GE PT878GC Manuale Utente Pagina 39
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3-7
April 2004
Performing a Pipe Survey (cont.)
4. Now measure the OD and the wall thickness at eight points
along the pipe circumference at 45° intervals (shown in Figure
3-6 below), three times per point, and record the mean values.
Figure 3-6: Measuring the OD and Pipe Wall Thickness
5. Prepare the pipe for the dampening material by removing any
rust or loose paint and sanding down any rough spots in an
area 12 in. long around the circumference of the pipe. Take
care to preserve the original pipe curvature.
6. At the approximate location of each transducer, prepare an
area 100 mm (4 in.) long by 50 mm (2 in.) wide for CRV type
transducers and 100 mm wide for CRW type transducers.
Remove any paint or rust, and polish the cleared area, taking
care to preserve the original curvature of the pipe.
OD
1
OD
2
OD
3
OD
4
W
1
W
2
W
3
W
4
W
8
W
7
W
6
W
5
- TransPort™ PT878GC 1
- Portable Gas Flowmeter 2
- Warranty 3
- Return Policy 4
- Table of Contents (cont.) 10
- Chapter 1 14
- Features and Capabilities 14
- Overview (cont.) 15
- System Description 16
- Electronics Package 17
- Theory of Operation 18
- Chapter 2 19
- Initial Setup 19
- Making Electrical Connections 20
- • Transducer 20
- • Analog Input/Output 20
- • Infrared Interface 20
- Transducer Connections 21
- 2-4 Initial Setup 22
- Charging the Batteries 23
- Replacing the Batteries 24
- Powering On and Off 25
- Powering On and Off (cont.) 26
- Initial Setup 2-9 27
- Using the Screen and Keypad 28
- Screen (cont) 29
- 2-12 Initial Setup 30
- Keypad (cont.) 31
- S] and [T] arrow keys to 32
- Table of Contents 32
- Chapter 3 33
- Installing the Dampening 33
- Material, Transducers and 33
- Fixtures 33
- Application Requirements 35
- *Use 200 kHz 36
- Preparing the Pipe 37
- Performing a Pipe Survey 38
- Installing the Fixture 41
- Installing the Transducers 43
- Surveying the Pipe 45
- Surveying the Pipe (cont.) 46
- Series Fixtures 53
- Series Fixtures (cont.) 54
- Chapter 4 62
- Programming Site Data 62
- Entering the Program Menu 63
- [ENTER]. The screen appears 64
- T] key to reach 66
- X] key to reach the 66
- T] key to reach the 66
- Entering Pipe Parameters 68
- 4-8 Programming Site Data 69
- [ENTER] to 70
- 4-10 Programming Site Data 71
- [ENTER].) The screen 72
- W ] or [X] key 73
- • Natural Gas 74
- [ENTER].) The screen appears 76
- • Traverses 77
- • Spacing 77
- Entering the Standard Volume/ 78
- Mass Flow Parameters 78
- 4-18 Programming Site Data 79
- [ENTER] to open 80
- 4-20 Programming Site Data 81
- Programming Site Data 4-21 82
- Entering Mass Flow Parameters 83
- Programming Site Data 4-23 84
- Programming Site Data 4-25 86
- Programming Site Data 4-27 88
- from 0 to 89
- [ENTER] at the Measure Only 90
- Programming Site Data 4-31 92
- Entering Analog Inputs 95
- Programming Site Data 4-35 96
- 4-36 Programming Site Data 97
- Flow Option 98
- Analog Input 98
- Mass Flow Option (cont.) 99
- Entering the Analog Output 100
- Select Measurement 101
- Programming Site Data 4-41 102
- April 2004 102
- Digital Output 103
- Programming Site Data 4-43 104
- S] or [T] key to 105
- Programming Site Data 4-45 106
- Entering User Functions 107
- Programming Site Data 4-47 108
- April 2004 109
- 4-48 Programming Site Data 109
- Programming Site Data 4-49 110
- Entering Correction Factors 111
- [ENTER] to open the text box 112
- [ENTER] to confirm the entry 113
- Entering a Calibration Factor 114
- [F3] (OK) 116
- 4-56 Programming Site Data 117
- Chapter 5 118
- Creating and Managing Sites 118
- The Site Manager 119
- Creating a New Site 121
- Creating a New Site (cont.) 122
- Opening an Existing Site 123
- Saving a Site 124
- Refreshing a Site 126
- Renaming a Site 126
- Deleting a Site 127
- Creating a Site Message 128
- [F3] (OK) to 129
- Printing a File 130
- Transferring a File as Text 131
- Listing Files by Name 134
- Velocity, ft/s 135
- Delta-T, ns 135
- Volume, l/s 135
- Signal, dB 135
- The Format Option 136
- The Format Option (cont.) 137
- [ENTER] 138
- E0: No Errors 138
- The Limits Option 139
