Vaisala WS425FG User Manual
r
USER'S GUIDE
Vaisala Ultrasonic Wind Senso
WS425 F/G
M210713EN-C
PUBLISHED BY
Vaisala Oyj Phone (int.): +358 9 8949 1
P.O. Box 26 Fax: +358 9 8949 2227
FIN-00421 Helsinki
Finland
Visit our Internet pages at http://www.vaisala.com/
© Vaisala 2006
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
CHAPTER 1
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Contents of This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
General Safety Considerations . . . . . . . . . . . . . . . . . . . . .10
Product Related Safety Precautions . . . . . . . . . . . . . . . . .11
ESD Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
License Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
CHAPTER 2
PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Product History - ASOS Program . . . . . . . . . . . . . . . . . . . .15
Introduction to Ultrasonic Wind Sensor
WS425 F/G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Ultrasonic Wind Sensor WS425 F/G Components . . . . . . .17
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
CHAPTER 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Installation of Mounting Arm and Sensor Cable . . . . . . . .25
Installation of Wind Sensor . . . . . . . . . . . . . . . . . . . . . . . . .26
Installation of Power Supply . . . . . . . . . . . . . . . . . . . . . . . .26
Installation of Power Supply on Pole Mast . . . . . . . . . . . . .26
Connecting Lightning Ground . . . . . . . . . . . . . . . . . . . . . .27
Connecting Fiber Optic Cable . . . . . . . . . . . . . . . . . . . . . .28
Connecting Fiber Optic Modem FOM111 . . . . . . . . . . . . .28
Connecting AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Connecting Sensor Interface Cable . . . . . . . . . . . . . . . . . .29
Power Supply Terminal Blocks . . . . . . . . . . . . . . . . . . . . .31
Conducting Off-Line Test . . . . . . . . . . . . . . . . . . . . . . . . . .31
Aligning the Wind Sensor . . . . . . . . . . . . . . . . . . . . . . . . . .32
Magnetic Declination Correction . . . . . . . . . . . . . . . . . . . .32
Compass Alignment with Mast Adapter . . . . . . . . . . . . . . .33
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CHAPTER 4
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Power On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Diagnostic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
RS-232 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
WB Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
VFIRMWARE Command . . . . . . . . . . . . . . . . . . . . . . . . . .40
WA Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Example of the WA Command Message. . . . . . . . . . . 42
WL Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
WM Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
WN Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
WS Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
WJ Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
WD Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
WF Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Example of the WF Command Message . . . . . . . . . . . 48
WR Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
WATE Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
WCAL Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
WH Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
WT Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
WSST Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
WSTK Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
WCDV Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
CHAPTER 5
OPERATING PRINCIPLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Wind Measurement Principle . . . . . . . . . . . . . . . . . . . . . . . .59
Power Supply Operating Principle . . . . . . . . . . . . . . . . . . .61
Verifier Associated Operations . . . . . . . . . . . . . . . . . . . . . .63
CHAPTER 6
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Visual Inspection of Ultrasonic Wind Sensor WS425 F/G .65
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Corrective Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
Wind Sensor Removal and Installation . . . . . . . . . . . . . . .74
Removal Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 74
Power Supply Removal and Installation . . . . . . . . . . . . . . .75
Power Supply Module Removal and Installation . . . . . . . .77
Removal Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 78
FOM Assembly Removal and Installation . . . . . . . . . . . . .78
Removal Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 79
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Sensor Interface Cable Removal and Installation . . . . . . .80
Firmware Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Download Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Recovery Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Vaisala Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
CHAPTER 7
TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Field Replaceable Units . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
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List of Figures
Figure 1 Ultrasonic Wind Sensor WS425 F/G . . . . . . . . . . . . . . . . . . . .16
Figure 2 Components Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Figure 3 Schematic of Ultrasonic Wind Sensor WS425 F/G . . . . . . . . .18
