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INSTRUCTION MANUAL
MODEL GFC7000E
CARBON DIOXIDE ANALYZER
© TELEDYNE ANALYTICAL INSTRUMENTS
16830 Chestnut St.
City of Industry, Ca. 91748
USA
Phone:
Phone:
Fax:
Fax:
04584
REV. A1
Copyright 2003 Teledyne Instruments Incorporated 02-August-2004
626-961-9221
626-934-1500
626-961-2538
626-934-1651
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Model GFC7000E Instruction Manual GFC7000E Documentation
SAFETY MESSAGES
Your safety and the safety of others is very important. We have provided many important safety
messages in this manual. Please read these messages carefully.
A safety message alerts you to potential hazards that could hurt you or others. Each safety
message is associated with a safety alert symbol. These symbols are found in the manual and
inside the instrument. The definition of these symbols is described below:
GENERAL SAFETY HAZARD: Refer to the instructions for
details on the specific hazard.
CAUTION: Hot Surface Warning
CAUTION: Electrical Shock Hazard
TECHNICIAN SYMBOL: All operations marked with this
symbol are to be performed by qualified maintenance
personnel only.
CAUTION
The analyzer should only be used for the purpose and in the manner described in this
manual. If you use the analyzer in a manner other than that for which it was intended,
unpredictable behavior could ensue with possible hazardous consequences.
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Model GFC7000E Instruction Manual GFC7000E Documentation
TABLE OF CONTENTS
SAFETY MESSAGES I
TABLE OF CONTENTS ...................................................................................................................... II
LIST OF APPENDICES.................................................................................................................... VII
LIST OF FIGURES VII
LIST OF TABLES VIII
1. MGFC7000E DOCUMENTATION..................................................................................................... 1
1.1. Using This Manual ...................................................................................................................1
2. SPECIFICATIONS, APPROVALS AND WARRANTY.......................................................................... 5
2.1. Specifications..........................................................................................................................5
2.2. CE Mark Compliance ................................................................................................................6
2.3. Warranty................................................................................................................................6
3. GETTING STARTED....................................................................................................................... 9
3.1. Unpacking and Initial Set Up .....................................................................................................9
3.1.1. Electrical Connections ......................................................................................................11
3.1.2. Pneumatic Connections:...................................................................................................15
3.1.2.1. Basic Pneumatic Connections...................................................................................... 15
3.1.2.2. Connections with Internal Valve Options Installed..........................................................19
3.2. Initial Operation ....................................................................................................................21
3.2.1. Startup.......................................................................................................................... 22
3.2.2. Warm Up .......................................................................................................................23
3.2.3. Warning Messages ..........................................................................................................24
3.2.4. Functional Check.............................................................................................................25
3.3. Initial Calibration Procedure ....................................................................................................26
4. FREQUENTLY ASKED QUESTIONS............................................................................................... 33
4.1. FAQ’s...................................................................................................................................33
4.2. Glossary...............................................................................................................................34
5. OPTIONAL HARDWARE AND SOFTWARE .................................................................................... 37
5.1. Rack Mount Kits (Options 20a, 20b & 21).................................................................................. 37
5.2. Current Loop Analog Outputs (Option 41) ................................................................................. 37
5.3. Expendable Kits (Options 42C, 42D and 43) .............................................................................. 38
5.4. Calibration Valves Options ......................................................................................................38
5.4.1. Zero/Span/Shutoff Valve (Option 50).................................................................................38
5.4.2. Zero/Span/Shutoff with External CO
5.4.3. Zero/Span Valve (Option 52) ............................................................................................ 40
5.4.4. Zero/Span Valve with External CO
5.5. Communication Options..........................................................................................................41
5.5.1. RS232 Modem Cable (Option 60)....................................................................................... 41
5.5.2. RS-232 Multidrop (Option 62) ...........................................................................................42
5.5.3. Ethernet (Option 63) .......................................................................................................42
5.6. Additional Manuals.................................................................................................................42
5.6.1. Printed Manuals (Option 70) .............................................................................................42
5.6.2. Manual on CD (Part number 045840200)............................................................................43
5.7. Extended Warranty (Options 92 & 93) ...................................................................................... 43
5.8. Dilution Ratio Option (Option ??) ............................................................................................. 43
5.9. Maintenance Mode Switch (Option ??) ...................................................................................... 43
5.10. Second Language Switch (Option ??)......................................................................................44
6. OPERATING INSTRUCTIONS ...................................................................................................... 45
6.1. Overview of Operating modes ................................................................................................. 45
6.2. Sample Mode........................................................................................................................ 46
6.2.1. Test Functions ................................................................................................................46
6.2.2. Warning Messages ..........................................................................................................48
6.3. Calibration Mode ...................................................................................................................50
6.3.1. SETUP – PASS: Calibration Password Security ..................................................................... 50
6.4. SETUP Mode .........................................................................................................................52
6.4.1. SETUP Mode Password Security......................................................................................... 53
6.5. SETUP – CFG: Viewing the Analyzer’s Configuration Information ..................................................53
6.6. SETUP – CLK: Setting the Internal Time-of-Day Clock................................................................. 54
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Scrubber (Option 51)..................................................40
2
Scrubber (Option 53)......................................................41
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6.7. SETUP – RNGE: Analog Output Reporting Range Configuration..................................................... 56
6.7.1. Physical Range versus Analog Output Reporting Ranges........................................................56
6.7.2. Reporting Range Modes ...................................................................................................57
6.7.3. Single Range mode (SNGL) ..............................................................................................58
6.7.4. Dual Range Mode (DUAL).................................................................................................60
6.7.5. Auto Range Mode (AUTO).................................................................................................61
6.7.6. Range Units ...................................................................................................................62
6.7.7. Dilution Ratio ................................................................................................................. 63
6.8. SETUP – VARS: Using the Internal Variables.............................................................................. 64
6.9. SETUP – DIAG: Using the Diagnostics Functions......................................................................... 66
6.9.1. Accessing the Diagnostic Features .....................................................................................67
6.9.2. Signal I/O ......................................................................................................................67
6.9.3. Analog Output Step Test ..................................................................................................68
6.9.4. Analog I/O Configuration.................................................................................................. 69
6.9.4.1. Analog Output Signal Type and Range Span Selection .................................................... 71
6.9.4.2. Analog Output Calibration Mode..................................................................................71
6.9.4.3. Manual Analog Output Calibration and Voltage Adjustment .............................................73
6.9.4.4. Current Loop Output Adjustment.................................................................................75
6.9.4.5. AIN Calibration.........................................................................................................77
6.9.5. Electric Test ...................................................................................................................77
6.9.6. Dark Calibration Test.......................................................................................................78
6.9.7. Pressure Calibration ........................................................................................................ 78
6.9.8. Flow Calibration .............................................................................................................. 80
6.9.9. Test Channel Output........................................................................................................81
6.10. SETUP – COMM: Using the Analyser’s Communication Ports ....................................................... 82
6.10.1. Analyzer ID Code .......................................................................................................... 82
6.10.2. COMM Port Default Settings ............................................................................................ 83
6.10.3. COMM Port Cable Connections......................................................................................... 84
6.10.4. RS-485 Configuration of COM2 ........................................................................................ 84
6.10.5. DTE and DCE Communication..........................................................................................85
6.10.6. COMM Port Communication Modes ................................................................................... 85
6.10.7. COM Port Baud Rate ......................................................................................................88
6.10.8. COM Port Testing ..........................................................................................................89
6.10.9. Ethernet Card Configuration............................................................................................89
6.10.9.1. Ethernet Card COM2 Communication Modes and Baud Rate...........................................90
6.10.9.2. Configuring the Ethernet Interface Option using DHCP..................................................90
6.10.9.3. Manually Configuring the Network IP Addresses........................................................... 92
6.10.9.4. Changing the Analyzer’s HOSTNAME .......................................................................... 94
6.11. SETUP – ALRM: Using the Gas Concentration Alarms.................................................................95
6.12. SETUP – DAS: Using the Data Acquisition System (iDAS)...........................................................96
6.12.1. iDAS Structure.............................................................................................................. 96
6.12.1.1. iDAS Channels........................................................................................................97
6.12.1.2. iDAS Parameters.....................................................................................................98
6.12.1.3. iDAS Triggering Events ............................................................................................ 98
6.12.2. Default iDAS Channels ...................................................................................................99
6.12.2.1. Viewing iDAS Data and Settings .............................................................................. 103
6.12.2.2. Editing iDAS Data Channels .................................................................................... 104
6.12.2.3. Trigger Events ...................................................................................................... 105
6.12.2.4. Editing iDAS Parameters ........................................................................................ 106
6.12.2.5. Sample Period and Report Period............................................................................. 107
6.12.2.6. Number of Records ............................................................................................... 109
6.12.2.7. RS-232 Report Function ......................................................................................... 110
6.12.2.8. Compact Report.................................................................................................... 111
6.12.2.9. Starting Date ....................................................................................................... 111
6.12.2.10. Disabling/Enabling Data Channels.......................................................................... 111
6.12.2.11. HOLDOFF Feature................................................................................................ 112
6.12.3. Remote iDAS Configuration........................................................................................... 113
6.13. Remote Operation of the Analyzer........................................................................................ 115
6.13.1. Remote Operation Using the External Digital I/O.............................................................. 115
6.13.1.1. Status Outputs ..................................................................................................... 115
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6.13.1.2. Control Inputs ...................................................................................................... 116
6.13.2. Remote Operation Using the External Serial I/O............................................................... 117
6.13.2.1. Terminal Operating Modes...................................................................................... 117
6.13.2.2. Help Commands in Terminal Mode........................................................................... 118
6.13.2.3. Command Syntax ................................................................................................. 118
6.13.2.4. Data Types .......................................................................................................... 119
6.13.2.5. Status Reporting................................................................................................... 120
6.13.2.6. Remote Access by Modem ...................................................................................... 120
6.13.2.7. COM Port Password Security ................................................................................... 122
6.13.2.8. APICOM Remote Control Program............................................................................ 122
6.13.3. Additional Communications Documentation ..................................................................... 123
6.13.4. Using the MGFC7000E with a Hessen Protocol Network ..................................................... 123
6.13.4.1. General Overview of Hessen Protocol ....................................................................... 123
6.13.4.2. Hessen COMM Port Configuration ............................................................................ 124
6.13.4.3. Activating Hessen Protocol ..................................................................................... 124
6.13.4.4. Selecting a Hessen Protocol Type ............................................................................ 125
6.13.4.5. Setting The Hessen Protocol Response Mode............................................................. 126
6.13.4.6. Hessen Protocol Gas ID.......................................................................................... 126
6.13.4.7. Setting Hessen Protocol Status Flags ....................................................................... 127
6.13.4.8. Instrument ID Code .............................................................................................. 128
7. CALIBRATION PROCEDURES.................................................................................................... 129
7.1. Before Calibration................................................................................................................ 129
7.1.1. Zero Air and Span Gas................................................................................................... 129
7.1.2. Calibration Gas Traceability ............................................................................................ 130
7.1.3. Data Recording Devices ................................................................................................. 130
7.2. Manual Calibration without Zero/Span Valves .......................................................................... 130
7.3. Manual Calibration Checks .................................................................................................... 133
7.4. Manual Calibration with Zero/Span Valves............................................................................... 133
7.5. Manual Calibration Checks with Zero/Span Valves .................................................................... 137
7.5.1. Zero/Span Calibration on Auto Range or Dual Ranges......................................................... 137
7.5.2. Use of Zero/Span Valves with Remote Contact Closure ....................................................... 138
7.6. Automatic Zero/Span Cal/Check (AutoCal) .............................................................................. 139
7.6.1. AutoCal with Auto or Dual Reporting Ranges Modes Selected............................................... 142
7.7. Calibration Quality............................................................................................................... 142
8. EPA PROTOCOL CALIBRATION ................................................................................................. 143
9. MAINTENANCE SCHEDULE & PROCEDURES .............................................................................. 145
9.1. Maintenance Schedule.......................................................................................................... 145
9.2. Predicting Failures Using the Test Functions ............................................................................ 148
9.3. Maintenance Procedures....................................................................................................... 148
9.3.1. Replacing the Sample Particulate Filter............................................................................. 149
9.3.2. Rebuilding the Sample Pump .......................................................................................... 150
9.3.3. Performing Leak Checks................................................................................................. 150
9.3.3.1. Vacuum Leak Check and Pump Check........................................................................ 150
9.3.3.2. Pressure Leak Check ............................................................................................... 150
9.3.4. Performing a Sample Flow Check..................................................................................... 151
9.3.5. Cleaning the Optical Bench ............................................................................................. 151
9.3.6. Cleaning Exterior Surfaces of the MGFC7000E ................................................................... 151
10. THEORY OF OPERATION......................................................................................................... 153
10.1. Measurement Method......................................................................................................... 153
10.1.1. Beer’s Law ................................................................................................................. 153
10.1.2. Measurement Fundamentals ......................................................................................... 154
10.1.3. Gas Filter Correlation ................................................................................................... 154
10.1.4. Ambient CO
10.2. Pneumatic Operation.......................................................................................................... 158
10.2.1. Sample Gas Flow......................................................................................................... 159
10.2.1.1. Critical Flow Orifice ............................................................................................... 159
10.2.1.2. Sample Pressure Sensor ........................................................................................ 160
10.2.1.3. Sample Flow Sensor .............................................................................................. 160
10.2.1.4. Valve Options....................................................................................................... 161
10.2.2. Purge Gas Pressure and Flow Control ............................................................................. 161
Interference Rejection ............................................................................... 158
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10.3. Electronic Operation........................................................................................................... 161
10.3.1. Overview ................................................................................................................... 161
10.3.2. CPU........................................................................................................................... 163
10.3.3. Optical Bench & GFC Wheel........................................................................................... 163
10.3.3.1. Sample Gas and GFC Temperature Control ............................................................... 163
10.3.3.2. IR Source ............................................................................................................ 164
10.3.3.3. GFC Wheel........................................................................................................... 164
10.3.3.4. IR Photo-Detector ................................................................................................. 165
10.3.4. Synchronous Demodulator (Sync/Demod) Assembly......................................................... 165
10.3.4.1. Overview ............................................................................................................. 165
10.3.4.2. Signal Synchronization and Demodulation ................................................................ 166
10.3.4.3. Phase Lock Warning .............................................................................................. 167
10.3.4.4. Sync/Demod Status LED’s ...................................................................................... 167
10.3.4.5. Photo-Detector Temperature Control........................................................................ 168
10.3.4.6. Dark Calibration Switch.......................................................................................... 168
10.3.4.7. Electric Test Switch ............................................................................................... 168
10.3.5. Relay Board................................................................................................................ 168
10.3.5.1. Status LED’s......................................................................................................... 169
10.3.5.2. I
10.3.6. Mother Board.............................................................................................................. 170
10.3.6.1. A to D Conversion ................................................................................................. 170
10.3.6.2. Sensor Inputs....................................................................................................... 171
10.3.6.3. Thermistor Interface.............................................................................................. 171
10.3.6.4. Analog Outputs..................................................................................................... 172
10.3.6.5. Internal Digital I/O................................................................................................ 172
10.3.6.6. External Digital I/O ............................................................................................... 173
10.3.7. I
10.3.8. Power Supply/ Circuit Breaker....................................................................................... 173
10.4. Interface .......................................................................................................................... 174
10.4.1. Front Panel Interface ................................................................................................... 175
10.4.1.1. Analyzer Status LED’s............................................................................................ 175
10.4.1.2. Keyboard............................................................................................................. 176
10.4.1.3. Display................................................................................................................ 176
10.4.1.4. Keyboard/Display Interface Electronics..................................................................... 177
10.5. Software Operation............................................................................................................ 178
10.5.1. Adaptive Filter ............................................................................................................ 179
10.5.2. Calibration - Slope and Offset........................................................................................ 179
10.5.3. Measurement Algorithm ............................................................................................... 180
10.5.4. Temperature and Pressure Compensation ....................................................................... 180
10.5.5. Internal Data Acquisition System (iDAS)......................................................................... 180
11. TROUBLESHOOTING & REPAIR PROCEDURES ........................................................................ 183
11.1. General Troubleshooting Hints............................................................................................. 183
11.1.1. Interpreting WARNING Messages................................................................................... 184
11.1.2. Fault Diagnosis with TEST Functions............................................................................... 186
11.1.3. Using the Diagnostic Signal I/O Function......................................................................... 188
11.1.4. Internal Electronic Status LED’s..................................................................................... 189
11.1.4.1. CPU Status Indicator ............................................................................................. 189
11.1.4.2. Sync Demodulator Status LED’s .............................................................................. 190
11.1.4.3. Relay Board Status LED’s ....................................................................................... 191
11.1.5. Gas Flow Problems ...................................................................................................... 192
11.1.6. Typical Sample Gas Flow Problems................................................................................. 193
11.1.6.1. Flow is Zero ......................................................................................................... 193
11.1.6.2. Low Flow ............................................................................................................. 193
11.1.6.3. High Flow ............................................................................................................ 194
11.1.6.4. Displayed Flow = “XXXX” ....................................................................................... 194
11.1.6.5. Actual Flow Does Not Match Displayed Flow .............................................................. 194
11.1.6.6. Sample Pump....................................................................................................... 194
11.1.7. Poor or Stopped Flow of Purge Gas ................................................................................ 194
11.2. Calibration Problems .......................................................................................................... 195
11.2.1. Miss-Calibrated ........................................................................................................... 195
2
C Watch Dog Circuitry ........................................................................................ 170
2
C Data Bus............................................................................................................... 173
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11.2.2. Non-Repeatable Zero and Span ..................................................................................... 195
11.2.3. Inability to Span – No SPAN Key.................................................................................... 196
11.2.4. Inability to Zero – No ZERO Key .................................................................................... 196
11.3. Other Performance Problems ............................................................................................... 196
