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User’s Guide ______________________________________________________________________

36 __________________________________________________________________ M211840EN-C

Analog Input Interface

WXT536 offers an analog input option for solar radiation, external
temperature, level measurement, and tipping bucket.

Analog Output Interface

WXT532 offers an analog output option for wind speed and wind
direction measurement.

The output settings are preconfigured at the factory according to your
order. WXT532 takes measurements according to the configured
averaging time and synthesizes the analog outputs of wind speed and
wind direction with an update interval of 0.25 seconds.

WXT536

WXT535

WXT534

WXT533

WXT532

WXT531

X

Table 3

Analog Inputs for External Sensors

1

=

Analog input 1 Sensor A

Solar radiation

2

=

Analog input 2 Sensor B

Temperature

Sensor C

Level sensor

Sensor D

Tipping bucket

WXT536

WXT535

WXT534

WXT533

WXT532

WXT531

X

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Содержание WXT536

Страница 1: ...USER S GUIDE Vaisala Weather Transmitter WXT530 Series M211840EN C...

Страница 2: ...hange without prior notice Local rules and regulations may vary and they shall take precedence over the information contained in this manual Vaisala makes no representations on this manual s complianc...

Страница 3: ...iance 13 Warranty 14 CHAPTER 2 PRODUCT OVERVIEW 15 WXT530 Series Weather Transmitters 15 WXT536 18 WXT535 and WXT534 19 WXT533 and WXT532 20 WXT531 20 Components 21 Optional features 24 USB Cables 24...

Страница 4: ...tor 58 External Wiring 58 Internal Wiring 61 Wiring Using Screw Terminals 65 Data Communication Interfaces 67 Power Management 69 CHAPTER 6 CONNECTION OPTIONS 73 Communication Protocols 73 Connection...

Страница 5: ...rement with CRC aCC 107 Send Data Command aD 107 Examples of aM aC and aD Commands 108 Continuous Measurement aR 110 Continuous Measurement with CRC aRC 112 NMEA 0183 V3 0 Protocol 113 Device Address...

Страница 6: ...G 156 Parameter Selection aIU R bit 3 and bit 11 156 Aux temperature Sensor Settings aIP 156 Averaging Time A 156 Parameter Selection aIU R bit 1 and bit 9 157 Parameter Order for SDI 12 Mode 157 Ana...

Страница 7: ...190 NMEA 0183 v3 0 Query with ASCII Query Commands 192 APPENDIX B SDI 12 PROTOCOL 195 SDI 12 Electrical Interface 195 SDI 12 Communications Protocol 196 SDI 12 Timing 196 APPENDIX C CRC 16 COMPUTATIO...

Страница 8: ..._________________________________________________________ 6 _______________________________________________________________________________ APPENDIX G COMPLETE SET OF ACCESSORIES 217 APPENDIX H CONFIG...

Страница 9: ...ing Transmitter with Mounting Kit 45 Figure 22 Removing Protective Cushion after Installation 46 Figure 23 Mounting Transmitter to Cross Arm L Profile 47 Figure 24 Mounting Bolt Location in Cross Arm...

Страница 10: ...Measurement Averaging Method 202 Figure 48 Connecting External Sensors to WXT536 207 Figure 49 Connecting Snow Depth Sensor to WXT536 208 Figure 50 Wiring Snow Depth Sensor to WXT536 209 Figure 51 Con...

Страница 11: ...otocols 73 Table 16 Connection Cable Options 74 Table 17 Default Serial Communication Settings for M12 Screw Terminal Connection 77 Table 18 Abbreviations and Units 88 Table 19 Transducer IDs of Measu...

Страница 12: ...n Settings 205 Table 45 Rain Configuration Settings 205 Table 46 General Unit Settings 205 Table 47 IRU 9429 Connections 210 Table 48 CMP3 Connections 214 Table 49 RG13 RG13H Connections 216 Table 50...

Страница 13: ...erating and maintaining Vaisala Weather Transmitter WXT530 Series transmitters General Safety Considerations Throughout the manual important safety considerations are highlighted as follows WARNING Wa...

Страница 14: ...removing or inserting any objects inside the equipment housing To make sure you are not delivering high static voltages yourself Handle ESD sensitive components on a properly grounded and protected E...

Страница 15: ...er is allowed to use the software only to the extent that is provided by the applicable supply contract or Software License Agreement Regulatory Compliance The electromagnetic compatibility of the WXT...

Страница 16: ...n Union Directive on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment 2002 95 EC Warranty Visit our Internet pages for standard warranty terms and cond...

Страница 17: ...____________________________________________________ 15 CHAPTER 2 PRODUCT OVERVIEW This chapter introduces the features of the WXT530 series weather transmitters WXT530 Series Weather Transmitters The...

Страница 18: ...Agro meteorological applications Building control systems Cruisers Energy applications Environmental monitoring Fire weather Meteorological test beds Noise monitoring Researchers Sport events Weather...

Страница 19: ...with an 8 pin M12 connector for installation and a 4 pin M8 connector for service use The transmitter housing is IP65 66 rated The following table shows different options available for the product fam...

Страница 20: ...________________________ 18 __________________________________________________________________ M211840EN C WXT536 WXT536 measures pressure temperature humidity rain wind speed and wind direction It of...

Страница 21: ..._________ Product Overview VAISALA_______________________________________________________________________ 19 WXT535 and WXT534 WXT535 measures pressure temperature humidity and rain WXT534 measures pr...

Страница 22: ..._________ 20 __________________________________________________________________ M211840EN C WXT533 and WXT532 WXT533 measures rain and wind WXT532 measures wind and it offers an mA output option Figur...

Страница 23: ...duct Overview VAISALA_______________________________________________________________________ 21 Components 1508 118 Figure 6 WXT536 Components 1 Fixing screw and chassis grounding point 2 Screw cover...

Страница 24: ...22 __________________________________________________________________ M211840EN C 1508 124 Figure 7 Cut Away View of WXT536 1 Wind transducers 3 pcs 2 Precipitation sensor 3 Pressure sensor inside the...

Страница 25: ...____ 23 1508 122 Figure 8 Bottom of WXT536 1 Opening for cable gland if unused cover with a hexagonal plug Watertight cable gland optional included in the Bushing and Grounding Kit 2 4 pin M8 connecto...