Figure 4 Ultrasonic Wind Sensor Power Supply . . . . . . . . . . . . . . . . . .19
Figure 5 Power Supply and FOM Module Assembly . . . . . . . . . . . . . . .20
Figure 6 Cable Assembly, Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 7 Fiber Optic Modem FOM111 . . . . . . . . . . . . . . . . . . . . . . . . . .21
Figure 8 WS425 F/G Tower Assembly. . . . . . . . . . . . . . . . . . . . . . . . . .24
Figure 9 Sensor Cable Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Figure 10 Power Supply and Mount. . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Figure 11 Power Supply Terminal Blocks . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 12 Sketch of Magnetic Declination . . . . . . . . . . . . . . . . . . . . . . . .33
Figure 13 Correctly AlignedWS425 F/G Sensor. . . . . . . . . . . . . . . . . . . .34
Figure 14 Adjusting the N-S Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 15 Ultrasonic Wind Sensor Block Diagram. . . . . . . . . . . . . . . . . .60
Figure 16 Power Supply Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . .62
Figure 17 Solder Spot and Sensor Handling . . . . . . . . . . . . . . . . . . . . . .67
Figure 18 Field Verifier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Figure 19 Field Verifier with Cloth Bag. . . . . . . . . . . . . . . . . . . . . . . . . . .68
Figure 20 Fault Isolation Flow Chart: Sensor Not Responding Part 1 . . .70
Figure 21 Fault Isolation Flow Chart: Sensor Not Responding Part 2 . . .71
Figure 22 Fault Isolation Flow Chart: Sensor Responds with F Status . .72
Figure 23 Fault Isolation Flow Chart: Sensor Responds with H Status . .73
Figure 24 Sensor Cable Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . .88
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List of Tables
Table 1 Terminal Block 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Table 2 Terminal Block 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Table 3 Ultrasonic Wind Interrogation Requests. . . . . . . . . . . . . . . . . . . .39
Table 4 Explanation of the WA Command Message . . . . . . . . . . . . . . . .42
Table 5 Explanation of the WF Command Message. . . . . . . . . . . . . . . . .48
Table 6 Field Replaceable Units of Ultrasonic Wind Sensor WS425 F/G.86
Table 7 Wind Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Table 8 Wind Direction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Table 11 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Table 9 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Table 10 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
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Chapter 1 ________________________________________________________ General Information
CHAPTER 1
GENERAL INFORMATION
This chapter provides general notes for the product.
About This Manual
This manual provides information for installing, operating, and
maintaining the product.
Contents of This Manual
This manual consists of the following chapters:
- Chapter 1, General Information: This chapter provides general
notes for the product.
- Chapter 2, Product Overview: This chapter introduces the features
and advantages of Vaisala Ultrasonic Wind Sensor WS425 F/G.
- Chapter 3, Installation: This chapter provides you with information
on the installation and alignment procedures, and connections of
the power supply and fiber optic modem.
- Chapter 4, Operation: This chapter contains information needed to
operate Vaisala Ultrasonic Wind Sensor WS425 F/G.
- Chapter 5, Operating Principle: This chapter provides you with a
brief explanation of the operating principles of Vaisala Ultrasonic
Wind Sensor WS425 F/G and its power supply.
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- Chapter 6, Maintenance: This chapter contains instructions for the
basic maintenance, fault isolation and installation and removal of
the field replaceable units of the Vaisala Ultrasonic Wind Sensor
WS425 F/G.
- Chapter 7, Technical Data: This chapter provides the technical data
of the product and lists the field replaceable units, and the
accessories.
Feedback
Vaisala Customer Documentation Team welcomes your comments and
suggestions on the quality and usefulness of this publication. If you find
errors or have other suggestions for improvement, please indicate the
chapter, section, and page number. You can send comments to us by email: manuals@vaisala.com
.
Safety
WARNING
CAUTION
NOTE
General Safety Considerations
Throughout the manual, important safety considerations are highlighted
as follows:
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 warns you of a potential hazard. If you do not read and follow
instructions carefully at this point, the product could be damaged or
important data could be lost.
Note highlights important information on using the product.
10 ______________________________________________________________________________
Chapter 1 ________________________________________________________ General Information
Product Related Safety Precautions
The Vaisala Ultrasonic Wind Sensor WS425 F/G delivered to you has
been tested for safety and approved as shipped from the factory. Note
the following precautions:
WARNING
CAUTION
Ground the product, and verify outdoor installation grounding
periodically to minimize shock hazard.
