifications

General IconGeneral
BrandTA Instruments
ModelTGA 2950
CategoryMeasuring Instruments
LanguageEnglish

Summary

Hotlines and Contact Information

TA Instruments Contact Information

Provides contact numbers for technical assistance, orders, and service for TA Instruments.

Safety Precautions

Electrical Safety

Addresses high voltage hazards and precautions for electrical procedures.

Chemical Safety

Discusses safe use of gases and handling of potentially hazardous chemicals.

Furnace Insulation and Handling

Information on RCF insulation in furnace assemblies and handling procedures.

Furnace Cleaning and Ventilation

Need for furnace cleaning and venting harmful gases.

Thermal Safety

Advises on cooling down the furnace and avoiding contact with hot surfaces.

Mechanical Safety

Warns about keeping fingers away from the moving furnace.

Using This Manual Guide

Manual Structure Overview

Explains the content and structure of each chapter and appendix.

Chapter 1: Instrument Introduction

Introduces the TGA 2950, its accessories, and specifications.

Chapter 2: Installation Guide

Covers unpacking, installation, and connecting the TGA to the system.

Chapter 3: Running Experiments

Details how to run TGA experiments and set up accessories.

Chapter 4: Technical Reference

Provides technical information and principles of TGA operation.

Chapter 5: Maintenance and Diagnostics

Explains maintenance, diagnostics, and troubleshooting procedures.

Appendix A: Ordering Information

Lists TA Instruments offices for ordering and support.

Appendix B: High Resolution Option

Describes the High Resolution option, including installation and usage.

Appendix C: Autosampler Option

Provides instructions for operating the TGA Autosampler option.

Appendix D: EGA Furnace Option

Details installing and using the EGA furnace with the TGA 2950.

Introduction to the TGA 2950

Introduction to the TGA 2950

Overview of the TGA 2950 as a thermal analysis system.

Instrument Components

Lists the five major components of the TGA 2950 instrument.

2950 Display and Keypad

Details operator controls: instrument display and keypad.

Instrument Switches

Explains the HEATER and POWER switches for instrument operation.

Available Accessories

Describes available accessories like Gas Switching and EGA Furnace.

Technical Specifications

Presents the technical specifications for the TGA 2950.

Installing the TGA 2950

Unpacking and Repacking

Instructions for unpacking and repackaging the TGA instrument.

System Inspection and Setup

Inspecting the system for damage and preparing for installation.

Location Selection

Guidelines for selecting an appropriate location for the instrument.

Heat Exchanger Setup

Details the process of filling the heat exchanger with coolant.

Cable and Line Connections

Instructions for connecting various cables and gas lines.

Balance Installation

Steps for safely unpacking and installing the instrument's balance component.

Hang-Down Wire Installation

Guide for installing the hang-down wires for sample and tare pans.

Sample Platform Adjustment

Instructions for adjusting the sample platform for proper operation.

Instrument Startup and Shutdown

Steps to start and safely shut down the TGA 2950 instrument.

Running Experiments

Experiment Overview and Preparation

General outline and prerequisites for TGA experiments.

TGA Calibration Procedures

Explains the need and types of calibration for accurate results.

Experiment Execution Steps

Outlines the general steps for conducting a TGA experiment.

Sample Preparation and Loading

Details sample preparation, pan selection, and loading.

Automatic and Manual Tare

Describes automated and manual processes for taring the sample pan.

Accessory Setup and Usage

Instructions on using accessories like Air Cool, Purge Gas, and Gas Switching.

Experiment Control

Steps to start, force start, stop, and unload samples.

Oxygen-Free Atmosphere Operation

Precautions and setup for running experiments in an oxygen-free environment.

Technical Reference

TGA 2950 Instrument Description

Provides a detailed description of the TGA 2950 instrument.

Instrument Components

Describes the Balance, Sample Loading Assembly, Furnace, Cabinet, and Heat Exchanger.

Theory of Operation

Explains the fundamental principles behind TGA operation.

Status Codes Reference

Lists and explains the status codes displayed by the instrument.

Maintenance and Diagnostics

Maintenance Overview

Introduces the maintenance and diagnostic procedures covered.

Routine Maintenance Tasks

Outlines regular maintenance tasks for the instrument.

Furnace Maintenance

Instructions for cleaning the furnace housing and standard furnace.

Heat Exchanger Maintenance

Procedures for maintaining coolant and refilling the water reservoir.

Component Replacement

Procedures for replacing the thermocouple and furnace.

Power Problem Diagnosis

Guidance on troubleshooting power-related issues including fuses and failures.

Test Functions and Confidence Test

Describes instrument test functions and the confidence test.

Replacement Parts List

Lists available replacement parts for the TGA 2950.

Ordering Information

TA Instruments Contact Information

Provides contact details for TA Instruments offices globally.

High Resolution TGA Option

Hi-Res TGA Overview and Installation

Describes benefits, installation, and background of the Hi-Res TGA option.

Hi-Res Techniques and Applications

Details Hi-Res techniques, ramp segments, and examples.

Parameter Adjustment and Best Practices

Discusses sample quantity, surface area, bubble formation, and thermocouple placement.

Data Analysis and Plotting

How Hi-Res TGA affects data analysis, derivative plots, and smoothing.

Optimizing Hi-Res Performance

Guides on adjusting heating rate, resolution, and sensitivity settings.

Method Programming Features

Details on using abort segments and stepwise isothermal heating.

Hi-Res TGA Examples and References

Presents example scans for various materials and lists references.

TGA 2950 Autosampler Option

Auto TGA Introduction and Setup

Introduction to the Auto TGA accessory and basic setup.

Sample Preparation and Taring

Steps for preparing samples and taring pans for the autosampler.

Automatic Sample Handling

Procedures for automatic taring and loading of samples.

Experiment Setup and Operation

Guide to setting up experiments, manual operation, and tracking status.

Run Interruption

Options for stopping an Auto TGA run in progress.

TGA 2950 EGA Furnace Option

EGA Furnace Introduction and Specifications

Introduction and specifications for the Evolved Gas Analysis (EGA) Furnace.

EGA Furnace Installation and Removal

Covers installation, first-time setup, and removal procedures for the EGA furnace.

Spectrometer Connection

Instructions for connecting a spectrometer to the EGA furnace for gas analysis.

EGA Furnace Usage and Cleaning

Guidance on using and cleaning the EGA furnace and its quartz tube.

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