Troubleshooting, Overview, 10-1 | Teledyne 300M manual

10 TROUBLESHOOTING

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A

10 TROUBLESHOOTING

NOTE

The operations outlined in this chapter are to be performed by qualified maintenance personnel only.

10.1 Overview

The Model 300M has been designed to rapidly detect possible problems and allow their quick evaluation and repair. During operation, the analyzer continuously performs self-check diagnostics and provides the ability to monitor the key operating parameters of the instrument without disturbing monitoring operations. These capabilities will usually allow the quick isolation and resolution of a problem.

A systematic approach to troubleshooting will generally consist of the following four steps, performed in order:

1.Confirm the proper operation of fundamental instrument sub-systems (Power Supplies, CPU, Display).

2.Note any warning messages and take corrective action as required.

3.Examine the values of all TEST functions and compare to factory values. Note any major deviations from the factory values and take correction action as required.

4.Address any dynamic (sample related) problems.

The following sections provide a guide for performing each of these steps. Figure 1-2in this manual shows the general layout of components and sub-assemblies in the analyzer and can be referenced in performing the checks described in the following sections.

10-1

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Teledyne 300M instruction manual Troubleshooting, Overview, 10-1

Contents

04033 T-API 6565 NANCY RIDGE DRIVE SAN DIEGO, CATOLL-FREE FAX TEL MODEL 300M CARBON MONOXIDE ANALYZER and in the manner described in this manual SAFETY MESSAGESThe analyzer should only be used for the purpose VIII TABLE OF CONTENTSLIST OF FIGURES LIST OF TABLES 6 HANDLING WARNINGS 3 PERFORMANCE TESTING4 SETUP MODE 5 DIAGNOSTICS 10-1 9 ADJUSTMENTS10 TROUBLESHOOTING 8 CALIBRATION 232 INTERFACE 11 ROUTINE MAINTENANCE12 SPARE PARTS LISTS 12-1 LIST OF FIGURES viii LIST OF TABLES 1.1 Preface 1.2 WarrantyWARRANTY POLICY 02024c 1 INTRODUCTION TERMS AND CONDITIONS 1.3 Principle of Operation Figure 1-1 Pneumatic Diagram 1.4 Specifications suitable vent outside the analyzer area 1.5 Installation and OverviewLeak check all fittings with soap solution lift and carry the Model 300M Power plug must have ground lug Page Figure 1-2 Carbon Monoxide Analyzer 1-10 1.6.3 Status Outputs Optional 1.6.1 Electrical Connections1.6 Electrical and Pneumatic Connections 1.6.2 Remote Contact Closures Zero/Span Inputs 1-12 1.6.4 RS-2321.6.5 Pneumatic System Table 1-1 Status Outputs sample gas connections 1.6.6 Sample Gas Connection1.6.7 Zero/Span Valve Connections 1.6.8 Exhaust Connections 1-14 Figure 1-4 Rear Panel Pneumatic Connections 1-15 1.7 Operation Verification Option Installed Table 1-2 Final Test and Calibration Values1-16 Factory Installed Options 1-17 1.8 Options1.8.1 Rack Mount With Slides 1.8.2 Span Valve 1-18 INTENTIONALLY BLANK 2.1.1 CO Readout 2.1 Key Features2.1.3 E2ROM Backup Of Software Configuration 2 OPERATION 2.1.6 RS-232Interface 2.1.7 Password ProtectionTable 2-1 Password Levels 2.1.5 Data Acquisition DAS 2.2.1 Front Panel Display 2.2 Front Panel Figure 2-1 Model 300M Front Panel Meaning Table 2-2 System ModesMode Meaning Table 2-3 Test MeasurementsTest Message Table 2-4 Warning Messages 2.2.2 Programmable Push Buttons Figure 2-2 Illustration of Normal Display 2.2.3 Status LED’s Meaning Table 2-5 Status LED’sState INTENTIONALLY BLANK 2-10 span gas into the analyzer 3 PERFORMANCE TESTING3.1 Manual Zero/Span Check 3.1.1 Zero Check 3.1.2 Span Check 3.1.3 Dual Range Calibration 3.3 Zero/Span Valves Option 3.2 Span Valve Option 3.4 Automatic Zero/Span Check compute the carbon monoxide reading see Section 4.3 and 4.4 for setting present timeThe programmed start time must be a minimum of 5 minutes later than the present timePage Table 3-1 Calibration Controls to be established least 3-10 3.7 Remote Zero/Span Check or Adjustment RS-2323.8 Power-OnHold Off 3.9 Hold Off 4.1 Setup Mode Operation 4 SETUP MODE 4.5 Adjusting the Clock Speed 4.3Setting the Time-of-Day4.4 Setting the Date 4.6.3 Auto Range Mode AUTO 4.6 Setting the CO Concentration Range4.6.1 Single Range Mode SNGL 