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Overview
The 05108-10 Heavy Duty Wind Monitor is a light-weight, sturdy instrument for measuring wind speed and direction in harsh environments. It has important features that greatly extend the service life of this popular sensor, and promise improved survivability for the most severe applications.
Its simplicity and rugged corrosion-resistant construction make it ideal for a wide range of wind measuring applications. Manufactured by R. M. Young, this wind monitor is cabled for use with Campbell Scientific dataloggers.
The 05108-10 now comes with a fixed cable length of 12 m (40 ft). For applications that require longer cable lengths use the R19120 junction box FIN5RMY-L cbale.
Read MoreBenefits and Features
- Addresses the most common concern of bearing replacement, by utilizing extremely long lasting, oversize ceramic bearings. It is anticipated the use of the new ceramic bearing in the 05108-10 will double the recommended service interval to 4 years
- Oversized propeller shaft, high pitch propeller and stainless steel locking propeller nut to enhance long-term reliability of the sensor
- The R. M. Young wind monitor family:
- 05103, standard version
- 05103-45, rugged, alpine version
- 05305, more responsive but less rugged version
- 05106, marine-grade version
This product is available for repair and calibration
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Detailed Description
The 05108-10 is designed to address the most common concern of mechanical wind sensors, bearing replacement. It utilizes extremely long-wearing, oversize ceramic bearings to increase service life many times longer than standard stainless steel bearings. In addition to being more wear-resistant, ceramic is resistant to corrosion in environments that are hostile to steel bearings. The Wind Monitor-HD also has oversized propeller shaft, high pitch propeller and stainless steel locking propeller nut, all features that will enhance long-term reliability of the sensor.
The 05108-10 Wind Monitor is made out of rigid UV-stabilized thermoplastic with stainless steel and anodized aluminum fittings. The thermoplastic material resists corrosion from sea air environments and atmospheric pollutants. It uses stainless-steel precision-grade ball bearings for the propeller shaft and vertical shaft bearings.
The 05108-10 measures wind speed with a helicoid-shaped, four-blade propeller. Rotation of the propeller produces an ac sine wave that has a frequency directly proportional to wind speed. The ac signal is induced in a transducer coil by a six-pole magnet mounted on the propeller shaft. The coil resides on the non-rotating central portion of the main mounting assembly, eliminating the need for slip rings and brushes.
Wind direction is sensed by the orientation of the fuselage-shaped sensor body, which is connected to an internal potentiometer. The datalogger applies a known precision excitation voltage to the potentiometer element. The output is an analog voltage signal directly proportional to the azimuth angle.
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Specifications
- Operating Temperature:
-50° to +50°C, assuming non-riming conditions - Cable length: 12 m (40 ft)
- Overall Height:
37 cm (14.6 in.) - Overall Length:
55 cm (21.7 in.) - Main Housing Diameter:
5 cm (2.0 in.) - Propeller Diameter:
18 cm (7.1 in.) - Mounting Pipe Description:
34 mm (1.34 in.) OD; standard 1.0-in. IPS schedule 40 - Weight: 1.0 kg (2.2 lb)
Wind Speed
- Range:
0 to 100 m/s (0 to 224 mph) - Accuracy:
±0.3 m/s (0.6 mph) or 1% of reading - Starting Threshold:
1.0 m/s (2.2 mph) - Distance Constant (63% recovery): 2.7 m (8.9 ft)
- Output:
ac voltage (three pulses per revolution);
90 Hz (1800 rpm) = 8.8 m/s (19.7 mph)
Wind Direction
- Range:
Mechanical: 0 to 360°
Electrical: 355° (5° open) - Accuracy: ±3°
- Starting Threshold at 10° Displacement:
1.0 m/s (2.2 mph) - Damping Ratio: 0.3
- Damped Natural Wavelength:
7.4 m (24.3 ft) - Undamped Natural Wavelength:
7.2 m (23.6 ft) - Output: analog dc voltage from potentiometer—resistance 10kohms; linearity 0.25%; life expectancy 50 million revolutions
- Power switched excitation voltage supplied by datalogger
Compatibility
Mounting
The Wind Monitors can be attached to a 019WM, 019WMTOW, CM202, CM204, or CM206 crossarm via a L17953 NU-RAIL fitting or CM220 Right Angle Mounting Bracket. Alternatively, the Wind Monitors can be attached to the top of our stainless-steel tripods via the CM216 Sensor Mounting Kit.
Wind Profile Studies
Wind profile studies measure many wind sensors. For these applications, the LLAC4 4-Channel Low Level AC Conversion Module can be used to increase the number of Wind Monitors measured by one datalogger. The LLAC4 allows datalogger control ports to read the wind speed sensor’s ac signals instead of using pulse channels. Dataloggers compatible with the LLAC4 are the CR200(X) series (ac signal ≤1 kHz only), CR800, CR850, CR1000, CR3000, and CR5000.
Datalogger Considerations
The 05108's propeller uses one pulse count channel on the datalogger. Its wind vane requires one single-ended channel and access to an excitation channel (the excitation channel can be shared with other high impedance sensors).
Programming
The 05108-10's propeller is measured by the PulseCount Instruction in CRBasic and by Instruction 3 (Pulse Count) in Edlog. The wind vane is measured by the BrHalf Instruction in CRBasic and by Instruction 4 (Excite-Delay-SE) in Edlog. The measurements are typically processed for output with the Wind Vector instruction (not present in the CR500 or CR9000 but is present in the CR9000X).
Compatible Contemporary Dataloggers
| CR200(X) Series | CR800/CR850 | CR1000 | CR3000 | CR5000 | CR7X | CR9000X |
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Compatible Retired Dataloggers
| CR500 | CR510 | CR10 | CR10X | 21X | CR23X | CR9000 |
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*Measurements are typically processed for output with the Wind Vector instruction, which is not present in the CR500 or CR9000.