Wind Direction, Heavy-Duty

Wind Direction Sensor; heavy duty design with CNC-manufactured metal housing (seawater resistant aluminium alloy Al Mg Si 1, black anodized). Special rugged design with improved dynamic features basing on high precision bearings and optimised balancing.

This sensor is designed for the acquisition and electronic transmission of wind direction data. It is suitable for applications in the field of meteorology and environmental monitoring, e. g. for automatic weather stations, at airports, on research vessels, at industrial sites, for mobile measuring systems etc..

The instrument’s rugged construction and its dust- and water repellent surface, as well as the optional high performance heating enable heavy duty applications like wind energy measurement or operation under severe climatic conditions.

Thanks to various simultaneously usable outputs and further options there is a wide range of measuring tasks (refer to “Variations”).

When moving the wind vane, the wheel of the angular encoder is turned so that, depending on the wind direction, a corresponding digital signal is supplied. The subsequent electronic circuitry converts this signal to a serial output, resp. to additional analog signals (refer to "Technical Specifications"). The serial data output (TTL) corresponds an RS 232 structure, with 600 Bd, 8 bit, 1 start bit, 2 stop bit, no parity bit.

Technical Specification

Variations

Measuring range: 360°
Threshold at 90° initial deflection: < 0.2 m/s
Dampingratio at v = 3 m/s and initial deflection = 15°: < 0.3
Compliances: WMO Guide No. 8/7th ed.
VDI 8786, T.2, 12/2000
MEASNET
Power supply: Type 4123.0000:
10…30 VDC; < 5 mA at 12 V
Type 4123.1000:
10…30 VDC; 35…75 mA at 12 V
Output: digital: serial 8 bit Gray code, RS 232 compatible, 600Bd, 8 data bit, 1 startbit, 2 stopbit, no parity, TTL level
analog: 0...20 mA, 4...20 mA and 3 phase signal for direct con-nection of analog instruments
Admissible load: approx. 400 Ohm
Heating system: Thermostat controlled, max. 7 W
High perf. heating: max. 60 W
Operating temperature: -25...+80 °C
-40…+80 °C with high per-formance heating
Ausgangssignal: digital, 8 Bit Gray Code als serielles Datenwort, RS232 kompatibel
zusätzl. bei Version 4123.1000: analog
0...20 mA
4...20 mA
3-Phasensignal zum Direktanschluss an Analoginstrumente
zul. Bürde: ca. 400 Ω
Abmessungen: 370 mm hoch, Drehradius der Fahne ca. 350 mm
Gewicht: ca. 1,015 kg
Befestigung: Zapfen ∅34 x 40 mm
Anschluss: Steckverbindung, Metall, Schutzart IP 67
Protection class: IP 65, when operated upright
Housing material: Aluminium alloy
Connection: 12 p. connector, water- and dust proof acc. to IP 67

note 4123.0000Sensor for wind direction with serial data output, 8 bit Gray Code, TTL, with built-in heating
note 4123.1000Sensor for wind direction with serial data output and build in heating, 8 bit Gray Code, TTL, Analog output 0...20 mA, 4...20 mA incl. 3-phase signal; suitable for analog instruments
note 4123.01004123.0000, with high performance heating
note 4123.11004123.1000, with high performance heating

4123

Heavy Duty Wind Direction Sensor

4500

Combined Wind Speed and Wind Direction Sensor. We recommend the additional installation of a lightening rod.