Vaisala WXT530 Series - Wind Measurement Principle

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WXT530 Series User Guide M211840EN-D

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Default Chapter2
- Table of Contents2
1 About this Document10
- Documentation Conventions10
- Trademarks10
- ESD Protection11
- Version Information11
  - Document Versions11
2 Product Overview12
- WXT530 Series Weather Transmitters12
- Components18
- Figure 6 WXT536 Components18
- Figure 7 Cut-Away View of WXT53619
- Optional Features20
- Backward Compatibility26
- Regulatory Compliances26
3 Functional Description28
- Wind Measurement Principle28
- Precipitation Measurement Principle29
- PTU Measurement Principle30
- Heating31
- Table 3 Heater Resistance31
- Analog Input Interface32
- Analog Output Interface32
- Figure 15 Analog Inputs for External Sensors32
4 Installation34
- Installing WXT53034
  - Maritime Installations34
- Placing WXT53034
- Figure 16 Recommended Mast Location in Open Area35
- Figure 17 Recommended Mast Length on Top of Building36
- Unpacking WXT53037
- Figure 18 Contents of Shipping Container37
- Figure 19 Installing with Protective Packaging38
- Mounting WXT53039
- Grounding46
  - Grounding with Bushing and Grounding Kit46
- Aligning WXT53047
- Installing Vaisala Configuration Tool50
- Installing USB Cable Driver52
5 Wiring and Power Management54
- Power Supplies54
- Figure 23 Average Operational Current Consumption (with 4Hz Wind Sensor Sampling)55
- Figure 24 Heating Instant Current and Power Vs Vh (WXT536, WXT535, WXT533, and WXT532)56
- Figure 25 Heating Instant Current and Power Vs Vh (WXT531)56
- Power Management57
- Table 4 Standby Power Consumption57
- Table 5 Economic Power Management58
- Wiring with 8-Pin M12 Connector59
- Wiring Using Screw Terminals65
- Figure 27 Internal Wiring for RS-232, SDI-12, and RS-48565
- Figure 28 Screw Terminal Block66
- Table 14 Screw Terminal Pin-Outs for Serial Interfaces and Power Supplies66
- Data Communication Interfaces68
- Figure 29 Data Communication Interfaces68
- Figure 30 Termination Jumper Positions69
6 Connection Options70
- Communication Protocols70
- Connection Cables70
- Table 15 Available Serial Communication Protocols70
- Connecting with Service Cable71
- Communication Setting Commands73
7 Retrieving Data Messages78
- General Commands78
- ASCII Protocol82
- Protocol91
- NMEA 0183 V3.0 Protocol103
8 Sensor and Data Message Settings118
- Sensor Configuration and Data Message Formatting118
9 Maintenance148
- Cleaning148
  - Cleaning the Radiation Shield148
- Replacing PTU Module148
10 Troubleshooting152
- Table 34 Data Validation152
- Table 35 Communication Problems153
- Self-Diagnostics154
11 Technical Specifications158
- Performance158
- Table 37 WXT530 Series Barometric Pressure Measuring Specifications158
- Table 38 WXT530 Series Air Temperature Measuring Specifications158
- Table 39 WXT530 Series Relative Humidity Measuring Specifications158
- Table 40 WXT530 Series Precipitation Measuring Specifications159
- Table 41 WXT530 Series Wind Measuring Specifications159
- Inputs and Outputs160
- Table 42 WXT530 Series Electrical Specifications160
- Table 43 WXT536 Analog Input Options161
- Table 44 WXT532 Analog Ma Output Options161
- Environmental Conditions162
- Table 45 WXT530 Series Environmental Specifications162
- Table 46 WXT530 Series Electromagnetic Compatibility162
- Mechanical Specifications163
- Table 47 WXT530 Series Mechanical Specifications163
- Options and Accessories164
- Table 48 Options and Accessories164
- Type Label165
- Figure 34 Type Label165
- Dimensions (MM / Inch)166
- Figure 35 WXT536 Dimensions in MM [In]166
- Figure 36 WXT535 and WXT534 Dimensions in MM [In]167
- Figure 37 WXT533 and WXT532 Dimensions in MM [In]168
- Figure 38 WXT531 Dimensions in MM [In]169
- Figure 39 WXT530 Series Mounting Kit (212792) Dimensions170
- Figure 40 Mounting Accessory (WMSFIX60) for Connecting Mounting Kit (212792) and 60 MM Tube171
Appendix A: Networking172
- Connecting Several Transmitters on same Bus172
- Serial Interface172
  - Wiring SDI-12172
  - Communication Protocol172
- Serial Interface173
Appendix B: SDI-12 Protocol178
- Electrical Interface178
Appendix C: CRC-16 Computation180
- Encoding the CRC as ASCII Characters180
- NMEA 0183 V3.0 Checksum Computation181
Appendix D: Wind Measurement Averaging Method182
- Figure 42 Wind Measurement Averaging Method183
Appendix E: Factory Configurations184
- General Unit Settings184
- Wind Configuration Settings184
- Table 49 General Unit Settings184
- PTU Configuration Settings185
- Table 50 Wind Configuration Settings185
- Table 51 PTU Configuration Settings185
- Rain Configuration Settings186
- Supervisor Settings186
- Table 52 Rain Configuration Settings186
- Table 53 General Unit Settings186
Appendix F: Connecting External Sensors to WXT536188
- Connecting Ultrasonic Level Sensor to WXT536188
- Figure 43 Connecting External Sensors to WXT536188
- Figure 44 Connecting Ultrasonic Level Sensor to WXT536189
- Figure 45 Wiring Ultrasonic Level Sensor to WXT536190
- Connecting Pyranometer to WXT536191
- Table 54 Ultrasonic Level Connections191
- Figure 46 Connecting CMP3 to WXT536192
- Figure 47 Peeling CMP3 Cable Sheath193
- Figure 48 Wiring CMP3 to WXT53194
- Connecting Resistance Temperature Sensor195
- Figure 49 Pt1000 Connected to WXT536 M12 Connector195
- Table 55 Pyranometer Connections195
- Figure 50 Wiring Temperature Sensor Pt1000 to WXT536196
- Figure 51 Wiring Temperature Sensor TM-Pt1000 to WXT536196
- Figure 52 TM-Pt1000 Connector197
- Table 56 Temperature Sensor Connections197
- Connecting Rain Gauge to WXT536198
- Figure 53 Wiring RG13/RG13H to WXT536198
- Table 57 Rain Gauge Connections199
Appendix G: Complete Set of Accessories200
- Figure 54 Complete Set of Accessories200
- Figure 55 WXT536 with Surge Protector WSP150202
- Figure 56 WXT536 with Surge Protector WSP152203
Appendix H: Configuration Parameters204
- Table 58 General Parameters204
- Table 59 Pressure, Temperature and Humidity Parameters206
- Table 60 Wind Parameters207
- Table 61 Precipitation Parameters208
- Table 62 Auxiliary Sensor Parameters209
- Table 63 Analog Ma Output Parameters210
- Index212
- Warranty218
- Recycling218
- Technical Support218

Vaisala WXT530 Series - Wind Measurement Principle

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