Teledyne GFC7000E Manual do Utilizador Página 166
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Model GFC7000E Instruction Manual THEORY OF OPERATION
04584 Rev A1 155
Measurement
Cell
(Pure N
2
)
Reference Cell
(N
2
with CO
2
)
Figure 10-2: GFC Wheel
A GFC wheel is a metallic wheel into which two chambers are carved. The chambers are sealed on
both sides with material transparent to 4.3 µm IR radiation creating two airtight cavities. Each
cavity is filled with specially composed gases. One cell is filled with pure N
2
(the measure cell)
.
The other is filled with a combination of N
2
and a high concentration of CO
2
(the reference cell).
IR
Source
Photo-Detector
M
R
GFC Wheel
IR unaffected by N
2
in Measurement Cell
IR IS affected by CO in Reference Cell
Δ H
Figure 10-3: Measurement Fundamentals with GFC Wheel
As the GFC wheel spins, the IR light alternately passes through the two cavities. When the beam
is exposed to the reference cell, the CO
2
in the gas filter wheel strips the beam of most of the IR
at 4.3μm. When the light beam is exposed to the measurement cell, the N
2
in the filter wheel
- MODEL GFC7000E 1
- CARBON DIOXIDE ANALYZER 1
- SAFETY MESSAGES 2
- TABLE OF CONTENTS 3
- 04584 Rev A1 iii 4
- 04584 Rev A1 iv 5
- 04584 Rev A1 v 6
- 04584 Rev A1 vi 7
- LIST OF APPENDICES 8
- LIST OF FIGURES 8
- LIST OF TABLES 9
- User Notes 11
- 1. MGFC7000E DOCUMENTATION 12
- WARRANTY 16
- 2.2. CE Mark Compliance 17
- 2.3. Warranty 17
- 3. GETTING STARTED 20
- Shipping 21
- Basic Pneumatic Connections 26
- 3.2. Initial Operation 32
- 3.2.1. Startup 33
- 3.2.2. Warm Up 34
- 3.2.3. Warning Messages 35
- 3.2.4. Functional Check 36
- 04584 Rev A1 27 38
- SAMPLE CHAMBER 42
- 4.1. FAQ’s 44
- 4.2. Glossary 45
- (Normal State) 49
- Scrubber 51
- (Option 51) 51
- 5.5. Communication Options 52
- 5.6. Additional Manuals 53
- 5.8. Dilution Ratio Option 54
- 5.9. Maintenance Mode Switch 54
- 6. OPERATING INSTRUCTIONS 56
- 6.2. Sample Mode 57
- OFFSET 58
- 6.2.2. Warning Messages 59
- 6.3. Calibration Mode 61
- 6.4. SETUP Mode 63
- Configuration Information 64
- Continue to press 66
- until … 66
- Configuration 67
- 6.7.2. Reporting Range Modes 68
- 04584 Rev A1 59 70
- 6.7.6. Range Units 73
- 6.7.7. Dilution Ratio 74
- 04584 Rev A1 65 76
- 6.9.2. Signal I/O 78
- ANALOG OUT 81
- See Table 3-1 for 85
- IN OUT 86
- 6.9.5. Electric Test 88
- 6.9.6. Dark Calibration Test 89
- Repeat Pressing 89
- until . . 89
- 6.9.7. Pressure Calibration 89
- Communication Ports 93
- EXAMPLE 99
- 6.10.8. COM Port Testing 100
- From Step 1 above) 104
- Contact your IT 104
- Network Administrator 104
- KEY FUNCTION 105
- >\ 105
- Alarms 106
- 6.12.1. iDAS Structure 107
- 6.12.1.1. iDAS Channels 108
- 6.12.1.2. iDAS Parameters 109
- VIEW KEYPAD FUNCTIONS 114
- Editing iDAS Data Channels 115
- Trigger Events 116
- Editing iDAS Parameters 117
- (see previous section) 118
- 6.12.2.6. Number of Records 120
- RS-232 Report Function 121
- 6.12.2.8. Compact Report 122
- 6.12.2.9. Starting Date 122
- 6.12.2.11. HOLDOFF Feature 123
- 6.13.1.1. Status Outputs 126
