1 Diagnostic Tests | Teledyne 300M specs

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

5.2 Diagnostic Tests

The diagnostic tests are used to help diagnose a problem in the analyzer and should only be used by skilled maintenance people since they can potentially interfere with the Carbon Monoxide reading. Table 5-1lists low level diagnostic tests. To get into the diagnostic test mode, press SETUP-MORE-DIAG. When the diagnostic mode is entered, a message is sent to the RS-232 channel indicating entry into the diagnostic mode. The buttons that are available to the operator are described below.

The TEST button is used to scroll through the test measurements until the one of interest is displayed. To turn the test on, press the OFF/ON button. Viewing test measurements in the diagnostic mode is especially useful for viewing the results of a diagnostic test.

The PREV button goes to the previous diagnostic test. When pressed, the CPU turns the current diagnostic test OFF if it is ON. The NEXT button goes to the next diagnostic test. When pressed, the CPU turns the current diagnostic test OFF if it is ON. The EXIT button exits the diagnostic mode and turns all the diagnostic tests OFF. This ensures that a diagnostic test is not accidentally left ON. A message is also sent to the RS-232 channel to indicate that the diagnostic mode has been exited.

Table 5-1: Diagnostic Tests

TEST #	Name	Signal	Nominal Value
1.	NONE	No output	0 mV

2.	CO MEASURE	CO detector measure value	4500 mV

3.	CO	CO detector reference value	4200 mV
	REFERENCE
4.	SAMP PRESS	Sample pressure	3650 mV

5.	SAMP FLOW	Sample flowrate	2000 mV

6.	SAMP TEMP	Sample temperature	3000 mV

7.	BENCH TEMP	Optical bench temperature	3900 mV

8.	WHEEL TEMP	Outputs filter wheel temp.	3900 mV

9.	CHASSIS TEMP	Outputs Chassis temp	2740 mV

10.	DCPS VOLT	Outputs DC power	2500 mV

11.	DAS AVERAGE	Current DAS average	Any

5-2

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Teledyne 300M instruction manual 1 Diagnostic Tests