Страница 26: ...atures For a complete list see Table 40 on page 179 Note that you must select these options when placing the order USB Cables 1509 029 Figure 9 USB Cable The service cable while connected between the...

Страница 27: ...25 Mounting Kit Figure 10 Mounting Kit The optional mounting kit helps mounting the transmitter on a pole mast When using the optional mounting kit alignment is needed only when mounting for the firs...

Страница 28: ...otectors are also recommended if your cable length exceeds 10 m or you have unshielded open wire lines Vaisala provides the following surge protectors Vaisala Surge Protector WSP150 A compact transien...

Страница 29: ...12 Bird Spike Kit The optional Bird Spike Kit reduces the interference that birds cause to the wind and rain measurement The kit consists of a metallic band with spikes pointing upward The kit is inst...

Страница 30: ...against birds but it does render the transmitter unsuitable for roosting and nest building Note that when the kit is in place more snow can accumulate on the transmitter and the snow can melt away mo...

Страница 31: ...ced ultrasonic transducers on a horizontal plane The unit determines wind speed and wind directions by measuring the time it takes the ultrasound to travel from one transducer to the other two The win...

Страница 32: ...nd speed is represented as a scalar speed in selected units m s kt mph km h The wind direction from which the wind comes is expressed in degrees North is represented as 0 east as 90 south as 180 and w...

Страница 33: ...al Organization WMO In this case the highest and lowest 3 second average values updated once a second replace the maximum and minimum values in reporting of wind speed while the wind direction varianc...

Страница 34: ...ameters are accumulated rainfall rain current and peak intensity duration of a rain event Detecting each drop enables the computing of rain amount and intensity with high resolution Precipitation curr...

Страница 35: ...re sent continuously as the precipitation proceeds and stop when the precipitation ends Tipping bucket mode This mode emulates tipping bucket type precipitation sensors Transmitter sends automatically...

Страница 36: ...module includes Capacitive silicon BAROCAP sensor for pressure measurement Capacitive ceramic THERMOCAP sensor for air temperature measurement Capacitive thin film polymer HUMICAP180 sensor for humidi...

Страница 37: ...rrent depends on the heater voltage You must select the power supply with the instant current in mind The average 5s heating power and heater performance do not depend on the heating voltage When the...

Страница 38: ...tion for wind speed and wind direction measurement The output settings are preconfigured at the factory according to your order WXT532 takes measurements according to the configured averaging time and...

Страница 39: ...hich means that it is exposed to weather When making maritime installations pay attention to the following The product is magnetically inert The compass safe distance is less than 20 cm Do not install...

Страница 40: ...neral area of interest to ensure representative ambient measurements Make sure that the site that is free from turbulence caused by nearby objects such as trees and buildings In general any object of...

Страница 41: ...the transmitter install a lightning rod with the tip at least one meter above the transmitter The rod must be properly grounded compliant with all applicable local safety regulations CAUTION Installat...

Страница 42: ...____ M211840EN C Unpacking The transmitter comes in a custom shipping container The figure below shows the contents of the carton Figure 16 Contents of Shipping Container 1 Protective packaging top 2...

Страница 43: ...led the transmitter The polypropylene cushion protects the transducers during installation Figure 17 Installing with Protective Packaging CAUTION Be careful not to damage the wind transducers located...

Страница 44: ...transmitter can be mounted onto vertical pole mast horizontal cross arm WARNING To protect personnel and the device install a lightning rod with the tip at least one meter above the transmitter The r...

Страница 45: ...____________________ 43 Mounting on Vertical Pole Mast To mount a transmitter on a vertical pole mast 1 Remove the screw cover and insert the transmitter to the pole mast Figure 18 Removing Screw Cove...

Страница 46: ...____ M211840EN C Mounting on Vertical Pole Mast with Mounting Kit When mounting a transmitter on a pole mast you can use an optional mounting kit to ease mounting 1509 083 Figure 20 Mounting WXT531 on...

Страница 47: ...ith Mounting Kit 2 Turn the kit firmly until you feel the adapter snap into the locked position 3 Mount the adapter to the pole mast but do not tighten the fixing screw 4 Align the transmitter so that...

Страница 48: ...________________________________________ M211840EN C 6 Remove the protective cushion 1509 031 Figure 22 Removing Protective Cushion after Installation NOTE When removing a transmitter from the pole tu...

Страница 49: ...time To mount a transmitter on a horizontal cross arm 1 Remove the screw cover 2 Align the horizontal cross arm in south north direction See Aligning on page 49 If you cannot align the cross arm adju...

Страница 50: ...a mast or a cross arm that provides a good connection to earth ground As grounding is provided through the fixing screw or mounting bolt it is important that it makes a good ground connection Groundi...

Страница 51: ...ounding cable The kit does not include the grounding cable The minimum grounding conductor size is 4 mm2 AWG 11 Use a 16 mm2 conductor to achieve a good ground connection Figure 25 on page 49 shows ho...

Страница 52: ...e in degrees between the true north and magnetic north The source for the magnetic declination should be current as the declination changes over time 0003 011 Figure 26 Sketch of Magnetic Declination...

Страница 53: ...e deviation angle in the transmitter 1 Mount the transmitter to a desired position See Mounting on page 42 2 Define the deviation angle from the north zero alignment Use the sign indication to express...

Страница 54: ...User s Guide ______________________________________________________________________ 52 __________________________________________________________________ M211840EN C...

Страница 55: ...l as managing and estimating power consumption The transmitter can be accessed through four different serial interfaces RS 232 RS 485 RS 422 SDI 12 mA output WXT532 You can wire them either through th...

Страница 56: ..._________________________________________________________ M211840EN C Power Supplies The average current consumption is shown in Figure 28 on page 54 The minimum consumption graph is for SDI 12 standb...

Страница 57: ...st consuming operation in the system the average current consumption decreases almost in proportion to the sampling rate Typically the average consumption is less than 10 mA The higher the voltage the...

Страница 58: ..._ 56 __________________________________________________________________ M211840EN C 1509 033 Figure 29 Heating Instant Current and Power vs Vh WXT536 WXT535 WXT533 and WXT532 Figure 30 Heating Instant...