11.3.1. Temperature Problems................................................................................................. 197
11.3.1.1. Box or Sample Temperature ................................................................................... 197
11.3.1.2. Bench Temperature............................................................................................... 197
11.3.1.3. GFC Wheel Temperature ........................................................................................ 198
11.3.1.4. IR Photo-Detector TEC Temperature ........................................................................ 198
11.3.2. Excessive Noise........................................................................................................... 198
11.4. Subsystem Checkout.......................................................................................................... 199
11.4.1. AC Mains Configuration ................................................................................................ 199
11.4.2. DC Power Supply......................................................................................................... 200
11.4.3. I
11.4.4. Keyboard/Display Interface........................................................................................... 201
11.4.5. Relay Board................................................................................................................ 201
11.4.6. Sensor Assembly......................................................................................................... 202
11.4.7. Motherboard............................................................................................................... 204
11.4.8. CPU........................................................................................................................... 206
11.4.9. RS-232 Communications .............................................................................................. 206
11.5. Repair Procedures.............................................................................................................. 207
11.5.1. Repairing Sample Flow Control Assembly ........................................................................ 207
11.5.2. Removing/Replacing the GFC Wheel............................................................................... 209
11.5.3. Disk-On-Chip Replacement Procedure............................................................................. 210
12. A PRIMER ON ELECTRO-STATIC DISCHARGE.......................................................................... 213
12.1. How Static Charges are Created........................................................................................... 213
12.2. How Electro-Static Charges Cause Damage ........................................................................... 214
12.3. Common Myths About ESD Damage ..................................................................................... 215
12.4. Basic Principles of Static Control .......................................................................................... 216
12.4.1. General Rules ............................................................................................................. 216
12.4.2. Basic anti-ESD Procedures for Analyzer Repair and Maintenance ........................................ 218
2
C Bus ...................................................................................................................... 200
11.4.6.1. Sync/Demodulator Assembly .................................................................................. 202
11.4.6.2. Opto Pickup Assembly ........................................................................................... 202
11.4.6.3. GFC Wheel Drive................................................................................................... 203
11.4.6.4. IR Source ............................................................................................................ 203
11.4.6.5. Pressure/Flow Sensor Assembly .............................................................................. 203
11.4.7.1. A/D Functions....................................................................................................... 204
11.4.7.2. Analog Outputs: Voltage ........................................................................................ 204
11.4.7.3. Analog Outputs: Current Loop................................................................................. 204
11.4.7.4. Status Outputs ..................................................................................................... 205
11.4.7.5. Control Inputs – Remote Zero, Span........................................................................ 205
11.4.9.1. General RS-232 Troubleshooting ............................................................................. 206
11.4.9.2. Troubleshooting Analyzer/Modem or Terminal Operation............................................. 207
12.4.2.1. Working at the Instrument Rack.............................................................................. 218
12.4.2.2. Working at a Anti-ESD Work Bench.......................................................................... 218
12.4.2.3. Transferring Components from Rack To Bench and Back............................................. 219
12.4.2.4. Opening Shipments from and Packing Components for Return to Teledyne Instruments
Customer Service. .............................................................................................................. 219
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LIST OF APPENDICES
APPENDIX A - VERSION SPECIFIC SOFTWARE DOCUMENTATION
APPENDIX A-1: MGFC7000E Software Menu Trees, Revision E.0
APPENDIX A-2: Setup Variables For Serial I/O, Revision E.0
APPENDIX A-3: Warnings and Test Functions, Revision E.0
APPENDIX A-4: MGFC7000E Signal I/O Definitions, Revision E.0
APPENDIX A-5: MGFC7000E iDAS Functions, Revision E.0
APPENDIX A-6: Terminal Command Designators, Revision E.0
APPENDIX B - GFC7000E SPARE PARTS LIST
APPENDIX C - REPAIR QUESTIONNAIRE - MGFC7000E
APPENDIX D - ELECTRONIC SCHEMATICS
LIST OF FIGURES
Figure 3-1: Removal of Shipping Screws.......................................................................... 10
Figure 3-2: Rear Panel Layout........................................................................................ 12
Figure 3-3: Pneumatic Connections–Basic Configuration–Using Bottled Span Gas .................. 16
Figure 3-4: Pneumatic Connections–Basic Configuration–Using Gas Dilution Calibrator ........... 17
Figure 3-5: Pneumatic Connections–MGFC7000E with Zero/Span/Shutoff Valves (OPT 50)...... 19
Figure 3-6 Pneumatic Connections–MGFC7000E with Zero/Span/Shutoff Valves and External
Zero Air Scrubber (OPT 51).......................................................................... 19
Figure 3-7: Pneumatic Connections–MGFC7000E with Zero/Span Valves (OPT 52) ................. 20
Figure 3-8: Pneumatic Connections–MGFC7000E with Zero/Span Valves with External Zero air
Scrubber (OPT 53)...................................................................................... 20
Figure 3-9: Example of Pneumatic Set up for Multipoint Calibration of M360 ......................... 21
Figure 3-10: Front Panel Layout ....................................................................................... 23
Figure 3-11: Assembly Layout.......................................................................................... 30
Figure 3-12: Optical Bench Layout.................................................................................... 31
Figure 3-13: Internal Pneumatic Flow – Basic Configuration ................................................. 31
Figure 5-1: Current Loop Option Installed on the Motherboard ............................................ 37
Figure 5-2: Internal Pneumatic Flow – Zero/Span/Shutoff Valves OPT 50 & 51 ...................... 39
Figure 5-3: Internal Pneumatic Flow – Zero/Span OPT 52 & 53 ........................................... 41
Figure 5-4: GFC7000E Ethernet Card and rear panel With Ethernet Installed......................... 42
Figure 6-1: Front Panel Display ...................................................................................... 45
Figure 6-2 Viewing MGFC7000E TEST Functions............................................................... 48
Figure 6-3 Viewing and Clearing MGFC7000E WARNING Messages...................................... 50
Figure 6-4: Analog Output Connector Pin Out ................................................................... 56
Figure 6-5: Setup for Calibrating Analog Voltage Outputs................................................... 74
Figure 6-6: Setup for Calibrating Current Outputs ............................................................. 75
Figure 6-7: Default iDAS Channels Setup....................................................................... 101
Figure 6-8: APICOM user interface for configuring the iDAS.............................................. 113
Figure 6-9: iDAS Configuration Through a Terminal Emulation Program.............................. 114
Figure 6-10: Status Output Connector............................................................................. 115
Figure 6-11: Control Inputs ........................................................................................... 117
Figure 6-12: APICOM Remote Control Program Interface.................................................... 123
Figure 7-1: Pneumatic Connections–Basic Configuration–Using Bottled Span Gas ................ 130
Figure 7-2: Pneumatic Connections–Basic Configuration–Using Gas Dilution Calibrator ......... 131
Figure 7-3: Pneumatic Connections–MGFC7000E with Zero/Span/Shutoff Valves (OPT 50).... 134
Figure 7-4 Pneumatic Connections–MGFC7000E with Zero/Span/Shutoff Valves and External
Zero Air Scrubber (OPT 51)........................................................................ 134
Figure 7-5: Pneumatic Connections–MGFC7000E with Zero/Span Valves (OPT 52) ............... 135
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Figure 7-6: Pneumatic Connections–MGFC7000E with Zero/Span Valves with External Zero air
Scrubber (OPT 53).................................................................................... 135
Figure 9-1: Sample Particulate Filter Assembly ............................................................... 149
Figure 10-1: Measurement Fundamentals ........................................................................ 154
Figure 10-2: GFC Wheel................................................................................................ 155
Figure 10-3: Measurement Fundamentals with GFC Wheel ................................................. 155
Figure 10-4: Affect of CO
Figure 10-5: Effects of Interfering Gas on CO2 MEAS & CO2 REF......................................... 157
Figure 10-6: Chopped IR Signal...................................................................................... 157
Figure 10-7: Internal Pneumatic Flow – Basic Configuration ............................................... 159
Figure 10-8: Flow Control Assembly & Critical Flow Orifice ................................................. 160
Figure 10-9: GFC7000E Electronic Block Diagram ............................................................. 162
Figure 10-10: GFC Light Mask.......................................................................................... 164
Figure 10-11: Segment Sensor and M/R Sensor Output ....................................................... 165
Figure 10-12: GFC7000E Sync / Demod Block Diagram ....................................................... 166
Figure 10-13: Sample & Hold Timing................................................................................. 167
Figure 10-14: Location of relay board Status LED’s ............................................................. 170
Figure 10-15: Power Distribution Block Diagram ................................................................. 174
Figure 10-16: Interface Block Diagram.............................................................................. 175
Figure 10-17: MGFC7000E Front Panel Layout.................................................................... 175
Figure 10-18: Keyboard and Display Interface Block Diagram............................................... 177
Figure 10-19: Basic Software Operation ............................................................................ 179
Figure 11-1: Viewing and Clearing Warning Messages........................................................ 184
Figure 11-2: Example of Signal I/O Function .................................................................... 189
Figure 11-3: CPU Status Indicator .................................................................................. 190
Figure 11-4: Sync/Demod Board Status LED Locations ...................................................... 191
Figure 11-5: Relay Board Status LEDs............................................................................. 191
Figure 11-6: Critical Flow Restrictor Assembly Disassembly ................................................ 208
Figure 11-7: Opening the GFC Wheel Housing .................................................................. 209
Figure 11-8: Removing the GFC Wheel............................................................................. 210
Figure 12-1: Triboelectric Charging................................................................................. 213
Figure 12-2: Basic anti-ESD Work Station........................................................................ 216
Figure A-1: Basic Sample Display Menu .......................................................................... 223
Figure A-2: Sample Display Menu - Units with Z/S Valve or IZS Option installed................... 224
Figure A-3: Primary Setup Menu (Except iDAS) ............................................................... 225
Figure A-4: Primary Setup Menu (iDAS) ......................................................................... 226
Figure A-5: Secondary Setup Menu (COMM & VARS) ........................................................ 227
Figure A-6: Secondary Setup Menu (COMM Menu with Ethernet Card)................................. 228
Figure A-7: Secondary Setup Menu (COMM Menu with HESSEN) ........................................ 229
Figure A-8: Secondary Setup Menu (DIAG) ..................................................................... 230
in the Sample on CO2 MEAS & CO2 REF...................................... 156
2
LIST OF TABLES
Table 2-1: Model GFC7000E Basic Unit Specifications .......................................................... 5
Table 3-1: GFC7000E Analog Output Pin Outs .................................................................. 13
Table 3-2: GFC7000E Status Output Pin Outs ................................................................... 14
Table 3-3: GFC7000E Control Input Pin Outs .................................................................... 15
Table 3-4: Model GFC7000E Rear Panel Pneumatic Connections .......................................... 16
Table 3-5: Front Panel Display During System Warm-Up .................................................... 23
Table 3-6: Possible Warning Messages at Start-Up............................................................ 24
Table 5-1: Zero/Span Valve Operating States for Options 50 & 51....................................... 38
Table 5-2: Zero/Span Valve Operating States for Options 52 & 53....................................... 40
Table 6-1: Analyzer Operating modes.............................................................................. 46
04584 Rev A1 viii
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Model GFC7000E Instruction Manual GFC7000E Documentation
Table 6-2: Test Functions Defined................................................................................... 46
Table 6-3: List of Warning Messages ............................................................................... 49
Table 6-4: Primary Setup Mode Features and Functions ..................................................... 52
Table 6-5: Secondary Setup Mode Features and Functions ................................................. 52
Table 6-6: Variable Names (VARS) Revision B.3 ............................................................... 64
Table 6-7: GFC7000E Diagnostic (DIAG) Functions............................................................ 66
Table 6-8: DIAG - Analog I/O Functions........................................................................... 69
Table 6-9: Analog Output Voltage Ranges........................................................................ 69
Table 6-10: Analog Output Current Loop Range.................................................................. 70
Table 6-11: Analog Output Pin Assignments....................................................................... 70
Table 6-12: Voltage Tolerances for Analog Output Calibration ............................................... 73
Table 6-13: Current Loop Output Calibration with Resistor ................................................... 76
Table 6-14: Test Parameters Available for Analog Output A3 ................................................ 81
Table 6-15: COM1 and COM2 DB-9 Pin Assignments............................................................ 85
Table 6-16: COMM Port Communication modes................................................................... 86
Table 6-17: Ethernet Status Indicators.............................................................................. 89
Table 6-18: LAN/Internet Configuration Properties .............................................................. 90
Table 6-19: Internet Configuration Keypad Functions .......................................................... 94
Table 6-20: CO
Concentration Alarm Default Settings......................................................... 95
2
Table 6-21: Front Panel LED Status Indicators for iDAS ....................................................... 96
Table 6-22: iDAS Data Channel Properties ......................................................................... 97
Table 6-23: iDAS Data Parameter Functions....................................................................... 98
Table 6-24: Status Output Pin Assignments ..................................................................... 116
Table 6-25: Control Input Pin Assignments ...................................................................... 116
Table 6-26: Terminal Mode Software Commands .............................................................. 118
Table 6-27: Command Types ......................................................................................... 119
Table 6-28: Serial Interface Documents........................................................................... 123
Table 6-29: RS-232 Communication Parameters for Hessen Protocol ................................... 124
Table 6-30: Teledyne Instruments Hessen Protocol Response Modes ................................... 126
Table 6-31: Default Hessen Status Bit Assignments........................................................... 127
Table 7-1: AUTOCAL Modes ......................................................................................... 139
Table 7-2: AutoCal ATTRIBUTE Setup Parameters ........................................................... 139
Table 7-3: Calibration Data Quality Evaluation................................................................ 142
Table 9-1: GFC7000E Maintenance Schedule.................................................................. 146
Table 9-2: GFC7000E Test Function Record.................................................................... 147
Table 9-3: Predictive uses for Test Functions.................................................................. 148
Table 10-1: Sync/Demod Status LED Activity ................................................................... 168
Table 10-2: Relay Board Status LED’s ............................................................................. 169
Table 10-3: Front Panel Status LED’s .............................................................................. 176
Table 11-1: Warning Messages - Indicated Failures ........................................................... 185
Table 11-2: Test Functions - Indicated Failures................................................................. 187
Table 11-3: Sync/Demod Board Status Failure Indications ................................................. 190
Table 11-4: I
2
C Status LED Failure Indications ................................................................. 191
Table 11-5: Relay Board Status LED Failure Indications ..................................................... 192
Table 11-6: DC Power Test Point and Wiring Color Codes................................................... 200
Table 11-7: DC Power Supply Acceptable Levels ............................................................... 200
Table 11-8: Relay Board Control Devices ......................................................................... 201
Table 11-9: Opto Pickup Board Nominal Output Frequencies............................................... 202
Table 11-10: Analog Output Test Function - Nominal Values Voltage Outputs.......................... 204
Table 11-11: Analog Output Test Function - Nominal Values Current Outputs ......................... 205
Table 11-12: Status Outputs Check .................................................................................. 205
Table 12-1: Static Generation Voltages for Typical Activities ............................................... 214
Table 12-2: Sensitivity of Electronic Devices to Damage by ESD ......................................... 214
Table A-1: GFC7000E Setup Variables, Revision E.0 ........................................................ 231
04584 Rev A1 ix
Page 11
Model GFC7000E Instruction Manual GFC7000E Documentation
Table A-2: GFC7000E Warning Messages, Revision E.0 .................................................... 238
Table A-3: GFC7000E Test Functions, Revision E.0.......................................................... 239
Table A-4: GFC7000E Signal I/O Definitions, Revision E.0 ................................................ 240
Table A-5: GFC7000E DAS Trigger Events, Revision E.0................................................... 243
Table A-6: GFC7000E iDAS Functions, Revision E.0 ......................................................... 244
Table A-7: Terminal Command Designators, Revision E.0................................................. 245
Table D-1: List of Included Electronic Schematics............................................................ 251
User Notes
04584 Rev A1 x
Page 12
Model GFC7000E Instruction Manual MGFC7000E Documentation
1. MGFC7000E DOCUMENTATION
Thank you for purchasing the Model GFC7000E Gas Filter Correlation Carbon Dioxide Analyzer!
The documentation for this instrument is available in several different formats:
• Printed format, part number 045840100
• Electronic format on a CD-ROM, part number 045840200
®
The electronic manual is in Adobe
Acrobat Reader
the internet at http://www.adobe.com/.
The electronic version of the manual has many advantages:
• Keyword and phrase search feature
• Figures, tables and internet addresses are linked so that clicking on the item will display
the associated feature or open the website.
®
software, which is necessary to view these files, can be downloaded for free from
Systems Inc. “Portable Document Format”. The Adobe®
• A list of chapters and sections as well as thumbnails of each page are displayed to the left
of the text.
• Entries in the table of contents are linked to the corresponding locations in the manual.
• Ability to print sections (or all) of the manual
Additional documentation for the Model GFC7000E CO
Analytical Instruments’ website at http://www.teledyne-ai.com/manuals/
• APICOM software manual, part number 03945
• Multi-drop manual, part number 01842
• DAS Manual, part number 02837.
Analyzer is available from Teledyne
2
1.1. Using This Manual
This manual has the following data structures:
1.0 Table of Contents:
Outlines the contents of the manual in the order the information is presented. This is a good
overview of the topics covered in the manual. There is also a list of tables, a list of figures and a
list of appendices. In the electronic version of the manual, clicking on a any of these table entries
automatically views that section.
04584 Rev A1 1
Page 13
Model GFC7000E Instruction Manual MGFC7000E Documentation
2.0 Specifications and Warranty
This section contains a list of the analyzer’s performance specifications, a description of the
conditions and configuration under which EPA equivalency was approved and Teledyne
Instruments Incorporated’s warranty statement.
3.0 Getting Started:
A concise set of instructions for setting up, installing and running your analyzer for the first time.
4.0 FAQ:
Answers to the most frequently asked questions about operating the analyzer.
5.0 Optional Hardware & Software
A description of optional equipment to add functionality to your analyzer.
6.0 Operation Instructions
This section includes step by step instructions for operating the analyzer and using its various
features and functions.
7.0 Calibration Procedures
General information and step by step instructions for calibrating your analyzer.
8.0 EPA Protocol Calibration
Because CO
is not declared a criteria air pollutant by the US EPA, EPA equivalency is not required
2
for this type of analyzer. Therefore no special calibration methods are needed to satisfy EPA
requirements.
9.0 Instrument Maintenance
Description of certain preventative maintenance procedures that should be regularly performed on
you instrument to keep it in good operating condition. This section also includes information on
using the iDAS to record diagnostic functions useful in predicting possible component failures
before they happen.
10.0 Theory of Operation
An in-depth look at the various principals by which your analyzer operates as well as a description
of how the various electronic, mechanical and pneumatic components of the instrument work and
interact with each other. A close reading of this section is invaluable for understanding the
instrument’s operation.
11.0 Troubleshooting Section:
This section includes pointers and instructions for diagnosing problems with the instrument, such
as excessive noise or drift, as well as instructions on performing repairs of the instrument’s major
subsystems.
04584 Rev A1 2
Page 14
Model GFC7000E Instruction Manual MGFC7000E Documentation
Appendices:
For easier access and better updating, some information has been separated out of the manual
and placed in a series of appendices at the end of this manual. These include: software menu
trees, warning messages, definitions of iDAS & serial I/O variables, spare parts list, repair
questionnaire, interconnect listing and drawings, and electronic schematics.
NOTE
Throughout this manual, words printed in capital, bold letters, such as SETUP or ENTR
represent messages as they appear on the analyzer’s front panel display.
NOTE
The flowcharts in this manual contain typical representations of the analyzer’s display
during the various operations being described. These representations are not intended
to be exact and may differ slightly from the actual display of your instrument.
User Notes
04584 Rev A1 3
Page 15
Page 16
Model GFC7000E Instruction Manual Specifications, Approvals and Warranty
2. SPECIFICATIONS, APPROVALS AND
WARRANTY
2.1. Specifications
Table 2-1: Model GFC7000E Basic Unit Specifications
Min/Max Range
(Physical Analog Output)
Measurement Units ppb, ppm, µg/m3, mg/m3, %(user selectable)
Zero Noise < 0.1 ppm (RMS)
Span Noise < 1% of reading (RMS)
Lower Detectable Limit1 < 0.2 ppm1
Zero Drift (24 hours) <0.25 ppm1
Zero Drift (7 days) <0.5 ppm1
Span Drift (7 Days) 1% of reading above 50 PPM1
Linearity 1% of full scale
Precision 0.5% of reading
Temperature Coefficient < 0.1% of Full Scale per oC
Voltage Coefficient < 0.05% of Full Scale per V
Lag Time 10 sec
Rise/Fall Time 95% in <60 sec
Sample Flow Rate 800cm3/min. ±10%
Temperature Range 5-40oC
Humidity Range 0 - 95% RH, non-condensing
Dimensions H x W x D 7" x 17" x 23.5" (178 mm x 432 mm x 597 mm)
Weight, Analyzer 38 lbs. (17 kg); add 1 lbs (0.5 kg) for IZS
AC Power Rating 100 V, 50/60 Hz (3.25A);
Environmental Installation category (over-voltage category) II; Pollution degree 2
Analog Outputs Three (3) Outputs
Analog Output Ranges 0.1V, 1 V, 5 V, 10 V, 2-20 or 4-20 mA isolated current loop.
Analog Output Resolution 1 part in 4096 of selected full-scale voltage
Status Outputs 8 Status outputs - opto-isolated; including 2 alarm outputs
Control Inputs 6 Control Inputs, 3 defined, 3 spare
Serial I/O One (1) RS-232; One (1) RS-485
Certifications CE: EN61010-1:90 + A1:92 + A2:95, EN61326 - Class A
1
At constant temperature and voltage.
In 1ppb increments from 50ppb to 2 000ppm, dual ranges or auto
ranging
115 V, 60 Hz (3.0 A);
220 – 240 V, 50/60 Hz (2.5 A)
All Ranges with 5% Under/Over Range
Baud Rate : 300 – 115200: Optional Ethernet Interface
04584 Rev A1 5
Page 17
Model GFC7000E Instruction Manual Specifications, Approvals and Warranty
2.2. CE Mark Compliance
Emissions Compliance
The Teledyne Instruments Model GFC7000E Gas Filter Correlation CO
found to be fully compliant with:
EN61326 (1997 w/A1: 98) Class A, FCC Part 15 Subpart B Section 15.107 Class A, ICES-003
Class A (ANSI C63.4 1992) & AS/NZS 3548 (w/A1 & A2; 97) Class A.
Tested on 11-29-2001 at CKC Laboratories, Inc., Report Number CE01-249.
Safety Compliance
The Teledyne Instruments Model GFC7000E Gas Filter Correlation CO
found to be fully compliant with:
IEC 61010-1:90 + A1:92 + A2:95,
Tested on 02-06-2002 at Nemko, Report Number 2002-012219.
Analyzer was tested and
2
Analyzer was tested and
2
2.3. Warranty
Warranty Policy (02024)
Prior to shipment, Teledyne Instruments Incorporated equipment is thoroughly inspected and
tested. Should equipment failure occur, Teledyne Instruments Incorporated assures its customers
that prompt service and support will be available.
Coverage
After the warranty period and throughout the equipment lifetime, Teledyne Instruments
Incorporated stands ready to provide on-site or in-plant service at reasonable rates similar to
those of other manufacturers in the industry. All maintenance and the first level of field
troubleshooting is to be performed by the customer.
Non-API Manufactured Equipment
Equipment provided but not manufactured by Teledyne Instruments Incorporated is warranted
and will be repaired to the extent and according to the current terms and conditions of the
respective equipment manufacturers warranty.
General
Teledyne Instruments Incorporated warrants each product manufactured by Teledyne Instruments
Incorporated to be free from defects in material and workmanship under normal use and service
for a period of one year from the date of delivery. All replacement parts and repairs are warranted
for 90 days after the purchase.
If a product fails to conform to its specifications within the warranty period, Teledyne Instruments
Incorporated shall correct such defect by, in Teledyne Instruments Incorporated’s discretion,
repairing or replacing such defective product or refunding the purchase price of such product.
04584 Rev A1 6
Page 18
Model GFC7000E Instruction Manual Specifications, Approvals and Warranty
The warranties set forth in this section shall be of no force or effect with respect to any product:
(i) that has been altered or subjected to misuse, negligence or accident, or (ii) that has been used
in any manner other than in accordance with the instruction provided by TELEDYNE ANALYTICAL
INSTRUMENTS or (iii) not properly maintained.
THE WARRANTIES SET FORTH IN THIS SECTION AND THE REMEDIES THEREFORE ARE
EXCLUSIVE AND IN LIEU OF ANY IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR PARTICULAR PURPOSE OR OTHER WARRANTY OF QUALITY, WHETHER
EXPRESSED OR IMPLIED. THE REMEDIES SET FORTH IN THIS SECTION ARE THE
EXCLUSIVE REMEDIES FOR BREACH OF ANY WARRANTY CONTAINED HEREIN. Teledyne
Instruments Incorporated SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF OR RELATED TO THIS AGREEMENT OF
TELEDYNE INSTRUMENTS INCORPORATED’S PERFORMANCE HEREUNDER, WHETHER
FOR BREACH OF WARRANTY OR OTHERWISE.
