Vaisala WAV151 User Manual Download Page 28

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User's Guide ________________________________________________________

26 _____________________________________________________ M210294en-A

Property

Description/Value

Housing material

AlMgSi, gray anodized

Vane material

AlSi 12, anodized

Dimensions

300 (h) × 90 (Ø) mm
Swept radius of vane: 172 mm

Weight

660 g

Table 6

Output from Connector Pins C to H

(º)

Output
CDEFGH

(º)

Output
CDEFGH

(º)

Output
CDEFGH

(º)

Output
CDEFGH

000000

011000

180 110000

W 270 101000

000001

011001

186 110001

276 101001

000011

101 011011

191 110011

281 101011

000010

107 011010

197 110010

287 101010

000110

113 011110

203 110110

293 101110

000111

118 011111

208 110111

298 101111

000101

124 011101

214 110101

304 101101

000100

129 011100

219 110100

309 101100

001100

135 010100

225 111100

315 100100

001101

141 010101

231 111101

321 100101

001111

146 010111

236 111111

326 100111

001110

152 010110

242 111110

332 100110

001010

158 010010

248 111010

338 100010

001011

163 010011

253 111011

343 100011

001001

169 010001

259 111001

349 100001

001000

174 010000

264 111000

354 100000

MTBF

According to the standard MIL-HDBK-217F calculated
mean times between failures are listed in Table 7 below.
Actually, the last column provides the failure frequency
during 10

hours of use.

Table 7

MTBF Values

Abbreviation

Installation

f/10

Permanent installations

2.87

Mobile installations

7.02

Ship equipments

13.15

Summary of Contents for WAV151

Page 1: ...USER S GUIDE Wind Vane WAV151 M210294en A ...

Page 2: ...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...

Page 3: ...ls 4 Safety 4 General Safety Considerations 4 Product Related Safety Precautions 5 ESD Protection 5 Regulatory Compliances 6 Warranty 6 CHAPTER 2 PRODUCT OVERVIEW 7 Introduction to WAV151 Wind Vane 7 CHAPTER 3 INSTALLATION 9 Selecting Location 9 Installation Procedure 10 Mounting 10 Alignment 12 Verification 12 Connector 12 CHAPTER 4 MAINTENANCE 15 Periodic Maintenance 15 Cleaning 15 Testing Prope...

Page 4: ...igures Figure 1 WAV151 Wind Vane 8 Figure 2 Recommended Mast Location in Open Area 9 Figure 3 Recommended Mast Length on the Top of Building 10 Figure 4 Mounting of Wind Sensor 11 Figure 5 WAV151 Connector 12 Figure 6 WAV151 Assembly 19 List of Tables Table 1 Manual Revisions 4 Table 2 Related Manuals 4 Table 3 Available Spare Parts 20 Table 4 Some Common Problems and their Remedies 21 Table 5 WAV...

Page 5: ...nformation provides important safety revision history and warranty information for the product Chapter 2 Product Overview introduces the WAV151 Wind Vane features and advantages 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 WAV151 Wind Vane Chapter 5 Tr...

Page 6: ...10293en WAA151 Anemometer 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 and follow instru...

Page 7: ...charge 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 comp...

Page 8: ...ld damping ratio overshoot ratio and delay distance refer to technical data 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 exception...

Page 9: ...red LEDs and phototransistors are mounted on six orbits on each side of a 6 bit GRAY coded disc Rotated by the vane the disc creates changes in the code received by the phototransistors The code is changed in steps of 5 6 one bit at a time to eliminate any ambiguities in the coding A heating element in the shaft tunnel keeps the temperature of the bearings above the freezing level in cold climates...

Page 10: ...______________________________________ 8 ______________________________________________________ M210294en A 0204 044 Figure 1 WAV151 Wind Vane The following numbers refer to Figure 1 above 1 Vane assembly 2 Sensor shaft 3 Lower body ...

Page 11: ...APTER 3 INSTALLATION This chapter provides you with information that is intended to help you install this product Selecting Location Allow sufficient clearance for the wind sensors Wind sensors should not be located next to a building or any other object that might affect the flow of air 0204 040 Figure 2 Recommended Mast Location in Open Area ...

Page 12: ... mast and obstacles is ten times the height of an obstacle Refer to Figure 2 on page 9 0204 041 Figure 3 Recommended Mast Length on the Top of Building The recommended minimum length marked with the letter h in Figure 3 above for the mast that is installed on the top of a building is 1 5 times the height of the building H When the diagonal W is less than the height H the minimum length of the mast...

Page 13: ...plug through the mounting flange at the end of the cross arm then connect it to the sensor See Figure 4 below 3 The sensor fits to the cross arm in one position only Face the product label north and mount the sensor to the flange by twisting Note that the plastic washers 1 should be inserted between the flange and the sensor See Figure 4 below 4 Finally tighten the screws 2 with an Allen key 3 See...