Страница 59: ...ement VAISALA_______________________________________________________________________ 57 WARNING Make sure that you connect only de energized wires CAUTION To avoid exceeding the maximum ratings in any...

Страница 60: ...e respective M12 cable optional 2 10 m Table 4 Pin outs for WXT530 Series Serial Interfaces and Power Supplies Available for all WXT530 Series models WXT532 additional option Wire Color M12 Pin RS 232...

Страница 61: ...g 9 HTG Vh heating Vh heating Vh heating Vh heating 8 SGND GND for data GND for data GND for data GND for data 7 RXD Data in RxD Data in Rx 6 TX Data Data out TX 5 TX Data out TxD Data out Tx Data Dat...

Страница 62: ...o internal wiring options see Figure 32 on page 64 NOTE Do not use operating power supply ground VIN for communication RS 232 RS 485 SDI 12 RS 422 Use SGND communication ground GND Table 6 WXT532 mA O...

Страница 63: ...d The shield is not connected inside WXT Table 7 RS 232 Wiring Internal Wiring External Wiring Pin Number Internal Connector Pin Internal Connector Pin function for RS 232 Internal Wiring for RS 232 M...

Страница 64: ...op with Gray 5 TX Data Blue 7 Blue 6 TX Data Gray 5 Gray 7 RXD White 1 White 8 SGND Communication ground GND Green 3 Green 9 HTG Vh Heating Yellow 4 Yellow 10 HTG Vh Heating Pink 6 Pink Shield Table 9...

Страница 65: ...e 7 Blue 4 RX Data in RX Gray 5 Gray 5 TX Data out TX White 1 White 6 TX Data out TX Green 3 Green 7 RXD 8 SGND 9 HTG V Heating Yellow 4 Yellow 10 HTG Vh Heating Pink 6 Pink Shield Table 11 mA Output...

Страница 66: ...____________________________________________________________________ 64 __________________________________________________________________ M211840EN C 1508 078 Figure 32 Internal Wiring for RS 232 SDI...

Страница 67: ...wires and signal wires through the cable gland s in the bottom of the transmitter Cable glands are included in the optional Bushing and Grounding Kit 222109 4 Connect the wires according to Table 12...

Страница 68: ...ground GND Communication ground GND GND 9 HTG Vh Heating Vh Heating Vh Heating Vh Heating Vh Heating 10 HTG Vh Heating Vh Heating Vh Heating Vh Heating Vh Heating NOTE Use a shielded cable and ground...

Страница 69: ...a rate is 9600 Bd or higher and the cabling from the transmitter to the host is 600 m 2000 ft or longer you must use termination resistors at both ends of the line The WXT530 series transmitters with...

Страница 70: ...ries with each external termination resistor or use internal RC termination Note that the RS 485 interface can be used with four wires as RS 422 The main difference between the RS 485 and RS 422 inter...

Страница 71: ...th the Native SDI 12 mode typically about 1 mW in standby 0 1 mA at 12 V while with ASCII RS 232 or Continuous SDI 12 modes it is about 3 mW in standby Any activated sensor measurement adds its own ex...

Страница 72: ...rate 1 Hz sampling rate Continuous measurement 10 s average every 2 min Continuous measurement 10 s average every 2 min RS 232 RS 485 RS 422 SDI 12 continuous 1 5 mA 4 5 mA 0 6 mA 1 3 mA 0 2 mA SDI 1...

Страница 73: ...necessary in 2 wire RS 485 increase consumption slightly ASCII RS 232 Polling mode and Automatic mode Equal consumption The Automatic mode is a little more economic since interpreting the poll takes m...

Страница 74: ...t should be on some 0 08 mA additional current is drawn from the operational power supply NOTE While in Service mode and or while supplied through the service port the transmitter consumes 0 3 0 6 mA...

Страница 75: ...cation protocol ASCII NMEA 0183 or SDI 12 when placing your order To check the communication settings see and or change the protocol or other communication settings see the following sections Table 15...

Страница 76: ...See Connection Cables on page 74 NOTE RS 232 and SDI 12 can be accessed with a standard PC terminal if for SDI 12 the Data in out lines have not been combined inside the transmitter Table 16 Connectio...

Страница 77: ...sala USB Device Driver Setup Wizard opens select Next 4 In the Select Additional Tasks window select the tasks you want to perform and select Install 5 Select Display Vaisala USB Device Finder now and...

Страница 78: ...vice port settings are forced automatically to RS 232 19200 8 N 1 and the main serial port at the M12 connector at the screw terminals is disabled 1 Use the USB service cable to establish a connection...

Страница 79: ...to RS 232 if the host is a PC The table below shows the factory default settings NOTE Changes to the serial interface communication protocol baud settings take place when disconnecting the service cab...

Страница 80: ...mple response in ASCII and NMEA 0183 aXU A a M M T T C C I I B B D D P P S S L L N N V V cr lf Example response in SDI 12 aXXU A a M M T T C C I I B B D D P P S S L L N N V V cr lf NOTE In this sectio...

Страница 81: ...with the Vaisala Configuration Tool a Device address XU Device settings command in ASCII and NMEA 0183 XXU Device settings command in SDI 12 A Address 0 default 9 A Z a z M Communication protocol A A...

Страница 82: ...83 query protocols Effective when RS 485 is selected C 3 N Name of the device WXT536 read only V Software version for example 1 00 read only H Parameter locking 0 Parameters can be changed 1 Parameter...

Страница 83: ...e Setting Fields on page 79 x Input value for the setting cr lf Command terminator in ASCII and NMEA 0183 Command terminator in SDI 12 NOTE When changing the serial interface and communication protoco...

Страница 84: ...ommunication protocol and baud settings 19200 8 N 1 to RS 485 serial interface with ASCII automatic protocol and baud settings 9600 8 N 1 Checking the settings 0XU cr lf 0XU A 0 M P C 2 I 0 B 19200 D...

Страница 85: ...r data message commands For details on changing the message parameters units and other settings see Chapter 8 Sensor and Data Message Settings on page 127 NOTE Type commands in CAPITAL letters NOTE Th...

Страница 86: ...ce Command format in ASCII and NMEA 0183 aXZ cr lf Command format in SDI 12 aXZ The response depends on the communication protocol as shown in the examples Example ASCII 0XZ cr lf 0TX Start up cr lf E...