- The Limits Option (cont.) 140
- The Measurement Option 141
- T] arrow key. The 143
- Customizing Softkeys 145
- Configure FKey 146
- Customizing Softkeys (cont.) 147
- [MENU] and 149
- Refreshing a File 150
- Transferring a File to a PC 150
- Deleting a File 153
- Chapter 7 156
- Programming Meter Settings 156
- X] arrow key twice to scroll 157
- T] or [S] arrow keys 157
- Selecting Measurement Units 158
- [ESC] key 159
- The Battery Charger 160
- The Battery Charger (cont.) 161
- Entering Date and Time 162
- T] key once to scroll to the 163
- T] key twice changes the 163
- (Locale) 164
- •YYYY/MM/DD (year/month/day) 165
- •MM/DD/YYYY (month/day/year) 165
- •DD/MM/YYYY (day/month/year) 165
- Adjusting the Contrast 167
- (Cancel) or the [ESC] key 168
- Setting Backlight Timeout 169
- •Baud Rate -- 9600 171
- •Parity -- None 171
- •Stop Bits -- 1 171
- •Data Bits -- 8 171
- W ] and [X] keys to 172
- Setting Up User Tables 174
- [F3] (OK) to confirm the 177
- [F2] (Cancel) or the [ESC] 177
- Chapter 8 179
- Logging Data 179
- X] arrow key three 180
- The Log Manager 181
- The File Menu 182
- Setting up a New Log 183
- Setting up a New Log (cont.) 184
- Renaming a Log 189
- Deleting a Log 189
- Deleting All Logs 190
- Refreshing a Log 190
- Deleting a Log (cont.) 190
- Printing a Log 191
- Transferring a Log to a PC 191
- The Log Menu 192
- Stopping (Pausing) a Log 193
- Restarting a Log 193
- Ending a Log 193
- Pausing All Logs 194
- Restarting All Logs 194
- Ending All Logs 194
- View All Sites 194
- The View Menu 195
- Displaying Log Details 196
- [F1] (Scale). The 197
- [F2] (Time). The 197
- [F3] (Exit) 197
- [F2] (Cancel) to cancel the 198
- T] key twice 199
- [F1] (Time). The Enter Time 200
- The Sort Menu 201
- Chapter 9 202
- Servicing the PT878GC 202
- X] arrow key four 203
- Printing Reports 204
- Printing Reports (cont.) 205
- Servicing the PT878GC 9-5 206
- 9-6 Servicing the PT878GC 207
- Measuring Pipe Wall Thickness 208
- W ] or [X] arrow key 210
- 9-10 Servicing the PT878GC 211
- T] to select the graph 212
- Servicing the PT878GC 9-13 214
- T] arrow key to move to the 216
- 9-16 Servicing the PT878GC 217
- Servicing the PT878GC 9-17 218
- W ] and [X] arrow 219
- 9-20 Servicing the PT878GC 221
- Calibrating the Analog Output 222
- T] arrow 222
- 9-22 Servicing the PT878GC 223
- Calibrating Inputs 224
- X] arrow key and press 224
- 9-24 Servicing the PT878GC 225
- • Transmit Sample Size 226
- Errors Allowed 226
- Setting up Signal Parameters 227
- Servicing the PT878GC 9-27 228
- 9-28 Servicing the PT878GC 229
- X] arrow 231
- [ENTER]. The screen 233
- Setting Error Limits (cont.) 234
- The Test Option 236
- Testing the Screen 237
- Testing the Keys 238
- Dew Point, °C 239
- Pressure, PSIg 239
- Run Time, Hours 239
- Stop Exit 240
- 9-40 Servicing the PT878GC 241
- Testing the Battery 242
- 9-42 Servicing the PT878GC 243
- Updating PT878GC Software 244
- Updating Software Via IrOBEX 245
- Infrared 246
- Updating Software Via IrCOMM 247
- Setting up the PC 247
- Setting up the PC (cont.) 248
- Installing New Software 248
- 9-48 Servicing the PT878GC 249
- Servicing the PT878GC 9-49 250
- Chapter 10 251
- Error Code Messages 252
- Displays Good Bad 257
- Flowcell Problems 259
- Fluid Problems (cont.) 260
- Pipe Problems 260
- Transducer Problems 261
- Chapter 11 262
- Specifications 262
- Operation and Performance 263
- Pressure Requirements, Air 264
- Measurement Parameters 264
- Electronics 265
- Specifications 11-5 266
- 11-6 Specifications 267
- Transducer Cables 268
- Thickness Gauge Option 269
- Additional Options 269
- Appendix A 270
- Menu Maps 270
- Figure A-2: The Site Menu 271
- M>S Switch 275
- Figure A-8: The Meter Menu 277
- Figure A-9: The Logging Menu 278
- Transmit 279
- Menu Maps A-11 280
- Appendix B 281
- Windows 2000/XP 282
- Windows NT4.0 282
- Windows Me/98SE/98/95 283
- Appendix C 284
- Ultrasonic Thickness Gauge 284
- Accuracy 285
- Appendix D 289
- Couplants 289
- Index (cont.) 291
- DECLARATION OF 304
- CONFORMITY 304
- DECLARATION DE 305
- CONFORMITE 305
- KONFORMITÄTS 306
- ERKLÄRUNG 306
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