Terms and Conditions
All units or components returned to Teledyne Amnalytical Instruments should be properly packed
for handling and returned freight prepaid to the nearest designated Service Center. After the
repair, the equipment will be returned, freight prepaid.
User Notes
04584 Rev A1 7
Page 19
Page 20
Model GFC7000E Instruction Manual Getting Started
3. GETTING STARTED
3.1. Unpacking and Initial Set Up
CAUTION
To avoid personal injury, always use two persons to lift and carry the
1. Verify that there is no apparent external shipping damage. If damage has occurred, please
advise the shipper first, then Teledyne Analytical Instruments.
2. Included with your analyzer is a printed record of the final performance characterization
performed on your instrument at the factory. This record, titled Final Test and Validation Data
Sheet (part number 04307) is an important quality assurance and calibration record for this
instrument. It should be placed in the quality records file for this instrument.
3. Carefully remove the top cover of the analyzer and check for internal shipping damage.
Model GFC7000E.
• Remove the set screw located in the top, center of the rear panel.
• Remove the four screws fastening the top cover to the unit (two per side).
• Lift the cover straight up. Do not slide backwards.
NOTE
Some versions of the GFC7000E CO2 Analyzer may have a spring loaded fastener at the
top center of the rear panel and as many as eight screws (four per side) fastening the
top cover to the chassis.
NOTE
Static sensitive parts are present on PCA (Printed Circuit Assemblies). Before touching
PCAs, touch a bare metal part of the chassis to discharge any electrostatic potentials or
connect a grounding strap to your wrist.
CAUTION
Never disconnect PCAs, wiring harnesses or electronic subassemblies
4. Inspect the interior of the instrument to make sure all circuit boards and other components
are in good shape and properly seated.
04584 Rev A1 9
while under power.
Page 21
Model GFC7000E Instruction Manual Getting Started
5. Check the connectors of the various internal wiring harnesses and pneumatic hoses to make
sure they are firmly and properly seated.
6. Verify that all of the optional hardware ordered with the unit has been installed. These are
listed on the paperwork accompanying the analyzer.
7. Once you have determined that no shipping damage exists, and the unit includes all expected
hardware options, remove all red colored shipping screws from the bottom of the chassis as
shown in Figure 3-1.
Shipping
Screws
Figure 3-1: Removal of Shipping Screws
NOTE
Save these shipping screws and re-install them whenever the unit is shipped to another
location.
04584 Rev A1 10
Page 22
Model GFC7000E Instruction Manual Getting Started
8. VENTILATION CLEARANCE: Whether the analyzer is set up on a bench or installed into an
instrument rack, be sure to leave sufficient ventilation clearance.
AREA MINIMUM REQUIRED CLEARANCE
Back of the instrument 4 in.
Sides of the instrument
Above and below the instrument 1 in.
• Various rack mount kits are available for this analyzer. See Section 5.1 of this manual
for more information.
3.1.1. Electrical Connections
Check the voltage and frequency label on the rear panel of the
instrument (See Figure 3-2) for compatibility with the local
power before plugging the MGFC7000E into line power.
Power connection must have functioning ground connection.
Do not plug in the power cord if the voltage or
1 in.
CAUTION
frequency is incorrect.
CAUTION
Do not defeat the ground wire on power plug.
CAUTION
Turn off analyzer power before disconnecting or
connecting electrical subassemblies.
Do not operate with cover off.
04584 Rev A1 11
Page 23
Model GFC7000E Instruction Manual Getting Started
Figure 3-2: Rear Panel Layout
9. Attach a strip chart recorder and/or data-logger to the appropriate analog output connections
on the rear panel of the analyzer.
ANALOG
A1 A2 A3 A4
1 2 3 4 5 6 7 8
When the instrument is in its default configuration, the A1 and A2 channels output a signal
that is proportional to the CO
connecting the analog output signal to a chart recorder or for interfacing with a datalogger.
The third analog output, labeled A3 is special. It can be set by the user (see Section
6.9.9) to output any one of the parameters accessible through the <TST TST> keys of the
units sample display.
concentration of the sample gas. Either can be used for
2
The standard configuration for these outputs is mVDC. An optional current loop output is
available for each.
Output A4 is not used on the Model 306E.
Pin-outs for the analog output connector at the rear panel of the instrument are:
04584 Rev A1 12
Page 24
Model GFC7000E Instruction Manual Getting Started
Table 3-1: GFC7000E Analog Output Pin Outs
Pin Analog Output VDC Signal mADC Signal
1 V Out I Out +
2
3 V Out I Out +
4
5 V Out I Out +
6
7 V Out Not Available
8
A1
Ground I Out -
A2
Ground I Out -
A3
Ground I Out -
A4 (Spare)
Ground Not Available
• The default analog output voltage setting of the GFC7000E CO
Analyzer is 0 – 5 VDC
2
with a range of 0 – 500 ppm.
• TO change these settings, see Sections 6.9.4 and 6.7 respectively.
10. If you wish utilize the analyzer’s status outputs to interface with a device that accepts logic-
level digital inputs, such as programmable logic controllers (PLC’s) they are accessed via a 12pin connector on the analyzer’s rear panel labeled STATUS.
1 2 3 4 5 6 7 8 D +
STATUS
NOTE
Most PLC’s have internal provisions for limiting the current that the input will draw from
an external device. When connecting to a unit that does not have this feature, an
external dropping resistor must be used to limit the current through the transistor
output to less than 50mA. At 50mA, the transistor will drop approximately 1.2V from its
collector to emitter.
04584 Rev A1 13
Page 25
Model GFC7000E Instruction Manual Getting Started
The pin assignments for the status outputs can be found in the table below:
Table 3-2: GFC7000E Status Output Pin Outs
Output #
Status
Definition
Condition
1 SYSTEM OK On if no faults are present.
2
CONC VALID
On if CO2 concentration measurement is valid.
If the CO2 concentration measurement is invalid, this bit is OFF.
3 HIGH RANGE On if unit is in high range of DUAL or AUTO range modes.
4 ZERO CAL On whenever the instruments ZERO point is being calibrated.
5 SPAN CAL On whenever the instruments SPAN point is being calibrated.
6 DIAG MODE On whenever the instrument is in DIAGNOSTIC mode.
7 ALARM1
8 ALARM2
On whenever the measured CO
point for ALM1
On whenever the measured CO
point for ALM2
concentration is above the set
2
concentration is above the set
2
D EMITTER BUSS The emitters of the transistors on pins 1-8 are bussed together.
+ DC POWER + 5 VDC
Digital Ground The ground level from the analyzer’s internal DC power supplies.
11. If you wish to use the analyzer’s to remotely activate the zero and span calibration modes,
several digital control inputs are provided via a 10-pin connector labeled CONTROL IN on the
analyzer’s rear panel. Two methods for energizing the inputs are provided below; the first
using the internal +5V available on the CONTROL IN connector and the second, if an external,
isolated supply is employed.
CONTROL IN
A B C D E F U +
S
Z
P
E
A
R
N
O
Local Power Connections
A B C D E F U +
S
Z
P
E
A
R
N
O
-
External Power Connections
CONTROL IN
5 VDC Power
Supply
+
04584 Rev A1 14
Page 26
Model GFC7000E Instruction Manual Getting Started
The pin assignments for the digital control inputs can be found in the table below:
Table 3-3: GFC7000E Control Input Pin Outs
Input #
A
B
C
D
E
F
U
+
Status
Definition
REMOTE ZERO
CAL
REMOTE
SPAN CAL
SPARE
SPARE
SPARE
SPARE
Digital Ground May be connected to the ground of the datalogger/recorder.
Pullup supply
for inputs
Internal +5V
Supply
The Analyzer is placed in Zero Calibration mode. The mode
field of the display will read ZERO CAL R.
The Analyzer is placed in Span Calibration mode. The mode
field of the display will read SPAN CAL R.
Input pin for +5 VDC required to activate pins A – F. This
can be from an external source or from the “+” pin of the
instruments STATUS connector.
Internal source of +5V which can be used to actuate control
inputs when connected to the U pin.
On Condition
12. If you wish to utilize either of the analyzer’s two serial interface COMM ports, refer to Section
6.10 of this manual for instructions on their configuration and usage.
13. If your unit has a Teledyne Instruments Ethernet card (Option 63), plug one end into the 7’
CAT5 cable supplied with the option into the appropriate place on the back of the analyzer
(see Figure 5-4 in Section 5.5.3) and the other end into any nearby Ethernet access port.
3.1.2. Pneumatic Connections:
3.1.2.1. Basic Pneumatic Connections
Figures 3-3 and 3-4 illustrate the most common configurations for gas supply and exhaust lines to
the Model GFC7000E Analyzer. Figure 3-13 illustrates the internal gas flow of the instrument in
its basic configuration.
Please refer to Figure 3-2 for pneumatic connections at the rear panel and Table 3-4 for
nomenclature.
NOTE
Sample and calibration gases should only come into contact with PTFE (Teflon), FEP,
glass, stainless steel or brass. CAUTION
04584 Rev A1 15
Page 27
Model GFC7000E Instruction Manual Getting Started
CAUTION
In order to prevent dust from getting into the gas flow channels of your analyzer, it was
shipped with small plugs inserted into each of the pneumatic fittings on the back panel.
Make sure that all of these dust plugs are removed before attaching
exhaust and supply gas lines.
Table 3-4: Model GFC7000E Rear Panel Pneumatic Connections
Rear Panel Label Function
Connect a gas line from the source of sample gas here.
SAMPLE
Calibration gasses are also inlet here on units without
zero/span/shutoff valve or IZS options installed.
EXHAUST Connect an exhaust gas line of not more than 10 meters long here.
PRESSURE SPAN
On units with zero/span/shutoff valve options installed, connect a
gas line to the source of calibrated span gas here.
Span gas vent outlet for units with zero/span/shutoff valve options
VENT SPAN
installed.
Connect an exhaust gas line of not more than 10 meters long here.
Internal zero air scrubber.
IZS
on units with zero/span/shutoff valve options installed but NO
internal zero air scrubber, attach a gas line to the source of zero air
here.
This inlet supplies purge air to the GFC wheel housing (see section
PURGE IN
10.2.2)
Connect a source of dried air that has been scrubbed of CO
.
2
Calibrated CO
gas at desired
span gas
concentration
MODEL 701
Zero Air
Generator
2
Indicating
soda-lime
Valve
Needle
valve to
control
flow
VENT
Sample
Exhaust
Vent Span
Pressure Span
IZS
Purge In
Source of
SAMPLE Gas
Removed
during
Calibration
MODEL
GFC7000E
Figure 3-3: Pneumatic Connections–Basic Configuration–Using Bottled Span Gas
04584 Rev A1 16
Page 28
Model GFC7000E Instruction Manual Getting Started
Calibrated
CO2 Gas
Indicating
soda-lime
MODEL 701
Zero Air Generator
MODEL 700
Gas Dilution
Calibrator
VENT
Sample
Exhaust
Vent Span
Pressure Span
IZS
Purge In
Source of
SAMPLE Gas
Removed
during
Calibration
MODEL
GFC7000E
Figure 3-4: Pneumatic Connections–Basic Configuration–Using Gas Dilution Calibrator
1. Attach a sample inlet line to the sample inlet port. The SAMPLE input line should not be more
than 2 meters long.
NOTE
Ideally, the pressure of the sample gas should be at ambient pressure (0
psig). Maximum pressure of sample gas should not exceed 1.5 in-Hg over
ambient.
In applications where the sample gas is received from a pressurized
manifold, a vent must be placed as shown to equalize the sample gas with
ambient atmospheric pressure before it enters the analyzer.
This vent line must be:
• At least 0.2m long
• No more than 2m long and vented outside the shelter or immediate
area surrounding the instrument.
04584 Rev A1 17
Page 29
Model GFC7000E Instruction Manual Getting Started
2. Attach sources of zero air and span gas (see Figures 3-3 through 3-8 inclusive).
• Span Gas is a gas specifically mixed to match the chemical composition of the type of gas
being measured at near full scale of the desired measurement range.
In the case of CO
GFC7000E Analyzer it is recommended that you use a gas calibrated to have a CO
measurements made with the Teledyne Analytical Instruments Model
2
content
2
equaling 80% of the range of compositions being measured.
EXAMPLE: If the application is to measure between 0 ppm and 500 ppm, an appropriate
Span Gas would be 400 ppm. If the application is to measure between 0 ppm and 100
ppm, an appropriate Span Gas would be 80 ppm.
• Span Gas can be purchased in pressurized canisters or created using Dynamic Dilution
Calibrator such as the Teledyne Analytical Instruments Model 700 and a source of dried
air scrubbed of CO
such as a Teledyne Analytical Instruments Model 701 Zero Air
2
Generator in combination with a canister of indicating soda-lime.
• Zero Air
is similar in chemical composition to the earths atmosphere but scrubbed of all
components that might affect the analyzer’s readings.
In the case of CO
measurements this means CO2 less than 0.1 ppm of CO2 and Water
2
Vapor. Zero Air can be purchased in pressurized canisters or created using a Teledyne
Instruments Model 701 Zero Air Generator in combination with a canister of indicating
soda-lime.
3. Attach an exhaust line to the exhaust outlet port.
• The exhaust from the pump and vent lines should be vented to atmospheric pressure using
maximum of 10 meters of ¼” PTEF tubing.
CAUTION
Venting should be outside the shelter or immedi ate area surrounding the
instrument.
4. Attach a source of dried air scrubbed of CO
to the purge inlet port
2
NOTE
The source of purge air should be at 20-25 psig and capable of maintaining a flow of at
least 0.5 liters/min.
Purge source air pressure should not exceed 35 pisg
5. Once the appropriate pneumatic connections have been made, check all pneumatic fittings for
leaks using a procedure similar to that defined in Section 9.3.3.
04584 Rev A1 18
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Model GFC7000E Instruction Manual Getting Started
3.1.2.2. Connections with Internal Valve Options Installed
Figures 3-5 through 3-8 show the proper pneumatic connections for MGFC7000E’s with various
optional internal valve sets installed.
Certified
CO2 Gas
MODEL 701
Zero Air
Generator
Needle
valve to
control
Indicating
soda-lime
flow
Source of
Source of
SAMPLE Gas
SAMPLE Gas
VENT
VENT
VENT if input is pressurized
Sample
Exhaust
Vent Span
Pressure Span
IZS
Purge In
MODEL
GFC7000E
Figure 3-5: Pneumatic Connections–MGFC7000E with Zero/Span/Shutoff Valves (OPT
50)
Source of
SAMPLE Gas
VENT if input is pressurized
Certified
CO2 Gas
MODEL 701
Zero Air
Generator
Indicating
soda-lime
VENT
External Zero
Air Scrubber
Sample
Exhaust
Vent Span
Pressure Span
IZS
Purge In
MODEL
GFC7000E
Figure 3-6 Pneumatic Connections–MGFC7000E with Zero/Span/Shutoff Valves and
External Zero Air Scrubber (OPT 51)
04584 Rev A1 19
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Model GFC7000E Instruction Manual Getting Started
Certified
CO
Gas
2
Indicating
soda-lime
MODEL 701
Zero Air
Generator
Needle
valve to
control flow
Source of
SAMPLE Gas
MODEL 700
Gas Dilution
Calibrator
VENT
VENT
VENT if input is pressurized
Sample
Exhaust
Vent Span
Pressure Span
IZS
Purge In
MODEL
GFC7000E
Figure 3-7: Pneumatic Connections–MGFC7000E with Zero/Span Valves (OPT 52)
Certified
CO Gas
Source of
SAMPLE Gas
VENT if input is pressurized
MODEL 700
Gas Dilution
Calibrator
Indicating
soda-lime
MODEL 701
Zero Air Generator
VENT
External Zero
Air Scrubber
Sample
Exhaust
Vent Span
Pressure Span
IZS
Purge In
MODEL
GFC7000E
Figure 3-8: Pneumatic Connections–MGFC7000E with Zero/Span Valves with External
Zero air Scrubber (OPT 53)
04584 Rev A1 20
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Model GFC7000E Instruction Manual Getting Started
Some applications may require multipoint calibration checks where span gas of several different
concentrations is needed. We recommend using high-concentration, certified, calibration gas
supplied to the analyzer through a Gas Dilution Calibrator such as a Teledyne Instruments Model
700. This type of calibrator precisely mixes Span Gas and Zero Air to produce any concentration
level between 0 ppm and the concentration of the calibrated gas.
Figure 3-8 depicts the pneumatic set up in this sort of application of a Model GFC7000E CO
2
Analyzer with zero/span/shutoff valve option 50 installed (a common configuration for this type of
application).
Calibrated
Gas
CO
2
Zero Air Generator
Gas Pressure should
be regulated at
30 – 35 PSIG
Indicating
soda-lime
MODEL 701
MODEL 700
Gas Dilu tion
VENT
Needle
valve to
control flow
Calibrator
VENT
VENT
Source of
SAMPLE Gas
VENT if input is pressurized
Sample
Exhaust
Vent Span
Pressure Span
IZS
Purge In
MODEL
GFC7000E
Figure 3-9: Example of Pneumatic Set up for Multipoint Calibration of M360
3.2. Initial Operation
If you are unfamiliar with the MGFC7000E theory of operation, we recommend that you read
Chapter 10.
For information on navigating the analyzer’s software menus, see the menu trees described in
Appendix A.1.
NOTE
The analyzer’s cover must be installed to ensure that the temperatures of the GFC
wheel and absorption cell assemblies are properly controlled.
04584 Rev A1 21
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Model GFC7000E Instruction Manual Getting Started
y
3.2.1. Startup
After electrical and pneumatic connections are made, turn on the instrument and pump power.
The exhaust and PMT cooler fans should start. The display should immediately display a single,
horizontal dash in the upper left corner of the display. This will last approximately 30 seconds
while the CPU loads the operating system.
Once the CPU has completed this activity it will begin loading the analyzer firmware and
configuration data. During this process, string of messages will appear on the analyzer’s front
panel display:
SELECT START OR REMOTE : 3
START .
CHECKING FLASH STATUS
STARTING INSTRUMENT CODE : 1
STARTING INSTRUMENT W/FLASH : 1
M200E NOX ANALYZER
BOOT PROGRESS [XXXXX 50%_ _ _ _ _]
: 1
System waits 3 seconds
then automatically begins
its initialization routine.
No action required.
System is checking the format
of the instrument’s flash
memory chip.
If at this point,
**FLASH FORMAT INVALID**
appears, contact T–API customer service
The instrument is loading
configuration and calibration
data from the flash chip
The instrument is
loading the analyzer
firmware.
SOFTWARE REVISION D.6
BOOT PROGRESS [XXXXXXXX 80% _ _]
SAMPLE SYSTEM RESET CO2=X.XXX
TEST CAL CLR SETUP
Press CLR to clear
warning messages.
(see Section 3.2.3)
initial
The revision level of the
firmware installed in your
analyzer is briefly displayed
Firmware
booted
full
04584 Rev A1 22
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Model GFC7000E Instruction Manual Getting Started
The analyzer should automatically switch to SAMPLE mode after completing the boot-up
sequence and start monitoring CO
gas. Warm-Up
2
3.2.2. Warm Up
The MGFC7000E requires about 30 minutes warm-up time before reliable CO2 measurements can
be taken. During that time, various portions of the instrument’s front panel will behave as follows.
See Figure 3-10 for locations.
Table 3-5: Front Panel Display During System Warm-Up
Name Color Behavior Significance
Concentration
Field
Mode Field N/A Displays blinking
STATUS LED’s
Sample Green On
Cal Yellow Off The instrument’s calibration is not enabled.
Fault Red Blinking The analyzer is warming up and hence out of
N/A Displays current,
compensated CO
N/A
2
Concentration
Instrument is in sample mode but is still in the
“SAMPLE”
process of warming up.
Unit is operating in sample mode, front panel
display is being updated.
Flashes On/Off when adaptive filter is active
specification for a fault-free reading. various warning
messages will appear.
FASTENER
KEY DEFINITIONS
MODE FIELD
KEYBOARD ON / OFF SWITCH
MESSAGE FIELD
SAMPLE A
<TST
TST> CAL
GAS FILTER CORRELATION CO2 ANALYZER- MODEL GFC7000E
LOCKING SCREW
RANGE = 500.0 PPM
CONCENTRATION FIELD STATUS LED’s
CO2 = 400.0
Figure 3-10: Front Panel Layout
SETUP
FASTENER
SAMPLE
CAL
FAULT
POWER
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Model GFC7000E Instruction Manual Getting Started
3.2.3. Warning Messages
Because internal temperatures and other conditions may be outside be specified limits during the
analyzer’s warm-up period, the software will suppress most warning conditions for 30 minutes
after power up.
If warning messages persist after the 30 minutes warm up period is over, investigate their cause
using the troubleshooting guidelines in Chapter 11 of this manual. The following table includes a
brief description of the various warning messages that may appear.
Table 3-6: Possible Warning Messages at Start-Up
MESSAGE MEANING
ANALOG CAL WARNING
BENCH TEMP WARNING
BOX TEMP WARNING
CANNOT DYN SPAN
CANNOT DYN ZERO
The instruments A/D circuitry or one of its analog outputs is not calibrated.
The Temperature of the optical bench is outside the specified limits.
Remote span calibration failed while the dynamic span feature was set to
turned on
Remote zero calibration failed while the dynamic zero feature was set to
turned on
Configuration was reset to factory defaults or was erased.
