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WXT510
User Manual
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Campbell Scientific WXT510 User Manual

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WXT510 Weather Transmitte
Revision: 4/07
Copyright © 2006-2007
Campbell Scientific, Inc.

Warranty and Assistance

Products may not be returned without prior authorization. The following contact information is for US and International customers residing in countries served by Campbell Scientific, Inc. directly. Affiliate companies handle repairs for customers within their territories. Please visit www.campbellsci.com to determine which Campbell Scientific company serves your country. To obtain a Returned Materials Authorization (RMA), contact CAMPBELL SCIENTIFIC, INC., phone (435) 753-2342. After an applications engineer determines the nature of the problem, an RMA number will be issued. Please write this number clearly on the outside of the shipping container. CAMPBELL SCIENTIFIC's shipping address is:
CAMPBELL SCIENTIFIC, INC.
RMA#_____ 815 West 1800 North Logan, Utah 84321-1784
CAMPBELL SCIENTIFIC, INC. does not accept collect calls.
WXT510 Table of Contents
PDF viewers note: These page numbers refer to the printed version of this document. Use the Adobe Acrobat® bookmarks tab for links to specific sections.
1. General Description.....................................................1
1.1 Wind Speed and Direction........................................................................1
1.2 Precipitation..............................................................................................1
1.3 Barometric Pressure, Temperature, and Relative Humidity.....................1
2. Specifications ..............................................................1
2.1 Wind Speed ..............................................................................................1
2.2 Wind Direction.........................................................................................2
2.3 Precipitation..............................................................................................2
2.4 Barometric Pressure..................................................................................2
2.5 Air Temperature........................................................................................2
2.6 Relative Humidity.....................................................................................2
2.7 Assembly..................................................................................................2
3. Installation....................................................................2
3.1 Assembling the WXT510.........................................................................2
3.2 Mounting to a Campbell Scientific Crossarm...........................................4
4. Wiring Table.................................................................4
5. Example Programs......................................................4
5.1 CR10X Program.......................................................................................4
5.2 CR1000 Program......................................................................................5
Appendix
A. Configuring the WXT510 ........................................ A-1
Figures
1. Opened WXT510 with the PTU at the right...............................................3
2. A WXT510 with the PTU inserted inside of it...........................................3
A-1. Connection Setup Screen................................................................... A-1
A-2. Device Settings Screen...................................................................... A-2
A-3. Sensor Settings Screen ...................................................................... A-2
A-4. Message Settings Screen ................................................................... A-3
i
WXT510 Table of Contents
Table
1. Connections to Campbell Scientific Dataloggers....................................... 4
ii

WXT510 Weather Transmitter

1. General Description

The WXT510 Weather Transmitter, manufactured by Vaisala, measures wind speed and direction, precipitation, barometric pressure, temperature, and relative humidity—all in a single device that has no moving parts. The WXT510’s SDI-12 signal can be measured by any of our SDI-12 equipped dataloggers. The WXT510 is about the size of our larger Gill radiation shield, making it ideal for use with our CR200-series dataloggers in applications requiring quick, short-term deployment. However, the WXT510 is not intended for weather stations that require res earch -g rade performance.

1.1 Wind Speed and Direction

The WXT510's wind sensor consists of three equally spaced transducers that produce ultrasonic signals. Wind speed and direction are determined by measuring the time it takes for the ultrasonic signal of one transducer to travel to the other transducers. Wind direction is not calculated when the wind speed drops below 0.05 m/s. In this case, the last calculated direction output remains until wind speed increases. The computed wind speeds are independent of altitude, temperature, and humidity. The WXT510 is preconfigured to provide the minimum, average, and maximum values for both wind speed and direction. Default wind speed units are m/s.

1.2 Precipitation

The WXT510 uses the RAINCAP® Sensor to measure accumulated rainfall, rain intensity, and rain duration. Precipitation is measured one raindrop at a time. Whenever a raindrop hits the precipitation sensor, an electrical signal is produced that is proportional to the volume of the drop.
The sensor is also capable of distinguishing hail stones from raindrops. The measured rain and hail parameters are cumulative amounts of rain or hail, rain or hail intensity, and the duration of a shower.

1.3 Barometric Pressure, Temperature, and Relative Humidity

The WXT510 has a PTU module that contains a capacitive silicon BAROCAP® sensor for barometric pressure measurements, a capacitive ceramic THERMOCAP® sensor for air temperature measurements, and a capacitive thin film polymer HUMICAP® sensor for relative humidity measurements. The PTU is housed in a naturally aspirated radiation shield that protects the PTU and reflects solar radiation. Default units are °Celsius for temperature and hPa for barometric pressure.

