Wind transmitter VMT107A is a small dimensions, digital optoelectronic sensor for wind speed and wind direction mesurements. It is made from naturally anodized aluminium. Quality sealed ball bearings are used for both speed and direction measuring systems.
For wind speed part of the sensor a lightweight three-cup assembly (Robinson's cup) is used which, with a stroboscope disc and optoelectronic elements, gives frequency output proportional to the wind speed.
For the wind direction a square rudder is mounted on the axis of coding disc. In combination with the optoelectronic elements, this gives coded data on 6-bit Grey's coding system.
All electronic elements are protected against overvoltages by resistors and Zener diodes. Normal additional mechanical load (freezing) cannot damage the sensor.
On the bottom of VMT107A there are support for mounting the sensor and 10-pole connector.
Optional output: voltage, current, RS232, RS485 or SDI.