CONFIG INITIALIZED
CONC ALRM1 WARNING
CONC ALRM2 WARNING
DATA INITIALIZED
FRONT PANEL WARN
PHOTO TEMP WARNING
REAR BOARD NOT DET
RELAY BOARD WARN
SAMPLE FLOW WARN
SAMPLE PRESS WARN
SAMPLE TEMP WARN
SOURCE WARNING
SYNC WARNING
SYSTEM RESET
WHEEL TEMP WARNING
Configuration storage was reset to factory configuration or erased.
Concentration alarm 1 is enabled and the measured CO2 level is ≥ the set
point.
Concentration alarm 2 is enabled and the measured CO2 level is ≥ the set
point.
iDAS data storage was erased.
Firmware is unable to communicate with the front panel.
The temperature of the IR photometer is outside the specified limits.
The CPU is unable to communicate with the motherboard.
The firmware is unable to communicate with the relay board.
The flow rate of the sample gas is outside the specified limits.
Sample gas pressure outside of operational parameters.
The temperature of the sample gas is outside the specified limits.
The IR source may be faulty.
The instrument is not properly tracking the rotation of the Gas Filter
Correlation wheel.
The computer was rebooted.
The Gas Filter Correlation wheel temperature is outside the specified limits.
04584 Rev A1 24
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Model GFC7000E Instruction Manual Getting Started
1
g
To View and Clear the various warning messages press:
TEST
deactivates warning
messages
SAMPLE HVPS WARNING CO2 = 0.00
TEST CAL MSG CLR SETUP
MSG activates warning
<TST TST> keys replaced with
Press
If more than one warning is active, the
next message will take its place
Once the last warning has been
cleared, the analyzer returns to
messages.
TEST
key
CLR
to clear the current
message.
SAMPLE
mode
If the warning message persists
after several attempts to clear it,
the message may indicate a
real problem and not an artif a c t
NOTE:
of the warm-up period
SAMPLE
< TST TST > CAL
SAMPLE HVPS WARNING CO2 = 0.00
TEST CAL MSG
Make sure warning messages are
not due to real problems.
RANGE=500.000 PPM
MSG
CO2 = 0.00
CLR SETUP
CLR
SETUP
3.2.4. Functional Check
1. After the analyzer’s components has warmed up for at least 30 minutes, verify that the
software properly supports any hardware options that were installed.
2. Check to make sure that the analyzer is functioning within allowable operating parameters.
Appendix C includes a list of test functions viewable from the analyzer’s front panel as well as
their expected values. These functions are also useful tools for diagnosing performance
problems with your analyzer (Section 11.1.2). The enclosed Final Test and Validation Data
sheet (part number 04307) lists these values before the instrument left the factory.
To view the current values of these parameters press the following key sequence on the
analyzer’s front panel. Remember until the unit has completed its warm up these parameters
may not have stabilized.
SAMPLE
< TST TST >
<TST TST>
Toggle
scroll throu
Only appears instrument is set
for
h list of functions
DUAL
or
range modes
RANGE = 500.000 PPM
CO2 = XXX.X
CAL SETUP
RANGE
RANGE1
keys to
RANGE2
STABIL
CO2 MEAS
CO2 REF
MR RATIO
SAMP FL
SAMP TEMP
BENCH TEMP
WHEEL TEMP
BOX TEMP
PHT DRIVE
AUTO
reporting
SLOPE
OFFSET
PRES
TEST
TIME
1
1
Refer to
Section
6.X.X for
definitions
of these
test
functions.
04584 Rev A1 25
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Model GFC7000E Instruction Manual Getting Started
3. If your analyzer has a Ethernet card (Option 63) installed and your network is running a
dynamic host configuration protocol (DHCP) software package, the Ethernet option will
automatically configure its interface with your LAN. However, it is a good idea to check these
settings to make sure that the DHCP has successfully downloaded the appropriate network
settings from your network server (See Section 6.10.9.2).
If your network is not running DHCP, you will have to configure the analyzer’s interface
manually (See Section 6.10.9.3).
3.3. Initial Calibration Procedure
The next task is to calibrate the analyzer.
To perform the following calibration you must have sources for zero air and span gas available for
input into the sample port on the back of the analyzer. See Section 3.1.2 for instructions for
connecting these gas sources.
While it is possible to perform this procedure with any range setting we recommend that you
perform this initial checkout using the 50 ppm range.
NOTE
The following procedure assumes that the instrument does not have any of
the available Zero/Span Valve Options installed.
See Section 7.4 for instructions for calibrating instruments possessing Z/S
1. Set the Analog Output Range of the MGFC7000E
valve options.
04584 Rev A1 26
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Model GFC7000E Instruction Manual Getting Started
Press this button to set
the analyzer for SNGL
DUAL
AUTO
or
ranges
To change the value of the
reporting range span, enter the
number by pressing the key under
each digit until the expected value
appears.
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SAMPLE ENTER SETUP PASS : 818
8 1 8 ENTR EXIT
SETUP X.X
CFG DAS
SETUP X.X
MODE SET UNIT EXIT
SETUP X.X RANGE: 500.000 CONC
0 0 5 0 0 .0 ENTR EXIT
SETUP X.X RANGE: 500.000 Conc
0 0 0 5 0 .0
RNGE
PASS CLK MORE EXIT
RANGE CONTROL MENU
ENTR EXIT
Press this button to select the
concentration units of measure:
PPB, PPM, UGM, MGM
EXIT ignores the new setting and
returns to the
ENTR
accepts the new setting and
RANGE CONTROL MENU
RANGE CONTROL
MENU.
returns to the
.
04584 Rev A1 27
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Model GFC7000E Instruction Manual Getting Started
2. Set the expected CO
The CO2 span
concentration values
automatically default to
400.0 Conc.
To change this value to
the actual concentration of
the span gas, enter the
number by pressing the
key under each digit until
the expected value
appears.
span gas concentration
2
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST >
M-P CAL RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > ZERO
M-P CAL
0 0 0 4 5 .0 ENTR EXIT
SETUP
CAL
EXIT
CONC
CO2 SPAN CONC: 400.000 Conc
This sequence causes the
analyzer to prompt for the
expected CO
concentration.
EXIT ignores the new setting
and returns to the previous
ENTR accepts the new setting
and returns to the
previous display..
span
2
display.
NOTE
For this Initial Calibration it is important to independently verify the precise CO2
Concentration Value of the SPAN gas.
If the source of the Span Gas is from a Calibrated Bottle, use the exact concentration
value printed on the bottle.
04584 Rev A1 28
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Model GFC7000E Instruction Manual Getting Started
A
A
3. Perform the Zero/Span Calibration Procedure
SAMPLE* RANGE = 500.000 PPM CO2 =XXX.X
< TST
SAMPLE
< TST TST > CAL SETUP
M-P CAL STABIL= XXX.X PPM CO2 =XXX.X
< TST TST > CAL SETUP
M-P CAL
< TST TST >
M-P CAL
< TST TST > ENTR CONC EXIT
> CAL SETUP
TST
STABIL= XXX.X PPM
Allow zero gas to enter the sample port at the
ZERO
CTION:
rear of the instrument.
STABIL=XXX.X PPM
CONC EXIT
STABIL=XXX.X PPM
CO2 =XXX.X
CO2 =XXX.X
CO2 =XXX.X
Set the Displa y to sh o w the
This function calculates the
Press
OFFSET & SLOPE values for the
Press EXIT to leave the calibration
unchanged and return to the
test function.
STABIL
stability of the CO
measurement
Wait until STABIL
falls below 1.0 ppm.
This may take several
minutes.
ENTR
measurements.
CO
2
previous menu.
x
to changes the
CTION:
rear of the instrument.
CONC EXIT
SPAN
SPAN CONC
The
appears during the
transition from zero to
You may see both keys.
If either the ZERO or
SPAN
appear see Section 11
for troubleshooting tips.
key now
SPAN
span.
buttons fail to
Allow span gas to enter the sam ple po rt at the
M-P CAL STABIL=XXX.X PPM CO2 =XXX.X
< TST TST >
M-P CAL RANGE = 500.000 PPM CO2 =XXX.X
< TST TST >
M-P CAL RANGE = 500.000 PPM CO2 =XXX.X
< TST TST > ENTR CONC EXIT
ENTR
The Model GFC7000E Analyzer is now ready for operation
EXIT
The value of
STABIL may jump
significantly.
Wait until it falls back
below 1.0 ppm
This may take several
minutes.
Press
OFFSET & SLOPE values for the
CO
Press EXIT to leave the calibration
unchanged and return to t he
previous menu.
returns to the main
EXIT
SAMPLE display
change the
ENTR to
measurements.
2
04584 Rev A1 29
Page 41
Model GFC7000E Instruction Manual Getting Started
&
(
)
NOTE
Once you have completed the above set-up procedures, please fill out the Quality
Questionnaire that was shipped with your unit and return it to Teledyne Instruments.
This information is vital to our efforts in continuously improving our service and our
products.
THANK YOU.
Front Panel
On/Off Switch
Circuit Breake r
GFC Wheel
Housing Purge
Gas Inlet & Flow
Control Orifice
GFC Motor
GFC Wheel Housing
& IR Source Heat
Sample Gas
Critical
Flow Orifice
Pump Assy
Power
Receptacle
(+5 VDC; ±15VDC)
PS1
+12 VDC
PS2
Purge Gas
Pressure
Control Assy
Sample Gas
Temperature
Relay Board
Sensor
Mother
Board
OPTICAL BENCH
SYNC/DEMOD BOARD
CPU Card
IR Source
Particulate Filter
Optical Be nch
Gas Inlet
Optional
Sample/Cal
Valve
Optional
Zero/Span
Valve
Gas Flow
Sensor Assy
Flow Sensor
Optional
Shutoff
Valve
Sample Gas
Pressure Sensor
Optical Be nch
Gas Outlet
Optional
Ethernet Card
Rear Panel
Fan
Figure 3-11: Assembly Layout
04584 Rev A1 30
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Model GFC7000E Instruction Manual Getting Started
V
g
Opto-Pickup
PCA
GFC Temperature
Sensor
Sync/Demod PCA
Housing
GFC Heater
Sample Gas Flow
Sensor
Purge Gas
Inlet
GFC Wheel
Heat Sync
GFC Wheel Motor
IR Source
Sample Gas Outlet
fitting
Sample Chamber
Pressure Sensor(s )
Shock Absorbing
Mounting Bracket
Purge Gas
Pressure Regulator
Bench
Temperature
Thermistor
SAMPLE GAS
INLET
EXHAUST GAS
OUTLET
PURGE GAS
INLET
ENT SPAN
OUTLET
PRESSURE
SPAN INLET
IZS INLET
Figure 3-12: Optical Bench Layout
INSTRUMENT CHASSIS
FLOW / PRESSURE
SENSOR PCA
FLOW
SENSOR
PUMP
e Gas
Pur
Pressure
Control Assy
PRESSUR E
SAMPLE
SENSOR
Flow Orifice
Purge Gas
Sample Gas Critical
Flow Rate
Control
Orifice
GFC Wheel
Motor
GFC Motor
Heat Sync
SAMPLE CHAMBER
PARTICULATE
GFC Wheel
FILTER
Housing
Figure 3-13: Internal Pneumatic Flow – Basic Configuration
04584 Rev A1 31
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Model GFC7000E Instruction Manual Getting Started
User Notes
04584 Rev A1 32
Page 44
Model GFC7000E Instruction Manual Frequently Asked Questions
4. FREQUENTLY ASKED QUESTIONS
4.1. FAQ’s
The following is a list from the Teledyne Instruments’ Customer Service Department of the most
commonly asked questions relating to the Model CO
Q: How do I get the instrument to zero / Why is the zero key not displayed?
A: See Section 11.2.4 Inability to zero.
Q: How do I get the instrument to span / Why is the span key not displayed?
A: See Section 11.2.3 Inability to span.
Q: Why does the ENTR key sometimes disappear on the Front Panel Display?
A: During certain types of adjustments or configuration operations, the ENTR key will disappear if
you select a setting that is nonsensical (such as trying to set the 24-hour clock to 25:00:00) or
out of the allowable range for that parameter (such as selecting an iDAS Holdoff period of more
than 20 minutes).
Once you adjust the setting in question to an allowable value, the ENTR key will re-appear.
Analyzer.
2
Q: Is there an optional midpoint calibration?
A: There is an optional mid point linearity adjustment, however, midpoint adjustment is applicable
only to applications where CO
Instruments’ Service Department for more information on this topic.
Q: How do I make the display and datalogger analog input agree?
A: This most commonly occurs when an independent metering device is used besides the
datalogger/recorded to determine gas concentration levels while calibrating the analyzer. These
disagreements result from the analyzer, the metering device and the datalogger having slightly
different ground levels.
If the only difference is a DC offset then it is possible to enter a compensating value in the analog
outputs. This procedure is described in Section 6.9.4.3 of this manual.
Alternately, use the datalogger itself as the metering device during calibrations procedures.
Q: How do I perform a leak check?
See Section 9.3.3.
Q: How do I measure the sample flow?
A: Sample flow is measured by attaching a calibrated rotameter, wet test meter, or other flow-
measuring device to the sample inlet port when the instrument is operating. The sample flow
should be 800 cm
3
/min ±10%. See Section 9.3.4.
measurements are expected above 100 ppm. Call Teledyne
2
04584 Rev A1 33
Page 45
Model GFC7000E Instruction Manual Frequently Asked Questions
Q: How long does the IR source last?
A: Typical lifetime is about 2-3 years.
Q: Where is the sintered filter/sample flow control orifice?
A: These components are located inside the flow control assembly that is attached to the inlet side
of the sample pump, see Figure 3-13. See Section 11.5.1 for instructions on disassembly and
replacement.
Q: How do I set up a SEQUENCE to run a nightly calibration check?
A: The setup of this option is located in Section 7.6.
Q: How do I set the analog output signal range and offset?
A: Instructions for this can be found in Section 6.9.4 which describes analog I/O configuration.
Q: What is the averaging time for an GFC7000E?
A: The default averaging time, optimized for ambient pollution monitoring, is 150 seconds for
stable concentrations and 10 seconds for rapidly changing concentrations; see Section 10.5.1 for
more information. However, it is adjustable over a range of 0.5 second to 200 seconds (please
contact customer service for more information).
4.2. Glossary
ASSY - acronym for Assembly
DAS - acronym for data acquisition system, the old acronym of iDAS.
DIAG - acronym for diagnostics, the diagnostic settings of the analyzer
DHCP: acronym for dynamic host configuration protocol. A protocol used by LAN or Internet
servers to automatically set up the interface protocols between themselves and any other
addressable device connected to the network.
DOC - Disk On Chip, the analyzer’s central storage area for analyzer firmware, configuration
settings and data. This is a solid state device without mechanically moving parts that acts as a
computer hard disk drive under Æ DOS with disk label “C”. DOC chips come with 8 mb in the Eseries analyzer standard configuration but are available in larger sizes.
DOS - Disk Operating System. The E-series analyzers uses DR DOS
EEPROM - also referred to as a FLASH chip.
FLASH - flash memory is non-volatile, solid-state memory.
GFC – Acronym for Gas Filter Correlation.
2
C bus - a clocked, bi-directional, serial bus for communication between individual analyzer
I
components
04584 Rev A1 34
Page 46
Model GFC7000E Instruction Manual Frequently Asked Questions
iDAS - acronym for internal data acquisition system
IP – acronym for internet protocol
LAN - acronym for local area network
LED - acronym for light emitting diode
PCA - acronym for printed circuit assembly, the Æ PCB with electronic components, ready to use.
PCB - acronym for printed circuit board, the bare board without electronic components
RS-232 - an electronic communications type of a serial communications port
RS-485 - an electronic communications type of a serial communications port
TCP/IP - acronym for transfer control protocol / internet protocol, the standard communications
protocol for Ethernet devices.
VARS - acronym for variables, the variables settings of the analyzer
User Notes
04584 Rev A1 35
Page 47
Page 48
Model GFC7000E Instruction Manual Optional Hardware and Software
5. OPTIONAL HARDWARE AND SOFTWARE
This section includes a brief description of the hardware and software options available for the
Model GFC7000E Gas Filter Correlation Carbon Dioxide Analyzer. For assistance with ordering
these options please contact the Sales department of Teledyne – Advanced Pollution Instruments
at:
TEL: 626-961-9221
TEL: 626-934-1500
FAX: 626-961-2538
WEB SITE: www.teledyne-ai.com
5.1. Rack Mount Kits (Options 20a, 20b & 21)
Option Number Description
OPT 20A Rack mount brackets with 26 in. chassis slides.
OPT 20B Rack mount brackets with 24 in. chassis slides.
OPT 21 Rack mount brackets only
Each of these options, permits the Analyzer to be mounted in a standard 19" x 30" RETMA rack.
5.2. Current Loop Analog Outputs (Option 41)
This option adds isolated, voltage-to-current conversion circuitry to the analyzer’s analog outputs.
This option may be ordered separately for any of the analog outputs, it can be installed at the
factory or added later. Call Teledyne Instruments sales for pricing and availability.
The current loop option can be configured for any output range between 0 and 20 mA.
Information on calibrating or adjusting these outputs can be found in Section 6.9.4.9.
Figure 5-1: Current Loop Option Installed on the Motherboard
04584 Rev A1 37
Page 49
Model GFC7000E Instruction Manual Optional Hardware and Software
5.3. Expendable Kits (Options 42C, 42D and 43)
OPTION NUMBER DESCRIPTION
OPT 42C 1 year’s supply of replacement of 47mm dia. particulate filters
OPT 42D 1 full replacement’s volume of indicating soda-lime for the external CO
scrubber included with options 51 & 53 ( approximate active lifetime: 1
year)
OPT 43 Options 42 C & 42D
2
5.4. Calibration Valves Options
There are four available options involving Zero/Span/Shutoff valves. From an operational and
software standpoint, all of the options are the same, only the source of the span and zero gases
are different.
5.4.1. Zero/Span/Shutoff Valve (Option 50)
This option requires that both zero air and span gas be supplied from external sources. It is
specifically designed for applications where span gas will be supplied from a pressurized bottle of
calibrated CO
proper flow rate is maintained. An internal vent line, isolated by a shutoff valve ensures that the
gas pressure of the span gas is reduced to ambient atmospheric pressure. normally zero air would
be supplied from zero air module such as a Teledyne Instruments Model 701.
gas. A critical flow control orifice, internal to the instrument ensures that the
2
In order to ensure that span gas does not migrate backwards through the vent line and alter the
concentration of the span gas, a gas line not less than 2 meters in length should be attached to
the vent span outlet on the rear panel of the analyzer. To prevent the buildup of back pressure,
this vent line should not be greater than 10 meters in length.
The following table describes the state of each valve during the analyzer’s various operational
modes.
Table 5-1: Zero/Span Valve Operating States for Options 50 & 51
MODE VALVE CONDITION VALVE PORT CONNECTION
(Fig. 5-2)
Sample/Cal Open to SAMPLE inlet 3 Æ 2
SAMPLE
(Normal State)
ZERO CAL
SPAN CAL
Zero/Span Open to ZERO AIR inlet 3 Æ 2
Shutoff Valve Closed N/A
Sample/Cal Open to zero/span inlet 1 Æ 2
Zero/Span Open to ZERO AIR inlet 3 Æ 2
Shutoff Valve Closed N/A
Sample/Cal Open to ZERO/SPAN inlet 1 Æ 2
Zero/Span Open to SPAN GAS inlet 1 Æ 2
Shutoff Valve Open to PRESSURE SPAN
Inlet
1 Æ 2
The minimum span gas flow rate required for this option is 800 cm3/min.
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V
The state of the zero/span valves can also be controlled:
• Manually from the analyzer’s front panel by using the SIGNAL I/O controls located under
the DIAG Menu (Section 6.9.2),
• By activating the instrument’s AutoCal feature (Section 7.6),
• Remotely by using the external digital control inputs (Section 6.13.1.2 and Section 7.5.2),
or
• Remotely through the RS-232/485 serial I/O ports (see Appendix A-6 for the appropriate
commands).
SAMPLE GAS
EXHAUST GAS
Scrubber
2
(Opt 53 Only)
external CO
INSTRUMENT CHASSIS
INLET
OUTLET
PURGE GAS
INLET
ENT SPAN
OUTLET
PRESSURE
SPAN INLET
IZS INLE T
FLOW / PRESSURE
SENSOR PCA
FLOW
SENSOR
SHUT OFF
VALVE
1 2
PUMP
Purge Gas
Pressure
Control Assy
SAMPLE
PRESSURE
SENSOR
Flow Orifice
Sample Gas Critic al
Purge Gas
Flow Control
Orifice
SAMPLE CHAMBER
ZERO/SPAN
VALVE
2
1
3
SAMPLE /CAL
3
2
1
VALVE
GFC Wheel
Motor
GFC Motor
Heat Sync
GFC Wheel
PARTICULATE
FILTER
Housing
Figure 5-2: Internal Pneumatic Flow – Zero/Span/Shutoff Valves OPT 50 & 51
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Model GFC7000E Instruction Manual Optional Hardware and Software
5.4.2. Zero/Span/Shutoff with External CO2 Scrubber
(Option 51)
Option 51 is operationally and pneumatically identical to Option 50 above (see section 5.4.1),
except that the zero air is generated by an externally mounted zero air scrubber filled with
indicating soda-lime that changes color from white to pink as it becomes saturated.
5.4.3. Zero/Span Valve (Option 52)
This valve option is intended for applications where zero air is supplied by a zero air generator like
the Teledyne Instruments Model 701 and span gas are being supplied by Gas Dilution Calibrator
Like the Teledyne Instruments Model 700 or 702. Internal zero/span and sample/cal valves
control the flow of gas through the instrument, but because the calibrator limits the flow of span
gas no shutoff valve is required.
