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Reference, Installation, and Operations Manual Section 6: Meter operation
3-9000-743 Rev U August 2014
Frequency outputs 217
Frequency value data points
The value of each frequency output is readable via a data point (Freq1ChnlA, Freq1ChnlB,
Freq2ChnlA, and Freq2ChnlB).
Volumetric flow rate content output scaling
When the frequency output pair represents either uncorrected or corrected volumetric flow
rate (selected via the FreqXContent data point), then the full-scale volumetric flow rate is
specified via the FreqXFullScaleVolFlowRate data point. This is the volumetric flow rate that
corresponds to the selected maximum frequency and determines the frequency output pair’s
K-Factor value (readable via the
FreqXKFactor data point). The minimum frequency output (0 Hz) corresponds to zero flow
rate.
Velocity content output scaling
When the frequency output pair represents either average gas or sound velocity (selected via
the FreqXContent data point), then the maximum scale velocity is specified via the
FreqXMaxVel data point and the minimum scale velocity is specified via the FreqXMinVel data
point. These points respectively correspond to the maximum frequency output (selected via
FreqXMaxFrequency) and the minimum frequency output (0 Hz).
Energy rate output scaling
When the frequency output pair represents the energy rate (selected via the FreqXContent
data point), then the full-scale energy rate is specified via the FreqXFullScaleEnergyRate data
point. This is the energy rate that corresponds to the selected maximum frequency and
determines the frequency output pair’s “energy K-Factor” value (readable via the FreqXEner-
gyKFactor data point). The minimum frequency output (0 Hz) corresponds to zero energy rate.
Mass rate output scaling
When the frequency output pair represents the mass rate (selected via the FreqXContent data
point), then the full-scale mass rate is specified via the
FreqXFullScaleMassRate data point. This is the mass rate that corresponds to the selected
maximum frequency and determines the frequency output pair’s “mass K-Factor” value
(readable via the FreqXMassKFactor data point). The minimum frequency output (0 Hz)
corresponds to zero mass rate.
Frequency feedback
Frequency feedback is applicable only when the frequency represents a rate (actual or standard
volumetric flow rate, energy rate, or mass rate). When frequency feedback is used, the
frequency output signal is fed-back into the processor so that error (due to frequency
quantization) can be corrected. Frequency quantization is what happens when the desired
frequency cannot be exactly represented (since infinite granularity cannot be achieved). The
FreqXFeedbackCorrectionPcnt data point specifies the percentage of the error correction.
Typically, this percentage is quite small since in most cases the error is quite small and fluctuates
“naturally” about zero. This point is not modifiable via the Daniel MeterLink
Field Setup Wizard
but is editable via the
Edit/Compare Configuration screen. It is recommended that the
FreqXFeedbackCorrectionPcnt not be modified from its default value of 1%. Setting
FreqXFeedbackCorrectionPcnt to zero effectively disables frequency feedback.
- Ultrasonic Gas Flow Meters 1
- Daniel customer service 3
- Signal words and symbols 4
- Important safety instructions 5
- Warranty and Limitations 8
- Contents 9
- Section 3: Installation 10
- Section 4: Optional features 11
- Section 6: Meter operation 12
- Contents v 13
- Contents vii 15
- List of Tables 17
- List of Tables xi 19
- List of Figures 21