2. Specifications

2.1 Wind Speed

Measurement Range: 0 to 60 m s Accuracy: ±0.3 m s
-1
±5% (36 to 60 m s
-1
or ±3% whichever is greater (0 to 35 m s-1);
-1
)
1
WXT510 Weather Transmitter

2.2 Wind Direction

2.3 Precipitation

2.4 Barometric Pressure

2.5 Air Temperature

Measurement Range: 0° to 360° Accuracy: ±3°
Rainfall: cumulative accumulation after latest automatic or manual reset. Accuracy: 5% (Due to the nature of the phenomenon, deviations caused by
spatial variations may exist in precipitation readings, especially in short time scale. The accuracy specification does not include possible wind
induced error.) Rain Duration: counting each ten second increment when droplet detected. Rain Intensity: one minute running average in ten second steps.
Measurement Range: 600 to 1100 hPa (mbar) Accuracy: ±0.5 hPa @ 0° to 30°C; ±1 hPa @ -52° to +60°C
Measurement Range: -52° to +60°C Accuracy: ±0.3°C @ +20°C

2.6 Relative Humidity

2.7 Assembly

3. Installation

3.1 Assembling the WXT510

Measurement Range: 0 to 100% RH Accuracy: ±3% RH @ 0 to 90% RH; ±5% RH @ 90 to 100% RH
Input Voltage: 5 to 30 Vdc Typical Current Drain: 3 mA with default measuring intervals Output: SDI-12 Operating Range: -52° to +60°C; 0 to 100% RH Dimensions: 9.4" (24.0 cm) height, 4.7" (12.0 cm) diameter Weight: 1.43 lbs (650 g)
1. Lift off the top of the transmitter.
2. Remove the PTU from the plastic bag and insert it into the WXT510 (see
Figures 1 and 2).
3. Replace the top.
4. Tighten the three fixing screws.
2
WXT510 Weather Transmitter
FIGURE 1. Opened WXT510 with the PTU at the right.
FIGURE 2. A WXT510 with the PTU inserted inside of it.
3
WXT510 Weather Transmitter

3.2 Mounting to a Campbell Scientific Crossarm

4. Wiring Table

TABLE 1. Connections to Campbell Scientific Dataloggers
The WXT510 is mounted on a CM202, CM204, or CM206 crossarm via the 18311 mounting pipe and the CM220 bracket. The 18311 pipe is shipped with the WXT510.
Color
Brown Power 12 V 12 V +12 SW Battery Clear (silver) or Red Blue SDI-12 Signal C1 C2 C2 C1 White SDI-12 Signal C1 C2 C2 C1 Green data ground G G G G
Yellow Optional heater
Pink Optional heater
Grey Not used Not used Not used Not used
Description
Power ground G G G G
power (see note)
ground (see note)
NOTE
Unless special ordered, the heater will not be operational for WXT510s purchased from Campbell Scientific. Although the heater is not operational, the WXT510 will have a pink and yellow wire. Do not connect the pink and yellow wire unless the heater is operational.
CR1000, CR800, CR850, CR3000, CR5000, CR9000(X)
12V 12V +12 SW Battery
G G G G
CR10(X), CR510
21X, CR23X, CR7
CR200

5. Example Programs

5.1 CR10X Program

The following example is the portion of a CR10X program that measures the WXT510. A complete program will include output processing instructions.
; wind direction wind speed
; Get WXT510 Values 1 - 6 (Dn=Wd min, Dm=Wd avg, Dx=Wd max, Sn=Ws min, Sm=Ws avg, Sx=Ws max)
22: SDI-12 Recorder (P105) ; 1: 0 SDI-12 Address 2: 1 Start Measurement (aM1!) ; corresponds with Wind message Command R1 3: 2 Port ; control port for SDI-12 comms 4: 15 Loc [ Value1 ] 5: 1.0 Mult 6: 0.0 Offset
4
WXT510 Weather Transmitter
23: Excitation with Delay (P22) 1: 1 Ex Channel 2: 0 Delay W/Ex (0.01 sec units) 3: 50 Delay After Ex (0.01 sec units) 4: 0 mV Excitation
; Get WXT510 Values 7 - 9 (Ta= air temp, Ua= rel humidity, Pa= air pressure)
24: SDI-12 Recorder (P105) 1: 0 SDI-12 Address 2: 2 Start Measurement (aM2!) ; corresponds with Pressure Humidity and 3: 2 Port Temp Message Command R2 4: 21 Loc [ Value7 ] 5: 1.0 Multiplier 6: 0.0 Offset
25: Excitation with Delay (P22) 1: 1 Ex Channel 2: 0 Delay W/Ex (0.01 sec units) 3: 50 Delay After Ex (0.01 sec units) 4: 0 mV Excitation
; rain hail
; Get WXT510 Values 10 - 15 (Rc= amount, Rd= dur ation, Ri = intens ity, Hc= amount, H d= duration, Hi = intensity)
26: SDI-12 Recorder (P105) 1: 0 SDI-12 Address 2: 3 Start Measurement (aM3!) ; corresponds with Precip Message Command R3 3: 2 Port 4: 24 Loc [ Value10 ] 5: 1.0 Multiplier 6: 0.0 Offset