In order to ensure that span gas does not migrate backwards through the vent line and alter the
concentration of the span gas, a gas line not less than 2 meters in length should be attached to
the vent span outlet on the rear panel of the analyzer. To prevent the buildup of back pressure,
this vent line should not be greater than 10 meters in length.
The following table describes the state of each valve during the analyzer’s various operational
modes.
Table 5-2: Zero/Span Valve Operating States for Options 52 & 53
Mode Valve Condition Valve Port Connection
(Fig. 5-2)
SAMPLE
(Normal State)
ZERO CAL
SPAN CAL
Sample/Cal Open to SAMPLE inlet 3 Æ 2
Zero/Span Open to ZERO AIR inlet 3 Æ 2
Sample/Cal Open to zero/span inlet 1 Æ 2
Zero/Span Open to ZERO AIR inlet 3 Æ 2
Sample/Cal Open to ZERO/SPAN inlet 1 Æ 2
Zero/Span Open to SPAN GAS inlet 1 Æ 2
The minimum span gas flow rate required for this option is 800 cm3/min.
The state of the zero/span valves can also be controlled:
• Manually from the analyzer’s front panel by using the SIGNAL I/O controls located under
the DIAG Menu (Section 6.9.2),
• By activating the instrument’s AutoCal feature (Section 7.6),
• Remotely by using the external digital control inputs (Section 6.13.1.2 and Section 7.5.2),
or
• Remotely through the RS-232/485 serial I/O ports (see Appendix A-6 for the appropriate
commands).
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V
SAMPLE GAS
EXHAUST GAS
Scrubber
2
( Optio n 53 Only)
External CO
INSTRUMENT CHASSIS
INLET
OUTLET
PURGE GAS
INLET
ENT SPAN
OUTLET
PRESSURE
SPAN INLET
IZS INLE T
FLOW / PRESSURE
SENSOR PCA
FLOW
SENSOR
PUMP
Purge Gas
Pressure
Control Assy
PRESSURE
SAMPLE
SENSOR
Flow Orifice
Sample Gas Critic a l
Purge Gas
Flow Control
Orifice
SAMPLE CHAMBER
ZERO/SPAN
VALVE
2
1
3
3
2
1
SAMPLE /CAL
GFC Wheel
Motor
VALVE
GFC Motor
Heat Sync
GFC Wheel
PARTICULATE
FILTER
Housing
Figure 5-3: Internal Pneumatic Flow – Zero/Span OPT 52 & 53
5.4.4. Zero/Span Valve with External CO2 Scrubber (Option 53)
Option 53 is operationally and pneumatically identical to Option 52 above (see Section 5.4.3),
except that the zero air is generated by an externally mounted zero air scrubber filled with
indicating soda-lime that changes color from white to pink as it becomes saturated.
5.5. Communication Options
5.5.1. RS232 Modem Cable (Option 60)
This option consists of a cable to connect the analyzer’s COM1 port to a computer, a code
activated switch or any other communications device that is equipped with a DB-9 male
connector. The cable is terminated with two DB-9 female connectors, one of which fits the
analyzer’s COM1 port.
Some older computers or code activated switches with a DB-25 serial connector will need a
different cable or an appropriate adapter.
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5.5.2. RS-232 Multidrop (Option 62)
The multidrop option is used with any of the RS-232 serial ports to enable communications of
several analyzers with the host computer over a chain of RS-232 cables. The option consists of a
small box, which can be attached to the analyzer, with a termination switch, a power connector
and two serial ports, one incoming from the analyzer (cable supplied) and one outgoing (requires
additional cable) to the next analyzer’s multi-drop box. One Option 62 is required per analyzer.
The first incoming port on the first box connects to the host computer and the outgoing port on
the last multi-drop box needs to be terminated. Setup and user instructions are covered in the
Teledyne Instruments’ multi-drop manual, part number 021790000.
5.5.3. Ethernet (Option 63)
The Ethernet option allows the analyzer to be connected to any Ethernet local area network (LAN)
running TCP/IP. The local area network must have routers capable of operating at 10BaseT. If
Internet access is available through the LAN, this option also allows communication with the
instrument over the public Internet.
When installed, this option is electronically connected to the instrument’s COM2 serial port making
that port no longer available for RS-232/RS-485 communications through the COM2 connector on
the rear panel. The option consists of a Teledyne Instruments designed Ethernet card (Figure 5-
4), which is mechanically attached to the instrument’s rear panel. A 7-foot long, CAT-5 network
cable terminated at both ends with standard RJ-45 connectors is included as well. Maximum
communication speed is limited by the RS-232 port to 115.2 kBaud.
Figure 5-4: MGFC7000E Ethernet Card and rear panel With Ethernet Installed
5.6. Additional Manuals
5.6.1. Printed Manuals (Option 70)
Additional printed copies of this manual are available from Teledyne Instruments
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Model GFC7000E Instruction Manual Optional Hardware and Software
5.6.2. Manual on CD (Part number 045840200)
This operators manual is also available on CD. The electronic document is stored in Adobe
Systems Inc. Portable Document Format (PDF) and is viewable with Adobe Acrobat Reader
software, downloadable for free at http://www.adobe.com/
The CD version of the manual has many advantages:
• Fully searchable text.
• Hypertext links for figures, tables, table of contents and embedded references for quick
access of individual manual portions.
• A list of thumbnails, chapters and sections displayed at the left of the text.
• Internet links embedded in the manual will take you to the corresponding web site
(requires an internet connection).
®
5.7. Extended Warranty (Options 92 & 93)
Two options are available for extending Teledyne Instruments’ standard warranty (Section 2.3).
Both options have to be specified upon ordering the analyzer.
Option Number Description
OPT 92 Extends warranty to cover a two (2) year period from the date of
purchase.
OPT 93 Extends warranty to cover a five (5) year period from the date of
purchase.
5.8. Dilution Ratio Option
The Dilution Ration Option is a software option that is designed for applications where the Sample
gas is diluted before being analyzed by the Model GFC7000E. Typically this occurs in Continuous
Emission Monitoring (CEM) applications where the quality of gas in a smoke stack is being tested
and the sampling method used to remove the gas from the stack dilutes the gas.
Once the degree of dilution is known, this feature allows the user to add an appropriate scaling
factor to the analyzer’s CO
concentration values displayed on the instrument’s Front Panel Display and reported via the
Analog and Serial Outputs reflect the undiluted values.
Instructions for using the dilution ratio option can be found in Section 6.7.7..
concentration calculation so that the Measurement Range and
2
5.9. Maintenance Mode Switch
API’s instruments can be equipped with an switch that places the instrument in maintenance
mode. When present, the switch accessed by opening the hinged front panel and is located on
the rearward facing side of the display/keyboard driver PCA; on the left side; near the particulate
filter.
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Model GFC7000E Instruction Manual Optional Hardware and Software
When in maintenance mode the instrument ignores all commands received via the COMM ports
that alter the operation state of the instrument This includes all calibration commands, diagnostic
menu commands and the reset instrument command. the instrument continues to measure
concentration and send data when requested.
This option is of particular use for instruments connected to multidrop or Hessen protocol
networks.
5.10. Second Language Switch
API’s instruments can be equipped with switch that activates an alternate set of display message
in a language other than the instruments default language. When present, the switch accessed by
opening the hinged front panel and is located on the rearward facing side of the display/keyboard
driver PCA; on the right side.
To activate this feature, the instrument must also have a specially programmed Disk on Chip
containing the second language.
User Notes
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Model GFC7000E Instruction Manual Operating Instructions
6. OPERATING INSTRUCTIONS
To assist in navigating the analyzer’s software, a series of menu trees can be found in Appendix
A-1 of this manual.
NOTES
The flow charts appearing in this section contain typical representations of the
analyzer’s display during the various operations being described. These representations
may differ slightly from the actual display of your instrument.
The ENTR key may disappear if you select a setting that is invalid or out of the allowable
range for that parameter, such as trying to set the 24-hour clock to 25:00:00. Once you
adjust the setting to an allowable value, the ENTR key will re-appear.
6.1. Overview of Operating modes
The MGFC7000E software has a variety of operating modes. Most commonly, the analyzer will be
operating in SAMPLE mode. In this mode, a continuous read-out of the CO
displayed on the front panel and output as an analog voltage from rear panel terminals,
calibrations can be performed, and TEST functions and WARNING messages can be examined.
concentration is
2
The second most important operating mode is SETUP mode. This mode is used for performing
certain configuration operations, such as for the iDAS system, the reporting ranges, or the serial
(RS-232/RS-485/Ethernet) communication channels. The SET UP mode is also used for
performing various diagnostic tests during troubleshooting.
Mode Field
SAMPLE A RANGE = 500.00 PPM CO2 400.00
<TST TST> CAL SETUP
Figure 6-1: Front Panel Display
The mode field of the front panel display indicates to the user which operating mode the unit is
currently running.
Besides SAMPLE and SETUP, other modes the analyzer can be operated in are:
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Model GFC7000E Instruction Manual Operating Instructions
Table 6-1: Analyzer Operating modes
MODE MEANING
DIAG One of the analyzer’s diagnostic modes is being utilized (see Section 6.9).
M-P CAL This is the basic, multi-point calibration mode of the instrument and is activated
by pressing the CAL key.
SAMPLE Sampling normally, flashing indicates adaptive filter is on.
SAMPLE A Indicates that unit is in SAMPLE Mode and AUTOCAL feature is activated.
SETUP1 SETUP mode is being used to configure the analyzer (CO
during this process).
SPAN CAL A Unit is performing span cal procedure initiated automatically by the analyzer’s
AUTOCAL feature.
SPAN CAL M Unit is performing span cal procedure initiated manually by the user.
SPAN CAL R Unit is performing span cal procedure initiated remotely via the RS-232, RS-4485
or digital i/o control inputs.
ZERO CAL A Unit is performing zero cal procedure initiated automatically by the analyzer’s
AUTOCAL feature.
ZERO CAL M Unit is performing zero cal procedure initiated manually by the user.
ZERO CAL R Unit is performing zero cal procedure initiated remotely via the RS-232, RS-4485
or digital I/O control inputs.
1
The revision of the Teledyne Instruments software installed in this analyzer will be displayed
following the word SETUP. E.g. “SETUP
E.0”
sampling will continue
2
Finally, the various CAL modes allow calibration of the analyzer. Because of its importance, this
mode is described separately in Chapter 7.
6.2. Sample Mode
This is the analyzer’s standard operating mode. In this mode the instrument is analyzing the gas
in the sample chamber, calculating CO
via the front panel display, the analog outputs and, if set up properly, the RS-232/485/Ethernet
ports.
A value of “XXXX” displayed in the CO2 Concentration field means that the M/R ratio is
invalid because CO2 REF is either too high(> 4950 mVDC) or too low (< 1250 VDC).
6.2.1. Test Functions
A series of test functions is available at the front panel while the analyzer is in SAMPLE mode.
These parameters provide information about the present operating status of the instrument and
are useful during troubleshooting (Section 11.1.2 ). They can also be recorded in one of the iDAS
channels (Section 6.12) for data analysis. To view the test functions, press one of the <TST TST>
keys repeatedly in either direction.
concentration and reporting this information to the user
2
NOTE
Table 6-2: Test Functions Defined
Parameter
Display
Units Meaning
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Model GFC7000E Instruction Manual Operating Instructions
Title
Range RANGE
RANGE11
RANGE2
1
Stability STABIL
CO
CO2 Measure
2
MEAS
CO
Reference CO2 REF MV
2
Measurement /
MR Ratio -
Reference
Ratio
Sample
PRES In-Hg-A
Pressure
Sample Flow
SAMPLE
FL
Sample
Temperature
Bench
Temperature
Wheel
Temperature
Box
Temperature
Photo-detector
Temp. Control
SAMP
TEMP
BENCH
TEMP
WHEEL
TEMP
BOX
TEMP
PHT
DRIVE
PPB, PPM,
UGM,
MGM
PPB, PPM
UGM,
MGM
MV
cc/min
°C
°C
°C
°C
mV
The full scale limit at which the reporting range of the
analyzer is currently set.
THIS IS NOT the Physical Range of the instrument. See
Section 6.7 for more information.
Standard deviation of CO2 concentration readings. Data
points are recorded every ten second. The calculation uses
the last 25 data points.
The demodulated, peak IR detector output during the
measure portion of the CFG Wheel cycle.
The demodulated, peak IR detector output during the
reference portion of the CFG wheel cycle.
The result of CO2 MEAS divided by CO2 REF. This ratio is
the primary value used to compute CO2 concentration. The
value displayed is not linearized.
The absolute pressure of the Sample gas as measured by a
solid state pressure sensor located inside the sample
chamber.
Sample mass flow rate. This is computed from the differential
between the pressures measured up-stream and downstream of the sample critical flow orifice pressures.
The temperature of the gas inside the sample chamber.
Optical bench temperature.
Filter wheel temperature.
The temperature inside the analyzer chassis.
The drive voltage being supplied to the thermoelectric coolers
of the IR photo-detector by the sync/demod Board.
Voltage
Slope SLOPE -
Offset OFFSET -
Test channel
TEST mV, mA
output signal
Current Time TIME -
1
Only appears when the instrument’s reporting range mode is set for DUAL or AUTO
The sensitivity of the instrument as calculated during the last
calibration activity. The SLOPE parameter is used to set the
span calibration point of the analyzer.
The overall offset of the instrument as calculated during the
last calibration activity. The OFFSET parameter is used to
set the zero point of the analyzer response.
Displays the signal level of the TEST analog output channel.
Only appears when the TEST channel has been activated.
The current time. This is used to create a time stamp on
iDAS readings, and by the AUTOCAL feature to trigger
calibration events.
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Model GFC7000E Instruction Manual Operating Instructions
1
g
To view the TEST Functions press the following Key sequence:
SAMPLE RANGE = 500.000 PPM CO2 = XXX.X
< TST TST >
CAL SETUP
RANGE
1
1
Toggle <TST TST> keys to
scroll throu
h list of functio n s
RANGE1
RANGE2
STABIL
CO2 MEAS
CO2 REF
MR RATIO
Only appears instrument is set
for DUAL or AUTO reporting
range modes
PRES
SAMP FL
SAMP TEMP
BENCH TEMP
WHEEL TEMP
BOX TEMP
PHT DRIVE
SLOPE
OFFSET
Refer to
Table 6-2
for
definitions
of these
test
functions.
TEST
TIME
Figure 6-2 Viewing MGFC7000E TEST Functions
NOTE
A value of “XXXX” displayed for any of the TEST functions indicates an out-of-range
reading or the analyzer’s inability to calculate it.
All pressure measurements are represented in terms of absolute pressure. Absolute,
atmospheric pressure is 29.92 in-Hg-A at sea level. It decreases about 1 in-Hg per 300
m gain in altitude. A variety of factors such as air conditioning and passing storms can
cause changes in the absolute atmospheric pressure.
6.2.2. Warning Messages
The most common instrument failures will be reported as a warning on the analyzer’s front panel
and through the COM ports. Section 11.1.1 explains how to use these messages to troubleshoot
problems. Section 3.2.3 shows how to view and clear warning messages.
Table 6-3 lists all warning messages for the current version of software.
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Model GFC7000E Instruction Manual Operating Instructions
Table 6-3: List of Warning Messages
MESSAGE MEANING
ANALOG CAL WARNING The instruments A/D circuitry or one of its analog outputs is not calibrated.
BENCH TEMP WARNING The Temperature of the optical bench is outside the specified limits.
BOX TEMP WARNING
CANNOT DYN SPAN
CANNOT DYN ZERO
Remote span calibration failed while the dynamic span feature was set to
turned on
Remote zero calibration failed while the dynamic zero feature was set to
turned on
Configuration was reset to factory defaults or was erased.
CONC ALRM1 WARNING
CONC ALRM2 WARNING
CONFIG INITIALIZED Configuration storage was reset to factory configuration or erased.
DATA INITIALIZED iDAS data storage was erased.
FRONT PANEL WARN Firmware is unable to communicate with the front panel.
PHOTO TEMP WARNING The temperature of the IR photometer is outside the specified limits.
REAR BOARD NOT DET
RELAY BOARD WARN
SAMPLE FLOW WARN
SAMPLE PRESS WARN
SAMPLE TEMP WARN The temperature of the sample gas is outside the specified limits.
SOURCE WARNING
SYNC WARNING The instrument is not properly tracking the rotation of the Gas Filter
SYSTEM RESET The computer was rebooted.
WHEEL TEMP WARNING The Gas Filter Correlation wheel temperature is outside the specified limits.
Concentration alarm 1 is enabled and the measured CO
point.
Concentration alarm 2 is enabled and the measured CO
point.
The CPU is unable to communicate with the motherboard.
The firmware is unable to communicate with the relay board.
The flow rate of the sample gas is outside the specified limits.
Sample gas pressure outside of
operational parameters.
The IR source may be faulty.
Correlation wheel.
level is ≥ the set
2
level is ≥ the set
2
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To view and clear warning messages
TEST
deactivates warning
messages
If the warning message persists
after several attempts to clear it,
the message may indicate a
real problem and not an artifact
NOTE:
of the warm-up period
SAMPLE HVPS WARNING CO2 = 0.00
TEST CAL MSG CLR SETUP
SAMPLE
< TST TST > CAL
SAMPLE
TEST CAL MSG CLR SETUP
Make sure warning mess ages are
not due to real problems.
RANGE=500.000 PPM
MSG
HVPS WARNING
CO2 = 0.00
CLR SETUP
CO2 = 0.00
MSG
activates warning
<TST TST
Press
If more than one warning is active, the
next message will take its place
Once the last warning has been
cleared, the analyzer returns to
messages.
> keys replaced with
TEST
key
CLR
to clear the current
message.
SAMPLE
mode
Figure 6-3 Viewing and Clearing MGFC7000E WARNING Messages
6.3. Calibration Mode
Pressing the CAL key switches the MGFC7000E into multi-point calibration mode. In this mode,
the user can calibrate the instrument or check the instruments calibration with the use of
calibrated zero or span gases.
If the instrument includes either the zero/span valve option or IZS option, the display will also
include CALZ and CALS keys. Pressing either of these keys also puts the instrument into
multipoint calibration mode.
• The CALZ key is used to initiate a calibration of the zero point.
• The CALS key is used to calibrate the span point of the analyzer. It is recommended that
this span calibration is performed at 90% of full scale of the analyzer’s currently selected
reporting range.
Because of their critical importance and complexity, calibration operations are described in detail
in Chapter 7 of this manual. For more information concerning the zero/span, zero/span/shutoff
and IZS valve options, see Section 5.4.
6.3.1. SETUP – PASS: Calibration Password Security
The MGFC7000E calibration functions may be password protected for to prevent inadvertent
adjustments. When the calibration password has been enabled using the PASS menu item found
under the Setup Menu (see below), the system will prompt the user for a password anytime CAL,
CALZ, CALS activated.
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Model GFC7000E Instruction Manual Operating Instructions
The default status of the calibration password is OFF. To enable the calibration password press:
CAL. PASSWORD
default st ate is
OFF
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SAMPLE ENTER SETUP PASS : 818
8 1 8
SETU P X.X
CFG DAS RNGE
SETU P X.X
OFF ENTR EXIT
SETU P X.X PASSWORD ENABLE:ON
ON ENTR EXIT
SETU P X.X PA SSWORD ENABLE: ON
ON ENTR EXIT
PRIMARY SETUP MENU
PASS
CAL. PASSWORD ENABLE: OFF
ENTR
EXIT
CLK MORE EXIT
ENTR accepts
displayed
password value
EXIT returns to
SAMPLE
display
Toggles
password
status On/Off
ENTR
accepts
the change
EXIT
ignores
the change
If the calibration password (101) is enabled, the following keypad sequence will be required to
enter one of the calibration modes:
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
Prompts
password
number
Press
individual
keys to set
101
< TST TST >
SAMPLE
0 0 0
SAMPLE ENTER SETUP PASS : 0
1 0 1 ENTR EXIT
M-P CAL RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > ZERO
CAL CALZ CALS
ENTER SETUP PASS : 0
Continue calibration process …
SETUP
ENTR
EXIT
CONC
EXIT
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6.4. SETUP Mode
The SETUP mode contains a variety of choices that are used to configure the analyzer’s hardware
and software features, perform diagnostic procedures, gather information on the instruments
performance and configure or access data from the internal data acquisition system (iDAS). For a
visual representation of the software menu trees, refer to Appendix A-1.
The areas access under the Setup mode are:
Table 6-4: Primary Setup Mode Features and Functions
MODE OR FEATURE
Analyzer Configuration CFG
Auto Cal Feature ACAL
Internal Data Acquisition
(iDAS)
Analog Output Reporting
Range Configuration
Calibration Password
Security
Internal Clock
Configuration
Advanced SETUP features MORE
KEYPAD
LABEL
DAS Used to set up the iDAS system and view recorded data 6.12
RNGE
PASS Turns the calibration password feature ON/OFF 6.3.1
CLK Used to Set or adjust the instrument’s internal clock 6.6
Table 6-5: Secondary Setup Mode Features and Functions
MODE OR FEATURE
External Communication
Channel Configuration
System Status Variables VARS
System Diagnostic
Features
CO
Concentration Alarms ALRM
2
KEYPAD
LABEL
COMM
DIAG
DESCRIPTION
Lists key hardware and software configuration
information
Used to set up an operate the AutoCal feature.
Only appears if the analyzer has one of the internal
valve options installed
Used to configure the output signals generated by the
instruments Analog outputs.
