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First Class Wind Speed and Direction System
High specification mechanical cup and vane anemometer


Links to previous pages    

Wind Section
  + wind FIND
     + wind type
        + wind mechanical
           + wind speed+direction
              -
YOU ARE HERE

             


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Tel UK:  01275 847787
Tel Intl: + 44 1275 847787

Fax UK:  01275 847303
Fax Intl: + 44 1275 847303

Send an e-mail to us  

 

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Links to previous pages
+ UK Met Index
  

Wind Section
  + wind FIND
     + wind type
        + wind mechanical
           + wind speed+direction
              -
YOU ARE HERE

             

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Links to previous pages
+ UK Met Index
  

Wind Section
  + wind FIND
     + wind type
        + wind mechanical
           + wind speed+direction
              -
YOU ARE HERE

             

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Links to previous pages
+ UK Met Index
  

Wind Section
  + wind FIND
     + wind type
        + wind mechanical
           + wind speed+direction
              -
YOU ARE HERE

             

 

 

First Class wind speed and direction system includes:

This First Class wind speed and direction system is designed for the measurement of the horizontal component of the wind speed for meteorological applications, site evaluation and the measurement of capacity characteristics of wind power systems.

The system includes high specification mechanical cup and vane anemometers which can be mounted on an appropriate traverse / bracket for use on masts and  weather stations etc.

The system has defined and optimised, dynamic behaviour even in high turbulence intensities as well as minimal over-speeding and a low starting speed.

The data is output as digital signals and can be recorded using a PC or Thies data logger. If you are interested in a display please see refer to the digital wind speed and wind direction displays listed under accessories below.

For winter operation the instrument is equipped with electronically regulated heating which guarantees smooth running of the ball bearings and prevents the moving parts from icing-up


Unheated  System
First Class wind SPEED sensor, model number 4.3350.10.000
First Class wind DIRECTION sensor, model number 4.3150.10.000

Heated System
First Class wind SPEED sensor,  model number 4.3350.00.000
First Class wind DIRECTION sensor,  model number 4.3150.00.000


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First Class wind speed sensor.jpg

 

First Class wind direction sensor.jpg

 

 

 

 


Features

  • extremely wide wind speed measurement range
  • best accuracy of any cup and vane system
  • excellent response in turbulent flows, low starting speeds and over speeding wind situations
  • aluminium construction for durability
  • available in heated and unheated versions

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What it does

The First Class wind speed and direction system has a sensitive wind direction vane and 3 rotating cups that move around a high quality bearing system providing a set amount of rotations for each wind speed. The amount of rotations are directly proportional to wind speed and this allows this sensor to be integrated into a wide variety of stations or logging systems.

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Examples of data output

The wind speed data is output in the form of a rectangular Hz signal (example 1000 Hz at 112 mph).

The wind direction data is output as a digital signal with values between 0-360º.

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Specifications for First Class Wind SPEED Sensors

model 4.3350.10.000 unheated and 4.3350.00.000 heated

Wind speed range 0.3 - 75 m/s (0.6 - 167 mph)
Accuracy % of measuring value < 3% up to 50 m/s (111 mph)
< 6% up to 75 m/s (167 mph)
Linearity r > 0.999 95
Inclined flow -  mean deviation from the cosinus line 1 % (in the range +/- 20o)
Turbulence effect <1% (up to 30% turbulence intensity)
Electrical output 1000 Hz at 50 m/s (111 mph)
Load maximum 85 m/s (190 mph)
Delay distance < 3 m
Operating voltage:       
              electronics 3.3 ... 42 VDC
              heating 24 VAC/DC; 25W
Ambient temperature -50 - + 80ºC
Electrical connection 8 pole plug connection
Mounting onto mast tuber R 1"
Fixing boring Ø 35 x 25 mm
IP rating IP 55
Size 290 mm x 240 mm
Weight 0.5 Kgs
Materials:   
              cup star carbon-fibre-reinforced plastic
              housing aluminium, anodised

This range is in continuous development therefore
specifications may change without prior notice. E&OE

 

