Item Type: Wind Sensor _x000D_Weight: 1598g / 56.4oz _x000D_Material: ABS, Galvanized, Aluminum_x000D_Widely Used in: Meteorology, Marine, Environment, Airport, Harbor, Laboratory, Industry, Agriculture and Transportation, etc._x000D_Signal Output: RS485_x000D_Cable Length: Approx. 5M / 16.4ft_x000D_Measuring Range Wind Speed: 0-70m/s _x000D_Power Supply: DC 9-30V_x000D_Output Signal Serial port: RS485 (default protocol)_x000D_Accuracy: Wind speed: (0.3 + 0.03V) m / s (V represents the real-time wind speed value)_x000D_Wind Direction: 3 Degree_x000D_Resolution: Wind speed: 0.1m/s, Wind direction: 1 Degree_x000D_Start Up Wind Speed: 0.5m/s_x000D_Maximum Power Consumption: 0.9W_x000D_Load Capacity:_x000D_DC12V power supply, current type output impedance 350 _x000D_DC24V power supply, current type output impedance 900 _x000D_Voltage Type Output Impedance 1K_x000D_Working Environment:_x000D_Temperature -35-60 _x000D_Humidity 100% RH without condensation_x000D_Protection Grade: IP64_x000D_Cable Rating: Rated voltage 300V 80_x000D__x000D_Calculation formula_x000D_Wind Speed Pulse type:_x000D_F=0.5 + 0.101xM_x000D_Wind speed and direction current type_x000D_4-20mA: F=(I-4)/16xA+B_x000D_0-20mA: F=I/20xA+B_x000D_Voltage type for wind speed and direction_x000D_0-2.5V: F=V/2.5xA+B_x000D_0-5V: F=V/5xA+B_x000D_1-5V: F=(V-1)/4xA+B_x000D_F: Indicates the wind speed or direction sensor value, m/s or degree;_x000D_M: Number of pulses in 1 second;_x000D_I: Sensor output current value, mA;_x000D_V: sensor output voltage value, V;_x000D_A: Sensor range width (upper range limit minus lower limit);_x000D_B: sensor range minimum (lower range limit);_x000D_For example: wind speed sensor range of 0-70m/s, then: A = 70, B = 0_x000D_Wind direction range of 0-359 degree, then A = 359, B = 0_x000D__x000D_Wiring method_x000D_1. If the sensor is equipped with our instrument, use the sensor cable to connect the sensor with the corresponding interface on the instrument directly._x000D_2. If the sensor is purchased separately, the wiring sequence is as follows:_x000D_Red: Power Positive_x000D_Black: A+_x000D_Yellow: B-_x000D_Green: Power negative_x000D__x000D_About the sensor communication protocol _x000D_First, if you are using a single sensor connected to the computer to read data directly, it is recommended to use the company's private protocol, you can visualize the data in ASCII code (hex send, non hex receive);_x000D_Second, if you are a multi sensor interconnection with PLC, configuration or programmable collector, it is recommended to use the standard RTU protocol, hex send and receive)._x000D_Third, if there is no special requirement, the default device address in the sensor parameters is 1, baud rate = 9600, protocol RTU._x000D__x000D_Standard RTU communication protocol _x000D_Serial port format_x000D_Data bit 8 bits, stop bit 1 bit, parity bit None, default baud rate 9600bps, serial debugging software set to hex send and receive, two communication intervals of at least 500ms or more, CRC in the manual for the parity bit, 2 bytes. The device address is 1 by default._x000D__x000D_ASCII private communication protocol _x000D_Serial port format_x000D_Data bit 8 bits, stop bit 1 bit, parity bit None _x000D_Baud rate 9600bps, at least 1000ms between communications_x000D__x000D_CRC check procedure _x000D_1. Preset the 16 bit register as hexadecimal FFFF, call this register as CRC register;_x000D_2. Isolate the first 8-bit data with the lower bit of the CRC register and put the result in the CRC register;_x000D_3. check the lowest bit by shifting the contents of the register one bit to the right (towards the lower bit) and filling the highest bit with a 0;_x000D_4. if the lowest bit is 0: repeat step 3 (shift again) if the lowest bit is 1: the CRC register is iso-orthogonal to the polynomial A001 (1010 0000 0000 0001);_x000D_5. Repeat steps 3 and 4 until it is shifted right 8 times so that the entire 8-bit data is all processed;_x000D_6. repeating steps 2 through 5 for the next 8-bit data;_x000D_7. The last CRC register obtained is the CRC code (the CRC code obtained is low before high)._x000D__x000D__x000D_Troubleshooting _x000D_1. The wind blade does not rotate properly and has a big hysteresis. There is foreign matter or stuck in the bearing due to long term use. Please send the sensor back to the company for processing;_x000D_2. The meter display value is not correct when RS485 output. Possible wiring problems or communication serial port failure to obtain the correct data. Please check whether the wiring is correct and firm, whether the serial port is occupied, and whether the serial port setting is correct;_x000D_If it is not the above reasons, please contact the manufacturer.13 Wind Cup Structure: The wind speed part adopts the traditional three wind cup structure, and the wind cup is made of imported ABS material, which has high strength and good startup. 2High Accuracy: Accurate signal processing unit can output all kinds of s