Страница 87: ...command resets the rain and hail accumulation and duration parameters Rc Rd Hc and Hd Command format in ASCII and NMEA 0183 aXZRU cr lf Command format in SDI 12 aXZRU Example ASCII 0XZRU cr lf 0TX Rai...

Страница 88: ...ZRI Example ASCII 0XZRI cr lf 0TX Inty reset cr lf Example SDI 12 0XZRI 0 cr lf device address Example NMEA 0183 0XZRI cr lf WITXT 01 01 11 Inty reset 39 cr lf where a Device address XZRI Precipitatio...

Страница 89: ...g measurements except rain measurement and restarts them Command format in ASCII and NMEA 0183 aXZM cr lf Command format in SDI 12 aXZM Example ASCII 0XZM cr lf 0TX Measurement reset cr lf Example SDI...

Страница 90: ...l temperature C F C F Ua Relative humidity RH P Rc Rain accumulation mm in M I Rd Rain duration s S Ri Rain intensity mm h in h M I Rp Rain peak intensity mm h in h M I Hc Hail accumulation hits cm2 h...

Страница 91: ...Device Address This command queries the address of the device on the bus Command format cr lf The response b cr lf Example cr lf 0 cr lf If more than one transmitter is connected to the bus see Appen...

Страница 92: ...onding to a data recorder or another device by asking a device to acknowledge its presence on the bus Command format a cr lf The response a cr lf Example 0 cr lf 0 cr lf Wind Data Message aR1 This com...

Страница 93: ...sage see Wind Sensor on page 127 Pressure Temperature and Humidity Data Message aR2 This command requests a pressure temperature and humidity data message Command format aR2 cr lf where a Device addre...

Страница 94: ...changing the parameters and units in the response message see Pressure Temperature and Humidity Sensors on page 134 Precipitation Data Message aR3 This command requests the precipitation data message...

Страница 95: ...Sensor on page 138 Supervisor Data Message aR5 This command requests a supervisor data message containing self check parameters of the heating system and power supply voltage Command format aR5 cr lf...

Страница 96: ...upervisor Message on page 144 The content of the parameter Id is a text string which you can modify with the Vaisala Configuration Tool The field can include customer specific additional information F...

Страница 97: ...M cr lf 0R2 Ta 74 6F Ua 14 7P Pa 1012 9H cr lf 0R3 Rc 0 10M Rd 2380s Ri 0 0M Hc 0 0M Hd 0s Hi 0 0M cr lf 0R5 Th 76 1F Vh 11 5N Vs 11 5V Vr 3 510V Id HEL___ cr lf Composite Data Message Query aR0 This...

Страница 98: ...s in the previous sections but type the first letter of the command in lower case and add a correct three character CRC before the command terminator The response also contains a CRC For more informat...

Страница 99: ...the parameters to include in the response messages changing the units and making other configurations of the measured parameters see Chapter 8 Sensor and Data Message Settings on page 127 where a Dev...

Страница 100: ...for each sensor See Chapter 8 Sensor and Data Message Settings on page 127 Example 0R1 Dm 027D Sm 0 1M cr lf 0R2 Ta 74 6F Ua 14 7P Pa 1012 9H cr lf 0R3 Rc 0 10M Rd 2380s Ri 0 0M Hc 0 0M Hd 0s Hi 0 0M...

Страница 101: ...e composite data query command aR0 and contains a user configurable set of wind pressure temperature humidity precipitation and supervisor data Example of the response you can select the parameters in...

Страница 102: ...ther settings see Chapter 8 Sensor and Data Message Settings on page 127 In the Native SDI 12 mode aXU M S the transmitter is in idle state most of the time power consumption 1 mW More power is consum...

Страница 103: ...e address 0 0 cr lf Acknowledge Active Command a This command checks that a device responds to a data recorder or another SDI 12 device It asks device to acknowledge its presence on the SDI 12 bus Com...

Страница 104: ...for one second time in order to ensure writing the new address to the non volatile memory Command format aAb The response b cr lf Example changing address from 0 to 3 0A3 3 cr lf Send Identification C...

Страница 105: ...ds to other devices on the bus until the measurement is completed When several devices are connected to the same bus and simultaneous measurements from the many devices are needed use start concurrent...

Страница 106: ...t command x The desired sensor to make the measurement 1 Wind 2 Temperature humidity pressure 3 Precipitation 5 Supervisor If x is left out the query refers to the combined data message used for reque...

Страница 107: ...s measurements are needed from the devices or if more than nine 9 measurement parameters are requested from a single device The measured data is not sent automatically You must request it with the Sen...

Страница 108: ...nd pressure 3 Precipitation 5 Supervisor If x is left out the query refers to combined data message in which the user can request data from several sensors with just one command See the examples below...

Страница 109: ...from the device See Examples of aM aC and aD Commands on page 108 Command format aDx NOTE Start measurement command indicates the number of parameters available The number of the parameters that can...

Страница 110: ...aM aMC aC or aCC NOTE In SDI 12 v1 3 Continuous measurement mode aXU M R the sensor makes measurements at configurable update intervals The aD command following the aM aMC aC or aCC command always ret...

Страница 111: ...Start a concurrent pressure humidity and temperature measurement and request the data 0C2 000503 cr lf measurement ready in 5 seconds and 3 parameters available for aC command device address not sent...

Страница 112: ...ata The configuration of the parameter set is such that 20 parameters are available Thus Start concurrent measurement command aC is used Due to the 75 character limit in response message aD0 returns o...

Страница 113: ...only the precipitation data can be retrieved continuously using aR3 command where a Device address R Start continuous measurement command x The desired sensor to make the measurement 1 Wind 2 Temperat...

Страница 114: ...3 0 cr lf 0R3 0 0 15 20 0 0 0 0 0 0 0 0 0 0 0 cr lf 0R 0 178 288 001 15 5 27 4 38 5 23 9 35 0 1002 1 0 00 0 0 0 23 8 cr lf Continuous Measurement with CRC aRC Command format aRCx The device can be con...

Страница 115: ...ings on page 127 A two character checksum CRC field is transmitted in all data request sentences For definition of the CRC see Appendix C CRC 16 Computation on page 199 Device Address This command que...

