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Teledyne 401 8.9 Ozone Generator Lamp Setup

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Teledyne API Model 401 O3 Photometric Calibrator Instruction Manual, 01124, Rev. J2

CAUTION

UV light present. Do not pull the lamp from the optical

bench assembly.

3. Adjust the UV Detector Pre-Amp gain as follows:

a. Remove the access cap on the Detector cover at the front end of the optical bench, and

adjust the pot (R7) until the O3 REF reading on the display is 4500 mV ± 50 mV.

b. If it is still not possible to achieve a 4500 mV O3 REF reading, increase the UV lamp

drive power by adjusting the lamp power supply as described in Step 1. (DO NOT,

however, allow the voltage measured across the TP7 and TP10 to exceed 21 volts.)

4. Re-calibrate the automatic Detector Dark Current compensation by pressing SETUP-MISC-

DARK-CAL at the front panel. See Section 9.3 for dark current adjustment procedure.

8.9 Ozone Generator Lamp Setup

This procedure only needs to be done if the lamp is replaced or if the lamp is accidentally

moved. The procedure adjusts the lamp for optimum operation of the O3 generator and its

feedback circuit.

1. Enter the SETUP menu by pressing SETUP-MISC-O3-GEN-ADJ. This causes the lamp

drive circuit to output a constant 2.5 V.

If you are installing a new lamp, allow approximately 30 min for lamp output to stabilize.

2. Select the "O3 GEN" TEST function on the front panel display. Loosen the O3 generating

lamp and rotate until the reading on the display is 2500 mv ± 500 mV.

CAUTION

UV light present. Do not pull the lamp from the IZS assembly.

Re-tighten the hold-down screws securing the ozone lamp to the O3 generator assembly.

3. Remove access cap from the O3 generator preamp cover and adjust the pot to refine the front

panel reading to 2500 mv ± 25.

4. The O3 generator lamp and feedback circuit are now set up. Proceed to Section 8.11 to finish

calibration of the O3 generator.