This button accesses the instruments secondary setup
menu
DESCRIPTION
Used to set up and operate the analyzer’s various
external I/O channels including RS-232; RS 485,
modem communication and/or Ethernet access.
Used to view various variables related to the
instruments current operational status
Used to access a variety of functions that are used to
configure, test or diagnose problems with a variety of
the analyzer’s basic systems
Used to activate the analyzer’s two gas concentration
status alarms and set the alarm limits
MANUAL
SECTION
6.5
7.6
6.7
See
Table 6-5
MANUAL
SECTION
6.10 &
6.13
6.8
6.9
6.11
NOTE
Any changes made to a variable during one of the following procedures is not
acknowledged by the instrument until the ENTR Key is pressed
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Model GFC7000E Instruction Manual Operating Instructions
play
1
If the EXIT key is pressed before the ENTR key, the analyzer will beep alerting the u ser
that the newly entered value has been lost.
6.4.1. SETUP Mode Password Security
Whenever the Model GFC7000E’s SETUP mode is activated the instrument will prompt the user to
enter a security password. The default password is 818. This allows access to all of the
instruments basic functions and operating modes as well as some of its more powerful diagnostic
tools and variables.
The analyzer will automatically insert 818 into the password prompt field. Simply press ENTR to
proceed.
Other password levels exist allowing access to special diagnostic tools and variables used only for
specific and rarely needed troubleshooting and adjustment procedures. They may be made
available as needed by Teledyne Instruments’ Customer Service department.
6.5. SETUP – CFG: Viewing the Analyzer’s
Configuration Information
Pressing the CFG key displays the instrument configuration information. This display lists the
analyzer model, serial number, firmware revision, software library revision, CPU type and other
information. Use this information to identify the software and hardware when contacting customer
service. Special instrument or software features or installed options may also be listed here.
SAMPLE* RANGE = 500.000 PPB CO2 =X.XXX
< TST TST > CAL SETUP
SAMPLE ENTER SETUP PASS : 818
Press NEXT of PREV to move back
and forth through the following list
of Configuration information:
• MODEL NAME
• SERIAL NU MBER
• SOFTWARE REVISION
• LIBRARY REVISION
•
iCHIP SOFTWAR E R E VISION
•
HESSEN PROTOCOL REVISION
•
ACTIVE SPECIAL SOFTWARE
OPTIONS
• CPU TYPE
• DATE FACTORY CONFIGURATION
SAVED
1
1
1
8 1 8 ENTR EXIT
SAMPLE PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SAMPLE GFC7000E CO2 ANALYZER
NEXT PREV EXIT
Press EXIT at
any time to
return to the
SAMPLE dis
Press EXIT at
any time to
return to
SETUP menu
Only appears if relevant option of Feature is active.
04584 Rev A1 53
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Model GFC7000E Instruction Manual Operating Instructions
6.6. SETUP – CLK: Setting the Internal Time-of-Day
Clock
The MGFC7000E has a time of day clock that supports the AutoCal timer, time of day TEST
function, and time stamps on most COM port messages. To set the time-of-day, press:
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SETUP
Enter Current
Time-of-Day
SETUP X.X
1 2 : 0 0
SETUP X.X3 TIME:
1 2 : 0 0
TIME: 12:00
ENTR EXIT
12:00
SAMPLE
8 1 8
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS
SETUP X.X
TIME DATE EXIT
ENTR
EXIT
SETUP X.X TIME-OF-DAY CLOCK
TIME DATE EXIT
ENTER SETUP PASS : 818
CLK
TIME-OF-DAY CLOCK
SETUP X.X DATE: 01-J AN-02
0 1 JAN 0 2
SETUP X.X DAT E:
0 1 JAN 0 2 ENTR EXIT
ENTR
EXIT
MORE EXIT
ENTR EXIT
01-JAN-02
Enter Current
Date-of-Year
EXIT
SETUP X.X
CFG DAS RNGE PASS CLK MORE
PRIMARY SETUP MENU
EXIT
to the main
SAMPLE
returns
display
04584 Rev A1 54
Page 66
Model GFC7000E Instruction Manual Operating Instructions
In order to compensate for CPU clocks which run faster or slower, you can adjust a variable called
CLOCK_ADJ to speed up or slow down the clock by a fixed amount every day. To change this
variable, press:
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SAMPLE ENTER SETUP PASS : 818
8 1 8 ENTR EXIT
SETUPX.X 1 ) CONC_PRECISION = 3
PREV NEXT JUMP ED IT PR N T EXIT
Continue to press
NEXT
until …
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X
COMM VARS DIAG EXIT
SETUP X.X 0 ) DAS_HOLD_OFF=15.0 Minutes
NEXT JUMP EDIT PRNT EXIT
SECONDARY S ETU P ME NU
SETUP X.X 4) CLOCK_ADJ=0 Sec/Day
PREV JUMP EDIT PRNT EXIT
SETUP X.X CLOCK_ADJ:0 Sec/Day
+ 0 0 ENTR
Enter sign and number of sec o nd s pe r
day the clock gains (-) or loses (+).
SETUP X.X 4) CLOCK_ADJ=0 Sec/Day
PREV NEXT JUMP EDIT PRNT EXIT
EXIT
3x
to the main SAMPLE display
EXIT
returns
04584 Rev A1 55
Page 67
Model GFC7000E Instruction Manual Operating Instructions
l
d
d
6.7. SETUP – RNGE: Analog Output Reporting Range
Configuration
The analyzer has three active analog output signals, accessible through a connector on the rear
panel.
ANALOG OUT
SO
concentration
2
outputs
A1 A2 A3 A4
+ - + - + - + -
Test Channe
Not Used
LOW range when
DUAL mode is selecte
HIGH range when
DUAL mode is selecte
Figure 6-4: Analog Output Connector Pin Out
All three outputs can be configured either at the factory or by the user for full scale outputs of 0.1
VDC, 1VDC, 5VDC or 10VDC. Additionally A1 and A2 may be equipped with optional 0-20 mADC
current loop drivers and configured for any current output within that range (e.g. 0-20, 2-20, 420, etc.). The user may also adjust the signal level and scaling of the actual output voltage or
current to match the input requirements of the recorder or datalogger (see Section 6.9.4).
The A1 and A2 channels output a signal that is proportional to the CO
concentration of the
2
sample gas. Several modes are available which allow them to operate independently or be slaved
together (see Section 6.7). The user may also select between a variety of reporting range spans
(see Sections 6.7.3, 6.7.4 and 6.7.5).
EXAMPLE:
A1 OUTPUT: Output Signal = 0-5 VDC representing 0-1000 ppm concentration values
A2 OUTPUT: Output Signal = 0 – 10 VDC representing 0-500 ppm concentration values.
The output, labeled A3 is special. It can be set by the user (see Section 6.9.9) to output several
of the test functions accessible through the <TST TST> keys of the units sample display.
Output A4 is not available on the Model GFC7000E analyzer.
6.7.1. Physical Range versus Analog Output Reporting Ranges
Functionally, the Model GFC7000E Gas Filter Correlation CO2 Analyzer has one hardware Physical
Range that is capable of determining CO
architecture improves reliability and accuracy by avoiding the need for extra, switchable, gainamplification circuitry. Once properly calibrated, the analyzer’s front panel will accurately report
concentrations along the entire span of its 50 ppb and 2 000 ppm physical range.
Because, most applications use only a small part of the analyzer’s physical range, the width of the
Model GFC7000E’s physical range can create data resolution problems for most analog recording
devices. For example, in an application where the expected concentration of CO
04584 Rev A1 56
concentrations between 50 ppb and 2 000 ppm. This
2
is typically less
2
Page 68
Model GFC7000E Instruction Manual Operating Instructions
than 500 ppm, the full scale of expected values is only 25% of the instrument’s 2 000 ppm
physical range. Unmodified, the corresponding output signal would also be recorded across only
25% of the range of the recording device.
The MGFC7000E solves this problem by allowing the user to select a scaled reporting range for the
analog outputs that only includes that portion of the physical range relevant to the specific
application. Only the reporting range of the analog outputs is scaled, the physical range of the
analyzer and the readings displayed on the front panel remain unaltered.
6.7.2. Reporting Range Modes
The MGFC7000E provides three analog output range modes to choose from.
• Single range (SNGL) mode sets a single maximum range for the analog output. If single
range is selected (see Section 6.7.3) both outputs are slaved together and will represent
the same measurement span (e.g. 0-50 ppm), however their electronic signal levels may
be configured for different ranges (e.g. 0-10 VDC vs. 0-.1 VDC – See Section 6.9.4.1).
Dual range (DUAL) allows the A1 and A2 outputs to be configured with different
measurement spans (see Section 6.7.4) as well as separate electronic signal levels (see
Section 6.9.4.1).
• Auto range (AUTO) mode gives the analyzer to ability to output data via a low range and
high range. When this mode is selected (see Section 6.7.5) the MGFC7000E will
automatically switch between the two ranges dynamically as the concentration value
fluctuates.
Range status is also output via the External Digital I/O Status Bits (see Section 6.13.1.1).
To select the Analog Output Range Type press:
04584 Rev A1 57
Page 69
Model GFC7000E Instruction Manual Operating Instructions
Only one of the
range modes may
be active at any
time.
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SAMPLE
SETUP X.X
CFG DAS
SETUP X.X RANGE CONTROL MENU
MODE
SETUP X.X RANGE MODE: SNGL
SNGL DUAL AUTO ENTR EXIT
Go To
Section
6.7.3
ENTER SETUP PASS : 818
8 1 8
PASS CLK MORE EXIT
RNGE
SET UNIT EXIT
Go To
Section
6.7.4
ENTR
SETUP
EXIT
Go To
Section
6.7.5
Returns
EXIT
to the Main
SAMPLE
Display
NOTE
Upper span limit setting for the individual range modes are shared. Resetting the span
limit in one mode also resets the span limit for the corresponding range in the other
modes as follows:
SNGL DUAL AUTO
Range ÅÆ Range1 ÅÆ Low Range
Range2 ÅÆ High Range
6.7.3. Single Range mode (SNGL)
This is the default reporting range mode for the analyzer. In single range mode both A1 and A2
are set to the same reporting range. This reporting range can be any value between 50 ppb and 2
000 ppm.
While the two outputs always have the same reporting range, the span, signal offset and scaling
of their electronic signals may be configured for differently (e.g., A1 = 0-10 V; A2 = 0-0.1 V).
See Section 6.9.4 for instructions on adjusting these parameters.
To select SNGLE range mode and to set the upper limit of the range, press:
04584 Rev A1 58
Page 70
Model GFC7000E Instruction Manual Operating Instructions
SAMPLE* RANGE = 500.000 PPM CO2 X.XXX
< TST TST > CAL SETUP
SAMPLE
8 1 8
ENTER SETUP PASS : 818
ENTR
EXIT
SETUP C.3 RANGE MODE:
SNGL DUAL AUTO ENTR EXIT
SNGL
SETUP C.3 PRIMARY SETUP MENU
CFG DAS
SETUP C.3 RANGE CONTROL MENU
MODE SET UNIT EXIT
SET UP C.3 RANGE MODE:
SNGL DUAL AUTO ENTR EXIT
RNGE
PASS CLK MORE EXIT
SNGL
SETUP C.3 RANGE CONTROL MENU
MODE SET UNIT EXIT
SETUP C.3 RANGE:
0 0 5
SETUP C.3 RANGE CONTROL MENU
MODE SET UNIT EXIT
500.0 Conc
0 0 .0
ENTR
EXIT
EXIT
x 2 returns
to the main
SAMPLE
display
04584 Rev A1 59
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Model GFC7000E Instruction Manual Operating Instructions
6.7.4. Dual Range Mode (DUAL)
Selecting Dual Range mode allows the A1 and A2 outputs to be configured with different
reporting ranges. The analyzer software calls these two ranges low and high. The low range
setting corresponds with the analog output labeled A1 on the Rear Panel of the instrument. The
high Range Setting corresponds with the A2 output. While the software names these two ranges
low and high, they do not have to be configured that way. For example: The low range can be set
for a span of 0-1000 ppm while the high range is set for 0-500 ppm.
In DUAL range mode the RANGE test function displayed on the front panel will be replaced by
two separate functions:
• RANGE1: The range setting for the A1 output.
• RANGE2: The range setting for the A2 output.
To set the ranges press following keystroke sequence
.
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SAMPLE ENTER SETUP PASS : 818
8 1 8
SETUP X.X
CFG DAS
SETUP X.X RANGE CONTROL MENU
SET UNIT EXIT
MODE
SETUP X.X RANGE MODE:
SNGL
DUAL
PRIMARY SETUP MENU
PASS CLK MORE EXIT
RNGE
SNGL
AUTO ENTR EXIT
ENTR
SETUP
EXIT
SETUP X.X RANGE MO DE:
SNGL DUAL AUTO ENTR EXIT
SETUP X.X
MO DE
SET
SETUP X.X LOW RANGE: 500.0 Conc
0 0 1 0 0 .0 ENTR EXIT
SETUP X.X
0 0 5 0 0 .0 ENTR EXIT
SETUP X.X RANGE CONTROL MENU
MO DE SET UNIT EXIT
RANGE CONTROL MENU
UNIT EXIT
HIGH RANGE: 500.0 Conc
DUAL
Toggle the
Numeral Keys
to set the upper
limit of each
range.
Returns
EXIT
to the Main
SAMPLE Display
When the instrument’s range mode is set to DUAL the concentration field in the upper right hand
corner of the display alternates between displaying the low range value and the high range value.
The concentration currently being displayed is identified as follows: C1 = Low (or A1) and C2 =
High (or A2).
NOTE
In DUAL range mode the LOW and HIGH ranges have separate slopes and offsets for
computing CO2 concentration.
The two ranges must be independently calibrated.
04584 Rev A1 60
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Model GFC7000E Instruction Manual Operating Instructions
6.7.5. Auto Range Mode (AUTO)
In AUTO range mode, the analyzer automatically switches the reporting range between two user-
defined ranges (low and high). The unit will switch from low range to high range when the CO
concentration exceeds 98% of the low range span. The unit will return from high range back to
low range once both the CO
concentration falls below 75% of the low range span.
2
In AUTO Range mode the instrument reports the same data in the same range on both the A1
and A2 outputs and automatically switches both outputs between ranges as described above.
Also, the RANGE test function displayed on the front panel will automatically switch to show
which range is in effect.
The high/low range status is also reported through the external, digital status bits (Section
6.13.1.1).
To set individual ranges press the following keystroke sequence.
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SETUP X.X RANGE MODE: AUTO
SNGL DUAL AUTO ENTR EXIT
2
SAMPLE
8 1 8
SETUP X.X
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X RANGE CONTROL MENU
MODE
SETUP X.X RANGE MODE: SNGL
SNGL DUAL AUT O ENTR EXIT
ENTER SETUP PASS : 818
PRIMARY SETUP MENU
SET UNIT EXIT
ENTR
EXIT
SETUP X.X RANGE CONTROL MENU
SET
MODE
SETUP X.X LOW RANGE: 500.0 Conc
0 0 5 0 0 .0 ENTR EXIT
SETUP X.X HIGH RANGE: 500.0 Conc
0 0 5 0 0 .0 ENTR EXIT
UNIT EXIT
EXIT x 2 returns
to the main
SAMPLE display
Toggle the numeral
keys to set the
LOW and HIGH
range value.
ENTR accepts the
new setting, EXIT
ignores the new
setting.
CAUTION
In AUTO range mode the LOW and HIGH ranges have separate slopes and offsets for
computing CO2 concentration.
The two ranges must be independently calibrated.
NOTE
Avoid accidentally setting the low range of the instrument with a higher span limit than
the high range. This will cause the unit to stay in the low reporting range perpetually
and defeat the function of the AUTO range mode.
04584 Rev A1 61
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Model GFC7000E Instruction Manual Operating Instructions
6.7.6. Range Units
The MGFC7000E can display concentrations in parts per billion (10
million (10
meter (mg/m
6
mols per mol, PPM), micrograms per cubic meter (µg/m3, UG), milligrams per cubic
3
, MG) or percent (volume CO2/volume sample gas, %). Changing units affects all of
9
mols per mol, PPB), parts per
the display, analog outputs, COM port and iDAS values for all reporting ranges regardless of the
analyzer’s range mode.
NOTE
Concentrations displayed in mg/m3 and ug/m3 use 0°C, 760 mmHg for Standard
Temperature and Pressure (STP). Consult your local regulations for the STP used by
your agency.
Conversion factors from volumetric to mass units are:
CO2: ppb x 1.96 = µg/m3; ppm x 1.96 = mg/m3
To change the concentration units:
SAMPLE RANGE = 500.00 PPB CO2=X.XXX
< TST TST > CAL SETUP
SAMPLE
8 1 8 ENTR EXIT
ENTER SETUP PASS : 818
SETUP X.X
CFG DAS
PRIMARY SETUP MENU
RNGE
PASS CLK MORE EXIT
EXIT returns
to the main menu.
ENTR
accepts
Select the preferred
concentration unit.
SETUP X.X RANGE CONTROL MENU
MODE SET UNIT EXIT
SETUP X.X CONC UNITS: PPM
PPM PPB
UGM
MGM %
ENTER
EXIT
the new unit,
EXIT
SET UP X.X
PPM PPB
UGM
CONC UNITS: %
MGM % ENTER EXIT
to the
menu.
returns
SETUP
NOTE
Once the units of measurement have been changed the unit MUST be recalibrated, as
the “expected span values” previously in effect will no longer be valid. Simply entering
new expected span values without running the entir e calibration routine is not
sufficient.
04584 Rev A1 62
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Model GFC7000E Instruction Manual Operating Instructions
6.7.7. Dilution Ratio
The dilution ratio is a software option that allows the user to compensate for any dilution of the
sample gas before it enters the sample inlet. Using the dilution ratio option is a 4-step process:
1. Select reporting range units: Follow the procedure in Section 6.7.6.
2. Select the range: Use the procedures in Section 6.7.2 – 6.7.5. Make sure that the SPAN value
entered is the maximum expected concentration of the undiluted calibration gas and that the
span gas is either supplied through the same dilution inlet system as the sample gas or has an
appropriately lower actual concentration. For example, with a dilution set to 100, a 10 ppm
gas can be used to calibrate a 1000 ppm sample gas if the span gas is not routed through the
dilution system. On the other hand, if a 1000 ppm span gas is used, it needs to pass through
the same dilution steps as the sample gas.
3. Set the dilution factor as a gain (e.g., a value of 20 means 20 parts diluting gas and 1 part of
sample gas):
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
ENTER SETUP PASS : 818
PRIMARY SETUP MENU
RNGE
PASS CLK MORE EXIT
RANGE CONTROL MENU
DIL
EXIT
DIL FACTOR: 1.0 GAIN
ENTR
0 .0
ENTR EXIT
ENTR
EXIT
EXIT
EXIT
ignores the
new setting.
ENTR
accepts the
new setting.
DIL only appears
if the dilution ratio
option has been
installed
Toggle these keys to set the dilution
This is the number by which the
analyzer will multiply the CO
concentrations of the gas passing
through the reaction cell.
factor.
2
SAMPLE
8 1 8
SETUP C.3
CFG DAS
SETUP C.3
MODE SET UNIT
SETUP C.3
0 0 0 1 .0
SETUP C.3 DIL FACTOR: 20.0 GAIN
0 0 2
The analyzer multiplies the measured gas concentrations with this dilution factor and displays the
result.
NOTE
Once the above settings have been entered, the instrument needs to be recalibrated
using one of the methods discussed in Chapter 7.
04584 Rev A1 63
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Model GFC7000E Instruction Manual Operating Instructions
6.8. SETUP – VARS: Using the Internal Variables
The MGFC7000E has several-user adjustable software variables, which define certain operational
parameters. Usually, these variables are automatically set by the instrument’s firmware, but can
be manually re-defined using the VARS menu. Table 6-6 lists all variables that are available within
the 818 password protected level.
Table 6-6: Variable Names (VARS) Revision B.3
No. Variable Description Allowed Values
Changes the internal data acquisition system (iDAS)
0 DAS_HOLD_OFF
hold-off time, which is the duration when data are
not stored in the iDAS because the software
considers the data to be questionable. That is the
case during warm-up or just after the instrument
returns from one of its calibration modes to SAMPLE
mode. DAS_HOLD_OFF can be disabled entirely in
each iDAS channel.
Can be between
0.5 and 20
minutes
Default=15 min.
1 CONC_PRECISION
2 DYN_ZERO
3 DYN_SPAN
4 CLOCK_ADJ
Allows the user to set the number of significant digits
to the right of the decimal point display of
concentration and stability values.
Dynamic zero automatically adjusts offset and slope
of the CO2 response when performing a zero point
calibration during an AutoCal (Chapter 7).
Dynamic span automatically adjusts slope and slope
of the CO
calibration during an AutoCal (Chapter 7).
Note that the DYN_ZERO and DYN_SPAN features
are not allowed for applications requiring EPA
equivalency.
Adjusts the speed of the analyzer’s clock. Choose the
+ sign if the clock is too slow, choose the - sign if
the clock is too fast.
response when performing a zero point
2
AUTO, 1, 2, 3, 4
Default=AUTO
ON/OFF
ON/OFF
-60 to +60 s/day
04584 Rev A1 64
Page 76
Model GFC7000E Instruction Manual Operating Instructions
To access and navigate the VARS menu, use the following key sequence.
