Vaisala WINDCAP WS425 Guía de usuario Pagina 55
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Chapter 3 _______________________________________________________ Functional Description
NOTE
The scaling of the current output 4…20 mA depends on the sensor
measurement range (WMT701, WMT702, or WMT703), while the
0…20 mA output has 0.2 mA / m/s scaling for all the measurement
ranges.
Table 20 and Table 21 below list the most common settings for
different units.
Table 20 Common Transfer Function Settings for
AOUT1 (WS)
Output Signal
Scaling/Units
Setting for Gain
Setting for Offset
Voltage
8 mV / mph
100 mV / m/s
0.017895
0.1
0
0
Current
0.2 mA / m/s
0.0002
0
Frequency
5 Hz / mph
10 Hz / m/s
11.185
10
0
WS425 - voltage
8 mV / mph
0.017895
0
WS425 - frequency
5 Hz / mph
11.185
0
Table 21 Common Transfer Function Settings for
AOUT2 (WD)
Output Signal
Scaling/Units
Setting for Gain
Setting for Offset
Voltage
4 mV / °
20 mV / °
0.004
0.02
0
0
Current
50 uA / degree
0.00005
0
Potentiometer
359° = Aout ref
0.0027855
0
You can configure output scaling or transfer function settings in a
variety of ways by changing the custom gain and offset. The basic
measurement units are m/s and degrees. The physical output units
are V, A, and Hz. For the potentiometer, an output of 1 means
100% of the Aout ref voltage.
The following formula illustrates the impact of gain and offset
values on the produced output:
o = y0 + k×s
where
o
=
Produced analog output (V, A, Hz, 100%)
s
=
Measured wind speed or direction (in m/s or °)
k
=
Selected gain value
y0
=
Selected offset value
VAISALA ________________________________________________________________________ 53
- Planning Guide 0
- Configuring call direction 5
- Glossary 9
- SWD-1000192-0414013325-001 11
- Provide feedback 12
- Legal notice 13
- Contents 16
- Overview 17
- Requirements 18
- System requirements: PBX 21
- Welcome to Verizon Wireless 23
- The Basics 24
- (see page 18) 38
- THE BASICS 40
- Assistance 41
- Mobile Entertainment 53
- Optional Services 84
- More Information 91
- MORE INFORMATION 110
- USER'S GUIDE 120
- WARNING 122
- Using Standard WMT700 Cables 123
- WS425 Analog Output Signals 128
- OPERATION 131
- List of Tables 132
- Configuration 135
- Parameter Handling Commands 136
- S — Set Parameter 137
- G — Get Parameter 138
- Set Port Settings 139
- Display Port Settings 139
- START — Start Continuous 140
- Measurement 140
- STOP — Stop Wind Measurement 140
- ERRORS — Get Error Codes and 141
- Information Commands 142
- Configuration Parameters 144
- Configuring Data Messages 145
- Data Messages 146
- Status Flags 149
- Operating WMT700 152
- GENERAL INFORMATION 154
- WMT700 Data Message 21 156
- WMT700 Data Message 22 156
- WMT700 Data Message 23 157
- WMT700 Data Message 24 158
- WMT700 Data Message 25 159
- Missing Readings 160
- Error Indication 161
- Measurement Mode Commands 162
- MEAS — Start Measurement 163
- POLL — Poll Data 164
- SLEEP — Enter Low-Power Mode 164
- Version Information 165
- Related Manuals 165
- @a M 12<CR><LF> 166
- Output Mode 167
- Output Operation Mode 168
- Wind Speed Output 169
- Voltage 170
- Wind Direction Output 171
- S aout1minv,0.1 172
- S aout1maxv,5 172
- S aout1err,1 172
- Profiles 173
- Communication Profiles 173
- Entering Configuration Mode 175
- Documentation Conventions 176
- WS425 F/G ASOS Profile 177
- WS425 F/G ASOS Commands 178
- Direction 179
- WS425 F/G ASOS Data Message 181
- WAP2131870503012.6014.7K99xx 182
- Configurable Parameters 183
- WS425 A/B NMEA Standard Data 184
- Message 184
- WS425 A/B NMEA Extended 186
- Commands 186
- Recycling 187
- WS425 A/B NMEA Extended Data 188
- WS425 A/B ASCII Profile 189
- WS425 A/B ASCII Commands 190
- WS425 A/B WAT11 Profile 193
- SDI-12 Profile (v 1.3) 195
- SDI-12 Commands 197
- Regulatory Compliances 198
- ?! — Address Query 199
- SDI-12 Data Messages 207
- Trademarks 209
- Warranty 209
- MAINTENANCE 211
- Periodic Maintenance 212
- Visual Inspection 212
- Cleaning 212
- Testing Proper Operation 213
- 1005-003 214
- TROUBLESHOOTING 215
- Error and Event Messages 217
- PRODUCT OVERVIEW 220
- Technical Support 221
- Product Returns 221
- TECHNICAL DATA 222
- Table 62 Accessories 225
- Dimensions 226
- 1103-055 227
- COMPLETE COMMAND SET FOR 228
- TYPICAL SYSTEM ENVIRONMENTS 230
- 1003-005 232
- 1003-052 233
- 1003-053 234
- 1004-001 235
- DEFAULT SETTINGS FOR 236
- DIFFERENT COMMUNICATION 236
- PROFILES 236
- CONFIGURATION PARAMETERS 240
- 1104-065 243
- WMT700 NMEA MWV PROFILE 245
- WMT700 NMEA MWV Commands 247
- WMT700 NMEA MWV Data Message 248
- ACCESSORIES 249
- 1304-061 250
- CERTIFICATES 253
- 1104-064 254
- *M211095EN* 256
- 1305-001 257
- 1305-002 257
- 1305-003 258
- 1305-004 258
- Ordering Options 259
- Heating 260
- Digital Communication Units 261
- Channel 263
- Connection Cables 263
- Table of Contents 264
- Mounting Adapters 265
- Accessories 265
- Bird Cage 268
- WM Verifier 269
- Table 17 Cables 270
- Cable Tightening Tool 271
- FUNCTIONAL DESCRIPTION 272
- 1005-007 273
- 1104-066 274
- CHAPTER 4 275
- Calculations 276
- 0212-044 277
- Scalar Averaging 278
- Vector Averaging 279
- Measurement Methods 280
- Serial Communication 283
- Protocols 285
- CHAPTER 5 286
- 1001-111 287
- Serial Interface Timing 288
- Analog Output 289
- Figure 18 Frequency Output 290
- Analog Output Scaling 291
- Missing Readings and Error 294
- Indication 294
- INSTALLATION 296
- 1001-016 299
- Installation Procedure 302
- Mounting 303
- 1306-029 304
- 1306-140 305
- 1006-077 306
- 1006-078 307
- 1006-079 310
- 1006-080 311
- 1306-033 312
- 1103-054 313
- Alignment 315
- Installing Bird Cage 316
- 1104-086 317
- APPENDIX E 319
- APPENDIX F 319
- APPENDIX G 319
- 1009-016 321
- Connector Signals 323
- Heated Transducers and Arms 325
- Powering 326
- 1301-017 327
- 1104-054 328
- 1104-055 328
- Heating Power 329
- List of Figures 330
- CAUTION 331
- 1104-081 334
- 1104-082 335
- 1104-083 336
- Before You Start 337
- Mounting Procedure 339
- Tightening Connector 340
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