Страница 116: ...sponse a cr lf Example 0 cr lf 0 cr lf MWV Wind Speed and Direction Query Use a MWV query command to request the wind speed and direction data To use MWV query the NMEA Wind formatter parameter in the...

Страница 117: ...ester WI Device type identifier WI weather instrument Q Defines the message as Query MWV Wind speed and direction query command Checksum delimiter hh Two character checksum for the query command cr lf...

Страница 118: ...WIMWV 282 R 0 1 M A 37 cr lf Wind angle 282 degrees Wind speed 0 1 m s XDR Transducer Measurement Query The XDR query command outputs the data of all sensors except wind To request wind data with the...

Страница 119: ...e identifier a1 Transducer type for the first transducer see the following transducer table x x1 Measurement data from the first transducer u1 Units of the first transducer measurement see the followi...

Страница 120: ...wind speed so if all three are configured to be shown in the XDR message they get transducer ids A A 1 and A 2 respectively where A is the transmitter address aXU A The same applies for the wind direc...

Страница 121: ...57 cr lf Table 19 Transducer IDs of Measurement Parameters Measurement Transducer ID Type Wind direction min 0 A Wind direction average 1 A Wind direction max 2 A Wind speed min 0 S Wind speed average...

Страница 122: ...ransducer measurement response identifier A Transducer id 0 type wind direction see the following Transducer table 302 Transducer id 0 data min wind direction D Transducer id 0 units degrees min wind...

Страница 123: ...peed Checksum delimiter 57 Two character checksum for the response cr lf Response terminator where Start of the message WI Device type WI weather instrument XDR Transducer measurement response identif...

Страница 124: ...le 0 02 Transducer id 0 data Accumulated rainfall I Transducer id 0 units mm Accumulated rainfall 0 Transducer id for Accumulated rainfall Z Transducer id 0 type Rain duration 30 Transducer id 0 data...

Страница 125: ...intensity 0 0 Transducer id 1 data Hail peak intensity M Transducer id 1 units hits cm2 Hail peak intensity 3 Transducer id for Hail peak intensity Checksum delimiter 51 Two character checksum for th...

Страница 126: ...CRC for the response cr lf Response terminator 1 See Chapter 8 Supervisor Message Setting Fields for definitions of the Heating voltage field Table 20 Transducer Table Transducer Type Units Field Comm...

Страница 127: ...bled from the wind message WITXT 01 01 03 Unknown cmd error 1F unknown command 0XO cr lf WITXT 01 01 08 Use chksum 2F 72 wrong checksum used in MWV query command Table 27 on page 168 shows the short t...

Страница 128: ...ensor and Data Message Settings on page 127 Automatic Composite Data Message aR0 When automatic composite data messaging is selected the transmitter sends composite data messages at user configurable...

Страница 129: ...and data message formatting commands for all communications protocols ASCII NMEA 0183 and SDI 12 Sensor and data message settings can also be done using the Vaisala Configuration Tool software See Ta...

Страница 130: ...N N F F cr lf where R I A G U D N are the setting fields see the following sections Example ASCII and NMEA 0183 device address 0 0WU cr lf 0WU R 01001000 00100100 I 60 A 10 G 1 U N D 90 N W F 4 cr lf...

Страница 131: ...it Dx Direction maximum 4th bit Sn Speed minimum 5th bit Sm Speed average 6th bit Sx Speed maximum 7th bit output mode 8th bit spare delimiter Bits 9 16 determine the wind parameters in the composite...

Страница 132: ...l calculations see Wind Measurement Principle on page 29 U Speed unit M m s K km h S mph N knots D Direction offset 180 180 see Wind Direction Offset on page 51 N NMEA wind formatter T XDR transducer...

Страница 133: ...s with the following command For details on the value or letters for the setting fields see the examples and Setting Fields on page 129 Command format in ASCII and NMEA 0183 aWU R x I x A x G x U x D...

Страница 134: ...d speed is in knots and wind direction offset 10 Changing the measurement interval to 60 seconds 0WU I 60 cr lf 0WU I 60 cr lf Changing the averaging time to 20 seconds the wind speed unit to knots an...

Страница 135: ..._________________________________________________ 133 The wind message response after the change above 0R1 cr lf 0R1 Dm 268D Sm 1 8N cr lf Example SDI 12 device address 0 Changing the measurement inte...

Страница 136: ...A 0183 aTU R R I I P P H H cr lf The response in SDI 12 aXTU R R I I P P H H cr lf where R I P H are the setting fields see the following section Example ASCII and NMEA 0183 device address 0 0TU cr lf...

Страница 137: ...pressure 2nd bit Ta Air temperature 3rd bit Tp Internal temperature1 1 Tp temperature value is used in pressure calculation it does not express the air temperature 4th bit Ua Air humidity 5th bit spar...

Страница 138: ...r the setting fields see the examples and Setting Fields on page 135 Command format in ASCII and NMEA 0183 aTU R x I x P x T x cr lf Command format in SDI 12 aXTU R x I x P x T x Examples ASCII and NM...

Страница 139: ...________ 137 Changing the update interval 0TU I 30 cr lf 0TU I 30 cr lf The response after the change 0R2 cr lf 0R2 Ta 23 9C Ua 26 7P cr lf Example SDI 12 device address 0 Changing the temperature uni...

Страница 140: ...I and NMEA 0183 aRU R R I I U U S S M M Z Z X X Y Y cr lf The response in SDI 12 aXRU R R I I U U S S M M Z Z X X Y Y cr lf where R I U S M Z X Y are the setting fields see the following section Examp...

Страница 141: ...ontinuous aR3 and ar3 1st bit most left Rc Rain amount 2nd bit Rd Rain duration 3rd bit Ri Rain intensity 4th bit Hc Hail amount 5th bit Hd Hail duration 6th bit Hi Hail intensity 7th bit Rp Rain peak...

Страница 142: ...on C tipping bucket The transmitter sends a precipitation message at each unit increment 0 1 mm 0 01 in This simulates conventional tipping bucket method T time based Transmitter sends a precipitation...

Страница 143: ...t to zero If the hail unit aRU S x is metric the limit corresponds the range between 10 0 6553 5 hits cm2 If the unit is imperial the equivalent range varies between 100 65535 hits in2 If the unit is...

