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First Class Wind Speed Sensor
Mechanical cup anemometer

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Links to previous pages
+ UK Met Index      

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

 

 

 

 

 

 

 

 The First Class wind speed sensor is a mechanical cup anemometer designed for the measurement of the horizontal component of the wind speed for meteorological applications, environmental measuring technology, site evaluation and the measurement of capacity characteristics of wind power systems.

The sensor meets all the requirements of IEC 61400.121-CD for a first class instrument and has defined and optimised, dynamic behaviour even in high turbulence intensities as well as minimal over-speeding and a low starting value.

The data is output as a digital signal and can be transmitted to recording instruments, computers, data loggers, process control systems and displays. If you are interested in a display please see the digital wind speed indicator 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.

There are two versions available unheated and heated:

  • Heated - First Class wind speed sensor, model number 4.3350.00.000
  • Unheated - First Class wind speed sensor, model number 4.3350.10.000


If you need to measure wind direction as well as wind speed see also:
First Class wind speed AND direction system

 

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 First Class wind speed sensor.jpg

 

Features

  • extremely wide wind speed measurement range
  • best accuracy of any cup sensor
  • very quick response
  • aluminium construction for durability
  • available in heated and unheated versions

 

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What it does

The First Class wind speed sensor has 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 data is output in the form of a rectangular Hz signal (example 1000 Hz at 50 m/s (112 mph)).

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Specifications for First Class Wind Speed Sensors

Wind speed range 0.3 - 75 m/s (0.6 - 167 mph)
Accuracy % of measuring value < 3% up to 50 m/s (112 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 (112 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 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

Accessories

The following two digital wind speed indicators are available as an accessory with the First Class sensors :

1. digital wind speed display model 4.1044.00.000

for switch panel mounting

2. digital wind speed display model 4.1045.00.000

for switch panel mounting with 2 adjustable limit contacts

 

Specifications for Digital Wind Speed Displays

Electrical input: 0...834 Hz
Display range 0 ... 40 m/s (134 mph)
Resolution +/- 1 digit
Display LED, red, 13 mm high
Operating voltage: 230 V / 50 Hz
IP rating 20
Size 96 mm x 48 mm x 104 mm
Weight 0.3 Kgs

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

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Delivery

This unit is 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
              - 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

  

 

How to select the right model?

Don't have time to compare sensors and would like us to do the work for you 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/firstclass.htm

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