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SAMPLE ENTER SETUP PASS : 818
8 1 8 ENTR EXIT
SETUP X.X
CFG DAS RNGE PASS CLK
SETUP X.X
COMM VARS DIAG ALRM EXIT
SETUP X.X 0 ) DAS_HOLD_OFF=15.0 Minutes
NEXT JUMP EDIT PRNT EXIT
SETUP X.X 6) CONC_PRECUISION : 3
PREV
PRIMARY SETUP MENU
MORE
SECONDARY SETUP MENU
JUMP
NEXT
EDIT
EXIT
PRNT EXIT
EXIT ignores the new setting.
ENTR
SETUP X.X
1 5 .0 ENTR EXIT
SETUP X.X CONC_PR ECUISION : 3
AUTO 0 1 2 3 4 ENTR EXIT
accepts the new setting.
DAS_HOLD _OF F =15.0 Minutes
Toggle thi s keys to change setting
SETUP X.X
PREV
NEXT
SETUP X.X
PREV
NEXT
SETUP X.X 7) CLOCK_ADJ=0 Sec/Day
PREV
NEXT
4 ) DYN_ZERO=ON
JUMP
EDIT
5) DYN_SPAN=ON
JUMP
EDIT
JUMP
EDIT
PRNT EXIT
PRNT EXIT
PRNT EXIT
Toggle these keys to change setting
SETUP X.X DYN_ZERO=ON
ON ENTR EXIT
Toggle this keys to change setting
SETUP X.X DYN_SPAN=ON
ON ENTR EXIT
Toggle this keys to change setting
SETUP X.X
+ 0 0 ENTR EXIT
CLOCK_ADJ=0 Sec/Day
Toggle tese keys to change setting
04584 Rev A1 65
Page 77
Model GFC7000E Instruction Manual Operating Instructions
6.9. SETUP – DIAG: Using the Diagnostics Functions
A series of diagnostic tools is grouped together under the SETUPÆMOREÆDIAG menu. As these
parameters are dependent on firmware revision (see Menu Tree A-6 in Appendix A). The individual
parameters, however, are explained in more detail in the section indicated in Table 6-7. These
tools can be used in a variety of troubleshooting and diagnostic procedures and are referred to in
many places of the maintenance and trouble-shooting sections.
Table 6-7: GFC7000E Diagnostic (DIAG) Functions
Front Panel
DIAGNOSTIC FUNCTION AND MEANING
SIGNAL I/O: Allows observation of all digital and analog
signals in the instrument. Allows certain digital signals
such as valves and heaters to be toggled ON and OFF.
ANALOG OUTPUT: When entered, the analyzer performs
an analog output step test. This can be used to calibrate
a chart recorder or to test the analog output accuracy.
Mode
Indicator
DIAG I/O 6.9.2
DIAG AOUT 6.9.3
SECTION
ANALOG I/O CONFIGURATION: the signal levels of the
instruments analog outputs may be calibrated (either
individually or as a group). Various electronic
parameters such as signal span, and offset are available
for viewing and configuration.
ELECTRIC TEST: The analyzer is performing an electric
test. This test simulates IR detector signal in a known
manner so that the proper functioning of the
sync/demod board can be verified.
DARK CALIBRATION: The analyzer is performing a dark
calibration procedure. This procedure measures and
stores the inherent dc offset of the sync/demod board
electronics.
PRESSURE CALIBRATION: The analyzer records the
current output of the sample gas pressure sensor. This
value is used by the CPU to compensate the CO
2
concentration.
FLOW CALIBRATION: This function is used to calibrate
the gas flow output signals of sample gas and ozone
supply. These settings are retained when exiting DIAG.
DIAG AIO 6.9.4
DIAG
OPTIC
6.9.5
DIAG ELEC 6.9.6
DIAG PCAL 6.9.7
DIAG FCAL 6.9.8
TEST CHAN OUTPUT: Configures the A4 analog output
channel.
04584 Rev A1 66
DIAG TCHN 6.9.9
Page 78
Model GFC7000E Instruction Manual Operating Instructions
6.9.1. Accessing the Diagnostic Features
To access the DIAG functions press the following keys:
SAMPLE* RANGE = 500.00 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SAMPLE ENTER SETUP PASS : 818
8 1 8
ENTR
EXIT
DIAG ANALOG I / O CONFIGURATION
PREV
NEXT
DIAG
PREV
NEXT
ELECTRICAL TEST
ENTR EXIT
ENTR EXIT
EXIT returns
to the main
SAMPLE
display
returns
EXIT
to the PRIMARY
SETUP MENU
From this point
forward,
SECONDARY
SETUP MENU
returns
EXIT
to the
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
DIAG
NEXT ENTR EXIT
DIAG
PREV NEXT ENTR EXIT
6.9.2. Signal I/O
SIGNAL I / O
ANALOG OUTPUT
DIAG DARK CALIBRATION
PREV
NEXT
DIAG PRESSURE CALIBRATION
PREV
NEXT
DIAG
PREV
NEXT
DIAG
PREV
NEXT
FLOW CALIBRATION
TEST CHAN OUTPUT
ENTR EXIT
ENTR EXIT
ENTR EXIT
ENTR EXIT
The signal I/O diagnostic mode allows to review and change the digital and analog input/output
functions of the analyzer. See Appendix A-4 for a complete list of the parameters available for
review under this menu.
NOTE
Any changes of signal I/O settings will remain in effect only until the signal I/O menu is
exited. Exceptions are the ozone generator override and the flow sensor calibration,
which remain as entered when exiting.
04584 Rev A1 67
Page 79
Model GFC7000E Instruction Manual Operating Instructions
A
To enter the signal I/O test mode, press:
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SETUP
DIAG
PREV NEXT
SIGNAL I / O
ENTR
JUMP
EXIT
NEXT &PREV
Use the
keys to move betw ee n
signal types.
Use the JUMP key to
See Appendix A-4 for
Enter 12 to Jump to
12) ST_CONC_VALID
go directly to a
specific signal
a complete list of
SIGNALS
available
EXAMPLE:
Exit to return
to the
DIAG
menu
EXIT
to the main
SAMPLE
returns
display
SAMPLE
SETUP X.X
CFG DAS RNGE PASS CLK
SETUP X.X
COMM VARS
ENTER SETUP PASS : 818
8 1 8
PRIMARY SETUP MENU
SECONDARY SETUP MENU
DIAG
ALRM EXIT
MORE
EXIT
ENTR
EXIT
DIAG I / O
PREV NEXT
EXAMPLE
DIAG I / O
1 2 ENTR
DIAG I / O
PREV NEXT JUMP
Test Signals Displayed Here
JUMP
JUMP TO: 12
ST_CONC_VALID = ON
ON
Pressing the PRNT key will send a formatted printout to the serial port and can be
captured with a computer or other output device.
PRNT EXIT
PRNT
EXIT
EXIT
6.9.3. Analog Output Step Test
This test can be used to check the accuracy and proper operation of the analog outputs. The test
forces all four analog output channels to produce signals ranging from 0% to 100% of the full
scale range in 20% increments. This test is useful to verify the operation of the data
logging/recording devices attached to the analyzer.
To begin the Analog Output Step Test press:
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SAMPLE
ENTER SETUP PASS : 818
SETUP
8 1 8
SETUP X.X
PRIMARY SETUP MENU
ENTR
EXIT
CFG DAS RNGE PASS CL K
SETUP X.X
SECONDARY SETUP MENU
EXIT
MORE
COMM VARS
ALRM EXIT
DIAG
DIAG SIGNAL I / O
NEXT ENTR EXIT
DIAG
PREV NEXT
DIAG AOUT ANALOG OUTPUT
0%
DIAG AOUT ANALOG OUTPUT
NALOG OUTPUT
ENTR
EXIT
EXIT
[0%] EXIT
Pressing the key under “0%” while performing the test will
pause the test at that level. Brackets will appear around
the value: example: [20%] Press i ng t he same key again
Performs
analog output
step test.
0% - 100%
Exit-Exit
returns to the
DIAG menu
will resume the test.
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6.9.4. Analog I/O Configuration
The analog I/O functions that are available in the MGFC7000E are:
Table 6-8: DIAG - Analog I/O Functions
Sub Menu Function
AOUTS CALIBRATED: Shows the status of the analog output calibration (YES/NO) and initiates a
calibration of all analog output channels.
CONC_OUT_1 Sets the basic electronic configuration of the A1 analog output (CO2 ) . There are
three options:
Range: Selects the signal type (voltage or current loop) and full scale level of the
output.
REC_OFS: Allows to set a voltage offset (not available when RANGE is set to
CURRent loop.
Auto_CAL: Performs the same calibration as AOUT CALIBRATED, but on this one
channel only.
NOTE: Any change to RANGE or REC_OFS requires recalibration of this output.
CONC_OUT_2 Same as for CONC_OUT_1 but for analog channel 2 (CO2 )
TEST OUTPUT Same as for CONC_OUT_1 but for analog channel 4 (TEST)
AIN CALIBRATED Shows the calibration status (YES/NO) and initiates a calibration of the analog to
digital converter circuit on the motherboard.
To configure the analyzer’s three analog outputs, set the electronic signal type of each channel
and calibrate the outputs. This consists of:
• Selecting an output type (voltage or current, if an optional current output driver has been
installed) and the signal level that matches the input requirements of the recording device
attached to the channel, see Sections 6.9.4.1.
• Calibrating the output channel. This can be done automatically or manually for each
channel, see Sections 6.9.4.2 and 6.9.4.3.
• Adding a bipolar recorder offset to the signal, if required (Section 6.9.4.2.)
In its standard configuration, the analyzer’s outputs can be set for the following DC voltages. Each
range is usable from -5% to + 5% of the nominal range.
Table 6-9: Analog Output Voltage Ranges
RANGE MINIMUM OUTPUT MAXIMUM OUTPUT
0-0.1 V -5 mV +105 mV
0-1 V -0.05 V +1.05 V
0-5 V -0.25 V +5.25 V
0-10 V -0.5 V +10.5 V
The default offset for all ranges is 0 VDC.
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The following DC current output limits apply to the current loop modules:
Table 6-10: Analog Output Current Loop Range
RANGE MINIMUM OUTPUT MAXIMUM OUTPUT
0-20 mA 0 mA 20 mA
These are the physical limits of the current loop modules, typical
applications use 2-20 or 4-20 mA for the lower and upper limits.
Please specify desired range when ordering this option.
The default offset for all ranges is 0 mA.
Pin assignments for the output connector at the rear panel of the instrument are shown in Table
6-11.
ANALOG OUT
A1 A2 A3 A4
+ - + - + - + -
Table 6-11: Analog Output Pin Assignments
PIN ANALOG
OUTPUT
1 V Out I Out +
2
3 V Out I Out +
4
5 V Out I Out +
6
7 & 8 A3 Not Used Not Used
A1
A2
A4
VOLTAGE
SIGNAL
Ground I Out -
Ground I Out -
Ground I Out -
CURRENT
SIGNAL
See Figure 3-2 for a the location of the analog output connector on the instruments rear panel.
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6.9.4.1. Analog Output Signal Type and Range Span Selection
To select an output signal type (DC Voltage or current) and level for one output channel, activate
the ANALOG I/O CONFIGURATION MENU (see Section 6.9.1) then press:
These key s se t
the signal level
and type of the
selected channel
FROM ANALOG I/O CONFIGURATION MENU
DIAG ANALOG I / O CONFIGURATION
PREV NEXT ENTR EXIT
DIAG AIO AOUTS CALIBRATED: NO
< SET SET> CAL EXIT
DIAG AIO CONC_OUT_2:5V, CAL
< SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2 RANGE: 5V
SET> EDIT EXIT
DIAG AIO OUTPUT RANGE: 5V
0.1V 1V 5V 10V CURR ENTR EXIT
Press SET> to select the
analog output channel to be
configured. Press EDIT to
continue
DIAG AIO OUTPUT RANGE: 10V
0.1V 1V 5V 10V CURR ENTR EXIT
Pressing ENTR records the new setting
and returns to the previous menu.
Pressing
ignores the new setting and
EXIT
returns to the previous menu.
6.9.4.2. Analog Output Calibration Mode
The analog outputs can be calibrated automatically or manually. In its default mode, the
instrument is configured for automatic calibration of all channels. Manual calibration should be
used for the 0.1V range or in cases where the outputs must be closely matched to the
characteristics of the recording device. Outputs configured for automatic calibration can be
calibrated as a group or individually. Calibration of the analog outputs needs to be carried out on
first startup of the analyzer (performed in the factory as part of the configuration process) or
whenever re-calibration is required.
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A
A
To calibrate the outputs as a group, activate the ANALOG I/O CONFIGURATION MENU (see
Section 6.9.1), then press:
Exit at any time
to return to the
main DIAG
menu
If any of the channels have
not been calibrated this
message will read NO.
STARTING FROM DIAGNOSTIC MENU
DIAG
PREV NEXT ENTR EXIT
DIAG AIO
< SET SET> CAL EXIT
DIAG AIO AUTO CALIBRATING CONC_OUT_1
AUTO CALIBRATING CONC_OUT_2
AUTO CALIBRATING TEST_OUTPUT
D IAG AIO AOUTS CALIBRATED: YES
< SET SET> CAL
(see Section 6.7.1)
NALOG I / O CONFIGURATION
OUTS CALIBRATED:
EXIT
NO
If AutoCal has been
turned off for any
channel, the message
for that channel will be
similar to:
NOT AUTO CAL
CONC_OUT_1
To automatically calibrate a single analog channel, activate the ANALOG I/O
CONFIGURATION MENU (see Section 6.9.1), then press:
DIAG ANALOG I / O CONFIGURATION
PREV NEXT ENTR EXIT
EXIT to Return
to the main
Sample Display
Exit to return to
the I/O
configuration
menu
DIAG AIO AOUTS CALIBRATED: NO
< SET > CAL EXIT
DIAG AIO CONC_OUT_2:5V, CAL
< SET SET> EDIT EXIT
DIAG AIO
CONC_OUT_2 RANGE: 5V
SET> EDIT EXIT
DIAG AIO CON C_OUT_2 REC OFS: 0 mV
< SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2 AUTO CAL: ON
< SET SET> EDIT EXIT
Press SET> to select the
nalog Output channel to
be configured. Then Press
EDIT to continue
DIAG AIO CONC_OUT_2 CALIBRATED: NO
<SET CAL EXIT
DIAG AIO AUTO CALIBRATING CONC_OUT_2
DIAG AIO CONC_OUT_2 CALIBRATED: YES
<SET CAL EXIT
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To select manual output calibration for a particular channel, activate the ANALOG I/O
CONFIGURATION MENU (see Section 6.9.1), then press:
Exit to return to
the main
sample display
DIAG
PREV NEXT ENTR EXIT
DIAG AIO AOUTS CALIBRATED:NO
< SET SET> CAL EXIT
Press SET> to select the analog output channel to
be configured. Then press
DIAG AIO
< SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2 RANGE: 5V
SET> EDIT EXIT
ANALOG I / O CONFIGURATION
to continue
EDIT
CONC_OUT_2:5V, CAL
DIAG AIO CO NC _OUT_2 REC OFS: 0 mV
< SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2 AUTO CAL: ON
< SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2 AUTO CAL: ON
ON ENTR EXIT
Toggles the
auto cal mode
ON/ OFF for
this analog
output channel
only.
ENTR accepts the new setting
and returns to the previous menu.
EXIT ignores the new setting and
returns to the previous menu.
Now the analog output channels should either be automatically calibrated or they should be set to
manual calibration, which is described next.
6.9.4.3. Manual Analog Output Calibration and Voltage Adjustment
For highest accuracy, the voltages of the analog outputs can be manually calibrated. Calibration is
done through the instrument software with a voltmeter connected across the output terminals
(Figure 6-5). Adjustments are made using the front panel keys by setting the zero-point first and
then the span-point (Table 6-12).
The software allows this adjustment to be made in 100, 10 or 1 count increments.
Table 6-12: Voltage Tolerances for Analog Output Calibration
Full Scale Zero Tolerance Span Voltage Span Tolerance
0.1 VDC ±0.0005V 90 mV ±0.001V
1 VDC ±0.001V 900 mV ±0.001V
5 VDC ±0.002V 4500 mV ±0.003V
10 VDC ±0.004V 4500 mV ±0.006V
NOTE
Outputs configured for 0.1V full scale should always be calibrated manually
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R
See Table 3-1 for
pin assignments
of Analog Out
connector on the
rear panel
V
+DC Gnd
V OUT +
V OUT -
ANALYZE
V IN +
V IN -
Recording
Device
Figure 6-5: Setup for Calibrating Analog Voltage Outputs
To make these adjustments, the AOUT auto-calibration feature must be turned off (Section
6.9.4.2). Activate the ANALOG I/O CONFIGUR ATION MENU (see Section 6.9.1), then press:
FROM ANALOG I/O CONFIGURATION MENU
DIAG ANALOG I / O CONFIGURATION
PREV NEXT ENTR EXIT
DIAG AIO AOUTS CALIBRATED: NO
< SET SET> CAL EXIT
Press SET> to select the analog output channel to be
DISPLAYED AS = CHANNEL
CONC_OUT_1 = A1
CONC_OUT_2 = A2
TEST OUTPUT = A4
DIAG AIO CONC_OUT_1 :5V, NO CAL
< SET SET> EDIT EXIT
configured:
These keys increase / decrease the analog
output by 100, 10 or 1 counts.
Continue adjustments until the voltage measured
at the output of the analyzer and/or the input of
the recording device matches the value in the
upper right hand corner of the display to the
tolerance listed in Table 6-10.
The concentration display will not change. Only
the voltage reading of your voltmeter will change.
DIAG AIO CONC_OUT_1 RANGE: 5V
SET> EDIT EXIT
DIAG AIO CONC_OUT_1 REC OFS: 0 mV
< SET SET> EDIT EXIT
DIAG AIO CONC_OUT_1 AUTO CAL: OFF
< SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2 CALIBRATED: NO
< SET CAL EXIT
DIAG AIO CONC_OUT_1 VOLT–Z : 0 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
DIAG AIO CONC_OUT_1 VOLT–S : 4500 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
DIAG AIO
< SET CAL EXIT
CONC_OUT_1 CALIBRATED: YES
If AutoCal is ON, go to
Section 6.7.3
EXIT ignores the
new setting.
ENTR accepts the
new setting.
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6.9.4.4. Current Loop Output Adjustment
A current loop option is available and can be installed as a retrofit for each of the analog outputs
of the analyzer (Sections 5.2). This option converts the DC voltage analog output to a current
signal with 0-20 mA output current. The outputs can be scaled to any set of limits within that 0-20
mA range. However, most current loop applications call for either 2-20 mA or 4-20 mA range. All
current loop outputs have a +5% over-range. Ranges with the lower limit set to more than 1 mA
(e.g., 2-20 or 4-20 mA) also have a -5% under-range.
To switch an analog output from voltage to current loop after installing the current output printed
circuit assembly, follow the instructions in Section 6.9.4.4 and select CURR from the list of
options on the RANGE menu.
Adjusting the signal zero and span values of the current loop output is done by raising or lowering
the voltage of the respective analog output. This proportionally raises or lowers the current
produced by the current loop option.
Similar to the voltage calibration, the software allows this current adjustment to be made in 100,
10 or 1 count increments. Since the exact current increment per voltage count varies from output
to output and from instrument to instrument, you will need to measure the change in the current
with a current meter placed in series with the output circuit (Figure 6-6).
See Table 3-2 for
pin assignments o
the Analog Out
connector on the
rear panel.
V OUT +
V OUT -
Analyzer
mA
IN OUT
I IN +
I IN -
Recording
Device
Figure 6-6: Setup for Calibrating Current Outputs
NOTE
Do not exceed 60 V between current loop outputs and instrument ground.
To adjust the zero and span values of the current outputs, activate the ANALOG I/O
CONFIGURATION MENU (see Section 6.9.1), then press:
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FROM ANALOG I/O CONFIGURATION MENU
DIAG ANALOG I / O CONFIGURATION
PREV NEXT ENTR EXIT
DIAG AIO AIN CALIBRATED: NO
SET> EDIT EXIT
Press SET> to select the analog output channel
DIAG AIO CONC_OUT_2:CURR, NO CAL
< SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2 RANGE: CURR
<SET SET> EDIT EXIT
DIAG AIO CONC_OUT_2 CALIBRATED: NO
< SET CAL EXIT
DIAG AIO AUTO CALIBRATING CONC_OUT_2
to be configured:.
The instrument attempt to automatically c alibrate
DIAG AIO CONC_OUT_2 D/A/ CAL ERROR
EXIT
DIAG AIO CONC_OUT_2 CURR-Z: 0 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
DIAG AIO CONC_OUT_2 ZERO: 27 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
DIAG AIO CONC_OUT_2 SPAN: 1000 0 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
DIAG AIO CONC_OUT_2 ZERO: 9731 mV
U100 UP10 UP DOWN DN10 D100 ENTR EXIT
DIAG AIO CONC_OUT_2 CALIBRATED: YES
< SET CAL EXIT
the channel … then beep.
Increase or decrease the current
output by 100, 10 or 1 counts.
The resulting change in output
voltage is displayed in the upper
Continue adjustments until the
correct current is measured with
line.
the current meter.
EXIT ignores the
new setting, ENTR
accepts the new
setting.
If a current meter is not available, an alternative method for calibrating the current loop outputs
is to connect a 250 Ω ± 1% resistor across the current loop output. Using a voltmeter connected
across the resistor, follow the procedure above but adjust the output to the following values:
Table 6-13: Current Loop Output Calibration with Resistor
Full scale
Voltage for 2-20 mA
(measured across resistor)
0% 0.5 V 1.0 V
100% 5.0 V 5.0 V
Voltage for 4-20 mA
(measured across resistor)
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6.9.4.5. AIN Calibration
This is the sub-menu to conduct the analog input calibration. This calibration should only be
necessary after major repair such as a replacement of CPU, motherboard or power supplies.