Страница 144: ...hail accumulation limit Make the desired setting with the following command Select the correct value letter for the setting fields see Setting Fields on page 139 See the examples Command format in AS...

Страница 145: ...cr lf Making the Rain amount Rc and Rain intensity Ri available both in the precipitation message and composite data message 0RU R 1010000010100000 cr lf 0RU R 10100000 10100000 cr lf The response af...

Страница 146: ...to check the current supervisor settings Command format in ASCII and NMEA 0183 aSU cr lf Command format in SDI 12 aXSU The response in ASCII and NMEA 0183 aSU R R I I S S H Y cr lf The response in SD...

Страница 147: ...ce voltage 5th bit Id Information field 6th bit spare 7th bit spare 8th bit spare delimiter Bits 9 16 determine the supervisor parameters included in the composite data message obtained with the follo...

Страница 148: ...hange the following settings parameters included in the supervisor data message update interval error messaging on off and heating control Make the desired setting with the following command Select th...

Страница 149: ...er selection fields of each parameter aWU R aTU R aRU R and aSU R See parameter tables of each sensor in the previous sections See the following examples Example ASCII and NMEA 0183 device address 0 T...

Страница 150: ...U R 01001000 cr lf 0WU R 11110000 01001000 cr lf Remove the heating voltage Vh and temperature Th data from the composite data message and include the information field Id 0SU R 00001000 cr lf 0SU R 1...

Страница 151: ...iptions Table 21 Analog Input Signals Signal name M12 Pin Description Use example PTI 1 PT1000 measuring current PT1000 temperature sensor Current feed PT 2 PT1000 input PT1000 temperature sensor Sens...

Страница 152: ..._______________________________ 150 _________________________________________________________________ M211840EN C The figure below shows the analog input settings in the Configuration Tool 1509 070 Fi...

Страница 153: ...solar radiation sensor calibration documents provided with the sensor For example for sensitivity 19 71 V W m2 gain is 1 0 00001971V W m2 50736 Aux level range 0 5 V Selects voltage measurement range...

Страница 154: ...are enabled by default You can enable and disable analog output with the aIU R command For example PT1000 temperature enabled all other disabled aIU R 1000000010000000 You need to reset the transmitt...

Страница 155: ...value 0 25 s means single measurement A longer averaging time can decrease noise A shorter averaging times gives a slightly smaller current consumption Parameter Selection R R defines the active meas...

Страница 156: ...mple in mm If the Aux sensor has 10 pulses per a millimeter of rain and the user sets the gain to 1 10 the transmitter reports the rain value in mm The range 0 000 000 001 1 000 000 For example you ca...

Страница 157: ...s the same as in gain G The range 0 000 000 001 1 000 000 Parameter Selection aIU R bit 2 and bit 10 Bits 7 and 14 enable normal and composite message for aux rain accumulation You can select the para...

Страница 158: ...gain 2 V meter and the user sets the gain G to 0 5 the value reported by WXT is in meters WXT reports the value with six decimals The range 0 000 000 001 1 000 000 Parameter Selection aIU R bit 3 and...

Страница 159: ...SDI 12 mode is Analog in M4 Tr Ra Sl Rt Sr Analog Output You can change the analog output type and scaling of WXT532 For instructions see Analog Output Scaling on page 158 WXT532 provides the followin...

Страница 160: ...d Speed maximum aSU d 22 cr lf WS error indication aSU e 2 cr lf Wind Direction Gain aSU f 0 044444 cr lf Wind Direction Offset aSU g 4 cr lf WD minimum aSU h 0 cr lf WD maximum aSU j 22 cr lf WD erro...

Страница 161: ...ng formula shows the impact of gain and offset values on the produced output o y0 k s Analog Output Signal for Wind Speed Channel The analog interfaces setup default configuration Current output 4 20...

Страница 162: ...0 mA offset 4 mA 4 mA 0 degree 20 mA 360 degree 0 044444 mA Error indication sets output to 2 mA Analog interfaces setup configuration 2 Current output degree 0 20 mA offset 0 mA 0 uA 0 degree 20 mA 3...

Страница 163: ...ry 0XF f 1111111111100000 You can enable or disable analog output with the aWU R command To enable analog output Change bit 7 to 1 0WU R 1111111111111100 To disable analog output Change bit 7 to 0 0WU...

Страница 164: ...User s Guide ______________________________________________________________________ 162 _________________________________________________________________ M211840EN C...

Страница 165: ...uctions for basic maintenance of the WXT530 Series transmitters Cleaning To ensure the accuracy of measurement results clean the transmitter when it gets contaminated Remove leaves and other such part...

Страница 166: ...____ M211840EN C Replacing the PTU Module To replace the PTU module 1 Turn the power off Loosen the three mounting screws at the bottom assembly of the transmitter and pull them out 1509 082 Figure 39...

Страница 167: ...able and it is properly connected 6 If the O rings are damaged replace them with new ones Tighten the mounting screws To make sure that the radiation shield stays straight do not tighten the screws al...

Страница 168: ...User s Guide ______________________________________________________________________ 166 _________________________________________________________________ M211840EN C...

Страница 169: ...ings in the terminal program Remove the blockage and check that the wind transducers are not damaged If the blockage is ice or snow it will melt after some time if heating is enabled Time for clearanc...

Страница 170: ...commands and cr lf with different serial settings in terminal program When the communication parameters match the device responds with its address The settings can now be changed using aXU SDI 12 or a...

Страница 171: ...ttings on page 127 An error message as a response to a command Refer to Error Messaging Text Messages on page 170 Refer to Error Messaging Text Messages on page 170 The transmitter keeps sending the m...

Страница 172: ...s in all communication modes except in the SDI 12 mode You may disable error messaging by using the supervisor message aSU S N See Changing the Settings aSU on page 146 Examples 0R1 0TX Unable to meas...

Страница 173: ...alid Ask the device address with the SDI 12 or cr lf ASCII and NMEA command and retype the command with the correct address 03 Unknown cmd error The command is not supported use the correct command fo...

Страница 174: ...y voltage level Vs In case of deviations between the supplied voltage and monitored voltage check the wiring and the power supply See Supervisor Message on page 144 Missing Readings and Error Indicati...