4.6.2 Dual Range Mode DUAL 4.10 Disabling the Calibration Password 4.7 Setting the Analog Output Offset4.8 Setting the RS-232Baud Rate 4.9 Setting the Analyzer I.D 4.11.1 Data Channels 4.11 Data Acquisition System DAS 4.12 Software Configuration 4.13.1 Summary of Setup Functions 4.13 Gas Alarms Function Table 4-1 Setup FunctionsDefault Button Sequence Function Table 4-1 Setup Functions ContinuedDefault Button Sequence INTENTIONALLY BLANK 4-10 5.1 Test Measurements 5 DIAGNOSTICS Table 5-1 Diagnostic Tests 5.2 Diagnostic Tests table continued 5.2.1 Signal I/OTable 5-2 I/O Signals Control Table 5-2 I/O Signals ContinuedSignal table continued Control Table 5-2 I/O Signals ContinuedSignal table continued Table 5-2 I/O Signals Continued 5.2.2 Analog Output Test5.2.3 Electric Test Table 5-3 M300M Variables 5.3 M300M Internal Variables INTENTIONALLY BLANK 6 HANDLING WARNINGS INTENTIONALLY BLANK 7 RS-232COMMUNICATIONS Table 7-1 RS-232Port Setup - Front Panel Table 7-2 RS-232Message Types 7.1 DAS ReportingPage 7.2 Warnings Warning Message Cleared Table 7-3 RS-232Warning Message Clear CommandsCommand Table 7-4 Status Reports 7.3 Status/Control when the analyzer is in the sample mode Table 7-5 Control Commands the analyzer is in sample mode 7.4 DiagnosticsTable 7-6 Diagnostic Commands Table 7-7 Diagnostic Reports 7.5 Test Measurements Test Measurement Table 7-8 Test Measurement Request Commands7-10 Command 7-11 7.6 Viewing and Modifying Variables 7-12 Table 7-9 RS-232Variable Names 8.1 Required Equipment and Gas Standards 8 CALIBRATION Figure 8-2 Inlet Venting Recommendations Figure 8-1 Gas Generation System Qv × L = Qa × D 8.2 Multi-PointCalibration 8.2.1Procedure Page Page 8.3 Zero/Span Checking INTENTIONALLY BLANK 9.1.1 Box Temperature Limits 9 ADJUSTMENTS9.1 Power Supply Board Adjustment Figure 9-1:M300M Electrical Block Diagram the value on the voltmeter will remain constant 9.2 A/D - D/A Calibration ProcedurePage 9.4 Output Voltage Range Changes 9.3 Dark Current Signal Adjust ProcedureTo adjust analog recorder offset, see Section 9.5 Flow Readout Adjustment 9.7 CPU 9.6 DC Power Supply INTENTIONALLY BLANK 10-1 10 TROUBLESHOOTING10.1 Overview 10-2 10.2.1 Checking the Power Sub-Systems 10-3 10.3 Troubleshooting Using Warning Messages10.2.2 Checking the CPU and Display 10.2.3Checking the Keyboard Meaning Table 10-1 Warning Messages10-4 Warning Message 10-5 10.4 Troubleshooting Using Test Function Values Meaning Table 10-2 Test Function Values10-6 Test Function 10.5.3Slow Response to Changes in Concentration 10.5 Troubleshooting Dynamic Problems10.5.1Noisy or Unstable Readings at Zero 10.5.2Noisy, Unstable, or Non-LinearSpan Readings 10-8 10.6.1 Troubleshooting Flow Problems10.5.5Cannot Zero or Cannot Dynamic Zero 10.5.6Cannot Span or Cannot Dynamic Span High Flow Hazardous voltages present - use cautionFlow is zero Low Flow Gas Filter Wheel Temperature 10.6.2 Troubleshooting Temperature ProblemsSample Temperature Optical Bench Temperature Hazardous voltages present - use caution 10.6.3 Checking the V/F Card10-11 10-12 Table 10-3 V/F Board Jumpers - Factory Settings 10-13 10.6.3.1 Analog Inputs10.6.3.2 Digital to Analog Converters 10-14 10.6.4 Checking the DC Power Supply Board10.6.3.3 Digital I/O Lines 10-15 10.6.5 Checking the Synchronous Demodulator Board 10-16 10.6.6 Checking the Opto InterrupterFigure 10-1 Opto Pickup Waveform Figure 10-2 Detector Waveform 10-17 10.6.7 Flow/Pressure Sensor 10-18 10.7 Warranty/Repair Questionnaire 11-1 11 ROUTINE MAINTENANCE11.1 Model 300M Maintenance Schedule Table 11-1 Maintenance Schedule Do not exceed 15 PSI of pressure 11.2Replacement of Sample Filter11.3.1 Using a Leak Checker 11.3Leak Checking Use only bubbles, not liquid the solution may enter and contaminate the cell11.3.2 Leak Self Test vacuum. This may cause damage to the analyzer INTENTIONALLY BLANK 11-4 12-1 12 SPARE PARTS LISTS12.1 Spare parts for CE Mark units 12-2 12.2 Model 300M Expendables kit12.3 Model 300M Spare parts kit for one unit Includes Includes 12.4 Model 300M Level 1 parts kit for ten units12-3 12-4 ConnectorsSignal Cables & Adapters come in 4 general types 12-5 Wiring 12-6 Troubleshooting the modem connectionENABLE MODEM TRANSMISSION 12-7 APPENDIX B Electrical drawing indexDrawing Number Title