- 6.13.1.2. Control Inputs 127
- Terminal Operating Modes 128
- 6.13.2.3. Command Syntax 129
- 6.13.2.4. Data Types 130
- 6.13.2.5. Status Reporting 131
- PRIMARY SETUP MENU 132
- COM Port Password Security 133
- Activating Hessen Protocol 135
- Hessen Protocol Gas ID 137
- 7. CALIBRATION PROCEDURES 140
- GFC7000E 141
- Continue Calibration as per 149
- Standard Procedure 149
- 04584 Rev A1 141 152
- To program the Sequence: 152
- 8. EPA PROTOCOL CALIBRATION 154
- 9.1. Maintenance Schedule 156
- Warn-up 158
- 9.3. Maintenance Procedures 159
- 9.3.3.2. Pressure Leak Check 161
- 10.1. Measurement Method 164
- with CO 166
- CO2 MEAS 167
- 10.2. Pneumatic Operation 169
- 10.2.1. Sample Gas Flow 170
- Sample Pressure Sensor 171
- Sample Flow Sensor 171
- 10.3. Electronic Operation 172
- 10.3.2. CPU 174
- 10.3.3.2. IR Source 175
- 10.3.3.3. GFC Wheel 175
- 10.3.3.4. IR Photo-Detector 176
- 10.3.4.1. Overview 176
- 10.3.4.3. Phase Lock Warning 178
- 10.3.5. Relay Board 179
- 10.3.5.1. Status LED’s 180
- STATUS LED’s 181
- DC VOLTAGE TEST 181
- RELAY PCA 181
- PN 04135 181
- 10.3.6.2. Sensor Inputs 182
- 10.3.6.4. Analog Outputs 183
- 10.3.7. I 184
- C Data Bus 184
- 10.4. Interface 185
- TST> CAL 186
- 10.4.1.2. Keyboard 187
- 10.4.1.3. Display 187
- Key Press 188
- 10.5. Software Operation 189
- 10.5.1. Adaptive Filter 190
- MSG CLR SETUP 195
- (As Displayed) 198
- CPU Status Indicator 200
- Mother Board 201
- P/N 04069 201
- CPU Status LED 201
- Relay Board Status LED’s 202
- 11.1.5. Gas Flow Problems 203
- 11.1.6.1. Flow is Zero 204
- 11.1.6.2. Low Flow 204
- 11.1.6.3. High Flow 205
- 11.1.6.6. Sample Pump 205
- 11.2. Calibration Problems 206
- 11.3.1.2. Bench Temperature 208
- 11.3.2. Excessive Noise 209
- 11.4. Subsystem Checkout 210
- 11.4.3. I 211
- 11.4.2. DC Power Supply 211
- 11.4.5. Relay Board 212
- 11.4.6. Sensor Assembly 213
- 11.4.6.3. GFC Wheel Drive 214
- 11.4.6.4. IR Source 214
- 11.4.7. Motherboard 215
- 11.4.7.4. Status Outputs 216
- 11.4.8. CPU 217
- 11.5. Repair Procedures 218
- 04584 Rev A1 214 225
- 04584 Rev A1 215 226
- 12.4.1. General Rules 227
- 04584 Rev A1 218 229
- 04584 Rev A1 219 230
- 04584 Rev A1 220 231
- 045840110 Rev B.3 223 234
- 045840110 Rev B.3 224 235
- 045840110 Rev B.3 225 236
- 045840110 Rev B.3 226 237
- 045840110 Rev B.3 227 238
- 045840110 Rev B.3 228 239
- 045840110 Rev B.3 229 240
- 045840110 Rev B.3 230 241
- 045840110 Rev B.3 231 242
- 045840110 Rev B.3 232 243
- CO_SPAN2 Conc. 40, 400 244
- RANGE_MODE — SNGL 244
- 045840110 Rev B.3 234 245
- 045840110 Rev B.3 235 246
- 045840110 Rev B.3 236 247
- 045840110 Rev B.3 237 248
- 045840110 Rev B.3 238 249
- computed during zero/span 250
- 045840110 Rev B.3 240 251
- 045840110 Rev B.3 241 252
- 045840110 Rev B.3 242 253
- 045840110 Rev B.3 243 254
- 045840110 Rev B.3 244 255
- 045840110 Rev B.3 245 256
- 045840110 Rev B.3 246 257
- 045840110 Rev B.3 247 258
- 048450130 Rev A1 251 262
- 045150130 Rev A1 252 263
- 045840140 Rev A1 253 264
- 04584 Rev A1 254 265
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