034B-ET
034B-ET
RetiredWind Set for ET Station
No longer available to order
This product is retained for service, documentation, and compatibility information.
- Model:
- 034B-ET
- Item Number:
- 15798
- Warranty:
- 1 year
Overview
The 034B-ET, manufactured by Met One, combines a three-cup anemometer and vane into a single integrated package to measure wind speed and direction. This wind set is constructed out of lightweight aluminum and is designed for continuous, long-term operation for your applications.
For this version of the 034B Wind Set, the cable terminates in a connector and is the ideal length for attachment to the ET107 or ET106 ETo Weather Station.
Key Advantages
Configured for use wiith Campbell ET stations
Technical Description
The 034B-ET 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 data logger 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 data logger applied to the potentiometer element, the output signal is an analog voltage that is directly proportional to the azimuth of the wind direction.
Specifications
- Operating Temperature
- -30° to +70°C
- Cable Length
- 170.18 cm
(67 in.)
- Weight
- 907 g
(2 lb)
Wind Speed (Anemometer)
- Range
- 0 to 75 m/s
(0 to 167 mph)
- Accuracy < 10.14 m/s (22.7 mph)
- 0.1 m/s
(0.25 mph)
- Accuracy > 10.14 m/s (22.7 mph)
- ±1.1% of true
- Resolution
- (0.7998 m s-1) / (scan rate in seconds) or (1.789 mph) / (scan rate in seconds)
- Starting Threshold
- 0.4 m/s
(0.9 mph)
- Sensor Output
- Pulsed contact closure
- Anemometer Radius
- 10.7 cm
(4.2 in.)
- Anemometer Height
- 24.4 cm
(9.6 in.)
Wind Direction (Vane)
- Mechanical Range
- 360°
- Electrical Range
- 356°
(4° open)
- Accuracy
- ±4°
- Damping Ratio
- 0.25
- Resolution
- < 5°
- Potentiometer Resistance
- 0 to 10 kΩ
(open at crossover)
- Vane Length
- 33.5 cm
(13.2 in.)
Replacement Parts
(4)13764
Replacement Reed Switch for 034B or 034A
The 13764 reed switch is difficult to replace without shattering the reed switch in the installation process. Factory repair is recommended.
Orderable13765
Replacement Wind Vane Tail for 034B or 034A
The 13765 Replacement Wind Vane can be replaced by the user.
Orderable16895
034B or 034A Replacement Calibration Screw or Shoulder Bolt
The 16895 Calibration Screw holds the vane stationary during the calibration process.
Orderable3648
Replacement Bearing for the 034B, 014A, or 034A (two required)
The 3648 bearing is difficult to replace without shattering the adjacent reed switch. Factory replacement is recommended. Two bearings are required.
Orderable
Ships With
(4)- 1/16\" Allen wrench from original manufacturer
- Calibration sheet
- Direction hub stickersQty 3
- Wind Vane
Compatibility
The 034B-ET is a replacement part for the ET107 and ET106.