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Vaisala WAC151 User Manual Download Page 20

4. Maintenance

4.1 Visual checking

Every 1 to 2 years, check that the component board is not corroded. A probable cause for
corrosion may be that the box cover or cable gland have not been tightened properly.

WAC151 User Guide

M210349EN-C

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Summary of Contents for WAC151

Page 1: ...M210349EN C User Guide Cross Arm WAC151 ...

Page 2: ...ginal English versions In ambiguous cases the English versions are applicable not the translations The contents of this document are subject to change without prior notice Local rules and regulations may vary and they shall take precedence over the information contained in this document Vaisala makes no representations on this document s compliance with the local rules and regulations applicable a...

Page 3: ...n 7 3 1 Selecting location 7 3 2 Installing Cross Arm WAC151 9 3 3 Connecting wind sensors 12 3 3 1 Wiring wind sensors WAA151 and WAV151 13 3 3 2 Wiring wind sensors WAA252 and WAV252 13 3 4 Mounting wind set on mast 14 3 5 Aligning wind set 16 4 Maintenance 18 4 1 Visual checking 18 5 Troubleshooting 19 6 Technical data 20 6 1 WAC151 specifications 20 Technical support 21 Warranty and product re...

Page 4: ...WAC151 User Guide M210349EN C 2 ...

Page 5: ...ed manuals Document code Name M210293EN Vaisala Anemometer WAA151 User Guide M210294EN Vaisala Wind Vane WAV151 User Guide 1 3 Documentation conventions Warning alerts you to a serious hazard If you do not read and follow instructions carefully at this point there is a risk of injury or even death WARNING Caution warns you of a potential hazard If you do not read and follow instructions carefully ...

Page 6: ...ates that you need to take some notes during the task 1 4 Trademarks Vaisalaâ is a registered trademark of Vaisala Oyj All other product or company names that may be mentioned in this publication are trade names trademarks or registered trademarks of their respective owners WAC151 User Guide M210349EN C 4 ...

Page 7: ...rmostat switch for controlling WAA151 and WAV151 shaft heating The thermostat switches on in temperatures below 4 C 39 2 F WAA252 and WAV252 do not use the cross arm thermostat switch They have the temperature control integrated in the sensor electronics The junction box has 4 cable glands Typically 3 cable glands are in use 2 for sensor cables and 1 for the signal cable The fourth gland is reserv...

Page 8: ...ching removing or inserting any objects in the equipment housing To avoid delivering high static voltages to the product Handle ESD sensitive components on a properly grounded and protected ESD workbench or by grounding yourself to the equipment chassis with a wrist strap and a resistive connection cord If you are unable to take either precaution touch a conductive part of the equipment chassis wi...

Page 9: ...ent clearance for the wind sensors Do not install wind sensors next to a building or any other object that can affect the flow of air Installations on top of high buildings or masts and in sites on open grounds are vulnerable to lightning strikes A nearby lightning strike may induce a high voltage surge not tolerable by the internal surge suppressors of the instrument Additional protection is need...

Page 10: ... does not remarkably disturb wind measurement at a minimum distance of 10 h There must be at least 150 m 500 ft open area in all directions from the mast Minimum distance between the mast and obstacles is ten times the height of an obstacle WAC151 User Guide M210349EN C 8 ...

Page 11: ... install the equipment in tropical marine or cold environments keep the equipment within its specific operating conditions To avoid dust dirt or water from entering the equipment tighten the cable glands properly Using a long cable between different units sensors transmitters power supplies and displays can cause a lethal surge voltage if a lightning strike occurs in the vicinity Always ground the...

Page 12: ...e braided cable shield over the plastic sleeve 4 Connect the wires to the line terminal inside the junction box See Wiring wind sensors WAA151 and WAV151 page 13 The wiring diagram inside the box is applicable only for WAA151 and WAV151 sensors with shaft heating 5 Tighten the output cable glands 6 Reattach the cover carefully with four screws Make sure that the gasket seals the junction box prope...

Page 13: ...7 Attach the cross arm to the top of the pole mast with the mounting clamp Chapter 3 Installation 11 ...

Page 14: ...vane tail assembly 3 Cross arm 4 WAC151 5 Connector 6 Mounting flange 7 South 8 North 3 3 Connecting wind sensors The cables for wind sensors WAA151 and WAV151 are connected in the factory If you install wind sensors WAA252 and WAV252 change the connections in the WAC151 junction box WAC151 User Guide M210349EN C 12 ...

Page 15: ...trol of the shaft heating power Figure 3 Wiring diagram for WAA151 and WAV151 installed on WAC151 3 3 2 Wiring wind sensors WAA252 and WAV252 If you use the standard power and signal cables ZZ45049 and ZZ45048 follow these instructions 1 For the power supply connect the YEL GRN and PNK wires to the screw terminal 2 and the WHT BRN and GRY wires to the terminal 3 2 For the signal output connect wir...

Page 16: ...Power Supply as a power source It has a mast mountable all weather enclosure WHP25 is sold only as a spare part Figure 4 Wiring diagram for WAA252 and WAV252 installed on WAC151 3 4 Mounting wind set on mast 6 mm Allen key You can install the wind set on top of a 60 mm 2 36 in mast WAC151 User Guide M210349EN C 14 ...

Page 17: ...1 Place the cross arm on the mast S N 2 Tighten the bolts Tightening torque 5 Nm 3 Align the wind set Chapter 3 Installation 15 ...

Page 18: ...Figure 5 WA15 installed on top of mast 3 5 Aligning wind set Compass The mast must be erected before aligning WAC151 User Guide M210349EN C 16 ...

Page 19: ...1 To align the wind set on a mast use a compass or other similar method to make sure that the wind vane end of the cross arm is pointing to the North 2 Connect the sensor cable Chapter 3 Installation 17 ...

Page 20: ...Visual checking Every 1 to 2 years check that the component board is not corroded A probable cause for corrosion may be that the box cover or cable gland have not been tightened properly WAC151 User Guide M210349EN C 18 ...

Page 21: ... does not receive data Improper or loose connections Check the wiring and tighten the screw terminals Shaft heating of WAC151 and WAV151 is not working Improper or loose connections Check the wiring and tighten the screw terminals Heating is not connected Check the connections Chapter 5 Troubleshooting 19 ...

Page 22: ...C 39 2 F 3 C Disconnects at 11 C 51 8 F 3 C Mounting Clamp for a pole mast with a nominal outside diameter 60 mm 2 36 in Material cross arm Aluminum anodized Material junction box Aluminum painted Dimensions cross arm length 800 mm 31 50 in Dimensions junction box 125 x 80 x 57 mm 4 92 x 3 15 x 2 24 in Weight 1 5 kg 2 20 lb without sensors Table 5 WAC151 compliance Property Description Value Compl...

Page 23: ...ala com warranty Please observe that any such warranty may not be valid in case of damage due to normal wear and tear exceptional operating conditions negligent handling or installation or unauthorized modifications Please see the applicable supply contract or Conditions of Sale for details of the warranty for each product 1 Read the warranty information 2 Contact Vaisala technical support and req...

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