Do not modify the unit. Improper modification can damage the
product or lead to malfunction.
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 with a wrist strap and a resistive connection cord to the
equipment chassis before touching the boards. When neither of the
above is possible, at least touch a conductive part of the equipment
chassis with your other hand before touching the boards.
- Always hold the boards by the edges and avoid touching the
component contacts.
Recycling
Recycle all applicable material.
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Dispose of batteries and the unit according to statutory regulations.
Do not dispose of with regular household refuse.
License Agreement
All rights to any software are held by Vaisala or third parties. The
customer is allowed to use the software only to the extent that is
provided by the applicable supply contract or Software License
Agreement.
Warranty
Vaisala hereby represents and warrants all Products manufactured by
Vaisala and sold hereunder to be free from defects in workmanship or
material during a period of twelve (12) months from the date of delivery
save for products for which a special warranty is given. If any Product
proves however to be defective in workmanship or material within the
period herein provided Vaisala undertakes to the exclusion of any other
remedy to repair or at its own option replace the defective Product or
part thereof free of charge and otherwise on the same conditions as for
the original Product or part without extension to original warranty time.
Defective parts replaced in accordance with this clause shall be placed
at the disposal of Vaisala.
Vaisala also warrants the quality of all repair and service works
performed by its employees to products sold by it. In case the repair or
service works should appear inadequate or faulty and should this cause
malfunction or nonfunction of the product to which the service was
performed Vaisala shall at its free option either repair or have repaired
or replace the product in question. The working hours used by
employees of Vaisala for such repair or replacement shall be free of
charge to the client. This service warranty shall be valid for a period of
six (6) months from the date the service measures were completed.
This warranty is however subject to following conditions:
a)A substantiated written claim as to any alleged defects shall have been
received by Vaisala within thirty (30) days after the defect or fault
became known or occurred, and
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Chapter 1 ________________________________________________________ General Information
b)The allegedly defective Product or part shall, should Vaisala so
require, be sent to the works of Vaisala or to such other place as Vaisala
may indicate in writing, freight and insurance prepaid and properly
packed and labelled, unless Vaisala agrees to inspect and repair the
Product or replace it on site.
This warranty does not however apply when the defect has been caused
through
a)normal wear and tear or accident;
b)misuse or other unsuitable or unauthorized use of the Product or
negligence or error in storing, maintaining or in handling the Product or
any equipment thereof;
c)wrong installation or assembly or failure to service the Product or
otherwise follow Vaisala's service instructions including any repairs or
installation or assembly or service made by unauthorized personnel not
approved by Vaisala or replacements with parts not manufactured or
supplied by Vaisala;
d)modifications or changes of the Product as well as any adding to it
without Vaisala's prior authorization;
e)other factors depending on the Customer or a third party.
Notwithstanding the aforesaid Vaisala's liability under this clause shall
not apply to any defects arising out of materials, designs or instructions
provided by the Customer.
This warranty is expressly in lieu of and excludes all other conditions,
warranties and liabilities, express or implied, whether under law, statute
or otherwise, including without limitation any implied warranties of
merchantability or fitness for a particular purpose and all other
obligations and liabilities of Vaisala or its representatives with respect
to any defect or deficiency applicable to or resulting directly or
indirectly from the Products supplied hereunder, which obligations and
liabilities are hereby expressly cancelled and waived. Vaisala's liability
shall under no circumstances exceed the invoice price of any Product
for which a warranty claim is made, nor shall Vaisala in any
circumstances be liable for lost profits or other consequential loss
whether direct or indirect or for special damages.
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14 ______________________________________________________________________________
Chapter 2 __________________________________________________________ Product Overview
CHAPTER 2
PRODUCT OVERVIEW
This chapter introduces the features and advantages of Vaisala
Ultrasonic Wind Sensor WS425 F/G.
Product History - ASOS Program
Vaisala Ultrasonic Wind Sensor WS425 F/G was originally developed
for the Automated Surface Observing Systems (ASOS) program, and
due to this fact this document contains references to the ASOS.
