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Chapter 8. Servicing the PT878
168 Transport® Model PT878 Portable Liquid Flowmeter User’s Manual
8.4.5 Calculating Velocity (Pipe Material Soundspeed)
The nominal soundspeed for your pipe material will give thickness
measurements of reasonable accuracy. However, for greater accuracy,
calibrate pipe material sound velocity.
IMPORTANT: This step is necessary only if the actual pipe material
soundspeed differs from the soundspeed of the material
used in the calibration block. It is possible only if you have
a sample of pipe material with thickness known to a high
level of precision.
To open the Velocity window, press the [
W] or [X] arrow key until you
reach the Velocity tab and press
[ENTER]. The screen appears similar to
Figure 113 below.
Figure 113: Soundspeed Window
1. Scroll to the Velocity tab as shown in Figure 113 above. Press [ENTER].
Display
Thickness Gauge Measure
Cancel OK
Velocity
Graph Zero
Material
Block Length 0
Calculated Current
Determine the Sound Speed
- TransPort® Model PT878 1
- Information Paragraphs 5
- Safety Issues 5
- Environmental Compliance 7
- Contents 10
- 1.1 Overview 17
- 1.1 Overview (cont.) 18
- 1.2 System Description 18
- 1.2.1 The Flowcell 18
- 1.3 Theory of Operation 20
- Chapter 2. Initial Setup 21
- • Transducers 22
- • Input/Output 22
- • Infrared Interface 22
- 2.1.1 Power Connections 23
- 2.1.2 Transducer Connections 23
- 2.2.2 Replacing the Batteries 26
- 2.2.3 Disposing of Batteries 27
- 2.3 Powering ON and OFF 28
- 2.4.1 Screen 31
- 2.4.1 Screen (cont) 32
- 2.4.2 Keypad (cont.) 34
- T] key to reach the 45
- T] or [S] 47
- X] key to scroll down by 47
- [ENTER].)The 53
- [F3] (OK).The 55
- • Traverses 56
- • Spacing 56
- [ENTER]. The screen appears 58
- 3.8 Entering Analog Inputs 66
- Analog Input 66
- Cancel OK 67
- Analog Output 70
- • Forward Totalizer 74
- • Reverse Totalizer 74
- • Forward Energy 74
- • Reverse Energy 74
- 3.11 Entering User Functions 77
- Figure 38: Site Menu 87
- 4.1 The Site Manager 88
- Figure 40: Site Manager Menu 89
- 4.1 The Site Manager (cont.) 90
- 4.1.1 Creating a New Site 90
- 4.1.3 Saving a Site 93
- 4.1.7 Deleting a Site 96
- 4.1.8 Creating a Site Message 97
- 4.1.9 Printing a Current Site 99
- [ENTER] 100
- Figure 51: QuickBeam Window 101
- Figure 54: Wireless Link Icon 103
- 4.1.13 Listing Files by Name 104
- E0: No Errors 105
- [SEL] from the Operate 105
- [SEL] enables 105
- [ENTER] button opens the 105
- 5.1 The Format Option 106
- T] or [S] key 106
- Velocity, ft/s 108
- Delta-T, ns 108
- Volume, l/s 108
- Signal, dB 108
- 5.3 The Limits Option 109
- 5.4 The Measurement Option 111
- Configure FKey 116
- Velocity, m/s 117
- Gain, dB 117
- 1. Press [MENU] 118
- [ENTER]. The 119
- [F2] (Refresh) 123
- 5.6.4 Deleting a File 124
- 5.6.5 Listing Files by Name 125
- [F2] (Next) 126
- [ESC] or [F3] (Exit) 126
- 6.3 The Battery Charger 130
- 6.4 Entering Date and Time 131
- [F3] (OK). The 135
- [F2] (Cancel) 135
- 6.6 Adjusting the Contrast 136
- W] key to move to 136
- Vitesse, m/s 139
- W] and [X] keys to scroll to 140
- 6.11 Setting Up User Tables 143
- Chapter 7. Logging Data 147
- 7.2 The Log Manager 149
- W] and [X] keys 149
- 7.3 The File Menu 150
- 7.3.1 Setting up a New Log 151
- Select Measurement 155
- 7.3.3 Renaming a Log 157
- 7.3.4 Deleting a Log 157
- 7.3.4 Deleting a Log (cont.) 158
- 7.3.5 Deleting All Logs 158
- 7.3.7 Printing a Log 159
- 7.3.7 Printing a Log (cont.) 160
- 7.4 The Log Menu 161
- 7.4.2 Restarting a Log 162
- 7.4.3 Ending a Log 162
- 7.4.4 Stopping All Logs 163
- 7.4.5 Restarting All Logs 163
- 7.4.6 Ending All Logs 163
- 7.4.7 View All Sites 163
- 7.5 The View Menu 164
- 7.5.1 Displaying Log Details 165
- 7.6 The Sort Menu 170
- 7.6.1 Listing Logs by Name 170
- 8.2 Printing Reports 173
- 8.2 Printing Reports (cont.) 174
- X] arrow key 176
- [F2] (Out) to zoom out fully 180
- W] or [X] 181
- T] arrow key and then 185
- 8.7.2 Calibrating Inputs 192
- • Transmit Sample Size 194
- Errors Allowed 194
- 8.9 Setting Error Limits 200
- 8.10.1 Testing the Screen 204
- 8.10.2 Testing the Keys 205
- Dew Point, °C 206
- Pressure, PSIg 206
- Run Time, Hours 206
- Stop Exit 207
- 8.10.7 Testing the Battery 209
- 8.12 Updating PT878 Software 211
- 6. You now have two options: 213
- 8.12.2a Setting up the PC 214
- • Transducers and cables 219
- 9.1 Error Code Messages 220
- Soundspeed 222
- 9.3 Flowcell Problems 224
- 9.3.1 Fluid Problems 224
- 9.3.2 Pipe Problems 225
- 9.4 Transducer Problems 226
- 3. INTERNAL DAMAGE 227
- 4. PHYSICAL DAMAGE 227
- 1. POOR COUPLING TO PIPE 227
- 2. MISALIGNMENT 227
- 9.4.3 Relocating Transducers 228
- Chapter 10.Specifications 229
- 10.2 Electrical 230
- Chapter 10. Specifications 231
- 10.4 Transducer 233
- 10.5 Pipe Size and Material 233
- 10.6 Available Options 234
- Program Meter Logging Service 235
- Appendix A. Menu Maps 236
- Figure 138: Site Menu 237
- Figure 140: Meter Menu 239
- Figure 141: Logging Menu 240
- Figure 142: Service Menu 241
- Figure 143: Transducer Option 243
- Figure 144: Lining Option 244
- Figure 145: Fluid Option 245
- Figure 146: Path Option 246
- Figure 147: Energy Option 247
- Pipe Thickness 255
- Pipe O.D 255
- • the wall thickness (WT) 256
- • the mounting angle (MA) 256
- • inside diameter (ID) = 48” 257
- • wall thickness (WT) = 3/8” 257
- • mounting angle (MA) = 45° 257
- C.2 Mounting RTDs on the Pipe 260
- • a screw buckle 260
- • a feeder buckle 260
- Operation 265
- E.1 Product Identification 269
- E.2 Hazardous Ingredients 269
- E.3 Physical Data (nominal) 270
- E.5 Reactivity Data 270
- E.8 Control Measures 272
- Appendix G. Glossary 275
- Warranty 291
- Return Policy 292
- GE Infrastructure 293
- Customer Support Centers 297
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