USER'S GUIDE
Anemometer
WAA151
M210293en-A
PUBLISHED BY |
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Vaisala Oyj |
Phone (int.):+358 |
9 8949 1 |
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P.O. Box 26 |
Fax: |
+358 |
9 8949 2227 |
FIN-00421 Helsinki |
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Finland |
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Visit our Internet pages at http://www.vaisala.com/
© Vaisala 2002
No part of this manual may be reproduced in any form or by any means, electronic or mechanical (including photocopying), nor may its contents be communicated to a third party without prior written permission of the copyright holder.
The contents are subject to change without prior notice.
Please observe that this manual does not create any legally binding obligations for Vaisala towards the customer or end user. All legally binding commitments and agreements are included exclusively in the applicable supply contract or Conditions of Sale.
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Table of Contents |
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CHAPTER 1 |
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GENERAL INFORMATION....................................................... |
3 |
About This Manual.................................................. |
3 |
Contents of This Manual....................................... |
3 |
Version Information............................................... |
4 |
Related Manuals................................................... |
4 |
Safety....................................................................... |
4 |
General Safety Considerations............................. |
4 |
Product Related Safety Precautions..................... |
5 |
ESD Protection ..................................................... |
5 |
Regulatory Compliances........................................ |
6 |
Warranty .................................................................. |
6 |
CHAPTER 2 |
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PRODUCT OVERVIEW............................................................. |
7 |
Introduction to WAA151 Anemometer .................. |
7 |
CHAPTER 3 |
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INSTALLATION ........................................................................ |
9 |
Selecting Location.................................................. |
9 |
Installation Procedure .......................................... |
10 |
Mounting............................................................. |
10 |
Alignment............................................................ |
12 |
Verification.......................................................... |
12 |
Connector.............................................................. |
12 |
CHAPTER 4 |
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MAINTENANCE ...................................................................... |
15 |
Periodic Maintenance........................................... |
15 |
Cleaning ............................................................. |
15 |
Testing Proper Operation ................................... |
15 |
Replacing Consumables..................................... |
16 |
Parts List for Consumables ................................. |
20 |
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CHAPTER 5 |
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TROUBLESHOOTING............................................................ |
21 |
Common Problems .............................................. |
21 |
Getting Help.......................................................... |
22 |
Return Instructions .............................................. |
23 |
CHAPTER 6 |
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TECHNICAL DATA................................................................. |
25 |
Specifications....................................................... |
25 |
MTBF ..................................................................... |
26 |
MTTR ..................................................................... |
26 |
List of Figures |
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Figure 1 |
WAA151 Anemometer.............................................. |
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Figure 2 |
Recommended Mast Location in Open Area............ |
9 |
Figure 3 |
Recommended Mast Length on the Top of |
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Building .................................................................. |
10 |
Figure 4 |
Mounting of Wind Sensor ....................................... |
11 |
Figure 5 |
WAA151 Connector................................................ |
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Figure 6 |
WAA151 Assembly................................................. |
19 |
List of Tables |
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Table 1 |
Manual Revisions ..................................................... |
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Table 2 |
Related Manuals ...................................................... |
4 |
Table 3 |
Available Spare Parts............................................. |
20 |
Table 4 |
Some Common Problems and their Remedies ...... |
21 |
Table 5 |
WAA151 Anemometer Specifications..................... |
25 |
Table 6 |
MTBF Values.......................................................... |
26 |
2 ______________________________________________________ M210293en-A
Chapter 1 ___________________________________________ General Information
CHAPTER 1
GENERAL INFORMATION
About This Manual
This manual provides information for installing, operating, and maintaining the WAA151 Anemometer.
Contents of This Manual
This manual consists of the following chapters:
-Chapter 1, General Information, provides important safety and revision history information for the product.
-Chapter 2, Product Overview, introduces the WAA151 Anemometer features.
-Chapter 3, Installation, provides you with information that is intended to help you install this product.
-Chapter 4, Maintenance, provides information that is needed in the basic maintenance of the WAA151 Anemometer.
-Chapter 5, Troubleshooting, describes common problems, their probable causes and remedies, and contact information.
-Chapter 6, Technical Data, provides the technical data of the WAA151 Anemometer.
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Version Information
Table 1 Manual Revisions
Manual Code |
Description |
M210293en-A |
This manual, the first version of the |
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WAA151 Anemometer User's Guide. |
Related Manuals
Table 2 |
Related Manuals |
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Manual Code |
Manual Name |
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M210294en |
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WAV151 Wind Vane - User's Guide |
Safety
General Safety Considerations
Throughout the manual, important safety considerations are highlighted as follows:
WARNING Warning alerts you to a serious hazard. If you do not read and follow instructions very carefully at this point, there is
a risk of injury or even death.
CAUTION |
Caution warns you of a potential hazard. If you do not read |
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and follow instructions carefully at this point, the product |
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could be damaged or important data could be lost. |
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NOTE |
Note highlights important information on using the product. |
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4 ______________________________________________________ M210293en-A
Chapter 1 ___________________________________________ General Information
Product Related Safety
Precautions
The WAA151 Anemometer delivered to you has been tested for safety and approved as shipped from the factory. Note the following precautions:
WARNING Ground the product, and verify outdoor installation grounding periodically to minimize shock hazard.
CAUTION |
Do not modify the unit. Improper modification can damage |
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the product or lead to malfunction. |
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ESD Protection
Electrostatic Discharge (ESD) can cause immediate or latent damage to electronic circuits. Vaisala products are adequately protected against ESD for their intended use. However, it is possible to damage the product by delivering electrostatic discharges when touching, 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 ESD workbench. When this is not possible, ground yourself to the equipment chassis before touching the boards. Ground yourself with a wrist strap and a resistive connection cord. When neither of the above is possible, touch a conductive part of the equipment chassis with your other hand before touching the boards.
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-Always hold the boards by the edges and avoid touching the component contacts.
Regulatory Compliances
The WAA151 complies with the following performance and environmental test standards:
-Wind tunnel tests per ASTM standard method D5096-96 (for starting threshold, distance constant, transfer function; refer to Chapter 6, Technical Data on page 25)
-Exploratory vibration test per MIL-STD-167-1
-Humidity test per MIL-STD-810E, Method 507.3
-Salt fog test per MIL-STD-810E, Method 509.3
Warranty
For certain products Vaisala normally gives a limited one year 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.
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Chapter 2 ____________________________________________ Product Overview
CHAPTER 2
PRODUCT OVERVIEW
This chapter introduces the WAA151 Anemometer features.
Introduction to WAA151 Anemometer
The WAA151 is an optoelectronic, fast-response, lowthreshold anemometer. In the cup wheel it has three lightweight conical cups providing excellent linearity over the entire operating range, up to 75 m/s. Rotated by the wind, a chopper disc attached to the cup wheel’s shaft cuts an infrared light beam 14 times per revolution, generating a pulse train output from a phototransistor.
The output pulse rate can be regarded directly proportional to wind speed, for example, 246 Hz = 24.6 m/s. For best available accuracy, however, the characteristic transfer function should be used, see section Specifications on page 25, to compensate for starting inertia and slight overspeeding.
The heating element in the shaft tunnel keeps the temperature of the bearings above the freezing level in cold climates. Nominally it provides 10 W of heating power. It is recommended to use a thermostat switch in the sensor cross arm for switching the heating power on below +4 °C.
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