Страница 175: ...y aspirated radiation shield is applied which can affect readings in calm wind Table 29 Barometric Pressure Property Description Value Range 600 1100 hPa Accuracy for sensor element 0 5 hPa at 0 30 C...

Страница 176: ...at one second steps Table 32 Precipitation Property Description Rainfall Cumulative accumulation after the latest auto or manual reset Collecting area 60 cm2 Output resolution 0 01 mm 0 001 in Field a...

Страница 177: ...Response time 0 25 s Available variables Average maximum and minimum Accuracy 3 at 10 m s Output resolution 0 1 m s km h mph knots Units available m s km h mph knots Wind direction Azimuth 0 360 Resp...

Страница 178: ...15 mA 5 VDC with constant measurement of all parameters Heating voltage DC AC full wave rectified AC 12 24 VDC 10 30 12 17 VACrms 10 30 Typical heating current 12 VDC 0 8 A 24 VDC 0 4 A 12 VACrms 1 1...

Страница 179: ...the output data Extreme operating conditions can alter sensor performance temporarily Table 36 Analog mA Output Options Parameter Description Value Wind speed 0 20 mA or 4 20 mA Wind direction 0 20 mA...

Страница 180: ...22 Conducted emissions DC 150 kHz 30 MHz Class B IEC 61000 4 2 Electrostatic discharge 8 kV con 15 kV air B IEC 61000 4 3 RF field immunity 10 V m and 3 V m A IEC 61000 4 4 Electric fast transient 3 k...

Страница 181: ...e 39 Materials Property Description Value Radiation shield top and bottom parts Polycarbonate 20 glass fiber Precipitation sensor plate Stainless steel AISI 316 Weight 650 g 1 43 lbs Table 40 General...

Страница 182: ...hielded 12 pin open end wires SP 217020 Bushing and grounding accessory kit 222109 Mounting kit 212792 Mounting accessory between Mounting kit and 60 mm tube WMSFIX60 Bird Kit 212793 Vaisala surge pro...

Страница 183: ...___________________________________________ 181 Type Label All WXT530 Series transmitters can be identified from the type label Figure 40 Type Label 1 Product code 2 Serial number in bar code 3 Place...

Страница 184: ...e ______________________________________________________________________ 182 _________________________________________________________________ M211840EN C Dimensions mm inch 1509 019 Figure 41 WXT536...

Страница 185: ...1 ____________________________________________________ Technical Specifications VAISALA______________________________________________________________________ 183 1509 021 Figure 42 WXT535 and WXT534 D...

Страница 186: ...Guide ______________________________________________________________________ 184 _________________________________________________________________ M211840EN C 1509 023 Figure 43 WXT533 and WXT532 Dime...

Страница 187: ...ter 11 ____________________________________________________ Technical Specifications VAISALA______________________________________________________________________ 185 Figure 44 WXT531 Dimensions 1509...

Страница 188: ..._____________________ 186 _________________________________________________________________ M211840EN C 1509 085 Figure 45 Mounting Kit Dimensions 1 Mounting kit with adapter sleeve for 26 7 mm mast t...

Страница 189: ...and 2 Using RS 485 serial interface and one of the following communication protocols ASCII or NMEA 0183 v3 0 SDI 12 Serial Interface Wiring 1 Make the SDI 12 wiring in transmitter as described in Cha...

Страница 190: ...tion settings 0XXU A 0 M S C 1 B 1200 D 7 P E S 1 L 25 WXT530 2 communication settings 1XXU A 1 M S C 1 B 1200 D 7 P E S 1 L 25 WXT530 3 communication settings 2XXU A 2 M S C 1 B 1200 D 7 P E S 1 L 25...

Страница 191: ...or without CRC or NMEA query When using NMEA query the wind message should be set to XDR aWU N T ASCII Polled Assign different addresses to the transmitters on the bus for example aXU A 0 1 2 Example...

Страница 192: ...character of the query and the first character of the response from the transmitter Example a bus with three transmitters WXT530 1 communication settings 0XU A 0 M Q C 3 I 0 B 4800 D 8 P N S 1 L 25 W...

Страница 193: ...m transducer ID is three when the transmitter address is 0 Hence assigning address 4 for the second and address 8 for the third transmitter on the bus the following responses to the XDR query WIQ XDR...

Страница 194: ...ample aXU A 0 1 2 The RS 485 line delays are not needed Example a bus with three transmitters data requests with combined data message query commands the same message parameter configuration as in the...

Страница 195: ...2 S 0 2 M 3 55 cr lf WIXDR C 23 5 C 1 C 24 3 C 2 H 49 3 P 1 P 1010 1 H 1 59 cr lf WIXDR V 0 000 I 1 Z 0 s 1 R 0 00 I 1 V 0 0 M 2 Z 0 s 2 R 0 0 M 2 67 cr lf WIXDR C 25 8 C 3 U 10 6 N 1 U 10 9 V 1 U 3...

Страница 196: ...User s Guide ______________________________________________________________________ 194 _________________________________________________________________ M211840EN C...

Страница 197: ...of the complete SDI 12 standard text is available from the SDI 12 website www sdi 12 org SDI 12 Electrical Interface The SDI 12 electrical interface uses the SDI 12 bus to transmit serial data between...

Страница 198: ...on from the first sensor is complete A typical recorder sensor measurement sequence proceeds in the following order 1 The data recorder wakes all sensors on the SDI 12 bus with a break 2 The recorder...

Страница 199: ...g a start bit from a valid command within 100 ms after detecting a break After a data recorder transmits the last character of a command it must relinquish control of the data line within 7 5 ms 0505...

Страница 200: ...rn to a low power standby mode after receiving an invalid address or after detecting a marking state on the data line for 100 ms tolerance 0 40 ms When a recorder addresses a different sensor or if th...

Страница 201: ...nsigned integers The least significant bit is on the right Numbers preceded by 0x are in hexadecimal All shifts shift in a zero The algorithm is Initialize the CRC to zero For each character beginning...

Страница 202: ...cr lf Parity is applied to all three characters if selected for the character frame The CRC computation code is added to the end of the response if the first letter of the command is sent by using low...

Страница 203: ...rement is in progress during the corresponding second Update internal calculation is always made in the end of the update interval In the auto sending protocols ASCII automatic CRC and NMEA automatic...