Page 14: ...one position only to the flange Verification If your sensor is connected to the data collection system and powered up check that the directional readings are correct by holding the vane in a few fixed angles and verifying data Connector The connector for the WAV151 Wind Vane is shown in Figure 5 below The heating element in the shaft tunnel is connected between pins J and K You can supply the heat...

Page 15: ..._____________________________________13 The following letters refer to Figure 5 on page 12 A D power input from 9 5 to 15 5 VDC B GND common ground C G5 signal output D G4 signal output E G3 signal output F G2 signal output G G1 signal output H G0 signal output J HTNG 20 VDC or VAC K HTNG 20 VDC or VAC ...

Page 16: ...User s Guide ________________________________________________________ 14 _____________________________________________________ M210294en A This page intentionally left blank ...

Page 17: ...plets or ice will deteriorate the accuracy of the wind vane Clean the vane when necessary Testing Proper Operation The sensor will hold its accuracy in all conditions for 1 year If the rains are mostly casual and moderate and the atmospheric corrosion is typical the sensor accuracy will remain for 2 years However the ball bearings must be checked once a year and the sensor shaft rotated manually T...

Page 18: ... has been treated with sealant Do not remove the fixing screw to ensure perfect sealing 2 Loosen the hex nut of the connector with a 27 mm tool CAUTION Be careful not to bend the connector pins 3 Loosen the three pan head screws at the bottom of the sensor body with a 7 mm tool 4 Remove the lower body assembly by pulling it straight outwards 5 Loosen the spacer screws with a 7 mm tool and disconne...

Page 19: ...s Do not drop them or force them onto the shaft 2 Attach the code disc 7 back onto the shaft The disc has to be positioned so that it does not touch the opto coupler on the printed circuit board 6 Tighten the fixing screw of the code disc CAUTION Assure that the code disc does not touch the opto coupler 3 Attach the heating element outlet to the printed circuit board Put the printed circuit board ...

Page 20: ...he sensor body on the crossarm with three screws 7 Mount the vane assembly onto the sensor body Tighten the screw CAUTION The heating resistance element cannot be removed without special tools To avoid any damages it is recommended that replacement of the heating element be carried out by the manufacturer The following numbers refer to Figure 6 on page 19 1 Vane assembly 2 Hex nut of the connector...

Page 21: ...Chapter 4 ________________________________________________ Maintenance VAISALA__________________________________________________________19 0204 045 Figure 6 WAV151 Assembly ...

Page 22: ...unter balanced at the factory but can be readjusted if necessary To do this loosen the vane assembly and place it on its side on the table A correctly balanced vane will stay in horizontal position Parts List for Consumables Table 3 Available Spare Parts Spare Part Order Code Vane assembly wind tail 6389WA Set of bearings and gasket 16644WA Sensor board PCB 1434WA ...

Page 23: ...m Probable Cause Remedy The sensor is mechanically damaged Check the cables and connectors After removing the connector s hexagon nut the connector is bent which breaks the connection wires Check the connector The sensor is not powered properly Check that the supply voltage is from 9 5 to15 5 VDC The data is not received from the sensor Some Vaisala products for example WAT12 switch power on to th...

Page 24: ...e printed circuit board Refer to the instructions given in section Replacing Consumables on page 16 for details The output from the connector pins C to H do not have the right code or are not at the proper level Current consumption is either less than 17 mA or more than 25 mA when the shaft is rotated mechanically The printed circuit board is damaged Replace the printed circuit board Refer to the ...

Page 25: ...nment When did it fail date immediately after a while periodically randomly How many failed only one defect other same or similar defects several failures in one unit What was connected to the product and to which connectors Input power source type voltage and list of other items lighting heaters motors etc that were connected to the same power output What was done when the failure was noticed 4 I...

Page 26: ...User s Guide ________________________________________________________ 24 _____________________________________________________ M210294en A This page intentionally left blank ...

Page 27: ... 0 360 Starting threshold 0 4 m s Resolution 5 6 Damping Ratio 0 19 Overshoot Ratio 0 55 Delay Distance 0 4 m Accuracy Better than 3 Output 6 bit parallel GRAY code Transducer output level Iout 5 mA Iout 5 mA High state Uin 1 5 V Low state 1 5 V Settling time after power turn on 100 µs Operating power supply 9 5 15 5 VDC 20 mA typical Heating power supply 20 VDC or VAC 500 mA typical Electrical co...

Page 28: ... 293 101110 28 000111 118 011111 208 110111 298 101111 34 000101 124 011101 214 110101 304 101101 39 000100 129 011100 219 110100 309 101100 45 001100 135 010100 225 111100 315 100100 51 001101 141 010101 231 111101 321 100101 56 001111 146 010111 236 111111 326 100111 62 001110 152 010110 242 111110 332 100110 68 001010 158 010010 248 111010 338 100010 73 001011 163 010011 253 111011 343 100011 7...

Page 29: ...Chapter 6 _______________________________________________Technical Data VAISALA__________________________________________________________27 MTTR Mean time to repair is 0 3 h ...

Page 30: ...www vaisala com M210294EN ...

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