Ambient Meteorological · Wind
Aerovane Wind Transmitter Model 120
The Aerovane® Wind Transmitter is a precision instrument for measuring the speed and direction of wind. Wind speed is sensed by a 3-bladed impeller which is mounted to the shaft of a DC generator; the output of which is linear with respect to wind speed. Wind direction is sensed by the large rudder of the fuselage, which is connected to a torque-synchro transmitter contained in the vane shaft housing.
The rear rudder section of the fuselage is made of a fiberglass reinforced polyester and the impeller is made of high-impact phenolic composite. The center-section of the fuselage and the vane shaft housing are aluminum castings.
The upper and lower sections of the vane shaft housing separate at the flanges, allowing the transmitter to retain its alignment to a reference direction after removal and re-installation.
The lower section of the vane shaft housing is sized for mounting the transmitter into a 1.37″ (3.48 cm.) diameter hole.
The transmitter is capable of driving two Model 135 or up to five Model 136 indicators. The distance by which the transmitter and indicator can be separated in an Aerovane® system is governed by the amount of wind speed error that is acceptable to the user. The table shows how the error corresponds to various conductor gages and cable lengths.
The Aerovane® Transmitters are available with thermostatically controlled heaters to prevent freezing during icing conditions to temperatures of 14° F (-10° C).
The Aerovane® Transmitter 122 measures wind speed only and does not require external power.
Also available is the Model 123 Transmitter, which measures both wind speed and direction. This model uses a linear potentiometer to measure direction. The 123 can be used with Transmuter Systems and most Data Loggers.
| Awg. No. | Feet | Meter |
|---|---|---|
| 14 | 2726 | 831 |
| 18 | 1079 | 328 |
Options
- Potentiometric Direction Output (model 123)
- Available with Wind Speed Only (model 122)
- Crosswind-headwind Vector Output (model 5-122A)
Product Specifications
| Range | 0-140 mph (0-62.6 m/s) |
|---|---|
| Accuracy | ± 1 mph (0-100 mph) ±0.45m/s (0-44.7m/s) |
| Starting Threshold | 2.0 mph (unheated) (0.9 M/S) 2.6 mph (heated) (1.2 m/s) |
| Distance Constant | 15 ft. (4.6m) |
| Output | Linear voltage (10.56 VDC @ 100 mph) |
| Accuracy | 0-360° ± 2° |
| Delay Distance | 34 ft. (10.4 m) |
| Output | 115 V, 60 Hz. Synchro signal (optional potentiometric output) |
| Power Requirements | 115V, 60 Hz, single-phase |
| Size | 32″ L x 29 5/8″ H (82.5 x 75 cm.) |
| Rotor | 15″ (39.4 cm.) Dia. |
| Weight | 13 lbs. (5.9 kg.) |
| Shipping Weight | 22lbs. (10kg) |
Ordering Information
| MODEL | DESCRIPTION | PART NO. |
|---|---|---|
| 120 | Wind Speed and Direction Transmitter | 11865-1 |
| 120HD | Same as 120 With Heaters | 11865-2 |
| 122 | Transmitter(Wind Speed Only) | 11865-6 |
| 123 | Same as 120, with linear potentiometer for direction | 18151-1 |
| 123HD | Same as 123, with heater | 18151-2 |
| 5-122A | Aerovane® Wind Vector transmitter (6-blade rotor) | 15478-2 |
| 5-122AHD | Aerovane® Wind Vector Transmitter (Heated) | 15478-1 |
| ———— | Cable, 7 Conductor, 18 gage. Not included with Aerovane.Ā® | 20254 |
| ———— | Spare rotor assembly (3 blades). | 512482-5 |
| ———— | Special mast adapter with 1 ” pipe thread termination. | 515333-1 |
Specifications are subject to change. Contact Belfort Instrument to confirm current specifications.
Related Wind products
Wind
010C Wind Speed Sensor
The 010C and 020C are made of stainless steel and anodized aluminum components and are functionally more reli…
Wind
014A Wind Speed Sensor
The 014A Wind Speed Sensor and 024A Wind Direction Sensor are accurate, durable and economical instruments, s…
Wind
034B Wind Sensor
The 034B Wind Sensor combines wind speed and direction measurements in a single sensing unit. It installs in…
Wind
50.5 Solid State Wind Sensor
50.5 Solid State Wind Sensor from Belfort Instrument. No moving parts. Digital and analog outputs. 16-point w…
Need pricing or a recommendation?
Our engineers respond to quote requests quickly. Call (410) 342-2626.