- List of Figures xv 23
- Section 1: Introduction 25
- 1.3 What’s new 29
- Continuous Flow Analysis 30
- 1.5 References 31
- 8 References 32
- Section 2: Product overview 33
- 2.1.1 Advantages and Features 34
- 2.2 Component parts 35
- Upper explosion-proof housing 36
- Base Unit 37
- Connections 40
- Connection 40
- 2.2.2 Model 3400 meter body 41
- 2.2.3 Model 3422 meter body 42
- 2.2.4 Model 3410 meter body 43
- 2.2.5 Model 3420 meter body 44
- 2.2.6 Transducers and cabling 45
- 2.3.1 The application 46
- 2.3.2 Available meter sizes 46
- 2.3.3 Pressure range 46
- 2.3.4 Flow range limits 47
- 2.3.5 Flange types 48
- 2.3.6 Gas temperature range 48
- 2.3.7 Repeatability 48
- 2.3.8 Accuracy limits 48
- 2.4 Electronic specifications 49
- 2.5 Hardware features 50
- Cable length TTL mode 51
- Digital outputs 52
- 2.5.3 Status Indicators 53
- 30 Status Indicators 54
- Status Indicators 31 55
- 32 Status Indicators 56
- Status Indicators 33 57
- 34 Status Indicators 58
- 2.6 Communications 59
- 36 Communications 60
- 2.7 Safety 61
- 2.7.1 INMETRO Certifications 62
- 2.8 FCC Compliance 63
- 40 FCC Compliance 64
- 40 Installation instructions 66
- Ultrasonic Meters 74
- 3.3 Mechanical installation 77
- 52 Meter body installation 78
- End Cap Security Seals 80
- Ground Lug 81
- Attachment 81
- (+) White or Blue 83
- (-) Black or Gray 83
- SShield 83
- 3.4 Wiring and Connections 86
- Table 3-8 J2 Power 87
- - (Temperature) 88
- - (Pressure) 89
- - RX/TX 90
- Table 3-20 J16 Port C 91
- Table 3-21 J8 Ethernet Port 91
- Table 3-19 J7 Port B 91
- 3.5 Hardware Switch Settings 92
- Hardware Switch Settings 67 93
- 68 Hardware Switch Settings 94
- Hardware Switch Settings 69 95
- Hardware Switch Settings 71 97
- 72 Hardware Switch Settings 98
- 3.5.1 Communication settings 99
- Port A Driver Configuration 100
- 3-9000-743 Rev U August 2014 101
- Communication settings 75 101
- Port B Driver Configuration 102
- Communication settings 77 103
- Port C Driver Configuration 104
- August 2014 3-9000-743 Rev U 106
- Board Switch Position 107
- S12-2 SINK 110
- S12-3 SINK 110
- OPEN CLOSED 114
- 4.1.2 Obtaining optional keys 120
- 4.1.3 Optional Ethernet key 120
- 4.1.7 Key status 121
- 5.1 Communications 123
- 98 Communications 124
- Communications 99 125
- 5.2 Communications setup 126
- ASCII 1 7 odd or even 1 127
- RTU 1 8 none 1 127
- Meter Type as Mark III 131
- OK button to apply the 131
- Serial port configurations 135
- Display Name 136
- F1 shortcut key. For help 146
- 122 Configuration protection 148
- Display button.) 149
- Tools>Edit/Compare 149
- Configurations 149
- See Section 5.6.6 151
- Page Description 151
- 5.6.5 Startup page 158
- Startup page 133 159
- 134 Startup page 160
- Startup page 135 161
- 136 Startup page 162
- 5.6.6 General Page 163
- 5.6.7 Frequency Outputs Page 164
- 5.6.8 Current Outputs Page 166
- Current Outputs Page 141 167
- 142 Current Outputs Page 168
- Current Outputs Page 143 169
- 5.6.9 HART® Output Page 170
- HART® Output Page 145 171
- 5.6.10 Meter Digital outputs 172
- Meter Corrections page 147 173
- 148 Meter Corrections page 174
- 5.6.14 AGA 8 Setup page 181
- 156 AGA 8 Setup page 182
- Analysis Page 183
- 5.6.16 Set Baseline Wizard 185
- 5.7.1 Update Time Wizard 186
- Update Time Wizard 161 187
- 5.7.2 Calculated results 188
- Write button to 190
- Dry calibration 191
- online help 191
- Wet calibration 193
- Polynomial Wet Calibration 195
- Duration (mins): 200
- 5.9.1 Log Format 201
- Comma-Separated Values 202
- Log Format 177 203
- Raw Data 205
- 182 Measurement 208
- 6.1.1 Terminology 209
- 6.1.2 Signal processing 210
- 6.1.3 Batch cycle processing 211