Specifications for First Class Wind DIRECTION Sensors

model 4.3150.10.000 unheated and 4.3150.00.000 heated

Wind direction range 0 - 360º
Accuracy 1.5º
Electrical output digital, 9-bit Thies serial synchronous
Resolution
Operating voltage:     
              electronics 3.3 ... 42 VDC
              heating 24 VAC/DC; 25W
Ambient temperature -50 - + 80ºC
Starting value 0.5 m/s at 10º (acc to ASTM D5366-96)
Damping coefficient >/-0.4
Electrical connection 8 pole plug connection
Mounting onto mast tuber R 1"
Fixing boring Ø 35 x 25 mm
IP rating IP 55
Size 390 mm x 240 mm
Weight 0.5 Kgs
Materials: aluminium, anodised

This range is in continuous development therefore
specifications may change without prior notice E&OE

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Accessories


Available as accessories with the First Class series cup and vane anemometers are the following digital wind speed and direction displays. Additionally mounting adapters and cabling are available on request.

 

1. Digital wind speed and direction display model 4.3250.xx.000

Using a RS422 interface to connect to the wind speed and direction sensors the displays indicate the wind direction in a circle of 72 LED luminous bars and the speed by 7 segment LEDs.

a) The model 4.3250.xx.000 provides

the minimum and maximum wind speed values can be indicated by two other digit displays.

Display options of the Wind Speed:

  • instantaneous value or
  • 2 min mean value and maximum value or
  • 10 min mean value and maximum value

Display options of the Wind Direction:

  • instantaneous value or
  • 2 min mean value and variation or
  • 10 min mean value and variation

The calculation of the mean values and maximum values is carried out in accordance to the ICAO standards. These displays together with the First Class sensors are suitable for airfield use.

 

2. Digital wind speed and direction display models 4.3251.xx.000

This model is designed for use on ships. It is similar to the 4.3250.xx.000 above except that it has a direction circle divided in red and green LEDs according to port side and starboard.

b) The model 4.3251.xx.000 provides

Display options of the Wind Speed:

  • instantaneous value

Display options of the Wind Direction:

  • instantaneous value or
  • delayed or
  • instantaneous value and variation or
  • delayed and variation

Display natively provides "relative" wind speed and direction values, however the display has inputs for additional ships information to provide "true" wind speed and direction values.

 

Specifications for both Digital Wind Speed Displays

Operating voltage:   
  4.325x.00.000 230 V / 50 Hz; 24 VAC; 12 V - 35 VDC
  4.325x.01.000 115 V / 50 Hz; 24 VAC; 12 - 35 VDC
Display range   
   wind speed 0 - 99.9 / 0 - 999     m/s / kt /km/h / Beaufort
   wind direction 0 - 360º
Resolution   
   wind speed 0.1 / 1
   wind direction
Wind sensor inputs: serial data telegram via RS 422
Interface RS 422
Data telegram
(ship version only)
LED-standard ultrasonic NMEA 0; NMEA 1
Connection screw terminal
Ambient temperature -10 - + 50ºC
Model switch panel mounting
IP rating 50
Size 144 mm x 144 mm x 135 mm
Weight 1.5 Kgs
EMC EN 60945; EN 61000-6-2; EN 61000-6-3

This range is in continuous development therefore
specifications may change without prior notice. E&OE



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Delivery

These unit are usually dispatched within 4 - 6 weeks ARO
(After Receipt of Order)

After Sales Support

Biral offers free advice and technical support for the lifetime of the instruments we sell. Once you have purchased the unit you can contact us for help on wwwmetsupport@biral.com  


Search web site

 

 

Links to previous pages
+ UK Met Index
  

Wind Section
  + wind FIND
     + wind type
        + wind mechanical
           + wind speed+direction
              -
YOU ARE HERE

             

Tel UK:  01275 847787
Tel Int: + 44 1275 847787

Fax UK:  01275 847303
Fax Int: + 44 1275 847303

Email: wwwmet@biral.com

Not sure if this is the right sensor for you and would like help selecting a sensor?

Please email your requirements to: wwwmet@biral.com

This range is in continuous development therefore specifications may change without prior notice. E&OE

Thank you for visiting www.biral.com/met/wind/firstcombi.htm

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