Teledyne 401 9.6.3 Checking The V/F Card

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

Chassis Temperature

Turn the analyzer off and remove the DC Power Supply Board. Measure across Motherboard J21

pins A30 and C30.

If thermistor resistance(s) are within the proper range, check the temperature linearization

circuits on the DC Power Supply Board as described in Section 9.6.4.

If temperature sensor readings appear accurate but control temperatures are not being maintained

at their proper value, check the operation of the heaters as follows:

1. Observe the indicator LED's on the Power Supply Module and confirm that the red (right-

most) LED is lit, and that the "CEL HTR" and "O3 GEN HTR" LED's are lit or cycling

(turning off and on). If these indicators are not correct, it is probably that the Power Supply

Module, or the V/F Board is at fault. Check as described in Sections 9.2 and 9.6.3.

2. Unplug the heater element from Power Supply Module and confirm that 115VAC is present.

If 115VAC is present, the heater element has failed and should be replaced.

WARNING

Hazardous voltage present - use caution.

9.6.3 Checking The V/F Card

A schematic and physical diagram of the V/F card are shown on Drawings 00514 and 00515 in

Appendix D. Proper operation of the V/F board can be confirmed by performing an ADC

calibration procedure as described in Section 8.2. If this calibration procedure can be performed

correctly, it is probable that the V/F card is functioning properly. If the V/F does not function

properly, check the following:

1. Confirm the presence of appropriate power by checking for:

+5V between TP 4 and TP 5

+15V at TP 1 and TP 3

-15V at TP 2 and TP 3

If any of these voltages are incorrect, check the DC Power Supply as described in Section 9.6.4.

NOTE

Do not disconnect CPU or other digital cards while under power.

9-11

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