Setting the CO Concentration Range | Teledyne 300M guide

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

4.6 Setting the CO Concentration Range

The CO concentration range is the concentration value that corresponds to the maximum voltage output at the rear panel (usually 5 volts). The M300M can operate in one of three analog output Range Modes. The Range Mode can be changed through the SETUP-RNGE-MODEmenu. The modes are described below.

4.6.1 Single Range Mode (SNGL)

In this mode, both analog outputs (REC and DAS) are set to the same range. This range can be set to any value between 1 and 20,000 PPM and is accessed through the SETUP-RNGE-SETmenu. This is the default range mode for the analyzer.

4.6.2 Dual Range Mode (DUAL)

Selecting dual range mode will allow you to select different ranges for the REC and DAS analog outputs. The two ranges are called Low and High. The REC output at the rear panel is used for the Low range and the DAS output is used for the High range. To set the ranges press SETUP- RNGE-SETand select which range you want to edit followed by ENTR.

The High and Low ranges have separate slopes and offsets for computing the Carbon Monoxide concentration. Therefore, the two ranges must be independently calibrated. See Section 3.1.3 for details on calibrating the two ranges.

4.6.3 Auto Range Mode (AUTO)

In auto range mode, the analyzer automatically switches between the Low and High range depending on the concentration. When the CO concentration increases to 98% of the Low range value, the analyzer will switch to the High range. The analyzer will remain in the High range until the CO concentration drops to 75% of the Low range value. It will then switch back to the Low range. Auto ranging changes the range for the REC and DAS outputs simultaneously. To set the ranges press SETUP-RNGE-SETand select which range you want to edit followed by ENTR.

The High and Low ranges have separate slopes and offsets for computing the Carbon Monoxide concentration. Therefore, the two ranges must be independently calibrated. See Section 3.1.3 for details on calibrating the two ranges.

4-3

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Teledyne 300M Setting the CO Concentration Range, Single Range Mode SNGL, Dual Range Mode DUAL, Auto Range Mode AUTO