- 6.1.4 Acquisition mode 212
- 6.1.6 Average sound velocity 214
- Average sound velocity 189 215
- 6.1.8 Calibration 219
- 194 Calibration 220
- 6.1.9 Volumetric flow rate 222
- Volumetric flow rate 197 223
- 198 Volumetric flow rate 224
- Volumetric flow rate 199 225
- 200 Volumetric flow rate 226
- 6.1.10 Volume 227
- Suggested user access logic 228
- 6.1.12 Energy rate and totals 229
- 6.1.13 Mass rate and totals 230
- Symmetry 231
- Cross-flow 231
- Chord turbulence 231
- Profile Factor 232
- Swirl angle 232
- Configuration 232
- Data updates 233
- 6.1.16 Gas properties 236
- Gas composition data points 237
- Live (GC) gas property data 238
- “In-Use” gas property data 239
- Table 6-10 C 240
- 6.2.1 Frequency outputs 241
- Frequency data content 242
- Frequency data flow direction 242
- Channel “B” phase 242
- Maximum frequency 242
- Field Setup Wizard 243
- Frequency test mode 244
- 6.2.2 Digital outputs 245
- Digital output test mode 246
- 6.2.3 Analog (Current) output 247
- Energy rate output scaling 248
- Mass rate output scaling 248
- Outputs test mode 249
- 224 Analog (Current) output 250
- 6.3 Digital Input 251
- 6.4 Modbus communication 252
- 6.4.2 Log record access 253
- 6.5.1 Hardware configuration 254
- 6.5.2 Software configuration 254
- 6.5.3 Gas property data 254
- 6.5.4 Data polling 255
- 6.5.5 GC data validity 256
- 6.5.6 GC alarm handling 256
- 6.6 Archive logs 257
- 232 Daily log 258
- PrevDayMacro1*: 259
- PrevDayMacro2*: 259
- Data Point Log action 259
- 234 Daily log 260
- ™ meters) 261
- 6.6.2 Hourly log 262
- Hourly log 237 263
- 238 Hourly log 264
- 6.6.3 Audit log 265
- Table 6-20 Audit log content 266
- 6.6.4 Alarm log 276
- Alarm log 251 277
- 252 Alarm log 278
- 6.6.5 System log 279
- 6.6.6 Reading log records 279
- 254 Reading log records 280
- “Attempt 282
- FTP-only connection….” 282
- 6.9.1 RAM integrity 284
- 6.9.2 Program integrity 284
- 6.9.3 Stored data integrity 284
- 6.9.4 Hardware watchdog 284
- 6.9.6 Log transfer integrity 285
- 6.9.7 Data value limit checks 285
- Procedures 288
- Procedure 292
- Important 293
- Determining the “L” Value 297
- Acquisition board 298
- Backplane 298
- I.S. Interface board 298
- Power supply 298
- CPU module 298
- Ethernet Connections 299
- Direct Serial Connections 300
- Trusted Publishers)tab 301
- Windows® 303
- 7.5.1 Meter Status Alarms 304
- 7.5.2 System Alarm 305
- 7.5.3 Chord A to Chord D 306
- 7.5.4 Field I/O Alarm 306
- 7.5.5 Validity Alarm 306
- 7.5.6 Comms Alarm 306
- 7.5.7 Check Status 306
- Appendix A Conversion factors 317
- FullSc ale 319
- FullScale 319
- C.1 Meter electronics upgrade 323
- C.2 What’s new In Mark III 323
- C.3 Modbus Communication 326
- Configuration conversion 303 327
- –()MeterFactor⋅= 328
- C.4.3 Gain 331
- C.4.6 Chord failure threshold 332
- C.4.8 Inactive chords 333
- C.4.9 AlarmDef 333
- C.4.12 AGA8 method 335
- C.4.13 Minimum hold time 335
- C.4.14 Log Format parameters 335
- 312 Log Format parameters 336
- Results (Enter here) 347
- Description 347
- “Internally Powered” 348
- “Open Collector” 348
- F.1 Flow Rate Summary Charts 355
- 332 Flow Rate Summary Charts 356
- Flow Rate Summary Charts 333 357
- 334 Flow Rate Summary Charts 358
- Section 3.5.8) 359
- LowFlowLmt 365
- H.1 Open source licenses 369
- H.1.2 BSD Open Source License 383
- H.1.3 M.I.T. License 384
- H.1.4 Mird License 385
- 362 Mird License 386
- I.1 Ultrasonic Meter Drawings 387
- Appendix J Index 393
- 366 Manual Index 394
- Manual Index 367 395
- 368 Manual Index 396
- Manual Index 369 397
- 370 Manual Index 398
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