The ASOS program is a joint effort of the US National Weather Service
(NWS), the Federal Aviation Administration (FAA), and the
Department of Defense (DOD). The ASOS serves as the primary
weather observing network of the United States. It is designed to
support weather forecast activities and aviation operations and, at the
same time, support the needs of the meteorological, hydrological, and
climatological research communities.
Introduction to Ultrasonic Wind Sensor
WS425 F/G
Thank you for choosing Vaisala Ultrasonic Wind Sensor WS425 F/G.
It measures wind speed and direction from the smallest breeze to
hurricane force gales, including gusts.
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The patented three transducer layout provides superior data availability
and accuracy in all wind directions. The effects of temperature,
humidity, and pressure are fully compensated. The sensor
communicates to the system or data logger via an fiber optic
connection. The message format is ASOS compatible.
The device has no moving parts, so it is virtually maintenance free. The
stainless steel construction makes it resistant to contamination and
corrosion. The sensor heating function of the ice-free model prevents
freezing rain and snow build-ups and thus guarantees uninterrupted
operations throughout the year.
0506-047
Figure 1 Ultrasonic Wind Sensor WS425 F/G
Wind measurement and wind data is important in meteorology,
aviation, transport safety, in ships and harbors, and also in many
industrial applications. Vaisala manufactures wind sensors for all these
needs, from low cost combined units to sophisticated totally heated
sensors for extreme weather conditions. For more information, please
contact your Vaisala representative or visit www.vaisala.com.
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Chapter 2 __________________________________________________________ Product Overview
Ultrasonic Wind Sensor WS425 F/G
Components
0506-067
Figure 2 Components Overview
The following numbers refer to Figure 2 on page 17:
1 = Wind sensor
2 = Power supply
3 = Module assembly, power supply
4 = Fiber optic modem (FOM) assembly
The device consists of the following field replaceable units (FRU):
- Wind sensor, model WS425 F/G (item 1 in Figure 2 on page 17)
- Power supply,WS425PowerUS or WS425PowerEU (item 2)
- Module assembly, power supply (item 3)
- Fiber optic modem assembly (item 4)
- Cable assembly, sensor WS425 F/G (Figure 6 on page 21)
The FRUs are represented individually in Figures 3-6.
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0506-010
Figure 3 Schematic of Ultrasonic Wind Sensor WS425 F/G
The following numbers refer to Figure 3 on page 18:
1 = Sensor body
2=Bird spike
3 = Transducer (3 pcs)
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Chapter 2 __________________________________________________________ Product Overview
0506-011
Figure 4 Ultrasonic Wind Sensor Power Supply
NOTE
Figure 4 on page 19 represents the WS425PowerUS power supply
made for 115 VAC - the European model WS425PowerEU has
different primary (internal) wiring and is made for 240 VAC. The
customer must check local regulations concerning the correct and safe
wiring of the power supply.
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0506-012
Figure 5 Power Supply and FOM Module Assembly
The following numbers refer to Figure 5 on page 20:
1 = Fiber optic connector TX
2 = Fiber optic connector RX
3 = 12-position terminal block (TB2, see also Figure 11 on page
30 and Table 2 on page 31)
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Chapter 2 __________________________________________________________ Product Overview
0506-014
Figure 6 Cable Assembly, Sensor
The sensor interface cable assembly is 11.2 m in length. The 12 ring
lugs (indicated by the arrow in Figure 6 on page 21) of the sensor
interface cable are each numbered 1-12. Connect them to the
correspondingly numbered terminal positions in the power supply
assembly terminal block 2; see Figure 5 on page 20, Figure 11 on page
30 and Table 2 on page 31.
Accessories
Ultrasonic Wind Sensor WS425 F/G also has the following optional
accessories:
- Fiber optic modem, FOM111
1
3
2
0506-055
Figure 7 Fiber Optic Modem FOM111
The following numbers refer to Figure 7 on page 21:
1 = Fiber optic connectors
2 = RS-232 connector for PC cable
3 = Screw wire terminals for operating voltage
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When using the fiber optic connection between the Ultrasonic Wind
sensor and a personal computer, two fiber optic modems are needed.