8-8

Contents

Main INSTRUCTION MANUAL MODEL 401 O3 CALIBRATOR SAFETY MESSAGES TABLE OF CONTENTS Page Page 10 ROUTINE MAINTENANCE........................................................................ 10-1 11 MODEL 401 SPARE PARTS AND EXPENDABLES KITS........................ 11-1 LIST OF FIGURES LIST OF TABLES 1 INTRODUCTION 1.1 Preface 1.2 Warranty 1.3 Principle Of Operation a l C n 1.3.1 Interferent Rejection 1.4 Specifications 1-5 Page 1.4.10 Flow Rates 1.4.11 Power 1.4.12 Weight 1.5 Installation And Overview Page Page Page Page Page Page 1.6 Electrical And Pneumatic Connections 1.6.1 Electrical Connections 1.6.2 RS-232 Page 1.6.3 Pneumatic System 1.6.4 Exhaust Connections (See Figure 1-5) 1.6.5 Output Flow Adjustment Page Page Page 1.7 Operation Verification 1.7.1 Final Test And Calibration Values 1-21 Table 1-1: Test Values 1.8 Options 2 OPERATION 2.1 Key Features 2.1.1 O3 Readout 2.1.2 O3 Analog Output 2.1.3 E2 ROM Backup Of Software Configuration 2.1.5 Data Acquisition 2.1.6 RS-232 Interface 2.1.7 Password Protection Page 2.2 Front Panel 2.2.1 Front Panel Display Page Table 2-3: Test Measurements 2-6 2.2.2 Programmable Pushbuttons Page 2.2.3 Status LEDs Page 3 CALIBRATION 3.1 Manual Zero Air Supply 3.2 Manual O3 Generation 3.3 Automatic Zero/Span (or Multipoint) Check 3.4 Manual Zero/Span (or Multi-Point) Check 3.5 Summary Of Front Panel Calibration Controls 3.6 Photometer Calibration 3.7 Remote Zero/Span Check (Contact Closure) 3.8 Remote Zero/Span Check Or Adjustment (RS-232) 3.9 Hold Off Page 4 SETUP MODE 4.1 Setup Mode Operation 4.2 Setting Automatic Multipoint (ASEQ) Check 4.3 Setting Automatic Zero/Span Duration 4.4 Examining The Ozone Formula Slope And Offset + = 4.5 Setting the O3 Generation Mode 4.5.1 BNCH Mode 4.5.2 REF Mode 4.5.3 CNST Mode 4.6 Setting The Time-Of-Day 4.8 Adjusting The Clock Speed 4.9 Setting The O3 Concentration Range 4.10 Setting The Analog Output Offset 4.11 Setting The RS-232 Baud Rate 4.12 Setting The Analyzer I.D. 4.13 Disabling The Calibration Password 4.14 Setting The Fault LED Timeout Page Table 4-1: Setup Variables 4-7 Page 5 DIAGNOSTICS 5.1 Test Measurements 5.2 Diagnostic Tests 5.2.1 D/A Output 6 HANDLING WARNINGS Page 7 RS-232 COMMUNICATIONS 7.1 DAS Reporting 7.2 Warnings 7.3 Status/Control Page 7.4 Diagnostics 7.5 Test Measurements 7.6 Viewing And Modifying Variables Page Page 8 ADJUSTMENTS 8.1 Power Supply Board Adjustment 8.1.1 Box Temperature Limits Page 8.2 A/D - D/A Calibration Procedure 8.3 Output Voltage Range Changes 8.4 Flow Readout Adjustment Page 8.5 DC Power Supply 8.6 CPU 8.7 Status Lines 8.8 UV Lamp Power Supply Adjustment 8.9 Ozone Generator Lamp Setup 8.10 Ozone Generator Calibration 8.11 Dark Current Signal Adjust Procedure 8.12 Bench Feedback Option Teledyne API Model 401 O3 Photometric Calibrator Instruction Manual, 01124, Rev. J2 9 TROUBLESHOOTING 9.1 Overview 9.2 Troubleshooting Fundamental Calibrator Operation 9.2.1 Checking The Power Sub-Systems 9.2.2 Checking The CPU And Display 9.2.3 Checking The Keyboard 9.3 Troubleshooting Using Warning Messages 9-4 9.4 Troubleshooting Using Test Function Values 9.5 Troubleshooting Dynamic Problems 9.5.1 Noisy Or Unstable Readings At Zero 9.5.2 Noisy, Unstable, Or Non-Linear Span Readings 9.5.3 Slow Response To Changes In Concentration 9.5.4 Analog Outputs Do Not Agree With Front Panel Readings 9.5.5 Cannot Zero 9.5.6 Cannot Span 9.6 Troubleshooting Individual Sub-Assemblies And Components 9.6.1 Troubleshooting Flow Problems 9.6.2 Troubleshooting Temperature Problems 9.6.3 Checking The V/F Card Page 9.6.4 Checking The DC Power Supply Board 9.6.5 Checking The Pneumatic Sensor Board 9.6.6 Checking The Source Lamp And Detector Page 9.6.7 Checking Main Switching Valve 9.6.8 Checking The Lamp Power Supply Page Teledyne API Model 401 O3 Photometric Calibrator Instruction Manual, 01124, Rev. J2 Warranty/Repair Questionnaire 9-18 9.7 Warranty/Repair Questionnaire ____________________________________________________________________________________ Teledyne API Model 401 O3 Photometric Calibrator Instruction Manual, 01124, Rev. J2 10 ROUTINE MAINTENANCE 10-1 10.1 Maintenance Schedule 10.2 Leak Checking 10.3 Cleaning Of Sample Cell 10.4 Changing The Prom Page 11 MODEL 401 SPARE PARTS AND EXPENDABLES KITS 11.1 Spare Parts For CE Mark Units 11-2 Teledyne API Model 401 O3 Photometric Calibrator Instruction Manual, 01124, Rev. J2 11.2 Spare Parts For Non-CE Mark Units 11-3 Table 11-2: Spare Parts For Non-CE Mark Units Page Appendix A LIST OF AVAILABLE MODEL 401 OPTIONS Page Appendix B RECOMMENDED ZERO AIR SYSTEM Page Appendix C REFERENCES Page Page Page Appendix E ELECTRICAL SCHEMATIC INDEX