Measurement and Control Products for WEATHER Measurement and Control Products for WATER Measurement and Control Products for ENERGY Measurement and Control Products for MACHINES Measurement and Control Products for STRUCTURES Measurement and Control Products for EARTH
Reliable, Accurate Wind Measurements
Compatible with most Campbell Scientific dataloggers
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Technical Description

The 034B monitors wind speed using a three-cup anemometer that contains a sealed magnetic reed switch. Rotation of the cup wheel produces a pulse that is directly proportional to wind speed. The frequency of the pulse is measured by the datalogger pulse count channel, then converted to engineering units (mph, m/s, knots).

Wind direction is sensed with a potentiometer. With the precision excitation voltage from the datalogger applied to the potentiometer element, the output signal is an analog voltage that is directly proportional to the azimuth of the wind direction.

034B-L Specifications

  • Operating Temperature:
    -30° to +70°C
  • Weight: 907 g (2 lb)

Wind Speed (Anemometer)

  • Range:
    0 to 50 m/s
    (0 to 110 mph)
  • Accuracy: ±0.11 m/s (0.25 mph) when less than 10.1 m/s
    (22.7 mph) or ±1.1% of true when greater than 10.1 m/s (22.7 mph)
  • Resolution:
    (0.7998 m/s)/(scan rate in sec.) or
    (1.789 mph)/(scan rate in sec.)
  • Starting Threshold:
    0.4 m/s (0.9 mph)
  • Sensor Output: Pulsed contact closure
  • Anemometer Height:
    24.4 cm (9.6 in.)
  • Anemometer Radius:
    10.7 cm (4.2 in.)

Wind Direction (Vane)

  • Range
    Mechanical: 360°
    Electrical: 356° (4° open)
  • Accuracy: ±4°
  • Damping Ratio: 0.25
  • Resolution: 0.5°
  • Potentiometer Resistance:
    0 to 10 kΩ open at crossover
  • Vane Length:
    11.4 cm (4.5 in.)

Resources and Links

Ships With

(1) 1/16" Allen wrench from original manufacturer

(1) Calibration sheet

(1) Wind Vane

(3) Direction hub stickers

(1) 034BCBL-L Sensor cable

Shipping Weights & Dims

Single Box Shipping Weight:
     5.0 lb plus 0.3 lb
        per 10' of cable

     2.3 kg plus 0.14 kg
        per 3.05 m of cable

Single Box Shipping Dimensions:
     14" x 11" x 14"
     35.6 x 27.9 x 35.6 cm