Activate the ANALOG I/O CONFIGURATION MENU (see Section 6.9.1), then press:
STARTING FROM ANALOG I / O CONFIGURATION MENU
DIAG
PREV NEXT
NALOG I / O CONFIGURATION
ENTR
Continue pressing SET? until …
EXIT
Exit at any time to
return to the main
DIAG menu
Instrument
calibrates
automatically
DIAG AIO
< SET SET> CAL EXIT
DIAG AIO CALIBRATING A/D ZERO
DIAG AIO AIN CALIBRATED: YES
< SET SET> CA L EXIT
IN CALIBRATED: NO
CALIBRATING A/D SPAN
Exit to return to the
ANAL OG I/O
CONFIGURATION
MENU
6.9.5. Electric Test
The electric test function substitutes simulated signals for CO2 MEAS and CO2 REF, generated by
circuitry on the sync/demod board, for the output of the IR photo-detector. While in this mode the
user can also view the same test functions viewable from the main SAMPLE display. When the
test is running, the concentration reported on the front panel display should be 40.0 ppm.
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SAMPLE
ENTER SETUP PASS : 818
8 1 8
ENTR
SETUP
EXIT
DIAG SIGNAL I / O
NEXT
Repeat Pressing
NEXT
ENTR EXIT
unti . . .
SETUP X.X
CFG DAS RNGE PASS CLK
SETUP X.X
COMM VARS
PRIMARY SETUP MENU
SECONDARY SETUP MENU
ALRM EXIT
DIAG
EXIT
MORE
Press
<TST TST>
NOTE:
All other Test Functions will report the correct operational
CO MEAS
enforce a CO
and
DIAG
PREV NEXT
DIAG ELEC RANGE=50.000 PPM
<TST TST> EXIT
to view Test Functions
will be artificially altered to
CO REF
reading of
2
40.0
value
ELECTRIC TEST
ppm.
ENTR
EXIT
CO2= 40.0
Exit returns
DIAG
to the
Menu
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6.9.6. Dark Calibration Test
The dark calibration test interrupts the signal path between the IR photo-detector and the
remainder of the sync/demod board circuitry. This allows the instrument to compensate for any
voltage levels inherent in the sync/demod circuitry that might effect the calculation of CO
concentration. Performing this calibration returns two offset voltages, One for CO
for CO
REF that are automatically added to the CPU’s calculation routine. The two offset voltages
2
MEAS and on
2
from the last calibration procedure may be reviewed by the user via the front panel display.
To activate the dark calibration procedure or review the results of a previous calibration, press:
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
2
SAMPLE
8 1 8 ENTR EXIT
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
ENTER SETUP PASS : 818
Electric offset for Reference signal
DIAG DARK REF DARK OFFSET: 0.0 mV
EXIT
Electric offset for Measurement signal
DIAG DARK MEAS DARK OFFSET: 0.0 mV
EXIT
DIAG SIGNAL I / O
NEXT ENTR EXIT
Repeat Pressing
DIAG DARK CALIBRATION
PREV NEXT ENTR EXIT
DIAG DARK CO DARK CALIBRATION
VIEW CAL EXIT
Calibration runs automatically
DIAG DARK DARK CAL 1% COMPLETE
EXIT
DIAG DARK DARK CALIBRATION ABORTED
EXIT
NEXT
until . . .
Exit returns
to the
previous menu
Display
tracks %
complete
6.9.7. Pressure Calibration
A sensor at the exit of the sample chamber continuously measures the pressure of the sample
gas. This data is used to compensate the final CO
atmospheric pressure and is stored in the CPU’s memory as the test function PRES (also viewable
via the front panel).
04584 Rev A1 78
concentration calculation for changes in
2
NOTE
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Model GFC7000E Instruction Manual Operating Instructions
This calibration must be performed when the pressure of the sample gas is equal to
ambient atmospheric pressure.
Before performing the following pressure calibration procedure, disconnect the sample
gas pump and the sample gas-line vent from the sample gas inlet on the instrument’s
rear panel.
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A
To cause the analyzer to measure and record a value for PRES, press.
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SAMPLE ENTER SETUP PASS : 818
8 1 8 ENTR EXIT
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
Exit at
any time
to return
to main
the
SETUP
menu
DIAG
DIAG
DIAG FCAL
2 7 .2 0 ENTR EXIT
SIGNAL I / O
NEXT
ENTR EXIT
SIGNAL I / O
NEXT
ENTR EXIT
Repeat Pressing NEXT until . .
CTUAL PRESS : 27.20 IN-HG-A
Adjust these values until
the displayed flow rate
equals the flow rate being
measured by the
independent flow meter.
.
NTR
E
accepts the
new value and
returns to the
previous menu
EXIT
ignores the
new value and
returns to the
previous menu
6.9.8. Flow Calibration
The flow calibration allows the user to adjust the values of the sample flow rates as they are
displayed on the front panel and reported through COM ports to match the actual flow rate
measured at the sample inlet. This does not change the hardware measurement of the flow
sensors, only the software calculated values.
To carry out this adjustment, connect an external, sufficiently accurate flow meter to the sample
inlet (see Chapter 11 for more details). Once the flow meter is attached and is measuring actual
gas flow, press:
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SAMPLE ENTER SETUP PASS : 818
8 1 8 ENTR EXIT
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X SE CONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
Exit at
any time
to return
to main
the
SETUP
menu
Adjust these values until
the displayed flow rate
equals the flow rate being
measured by the
independent flow meter.
DIAG
DIAG
PREV NEXT
DIAG FCAL
0 6 0 7 ENTR EXIT
SIGNAL I / O
NEXT
ENTR EXIT
Repeat Pressing NEXT until . .
FLOW CALIBRATION
ENTR
CTUAL FLOW: 607 CC / M
.
EXIT
NTR
E
accepts the
new value and
returns to the
previous menu
EXIT
ignores the
new value and
returns to the
previous menu
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T
6.9.9. Test Channel Output
When activated, output channel A3 can be used to report one of the test functions viewable from
the SAMPLE mode display. To activate the A3 channel and select a test function, follow this key
sequence:
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SETUP
Continue to press NEXT until …
SAMPLE ENTER SETUP PASS : 818
8 1 8 ENTR EXIT
SETUP X.X
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
DIAG SIGNAL I / O
NEXT ENTR EXIT
DIAG ANALOG OUTPUT
PREV
PRIMARY SETUP MENU
NEXT
Table 6-14: Test Parameters Available for Analog Output A3
Test Channel Zero Full Scale
ENTR EXIT
EXIT
returns
to the main
SAMPLE
display
DIAG TEST CHAN OUTPUT
PREV NEXT ENTR EXIT
DIAG TCHN TEST CHANNEL: NONE
NEXT ENTR EXIT
DIAG TCHN TEST CHANNEL: CO2 MEASURE
PREV NEXT ENTR EXIT
Press PREV or NEX
to move through the
list of available
parameters
(Table 6-13)
Press ENTR to select
the displayed
parameter activating
the test channel.
Press EXIT to
return to the
DIAG menu
NONE Test Channel is turned off
CO2 MEASURE
CO2 REFERENCE
SAMPLE PRESS
SAMPLE FLOW
SAMPLE TEMP
BENCH TEMP
WHEEL TEMP
CHASSIS TEMP
0 mV 5000 mV*
0 mV 5000 mV*
0 "Hg 40 "Hg
0 cc/m 1000 cc/m
0°C 70°C
0°C 70°C
0°C 70°C
0°C 70°C
PHT DRIVE 0 mV 5000 mV
* This refers to the internal voltage level of the function NOT the output
signal level of the Test channel itself.
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6.10. SETUP – COMM: Using the Analyser’s
Communication Ports
The MGFC7000E is equipped with two serial communication ports located on the rear panel
(Figure 3-2). Both ports operate similarly and give the user the ability to communicate with, issue
commands to, and receive data from the analyzer through an external computer system or
terminal. By default, both ports operate on the RS-232 protocol. The COM2 port, however, can be
configured for half-duplex RS-485 communication or can be used for the Teledyne Instruments
Ethernet interface card (optional equipment, Section 5.5.3).
Multidrop Communications
There are two options to connect multiple analyzers to a single computer terminal or data logging
device over a single serial communications line. Either port can be equipped with an optional RS-
232 multidrop assembly (Section 5.5.2), or up to eight analyzers can be connected using COM2
configured for RS-485 operation (contact the factory for further information). A third option is to
use a code-activated switch (CAS), which can connect typically between 2 and 16 analyzers to one
communications hub. Contact Teledyne Instruments sales for more information on CAS systems.
Ethernet Communications
When equipped with the optional Ethernet interface, the analyzer can be connected to any
standard 10BaseT Ethernet network via low-cost network hubs, switches or routers. The interface
operates as a standard TCP/IP device on port 3000. This allows a remote computer to connect
through the internet to the analyzer using APIcom, terminal emulators or other programs.
6.10.1. Analyzer ID Code
The first entry in the COMM menu is for configuration of the analyzer ID code, a numerical value
of up to 4 digits. Each type of Teledyne Instruments analyzer is configured with a default ID code.
The MGFC7000E default ID code is 360. When more than one Teledyne Instruments analyzer of
the same model type is connected to the same communications channel , such as two Model
GFC7000E’s operating on the same Hessen Protocol network, each analyzer needs to be
addressed with a unique ID number.
To edit the instrument’s ID code, press:
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g
Toggle these keys to
cycle through the
available character set:
0-9
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL SETUP
SAMPLE
8 1 8 ENTR EXIT
SETUP X.X PRIMARY SETUP MENU
CFG DAS RNGE PASS CLK MORE EXIT
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
SETUP X.X COMMUNICATIONS MENU
ID COM1 COM2 EXIT
SETUP X. MACHINE ID: 360 ID
0 3 6 0 ENTR EXIT
ENTER SETUP PASS : 818
ENTR key accepts the
new settings
EXIT key ignores the
new settin
s
The ID number is only important if more than one analyzer is connected to the same
communications channel (e.g., a multi-drop setup). Different models of Teledyne Instruments
analyzers have different default ID numbers, but if two analyzers of the same model type are
used on one channel (for example, two MGFC7000E’s), the ID of one instrument needs to be
changed.
The ID can also be used for to identify any one of several analyzers attached to the same network
but situated in different physical locations.
6.10.2. COMM Port Default Settings
Received from the factory, the analyzer is set up to emulate a DCE or modem, with pin 3 of the
DB-9 connector designated for receiving data and pin 2 designated for sending data.
• COM1: RS-232 (fixed), DB-9 male connector.
o Baud rate: 19200 bits per second (baud).
o Data Bits: 8 data bits with 1 stop bit.
o Parity: None.
• COM2: RS-232 (configurable), DB-9 female connector.
o Baud rate: 115000 bits per second (baud).
o Data Bits: 8 data bits with 1 stop bit.
o Parity: None.
NOTE
Cables that appear to be compatible because of matching connectors may incorporate
internal wiring that make the link inoperable. Check cables acquired from sources other
than Teledyne Instruments for pin assignments before using.
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6.10.3. COMM Port Cable Connections
There are two DB-9 connectors on the MGFC7000E rear panel. COM1 is a male connector, COM2
a female connector (Table 6-15 lists pin assignments). Teledyne Instruments offers two mating
cables, one of which should be applicable for your use.
Part number WR000077, a DB-9 female to DB-9 female cable, 6 feet long, allows connection of
COM1 with the serial port of most personal computers. Also available as Option 60 (Section
5.5.1).
Part number WR0000024, a DB-9 female to DB-25 male cable. Allows connection to the most
common styles of modems (e.g. Hayes-compatible) and code activated switches.
Both cables are configured with straight-through wiring and should require no additional adapters.
To assist in properly connecting the serial ports to either a computer or a modem, there are
activity indicators just above each COM port. When power is applied to the analyzer, the red LED
should be illuminated. If this LED is dark, it indicates a communications error between serial port
and CPU.
Once a cable is connected between the analyzer and a computer or modem, both the red and
green LEDs should be on. If not, COM1 can be switched between DTE and DCE modes using a
small switch on the rear panel to exchange the receive and transmit lines (emulating a cross-over
or null-modem cable). If both LEDs are still not illuminated, check the cable for proper wiring. For
COM2 it may be necessary to install a null-modem cable (contact customer service for
information).
6.10.4. RS-485 Configuration of COM2
As delivered from the factory, COM2 is configured for RS-232 communications. This port can be
re-configured for operation as a non-isolated, half-duplex RS-485 port with a 150 Ω termination
resistor (Table 6-15 shows the pin assignments of the DB-9 connector).
For RS-485 operation, jumper JP3 on the CPU board should be installed and switch 6 of SW1
should be set to the ON position. For RS-232, remove the jumper and set the switch to OFF
(default). JP3 is just to the right of the third connector from the left on the top of the CPU board
(as seen from the inside of the analyzer). SW1 is in the middle of the CPU board between disk-onchip and BIOS. For non-terminated RS-485 operation, remove the jumper on JP3 but leave switch
6 in the ON position. Refer to Figure 3-11 to locate the CPU board.
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Table 6-15: COM1 and COM2 DB-9 Pin Assignments
Pin # COM1 (RS-232) COM2 (RS-232) COM2 (RS-485)
1 Not used Not used Not used
2 Transmit Data* Receive Data DATA -
3 Receive Data* Transmit Data Data +
4 Not used Not used Not used
5 Signal Ground Signal Ground Signal Ground
6 Not used Not used Not used
7 DATA SET READY* DATA SET READY Not used
8 REQUEST TO SEND*
(=DTE Ready)
9 Not used Not used Not used
* Configurable for COM1 at rear panel using the DTE-DCE switch
REQUEST TO SEND
Not used
6.10.5. DTE and DCE Communication
RS-232 was developed for allowing communications between data terminal equipment (DTE) and
data communication equipment (DCE). Basic terminals always fall into the DTE category whereas
modems are always considered DCE devices. The difference between the two is the pin
assignment of the Data Receive and Data Transmit functions. DTE devices receive data on pin 2
and transmit data on pin 3, DCE devices receive data on pin 3 and transmit data on pin 2.
To allow the analyzer to be used with terminals (DTE), modems (DCE) and computers (which can
be either), a switch mounted below the serial ports on the rear panel allows the user to switch
between the two functions.
6.10.6. COMM Port Communication Modes
Each of the analyzer’s serial ports can be configured to operate in a number of different modes,
listed in Table 6-16, which can be combined by adding the mode ID numbers. For example, quiet
mode, computer mode and internet-enabled mode would carry a combined mode ID of 11, the
standard configuration on the MGFC7000E COM2 port. Note that each COM port needs to be
configured independently.
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Table 6-16: COMM Port Communication modes
1
MODE
QUIET
COMPUTER
SECURITY
HESSEN
PROTOCOL
E, 7, 1
RS-485
MULTIDROP
PROTOCOL
ENABLE
MODEM
ERROR
CHECKING
XON/XOFF
HANDSHAKE2
HARDWARE
HANDSHAKE
HARDWARE
FIFO
COMMAND
PROMPT
1
Modes are listed in the order in which they appear in the
SETUP Æ MORE Æ COMM Æ COM[1 OR 2] Æ MODE menu
2
The default sting for this feature is ON. Do not disable unless instructed to by Teledyne Instruments
Customer Service personnel.
ID DESCRIPTION
Quiet mode suppresses any feedback from the analyzer (iDAS reports, and
1
2
4
16
2048
1024
32
64
2
128
256
8
2
512
4096
warning messages) to the remote device and is typically used when the port
is communicating with a computer program such as APICOM. Such feedback
is still available but a command must be issued to receive them.
Computer mode inhibits echoing of typed characters and is used when the
port is communicating with a computer program, such as APICOM.
When enabled, the serial port requires a password before it will respond.
The only command that is active is the help screen (? CR).
The Hessen communications protocol is used in some European countries.
Teledyne Instruments part number 02252 contains more information on this
protocol.
When turned on this mode switches the COMM port settings
from
No parity; 8 data bits; 1 stop bit
to
Even parity; 7 data bits; 1 stop bit
Configures the COM2 Port for RS-485 communication. RS-485 mode has
precedence over multidrop mode if both are enabled.
Multidrop protocol allows a multi-instrument configuration on a single
communications channel. Multidrop requires the use of instrument IDs.
Enables to send a modem initialization string at power-up. Asserts certain
lines in the RS-232 port to enable the modem to communicate.
Fixes certain types of parity errors at certain Hessen protocol installations.
Disables XON/XOFF data flow control also known as software handshaking.
Enables CTS/RTS style hardwired transmission handshaking. This style of
data transmission handshaking is commonly used with modems or terminal
emulation protocols as well as by Teledyne Instrument’s APICOM software.
Improves data transfer rate when on of the COMM ports.
Enables a command prompt when in terminal mode.
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g
Press the following keys to select a communication mode for a one of the COMM Ports, such as the
following example where HESSEN PROTOCOL mode is enabled:
Select which COM
port to configure
The sum of the mode
IDs of the selected
modes is displayed
here
SAMPLE* RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > C AL SETUP
SAMPLE
8 1 8 ENTR EXIT
SE T UP X. X
CFG DAS RNGE PASS CLK MORE EXIT
SE T UP X. X
COMM VARS DIAG ALRM EXIT
SE T UP X. X COMMUNICATIONS MENU
ID
SE T UP X. X
SET> EDIT EXIT
ENTER SETUP PASS : 818
PRIMARY SETUP MENU
SECONDARY SETUP MENU
COM1
COM2 EXIT
COM1 MODE:0
EXIT returns
to the
previous
menu
Use PREV and NEXT
keys to move between
available modes.
A mode is enabled by
toggling the ON/OFF
key.
SETUP X.X
NEXT OFF ENTR EXIT
SE T UP X. X
PREV NEXT OFF
SE T UP X. X
PREV NEXT ON ENTR EXIT
Continue pressing the NEXT and PREV keys to select any other
COM1 QUIET MODE: OFF
Continue pressing next until …
COM1 HESSEN PROTOCOL : OFF
COM1 HESSEN PROTOCOL : ON
modes you which to enable or disable
ENTR EXIT
ENTR key accepts the
new settings
EXIT key ignores the
new settin
s
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6.10.7. COM Port Baud Rate
To select the baud rate of one of the COM Ports, press:
Select which COM
port to configure.
Press SET> until you
reach COM1 BAUD
RATE
Use PREV and NEXT
keys to move
between available
baud rates.
300
1200
4800
9600
19200
38400
57600
115200
SAMPLE* RA NGE = 500.000 PPM CO2 =X.XXX
< TST TST > CA L SETUP
SAMPLE
8 1 8
SETUP X.X
CFG DAS RNGE PASS CLK
SETUP X.X SECONDARY SETUP MENU
COMM VARS DIAG ALRM EXIT
SETUP X.X COMMUNICATIONS MENU
ID COM1 COM2 EXIT
SETUP X.X
SET>
EXAMPLE
SETUP X.X COM1 BAUD RATE:19200
<SET SET> EDIT EXIT
SETUP X.X
PREV
SETUP X.X COM1 BAUD RATE:9600
NEXT
ENTER SETUP PASS : 818
PRIMARY SETUP MENU
MORE
COM1 MODE:0
EDIT EXIT
COM1 BAUD RATE:19200
NEXT ENTR EXIT
ON
ENTR
EXIT
EXIT
ENTR EXIT
EXIT returns
to the
previous
menu
EXIT key
ignores
the new
setting
ENTR
accepts
the new
setting
key
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6.10.8. COM Port Testing
The serial ports can be tested for correct connection and output in the COMM menu. This test
sends a string of 256 ‘w’ characters to the selected COM port. While the test is running, the red
LED on the rear panel of the analyzer should flicker.
To initiate the test press the following key sequence.
SAMPLE RANGE = 500.000 PPM CO2 =X.XXX
< TST TST > CAL
SETUP
SETUP X.X
ID
COM1
COMMUNICATIONS MENU
COM2 EXIT
Select which
COM port to
test.
SAMPLE
SETUP X.X
CFG DAS RNGE PASS CLK
SETUP X.X
COMM VARS
ENTER SETUP PASS : 818
8 1 8
PRIMARY SETUP MENU
SECONDARY SETUP MENU
ALRM EXIT
DIAG
EXIT
MORE
automatically
EXIT
ENTR
Test runs
SETUP X.X
SET>
SETUP X.X COM1 BAUD RATE:19200
<SET
SET>
SETUP X.X
<SET
SETUP X.X
<SET TEST
COM1 MODE:0
EDIT EXIT
EDIT EXIT
COM1 : TEST PORT
EXIT
TEST
TRANSMITTING TO COM 1
EXIT
EXIT returns to
COMM menu
6.10.9. Ethernet Card Configuration
The optional Ethernet card (Option 63) allows the analyzer to communicate via standard 10BaseT
Ethernet protocol through the COM2 serial port. Refer to Figure and 5-4 for the physical location
of this option.
The card has four LEDs that are visible on the rear panel of the analyzer, indicating its current
operating status.
Table 6-17: Ethernet Status Indicators
LED FUNCTION
LNK (green) ON when connection to the LAN is valid.
ACT (yellow) Flickers on any activity on the LAN.
TxD (green) Flickers when the RS-232 port is transmitting
data.
RxD (yellow) Flickers when the RS-232 port is receiving data.
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