Wind Direction 3590/3590EX (averaging) A sensor for measuring average wind direction in a sampling interval. It is designed to be used with Aanderaa Sensor Scanning Units, Dataloggers or Display units. This sensor consists of a light wind vane pivoted on top of a housing. Inside the housing a compass is magnetically coupled to the vane. The sensor can be mounted directly on the Sensor Arm of the Automatic Weather Station 2700, Data Bouy 4700, or on different types of sensor brackets from Aanderaa and on a 25 mm O.D. vertical aluminum tube. When installed on brackets or tubes, the sensor must then be connected to the SmartGuard datalogger or Display Unit by a separate cable. When direction is to be read, the compass will read out the average reading since the last reading was taken. The compass consists of a sensing element mounted on an electronic card. In the sensing element is a follower magnet which follows the magnet on the wind vane. Four Hall elements measure the direction every second and a micro controller on the electronic card calculates the average direction in the measuring period. The housing is furnished with an N mark that must be orien­ tated towards North or to a reference point like a ships center-line for an ordinary degrees indication. When properly orien­ tated this sensor will cause the datalogging system to give a raw data reading of 0, 256, 512 and 768 for wind blowing from the North, East, South and West respectively. A non-averaging version designated 3590B is also available. This sensor will only give a momentary value every time the sensor is read. To avoid galvanic corrosion do not fasten the sensor to other metals than aluminum.

Range: Threshold Speed: Accuracy: Wind Vane (complete) 2953 Retaining and sealing screw Damping fluid Silicon oil MS 200 (60.000 cts) 260017 Magnet Shaft 965044 Housing w/ shaft 2829 Compass 3278 Silica Gel Bag O-ring R3281,865005 M8 set screw O-ring,863002 Orientation hole Ø25.5 mm Ø80 mm PIN CONFIGURATION Receptacle, exterior view; pin = 3 - 9volt Control voltage System ground ; bushing = Bridge voltage 0 to 360 degrees Magnetic Less than 0.3m/s Better than ±5 degrees Magnetic Output Signal: Aanderaa SR10 Damping Ratio: 0.7 Operating Temperature: – 40 to +65°C Current Consumption: 200µA Operating...