Страница 204: ...time 1 sec I A all communication protocols other than SDI 12 aXU M S In this example I 5 sec and A 3 sec I A all communication protocols other than SDI 12 aXU M S In this example I 2 sec and A 5 sec...

Страница 205: ...________________________________ 203 APPENDIX E FACTORY CONFIGURATIONS The factory configurations are read only settings which cannot be modified For each settings command the following information is...

Страница 206: ...eters o Order code Ordering identity as delivered 10 characters c Calibration date Y 2003 A B 2005 2006 1 52 week 1 7 weekday i Info Factory signature 10 characters n Device s n A B 2005 2006 1 52 wee...

Страница 207: ...haracter Field Name Description n PTU serial number A B 2005 2006 1 52 week 1 7 weekday 1 9999 serial number Table 45 Rain Configuration Settings Field Character Field Name Description p n Positive an...

Страница 208: ...User s Guide ______________________________________________________________________ 206 _________________________________________________________________ M211840EN C...

Страница 209: ...to WXT536 VAISALA______________________________________________________________________ 207 APPENDIX F WIRING EXTERNAL SENSORS TO WXT536 This appendix provides you with information on connecting exter...

Страница 210: ..._____________________________________ M211840EN C Connecting Snow Depth Sensor to WXT536 The following figure shows how to connect a snow depth sensor to the transmitter Figure 49 Connecting Snow Dept...

Страница 211: ...________ Wiring External Sensors to WXT536 VAISALA______________________________________________________________________ 209 The figure below shows how to wire the snow depth sensor to WXT536 1509 086...

Страница 212: ..._________ M211840EN C Table 47 IRU 9429 Connections Level sensor connector IRU 9420S Additional sensor connector pin number Pin function for additional sensor connector Wire color Function 1 2 3 4 AGN...

Страница 213: ...Wiring External Sensors to WXT536 VAISALA______________________________________________________________________ 211 Connecting Pyranometer to WXT536 The following figure shows how to connect pyranomet...

Страница 214: ..._______________________ 212 _________________________________________________________________ M211840EN C The following figure shows how to peel CMP3 cable sheath 1510 038 Figure 52 Peeling CMP3 Cable...

Страница 215: ...________________________________________________________ 213 The figure below shows how to wire the pyranometer to WXT536 1510 037 Figure 53 Wiring CMP3 to WXT53 To wire CMP3 to the solar radiation co...

Страница 216: ..._________________________________________ M211840EN C Table 48 CMP3 Connections Solar radiation connector CMP3 Additional sensor connector pin number Pin function for additional sensor connector Wire...

Страница 217: ...WXT536 The following figure shows how to wire rain gauge RG13 to WXT536 1510 005 Figure 54 Wiring RG13 to WXT536 To wire RG13 to WXT536 Connect the green wire additional sensor connector pin number 4...

Страница 218: ...Table 49 RG13 RG13H Connections Tipping bucket rain sensor connector RG13 RG13H connector X4 Additional sensor connector pin number Pin function for additional sensor connector Pin number Function 1 2...

Страница 219: ...__________________ Complete Set of Accessories VAISALA______________________________________________________________________ 217 APPENDIX G COMPLETE SET OF ACCESSORIES The following figures show the c...

Страница 220: ...er s Guide ______________________________________________________________________ 218 _________________________________________________________________ M211840EN C Figure 55 Complete Set of Accessorie...

Страница 221: ...Mounting kit 212792 4 Mounting accessory between Mounting kit and 60 mm tube WMSFIX60 5 Cable USB RS 232 RS 485 1 4 m USB M12 SP 220782 6 USB service cable delivered with the Vaisala Configuration To...

Страница 222: ...____________________________________ 220 _________________________________________________________________ M211840EN C The following figure shows how to connect surge protector WSP150 to WXT536 1510 0...

Страница 223: ...________________ Complete Set of Accessories VAISALA______________________________________________________________________ 221 1 Cable with open leads 222287 or 222288 2 WSP150 surge protector 3 Data...

Страница 224: ...s Guide ______________________________________________________________________ 222 _________________________________________________________________ M211840EN C Figure 57 WXT536 with Surge Protector W...

Страница 225: ..._______________ Complete Set of Accessories VAISALA______________________________________________________________________ 223 1 Cable with connectors on both ends 225952 2 WSP152 surge protector 3 USB...

Страница 226: ...User s Guide ______________________________________________________________________ 224 _________________________________________________________________ M211840EN C...

Страница 227: ...miter 1 Th Heating temperature 1 Vh Heating voltage 0 Vs Supply voltage 0 Vr 3 5 V reference voltage 0 Id Information field 0 Reserved 0 Reserved 0 Reserved Format 1111000011000000 First 8 are for com...

Страница 228: ...is wired differently inside the unit XU C Repeat interval in seconds 0 0 3600 seconds XU I Baud rate Order option defined 1200 2400 4800 9600 19200 38400 57600 115200 Bauds XU B Data bits Order option...

Страница 229: ...1 Ua Air humidity 0 Reserved 0 Reserved 0 Reserved 0 Reserved Delimiter 1 Pa Air pressure 1 Ta Air temperature 0 Tp internal temperature 1 Ua Air humidity 0 Reserved 0 Reserved 0 Reserved 0 Reserved F...

Страница 230: ...ection average 0 Dx Direction maximum 0 Sn Speed minimum 1 Sm Speed average 0 Sx Speed maximum 0 Reserved 0 Reserved Format 1111110001001000 The first 8 are for combined message and the last 8 for com...

Страница 231: ...00 but the unit answers 11111100 10000000 RU R Precipitation update interval 60 1 3600 seconds RU I Precipitation unit M M metric mm s mm h I imperial in s in h RU U Table 54 Auxiliary Sensor Paramete...

Страница 232: ...2 it resets at 65536 0 2 13107 mm L resets when reaching limit value A Cumulative rain value is reset every time rain information is sent out from transmitter user counts cumulative rain amount IA M R...

Страница 233: ...he parameter format 0000001000000000 but the unit answers 00000010 00000000 Note that the analog output mode is used only in WXT532 with the mA output option IU R Wind speed gain Order option defined...

Страница 234: ...User s Guide ______________________________________________________________________ 232 _________________________________________________________________ M211840EN C...

Страница 235: ...www vaisala com M211840EN...

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