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Teledyne 3000TA-XL-EU, Trace Oxygen Analyzer 2-5, 2.3 Sample System

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2-5

Trace Oxygen Analyzer Operational Theory 2

Teledyne Analytical Instruments

Figure 2-3. Characteristic Input/Output Curve for a Micro-Fuel Cell

2.3 Sample System

The sample system delivers gases to the Micro-Fuel Cell sensor from

the analyzer rear panel inlet. Depending on the mode of operation either

sample or calibration gas is delivered.

The Model 3000TA-XL sample system is designed and fabricated to

ensure that the oxygen concentration of the gas is not altered as it travels

through the sample system.

The sample system for the standard instrument incorporates VCR tube

fittings for sample inlet and 1/4"outlet tube connections at the rear panel.

The sample or calibration gas that flows through the system is monitored by

a flowmeter downstream from the cell. Figure 2-4 shows the piping layout

and flow diagram for the standard model.

Contents

Main i Trace Oxygen Analyzer OPERATING INSTRUCTIONS FOR Model 3000TA-XL-EU Trace Oxygen Analyzer DANGER ii Model 3000TA-XL-EU Copyright 1999 Teledyne Analytical Instruments Page iv v vi Page viii COMBUSTIBLE GAS USAGE WARNING DANGER 1-1 Introduction 1.1 Overview 1.2 Typical Applications 1.3 Main Features of the Analyzer 1-2 1.4 Model Designations 1-3 1.5 Front Panel (Operator Interface) 1-4 1-5 1.6 Rear Panel (Equipment Interface) 1-6 2-1 Operational Theory 2.1 Introduction 2.2 Micro-Fuel Cell Sensor 2-2 2-3 2-4 2-5 2.3 Sample System 2-6 TOP RIGHT SI D E 2-7 2-8 2.4 Electronics and Signal Processing Page 2-10 3-1 Installation 3.1 Unpacking the Analyzer 3.2 Mounting the Analyzer 3-2 3.3 Rear Panel Connections 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3.4 Installing the Micro-Fuel Cell 3.5 Testing the System 3-12 4-1 Operation 4.1 Introduction 4-2 4.2 Using the Data Entry and Function Buttons 4-3 4.3 The System Function 4-4 4-5 4-6 4-7 4-8 4-9 4-10 4-11 4.4 Calibration of the Analyzer 4-12 4-13 4-14 4-15 4-16 4.4.3 Span Failure 4.5 Switching of Sample Streams 4-17 4.6 The Alarms Function 4-18 4-19 4.7 The Range Function 4-20 4-21 4.8 The Analyze Function 4.9 Signal Output 4-22 5-1 Maintenance 5.1 Routine Maintenance 5.2 Cell Replacement 5-2 5-3 5-4 5-5 5.3 Fuse Replacement 5-6 5.4 System Self Diagnostic Test 5.5 Major Internal Components Page 5-8 5.7 Troubleshooting Problem: Problem: A-1 Appendix A-1 Specifications A-2 A-3 A-2 Recommended 2-Year Spare Parts List Page A-5 3000XL SERIES ANALYZERS Page Page A-8 A-6 Material Safety Data Sheet Section III Physical/Chemical Characteristics Section I Product Identification Section II Hazardous Ingredients/Composition A-9 Trace Oxygen Analyzer Appendix Section VI Health Hazard Data Section IV Fire and Explosion Hazard Data Section V Reactivity Data A-10 Section VII Precautions for Safe Handling and Use Protective measures during cell replacement: A-11 Trace Oxygen Analyzer Appendix Section VIII Control Measures Section IX Disposal Section X References A-12 A7 - Installling and Replacing a new Insta-Trace Micro-fuel Cell Read completely before beginning the procedure