One is supplied as standard with the Ultrasonic Wind sensor enclosed
in the power supply module housing. The other is available from
Vaisala as an optional accessory. Please note that FOM111 is supplied
without a housing. If needed, the customer must source a proper
housing locally.
The fiber optic cable is connected to the connectors of the fiber optic
modem located in the power supply module assembly and at the other
end to the connectors of the optional FOM111 fiber optic modem. The
FOM111 in turn is connected to the host system personal computer/data
logger via an RS-232 cable. Note that the RS-232 cable between the PC/
data logger and the fiber optic modem is different than the one used
between the PC and the TEST connector in the power supply module
(see Figure 5 on page 20).
A DC power supply for the fiber optic modem is also required. See
Connecting Fiber Optic Cable on page 28 and Connecting Fiber Optic
Modem FOM111 on page 28 for further instructions on how to make the
fiber optic connections.
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Chapter 3 _______________________________________________________________ Installation
CHAPTER 3
INSTALLATION
This chapter provides you with information on the installation and
alignment procedures, and connections of the power supply and fiber
optic modem.
Required Tools
- 3-millimeter Allen wrench
- 9/16-inch crescent wrench (2 each)
- Flat blade screwdriver for #6 screw
- Phillips screwdriver for ¼-inch x 20 flathead screw
- Electrical tape
- Verifier
- Laptop with a Diagnostics Program
- RS-232 cable
- Tape measure
NOTE
Packaging materials
The WS425 F/G sensors and power supplies are shipped in cardboard
containers with custom foam pieces to support these items during the
shipment. It is very important to keep all the original packing materials
in case the items need to be returned for repair service in the future.
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User's Guide ______________________________________________________________________
0506-015
Figure 8 WS425 F/G Tower Assembly
The following numbers refer to Figure 8 on page 24:
1 = WS425 F/G
2 = Cable assembly
3 = Adapter for F/G models
4 = Mounting tube
5 = Lightning rod (not provided by Vaisala)
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Chapter 3 _______________________________________________________________ Installation
Installation of Mounting Arm and Sensor Cable
1. Tilt the tower to a horizontal position.
2. Remove the mounting tube from the shipping container.
3. Find the end of the mounting tube with the two cross holes.
4. Insert this end of the mounting tube on the pole.
5. Rotate the mounting arm in its hole until the two cross-holes in the
pole are aligned with the two cross-holes in the mounting tube.
6. Insert the bolts into the cross-holes and tighten them
7. Remove the adapter from the sensor shipping box and place it over
the mounting tube.
8. Tighten the three set screws of the clamp at the bottom of the
adapter only lightly (these will be tightened during the sensor
alignment procedure).
9. Remove the sensor cable from the shipping box.
10. At the end of the sensor cable with ring lugs, take about half of the
individual wire and fold it back. See Figure 9 on page 25.
11. Feed the cable through the adapter, mounting arm, tower, tower
pivot, and the conduit going to the power supply, starting with the
wrapped end of the cable into the open end of the adapter at the end
of the mounting arm.
0506-016
Figure 9 Sensor Cable Installation
Wrap electrical tape around the wires tightly so that later it can be easily
threaded through the ½" conduit.
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Installation of Wind Sensor
1. Open the sensor shipping box and remove the sensor.
2. Take the wind sensor and connect the cable connector to it. Then
insert the sensor over the end of the adapter. The sensor needs to be
rotated until its alignment pin slides into the slot of the adapter.
Tighten the single set screw that secures the sensor to the adapter.
CAUTION
After removing the sensor from the box, do not impact the three
transducers against hard objects or damage to the sensor might result.
Installation of Power Supply
Installation of Power Supply on Pole
Mast
1. Take the mounting plate out of the mounting kit assembly
container.
2. Take the power supply out of its shipping container.
3. Attach the power supply to the mounting plate with four flathead
screws and four each flat washers, lock washers and ¼-20 nuts
found in the mounting kit assembly container.
4. After these four screws are tightened, mount the entire assembly on
the pole mast, using the four hex-head screws as shown in Figure
10 on page 27. The customer must provide the pole mast and the
pole mast installation plate.
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