Wind direction and anemometer instructions Working principle
1. Wind speed section
The wind speed sensor adopts a traditional three cup rotating frame structure. It linearly transforms wind speed into the rotational speed of the rotating frame.
In order to reduce the starting wind speed, a lightweight wind cup made of special materials is used. The signal is transmitted to the host body for measurement after being detected by sensors through a device fixed on the rotating frame. The measured parameters are directly displayed as numbers on the instrument's LCD display.
2. Wind direction section
The wind direction is supported by the rebound top rod that protects the wind direction dial. The overall structure consists of a wind vane, a wind direction axis, and a wind direction dial. The magnetic rod mounted on the wind direction dial and the wind direction dial form a magnetic compass to determine the direction of the wind. When the locking knob is pulled down and rotated to the right for positioning, the rebound top rod lowers the wind direction dial, bringing the tapered gemstone bearing into contact with the shaft tip. The wind direction indication is determined by the stable position of the wind direction pointer on the wind direction dial. When the locking knob is turned and rebounded upwards to reset, the rebound rod lifts the wind direction dial up and positions it on the upper part of the instrument, and separates the tapered gemstone bearing from the shaft tip to protect the wind direction dial and bearing from damage to the shaft tip. (Note: This status must be promptly replied to after the instrument is used up)
Instructions and Instructions for Use
1. Wind speed measurement section
Unscrew the lower end cover of the handle (battery compartment), take out the internal battery holder, install three AAA7 batteries in the direction indicated on the battery holder, and then install the battery holder in the battery compartment. When installing the battery holder, pay attention to the positive pole facing inward (press the power switch when the battery holder is installed upside down, and the instrument will not display). Turn on the battery compartment cover, press the bottom power switch, and the instrument will initialize and display "16025". Then, the wind speed and wind level data will be displayed. When measuring wind speed and wind level, the instrument will display two digits of wind level data on the left side (unit: level), and three digits of wind speed data on the right side (unit: meter/second). The wind level display accuracy is level, and the wind speed display accuracy is level.
2. Wind direction measurement section
1) Before observation, it is necessary to check whether the wind direction part is vertically and firmly connected to the rebound top rod of the anemometer wind cup, and when pulling down the locking knob and rotating it to the right for positioning, the rebound top rod will lower the wind direction dial, so that the tapered gemstone bearing is in contact with the shaft tip.
2) When observing, the azimuth reading should be taken when the wind direction indicator is stable.
3) After the observation is completed, in order to protect the shaft tip and the tapered gemstone bearing, the locking knob should be turned in a timely manner and rebounded upwards to reset, so that the rebound rod can lift the wind direction dial and position it on the upper part of the instrument, and separate the tapered gemstone bearing from the shaft tip.
