Adjustments, Power Supply Board Adjustment | Teledyne 300M specification

9 ADJUSTMENTS

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

9 ADJUSTMENTS

NOTE

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

All adjustments to the Model 300M are easy to make. Pots and test points are readily accessible without removing any components. Figure 1-2is a plan view of the Model 300M CO analyzer showing all the major components. Figure 9-1is an electrical block diagram of Model 300M CO Analyzer.

9.1 Power Supply Board Adjustment

The power supply board provides ±15 v, +12 v, and +5 v DC power to the analyzer. Also four temperature linearization circuits for the bench temperature, sample temperature, box temperature, and the gas wheel temperature are located on the power supply board.

Each circuit is a Whetstone bridge with the measuring thermistor being one leg. A feedback circuit performs the required linearization. Zero adjust pots have been factory set and no field adjustment should be required.

9.1.1 Box Temperature Limits

The box temperature is measured by a thermistor located on the motherboard. The box temperature is not controlled in the Model 300M. The temperature is measured and displayed as a TEST function on the front panel (see Section 5.1). The alarm limits can be set via an RS-232 port command.

9-1

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Teledyne 300M instruction manual Adjustments, Power Supply Board Adjustment, Box Temperature Limits

Contents

04033 T-API 6565 NANCY RIDGE DRIVE SAN DIEGO, CATOLL-FREE FAX TEL MODEL 300M CARBON MONOXIDE ANALYZER SAFETY MESSAGES The analyzer should only be used for the purposeand in the manner described in this manual 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 Table 2-2 System Modes ModeMeaning Table 2-3 Test Measurements Test MessageMeaning Table 2-4 Warning Messages 2.2.2 Programmable Push Buttons Figure 2-2 Illustration of Normal Display 2.2.3 Status LED’s Table 2-5 Status LED’s StateMeaning 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 4.3Setting the Time-of-Day 4.4 Setting the Date4.5 Adjusting the Clock Speed 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 5.2.1 Signal I/O Table 5-2 I/O Signalstable continued Control Table 5-2 I/O Signals ContinuedSignal table continued Control Table 5-2 I/O Signals ContinuedSignal table continued 5.2.2 Analog Output Test 5.2.3 Electric TestTable 5-2 I/O Signals Continued 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 Table 7-3 RS-232Warning Message Clear Commands CommandWarning Message Cleared 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 ADJUSTMENTS 9.1 Power Supply Board Adjustment9.1.1 Box Temperature Limits Figure 9-1:M300M Electrical Block Diagram the value on the voltmeter will remain constant 9.2 A/D - D/A Calibration ProcedurePage 9.3 Dark Current Signal Adjust Procedure To adjust analog recorder offset, see Section9.4 Output Voltage Range Changes 9.5 Flow Readout Adjustment 9.7 CPU 9.6 DC Power Supply INTENTIONALLY BLANK 10 TROUBLESHOOTING 10.1 Overview10-1 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 10.6.3 Checking the V/F Card 10-11Hazardous voltages present - use caution 10-12 Table 10-3 V/F Board Jumpers - Factory Settings 10.6.3.1 Analog Inputs 10.6.3.2 Digital to Analog Converters10-13 10.6.4 Checking the DC Power Supply Board 10.6.3.3 Digital I/O Lines10-14 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 SPARE PARTS LISTS 12.1 Spare parts for CE Mark units12-1 12-2 12.2 Model 300M Expendables kit12.3 Model 300M Spare parts kit for one unit Includes 12.4 Model 300M Level 1 parts kit for ten units 12-3Includes 12-4 ConnectorsSignal Cables & Adapters come in 4 general types 12-5 Wiring Troubleshooting the modem connection ENABLE MODEM TRANSMISSION12-6 12-7 APPENDIX B Electrical drawing indexDrawing Number Title