5.2 CR1000 Program

The following example is the portion of a CR1000 program that measures the WXT510.
'CR1000
'Read WXT510 every 15 seconds and log data every hour 'assuming WXT510 is programmed for 15 second data interval 'SDI12 connected on C7 of CR1000 'WXT510 SDI12 address must be zero
'Declare Variables and Units
Public Batt_Volt Public WXT510(15)
Alias WXT510(1)=Wdmin Alias WXT510(2)=Wdavg Alias WXT510(3)=Wdmax Alias WXT510(4)=Wsmin Alias WXT510(5)=Wsavg
5
WXT510 Weather Transmitter
Alias WXT510(6)=Wsmax Alias WXT510(7)=airtemp Alias WXT510(8)=relhumidity Alias WXT510(9)=airpressure Alias WXT510(10)=Ramount Alias WXT510(11)=Rduration Alias WXT510(12)=Rintensity Alias WXT510(13)=Hamount Alias WXT510(14)=Hduration Alias WXT510(15)=Hintensity
'Define Data Tables
DataTable(Table1,True,-1) DataInterval(0,60,Min,10)
'final data format goes here
Minimum(1,Batt_Volt,FP2,False,False) EndTable
'Main Program
BeginProg Scan(15,Sec,1,0)
'Default Datalogger Battery Voltage measurement Batt_Volt:
Battery(Batt_Volt)
'WXT510 SDI-12 Sensor measurement s 1 -6 :
SDI12Recorder(WXT510(1),7,"0","M1!",1,0)
'WXT510 SDI-12 Sensor measurement s 7 -9 :
SDI12Recorder(WXT510(7),7,"0","M2!",1,0)
'WXT510 SDI-12 Sensor measure ment s 1 0- 1 5:
SDI12Recorder(WXT510(10),7,"0","M3!",1,0)
'Call Data Tables and Store Data
CallTable(Table1) NextScan EndProg
6

Appendix A. Configuring the WXT510

NOTE
Modifying the default configuration of the WXT510 requires the purchase of a grey configuration cable; contact Campbell Scientific for more information.
1. Connect one end of the grey Configuration Cable to a COM port on the PC
and the other end of the cable to the “Service” connector on the WXT510.
2. Connect a 9 V battery to the Configuration Cable’s battery clip. The
female contact of the battery clip is (+).
3. On your PC, run Vaisala’s WXT Configuration Tool Software and go to
the Connection Setup Screen.
4. Enter the settings for each of the Connection Setup Screen’s parameters
(see Figure A-1). The default settings are:
• Connect using: enter the COM Port in which the Configuration
Cable is connected.
• Bits per second: 19200
• Parity: 8-N-1
5. Click on the OK button.
FIGURE A-1. Connection Setup Screen
A-1
Appendix A. Configuring the WXT510
6. Go to the Device Settings Screen and enter the settings for each of the
parameters (see Figure A-2). Default settings are:
• Device—Address: 0
• Heating and self diagnostic—verify Enable Heating is NOT
selected.
• Heating and self diagnostics—Update Interval: 15 s
• Communication protocol—select SDI-1 2 v 1. 3
• User port settings—Port type: SDI-12
FIGURE A-2. Device Settings Screen
7. Click on the OK button.
8. Go to the Sensor Settings Screen (see Figure A-3). The default Wind and
PTU Update intervals are set to 5 s.
A-2
FIGURE A-3. Sensor Settings Screen
Appendix A. Configuring the WXT510
9. Click on the OK button.
10. Go to the Message Settings Screen and verify that Message Settings are as
desired. The default settings are shown in Figure A-4.
Note: Hail accumulation should be checked.
FIGURE A-4. Message Settings Screen
11. Click on the OK button.
12. Close the WXT Configuration Tool.
13. Remove the 9 V battery.
14. Disconnect the Configuration Cable.
15. Secure protective service port cap on PTU.
A-3
Appendix A. Configuring the WXT510
This is a blank page.
A-4
This is a blank page.
Campbell Scientific Companies
Campbell Scientific, Inc. (CSI)
815 West 1800 North
Logan, Utah 84321
UNITED STATES www.campbellsci.com info@campbellsci.com
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PO Box 2450
Somerset West 7129
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cleroux@csafrica.co.za
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PO Box 444
Thuringowa Central QLD 4812 AUSTRALIA www.campbellsci.com.au
info@campbellsci.com.au
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CEP: 005543-000 São Paulo SP BRAZIL
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suporte@campbellsci.com.br
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11564 - 149th Street NW
Edmonton, Alberta T5M 1W7
CANADA
www.campbellsci.ca
dataloggers@campbellsci.ca
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Campbell Park
80 Hathern Road
Shepshed, Loughborough LE12 9GX
UNITED KINGDOM
www.campbellsci.co.uk
sales@campbellsci.co.uk
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Miniparc du Verger - Bat. H
1, rue de Terre Neuve - Les Ulis
91967 COURTABOEUF CEDEX
FRANCE
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Psg. Font 14, local 8
08013 Barcelona
SPAIN www.campbellsci.es info@campbellsci.es
Please visit www.campbellsci.com to obtain contact information for your local US or International representative.
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