WXT520 Weather Transmitter User Manual Issued 23.1.13 Copyright © 2006-2013 Campbell Scientific Inc. Printed under licence by Campbell Scientific Ltd.
Guarantee This equipment is guaranteed against defects in materials and workmanship. This guarantee applies for twelve months from date of delivery. We will repair or replace products which prove to be defective during the guarantee period provided they are returned to us prepaid.
PLEASE READ FIRST About this manual Please note that this manual was originally produced by Campbell Scientific Inc. primarily for the North American market. Some spellings, weights and measures may reflect this origin. Some useful conversion factors: Area: 1 in2 (square inch) = 645 mm2 Length: 1 in. (inch) = 25.4 mm 1 ft (foot) = 304.8 mm 1 yard = 0.914 m 1 mile = 1.609 km Mass: 1 oz. (ounce) = 28.35 g 1 lb (pound weight) = 0.454 kg Pressure: 1 psi (lb/in2) = 68.95 mb Volume: 1 UK pint = 568.
Contents PDF viewers: These page numbers refer to the printed version of this document. Use the PDF reader bookmarks tab for links to specific sections. 1. Introduction ................................................................. 1 2. Cautionary Statements............................................... 1 3. Initial Inspection ......................................................... 1 4. Overview ...................................................................... 1 4.1 4.2 4.
Figures 6-1. 6-2. A-1. A-2. A-3. A-4. 008290 WXT520 IP66 Mount ...............................................................3 Optional Bird Spike Device ...................................................................4 Connection Setup screen ................................................................... A-1 Device Settings screen ...................................................................... A-2 Sensor Settings screen ......................................................................
WXT520 Weather Transmitter 1. Introduction The WXT520 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 WXT520’s SDI12 signal can be measured by any of our SDI-12 equipped dataloggers.
WXT520 Weather Transmitter 4.3 Barometric Pressure, Temperature, and Relative Humidity The WXT520 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.
User Manual 5.7 Assembly Compatible Dataloggers: CR200(X)-series, CR800, CR850, CR1000, CR3000, CR5000, CR510, CR10(X), CR23X Electromagnetic Compatibility: Complies with EMC standard EN61326-1; IEC standards: IEC 60945/61000-4-4, IEC 60945/61000-4-2 Input Voltage: 5 to 30 Vdc Typical Current Drain @ 12 Vdc: 3 mA with default measuring intervals; 0.
WXT520 Weather Transmitter 6.3 Bird Spike Device The Bird Spike Device is fastened on top of the WXT520 using the set screw provided (see Figure 6-2). This device is used to discourage birds from roosting on the WXT520. It consists of a metallic band with spikes pointing upward. The spike’s shape and location ensure minimal interference of wind and rain measurements. NOTES: (1) The spikes are designed not to hurt the birds.
User Manual Yellow Pink Optional heater power (see note) Optional heater ground (see note) Grey NOTE 6.5 12V 12V +12 SW Battery G G G G Not used Not used Not used Not used Unless special ordered, the heater will not be operational for WXT520s purchased from Campbell Scientific. Although the heater is not operational, the WXT520 will have a pink and yellow wire. Do not connect the pink and yellow wire unless the heater is operational.
WXT520 Weather Transmitter 6.6.1.1 Example CR1000 Program Although the following program is for the CR1000, the CR800, CR850, CR3000, and CR5000 are programmed similarly. This program uses the “aR!” command.
User Manual 6.6.1.
WXT520 Weather Transmitter 6.6.2 Edlog Programming Our CR500, CR510, CR10(X), and CR23X dataloggers are programmed with Edlog. These dataloggers use Instruction 105 to read the WXT520. Your datalogger manual has a detailed explanation of Instruction 105. Please note that Edlog only allocates one input location for Instruction 105. Additional input locations need to be inserted manually using the Input Location Editor. 6.6.2.
Appendix A. Configuring the WXT520 NOTE Modifying the default configuration of the WXT520 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 WXT520. 2. Connect a 9 V battery to the Configuration Cable’s battery clip. The female contact of the battery clip is (+). 3.
Appendix A. Configuring the WXT520 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-12 v1.3 • User port settings—Port type: SDI-12, select continuous measurements Figure A-2. Device Settings screen A-2 7. Click on the OK button. 8.
Appendix A. Configuring the WXT520 Figure A-3. Sensor Settings screen 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.
Appendix A. Configuring the WXT520 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.
CAMPBELL SCIENTIFIC COMPANIES Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za • sales@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA) PO Box 8108 Garbutt Post Shop QLD 4814 AUSTRALIA www.campbellsci.com.au • info@campbellsci.com.au Campbell Scientific do Brazil Ltda.