Contents

MODEL 300M CARBON MONOXIDE ANALYZER T-API 6565 NANCY RIDGE DRIVE SAN DIEGO, CATOLL-FREE FAX TEL 04033 The analyzer should only be used for the purpose SAFETY MESSAGESand in the manner described in this manual LIST OF TABLES TABLE OF CONTENTSLIST OF FIGURES VIII 5 DIAGNOSTICS 3 PERFORMANCE TESTING4 SETUP MODE 6 HANDLING WARNINGS 8 CALIBRATION 9 ADJUSTMENTS10 TROUBLESHOOTING 10-1 12-1 11 ROUTINE MAINTENANCE12 SPARE PARTS LISTS 232 INTERFACE LIST OF FIGURES LIST OF TABLES viii 1 INTRODUCTION 1.2 WarrantyWARRANTY POLICY 02024c 1.1 Preface TERMS AND CONDITIONS 1.3 Principle of Operation Figure 1-1 Pneumatic Diagram 1.4 Specifications lift and carry the Model 300M 1.5 Installation and OverviewLeak check all fittings with soap solution suitable vent outside the analyzer area Power plug must have ground lug Page Figure 1-2 Carbon Monoxide Analyzer 1-10 1.6.2 Remote Contact Closures Zero/Span Inputs 1.6.1 Electrical Connections1.6 Electrical and Pneumatic Connections 1.6.3 Status Outputs Optional Table 1-1 Status Outputs 1.6.4 RS-2321.6.5 Pneumatic System 1-12 1.6.8 Exhaust Connections 1.6.6 Sample Gas Connection1.6.7 Zero/Span Valve Connections sample gas connections Figure 1-4 Rear Panel Pneumatic Connections 1-14 1.7 Operation Verification 1-15 Factory Installed Options Table 1-2 Final Test and Calibration Values1-16 Option Installed 1.8.2 Span Valve 1.8 Options1.8.1 Rack Mount With Slides 1-17 INTENTIONALLY BLANK 1-18 2 OPERATION 2.1 Key Features2.1.3 E2ROM Backup Of Software Configuration 2.1.1 CO Readout 2.1.5 Data Acquisition DAS 2.1.7 Password ProtectionTable 2-1 Password Levels 2.1.6 RS-232Interface 2.2 Front Panel 2.2.1 Front Panel Display Figure 2-1 Model 300M Front Panel Mode Table 2-2 System ModesMeaning Test Message Table 2-3 Test MeasurementsMeaning 2.2.2 Programmable Push Buttons Table 2-4 Warning Messages 2.2.3 Status LED’s Figure 2-2 Illustration of Normal Display State Table 2-5 Status LED’sMeaning 2-10 INTENTIONALLY BLANK 3.1.1 Zero Check 3 PERFORMANCE TESTING3.1 Manual Zero/Span Check span gas into the analyzer 3.1.2 Span Check 3.1.3 Dual Range Calibration 3.2 Span Valve Option 3.3 Zero/Span Valves Option 3.4 Automatic Zero/Span Check 5 minutes later than the present time see Section 4.3 and 4.4 for setting present timeThe programmed start time must be a minimum of compute the carbon monoxide readingPage Table 3-1 Calibration Controls least to be established 3.9 Hold Off 3.7 Remote Zero/Span Check or Adjustment RS-2323.8 Power-OnHold Off 3-10 4 SETUP MODE 4.1 Setup Mode Operation 4.4 Setting the Date 4.3Setting the Time-of-Day4.5 Adjusting the Clock Speed 4.6.2 Dual Range Mode DUAL 4.6 Setting the CO Concentration Range4.6.1 Single Range Mode SNGL 4.6.3 Auto Range Mode AUTO 4.9 Setting the Analyzer I.D 4.7 Setting the Analog Output Offset4.8 Setting the RS-232Baud Rate 4.10 Disabling the Calibration Password 4.11 Data Acquisition System DAS 4.11.1 Data Channels 4.12 Software Configuration 4.13 Gas Alarms 4.13.1 Summary of Setup Functions Button Sequence Table 4-1 Setup FunctionsDefault Function Button Sequence Table 4-1 Setup Functions ContinuedDefault Function 4-10 INTENTIONALLY BLANK 5 DIAGNOSTICS 5.1 Test Measurements 5.2 Diagnostic Tests Table 5-1 Diagnostic Tests Table 5-2 I/O Signals 5.2.1 Signal I/Otable continued table continued Table 5-2 I/O Signals ContinuedSignal Control table continued Table 5-2 I/O Signals ContinuedSignal Control 5.2.3 Electric Test 5.2.2 Analog Output TestTable 5-2 I/O Signals Continued 5.3 M300M Internal Variables Table 5-3 M300M Variables INTENTIONALLY BLANK 6 HANDLING WARNINGS INTENTIONALLY BLANK Table 7-1 RS-232Port Setup - Front Panel 7 RS-232COMMUNICATIONS 7.1 DAS Reporting Table 7-2 RS-232Message TypesPage 7.2 Warnings Command Table 7-3 RS-232Warning Message Clear CommandsWarning Message Cleared 7.3 Status/Control Table 7-4 Status Reports Table 7-5 Control Commands when the analyzer is in the sample mode Table 7-7 Diagnostic Reports 7.4 DiagnosticsTable 7-6 Diagnostic Commands the analyzer is in sample mode 7.5 Test Measurements Command Table 7-8 Test Measurement Request Commands7-10 Test Measurement 7.6 Viewing and Modifying Variables 7-11 Table 7-9 RS-232Variable Names 7-12 8 CALIBRATION 8.1 Required Equipment and Gas Standards Figure 8-1 Gas Generation System Figure 8-2 Inlet Venting Recommendations 8.2 Multi-PointCalibration Qv × L = Qa × D 8.2.1Procedure Page Page 8.3 Zero/Span Checking INTENTIONALLY BLANK 9.1 Power Supply Board Adjustment 9 ADJUSTMENTS9.1.1 Box Temperature Limits Figure 9-1:M300M Electrical Block Diagram 9.2 A/D - D/A Calibration Procedure the value on the voltmeter will remain constantPage To adjust analog recorder offset, see Section 9.3 Dark Current Signal Adjust Procedure9.4 Output Voltage Range Changes 9.5 Flow Readout Adjustment 9.6 DC Power Supply 9.7 CPU INTENTIONALLY BLANK 10.1 Overview 10 TROUBLESHOOTING10-1 10.2.1 Checking the Power Sub-Systems 10-2 10.2.3Checking the Keyboard 10.3 Troubleshooting Using Warning Messages10.2.2 Checking the CPU and Display 10-3 Warning Message Table 10-1 Warning Messages10-4 Meaning 10.4 Troubleshooting Using Test Function Values 10-5 Test Function Table 10-2 Test Function Values10-6 Meaning 10.5.2Noisy, Unstable, or Non-LinearSpan Readings 10.5 Troubleshooting Dynamic Problems10.5.1Noisy or Unstable Readings at Zero 10.5.3Slow Response to Changes in Concentration 10.5.6Cannot Span or Cannot Dynamic Span 10.6.1 Troubleshooting Flow Problems10.5.5Cannot Zero or Cannot Dynamic Zero 10-8 Low Flow Hazardous voltages present - use cautionFlow is zero High Flow Optical Bench Temperature 10.6.2 Troubleshooting Temperature ProblemsSample Temperature Gas Filter Wheel Temperature 10-11 10.6.3 Checking the V/F CardHazardous voltages present - use caution Table 10-3 V/F Board Jumpers - Factory Settings 10-12 10.6.3.2 Digital to Analog Converters 10.6.3.1 Analog Inputs10-13 10.6.3.3 Digital I/O Lines 10.6.4 Checking the DC Power Supply Board10-14 10.6.5 Checking the Synchronous Demodulator Board 10-15 Figure 10-2 Detector Waveform 10.6.6 Checking the Opto InterrupterFigure 10-1 Opto Pickup Waveform 10-16 10.6.7 Flow/Pressure Sensor 10-17 10.7 Warranty/Repair Questionnaire 10-18 Table 11-1 Maintenance Schedule 11 ROUTINE MAINTENANCE11.1 Model 300M Maintenance Schedule 11-1 11.3Leak Checking 11.2Replacement of Sample Filter11.3.1 Using a Leak Checker Do not exceed 15 PSI of pressure vacuum. This may cause damage to the analyzer the solution may enter and contaminate the cell11.3.2 Leak Self Test Use only bubbles, not liquid 11-4 INTENTIONALLY BLANK 12.1 Spare parts for CE Mark units 12 SPARE PARTS LISTS12-1 Includes 12.2 Model 300M Expendables kit12.3 Model 300M Spare parts kit for one unit 12-2 12-3 12.4 Model 300M Level 1 parts kit for ten unitsIncludes Cables & Adapters come in 4 general types ConnectorsSignal 12-4 Wiring 12-5 ENABLE MODEM TRANSMISSION Troubleshooting the modem connection12-6 Title APPENDIX B Electrical drawing indexDrawing Number 12-7