Contents

TOLL-FREE FAX TEL T-API 6565 NANCY RIDGE DRIVE SAN DIEGO, CAMODEL 300M CARBON MONOXIDE ANALYZER 04033 The analyzer should only be used for the purpose SAFETY MESSAGESand in the manner described in this manual LIST OF FIGURES TABLE OF CONTENTSLIST OF TABLES VIII 4 SETUP MODE 3 PERFORMANCE TESTING5 DIAGNOSTICS 6 HANDLING WARNINGS 10 TROUBLESHOOTING 9 ADJUSTMENTS8 CALIBRATION 10-1 12 SPARE PARTS LISTS 11 ROUTINE MAINTENANCE12-1 232 INTERFACE LIST OF FIGURES viii LIST OF TABLES WARRANTY POLICY 02024c 1.2 Warranty1 INTRODUCTION 1.1 Preface TERMS AND CONDITIONS 1.3 Principle of Operation Figure 1-1 Pneumatic Diagram 1.4 Specifications Leak check all fittings with soap solution 1.5 Installation and Overviewlift and carry the Model 300M suitable vent outside the analyzer area Power plug must have ground lug Page Figure 1-2 Carbon Monoxide Analyzer 1-10 1.6 Electrical and Pneumatic Connections 1.6.1 Electrical Connections1.6.2 Remote Contact Closures Zero/Span Inputs 1.6.3 Status Outputs Optional 1.6.5 Pneumatic System 1.6.4 RS-232Table 1-1 Status Outputs 1-12 1.6.7 Zero/Span Valve Connections 1.6.6 Sample Gas Connection1.6.8 Exhaust Connections sample gas connections 1-14 Figure 1-4 Rear Panel Pneumatic Connections 1-15 1.7 Operation Verification 1-16 Table 1-2 Final Test and Calibration ValuesFactory Installed Options Option Installed 1.8.1 Rack Mount With Slides 1.8 Options1.8.2 Span Valve 1-17 1-18 INTENTIONALLY BLANK 2.1.3 E2ROM Backup Of Software Configuration 2.1 Key Features2 OPERATION 2.1.1 CO Readout Table 2-1 Password Levels 2.1.7 Password Protection2.1.5 Data Acquisition DAS 2.1.6 RS-232Interface 2.2.1 Front Panel Display 2.2 Front Panel Figure 2-1 Model 300M Front Panel Mode Table 2-2 System ModesMeaning Test Message Table 2-3 Test MeasurementsMeaning Table 2-4 Warning Messages 2.2.2 Programmable Push Buttons Figure 2-2 Illustration of Normal Display 2.2.3 Status LED’s State Table 2-5 Status LED’sMeaning INTENTIONALLY BLANK 2-10 3.1 Manual Zero/Span Check 3 PERFORMANCE TESTING3.1.1 Zero Check span gas into the analyzer 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 The programmed start time must be a minimum of see Section 4.3 and 4.4 for setting present time5 minutes later than the present time compute the carbon monoxide readingPage Table 3-1 Calibration Controls to be established least 3.8 Power-OnHold Off 3.7 Remote Zero/Span Check or Adjustment RS-2323.9 Hold Off 3-10 4.1 Setup Mode Operation 4 SETUP MODE 4.4 Setting the Date 4.3Setting the Time-of-Day4.5 Adjusting the Clock Speed 4.6.1 Single Range Mode SNGL 4.6 Setting the CO Concentration Range4.6.2 Dual Range Mode DUAL 4.6.3 Auto Range Mode AUTO 4.8 Setting the RS-232Baud Rate 4.7 Setting the Analog Output Offset4.9 Setting the Analyzer I.D 4.10 Disabling the Calibration Password 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 Default Table 4-1 Setup FunctionsButton Sequence Function Default Table 4-1 Setup Functions ContinuedButton Sequence Function INTENTIONALLY BLANK 4-10 5.1 Test Measurements 5 DIAGNOSTICS Table 5-1 Diagnostic Tests 5.2 Diagnostic Tests Table 5-2 I/O Signals 5.2.1 Signal I/Otable continued Signal Table 5-2 I/O Signals Continuedtable continued Control Signal Table 5-2 I/O Signals Continuedtable continued Control 5.2.3 Electric Test 5.2.2 Analog Output 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 Command Table 7-3 RS-232Warning Message Clear CommandsWarning Message Cleared Table 7-4 Status Reports 7.3 Status/Control when the analyzer is in the sample mode Table 7-5 Control Commands Table 7-6 Diagnostic Commands 7.4 DiagnosticsTable 7-7 Diagnostic Reports the analyzer is in sample mode 7.5 Test Measurements 7-10 Table 7-8 Test Measurement Request CommandsCommand Test Measurement 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 Power Supply Board Adjustment 9 ADJUSTMENTS9.1.1 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 To adjust analog recorder offset, see Section 9.3 Dark Current Signal Adjust Procedure9.4 Output Voltage Range Changes 9.5 Flow Readout Adjustment 9.7 CPU 9.6 DC Power Supply INTENTIONALLY BLANK 10.1 Overview 10 TROUBLESHOOTING10-1 10-2 10.2.1 Checking the Power Sub-Systems 10.2.2 Checking the CPU and Display 10.3 Troubleshooting Using Warning Messages10.2.3Checking the Keyboard 10-3 10-4 Table 10-1 Warning MessagesWarning Message Meaning 10-5 10.4 Troubleshooting Using Test Function Values 10-6 Table 10-2 Test Function ValuesTest Function Meaning 10.5.1Noisy or Unstable Readings at Zero 10.5 Troubleshooting Dynamic Problems10.5.2Noisy, Unstable, or Non-LinearSpan Readings 10.5.3Slow Response to Changes in Concentration 10.5.5Cannot Zero or Cannot Dynamic Zero 10.6.1 Troubleshooting Flow Problems10.5.6Cannot Span or Cannot Dynamic Span 10-8 Flow is zero Hazardous voltages present - use cautionLow Flow High Flow Sample Temperature 10.6.2 Troubleshooting Temperature ProblemsOptical Bench Temperature Gas Filter Wheel Temperature 10-11 10.6.3 Checking the V/F CardHazardous voltages present - use caution 10-12 Table 10-3 V/F Board Jumpers - Factory Settings 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 10-15 10.6.5 Checking the Synchronous Demodulator Board Figure 10-1 Opto Pickup Waveform 10.6.6 Checking the Opto InterrupterFigure 10-2 Detector Waveform 10-16 10-17 10.6.7 Flow/Pressure Sensor 10-18 10.7 Warranty/Repair Questionnaire 11.1 Model 300M Maintenance Schedule 11 ROUTINE MAINTENANCETable 11-1 Maintenance Schedule 11-1 11.3.1 Using a Leak Checker 11.2Replacement of Sample Filter11.3Leak Checking Do not exceed 15 PSI of pressure 11.3.2 Leak Self Test the solution may enter and contaminate the cellvacuum. This may cause damage to the analyzer Use only bubbles, not liquid INTENTIONALLY BLANK 11-4 12.1 Spare parts for CE Mark units 12 SPARE PARTS LISTS12-1 12.3 Model 300M Spare parts kit for one unit 12.2 Model 300M Expendables kitIncludes 12-2 12-3 12.4 Model 300M Level 1 parts kit for ten unitsIncludes Signal ConnectorsCables & Adapters come in 4 general types 12-4 12-5 Wiring ENABLE MODEM TRANSMISSION Troubleshooting the modem connection12-6 Drawing Number APPENDIX B Electrical drawing indexTitle 12-7