Teledyne BDS-3960 5.3 Fuse Replacement

Oxygen Analyzer Maintenance

Teledyne Analytical Instruments 59

Figure 5.1 Adding Water into the BDS sensor

WARNING: THE SENSOR USED IN THE MODEL BDS 3960

OXYGEN ANALYZER USES ELECTROLYTE WHICH

CONTAINS POTASSIUM HYDROXIDE, THAT CAN BE

HARMFUL IF TOUCHED, SWALLOWED, OR

INHALED. AVOID CONTACT WITH ANY FLUID OR

POWDER IN OR AROUND THE UNIT. WHAT MAY

APPEAR TO BE PLAIN WATER COULD BE THE

ELECTROLYTE. IN CASE OF EYE CONTACT,

IMMEDIATELY FLUSH EYES WITH WATER FOR AT

LEAST 15 MINUTES. CALL PHYSICIAN. (SEE

APPENDIX, MATERIAL SAFETY DATA SHEET.)

5.3 Fuse Replacement

1. Place small screwdriver in notch, and pry cover off, as shown in

Figure 5-2. Remove fuse holder.

2. Replace fuses. Use 2A 250 VAC 5x20 mm slow-blow. Install

one at each side of fuse holder

Contents

Main BDS 3960 Teledyne Analytical Instruments ii Copyright 2002 Teledyne Analytical Instruments Specific Model Information Safety Messages Page Table of Contents Page Page List of Figures Page List of Tables DANGER COMBUSTIBLE GAS USAGE WARNING Introduction 1.1 Overview 1.2 Typical Applications 1.3 Main Features of the Analyzer 1.4 Front Panel (Operator Interface) Page 1.5 Rear Panel (Equipment Interface) Page Operational Theory 2.1 Introduction 2.2 BDS Sensor 2.2.1 Principles of Operation Page Page 2.2.2 Gas Flow Rate 2.2.3 Gas Pressure 2.2.4 Temperature effect 2.2.5 Recovery from High Level Oxygen Exposure 2.2.6 Background Gas Compatibility 2.2.7 Stability 2.2.8 Maintenance 2.3 Sample System 2.4 Electronics and Signal Processing Page Page Page Installation 3.1 Unpacking the Analyzer 3.2 Mounting the Analyzer Page 3.3 Rear Panel Connections 3.3.1 Gas Connections 3.3.2 Electrical Connections 3.3.2.1 PRIMARY INPUT POWER 3.3.2.2 50-PIN EQUIPMENT INTERFACE CONNECTOR Page Page Page Page 3.4 Electrolyte Refill of BDS Sensor 3.5 Testing the System 3.6 Powering Up the System Operation 4.1 Introduction 4.2 The Analyzer application 4.3 The System Screen 4.3.1 Communication Information and Calibration Parameters 4.3.2 Setting Software Parameters: Filter, Gas Factor, Tmp. Coeff. 4.3.2.1 THE DIGITAL FILTER 4.3.2.2 The Gas Factor 4.3.2.3 T EMPERATURE C 4.3.2.4 S ET D 4.4 Calibration of the Analyzer 4.4.1 Zero Cal 4.4.1.1 Z ERO F 4.4.2 Span Cal 4.4.2.1 S PAN F 4.5 The Alarms Function Page 4.6 The Range Function 4.6.1 Setting the Analog Output Ranges Page 4.6.2 Fixed Range Analysis 4.8 Signal Output 4.9 Switching The Program Back To The Front Page Maintenance 5.1 Routine Maintenance 5.2 Adding Water to the BDS Sensor 5.3 Fuse Replacement 5.4 Battery Backup Replacement 5.5 Reinstalling Application software to PPC. 5.5 Major Internal Components 5.6 Cleaning 5.7 Troubleshooting Page Page Page Appendix A-1 Specifications Page A-2 Recommended 2-Year Spare Parts List Page A-5 Application notes Material Safety Data Sheet Teledyne Analytical Instruments 72 Section III -Physical Hazards Section IV - Health Hazard Data Oxygen Analyzer Appendix Teledyne Analytical Instruments 73 Section V - Emergency and First Aid Procedures Section VI - Handling Information Index Oxygen Analyzer Index Teledyne Analytical Instruments 75