1. Wind Direction Sensor: The all round 360 degree wind direction sensor comes with excellent linearity, high accuracy, no dead points, strong , easy observation, and reliable stability.
2. Wind Direction Indicator Cover: Small rotational , accurate measurement, small size, light weight, easy to carry and assemble. It has a simple design, but very practical in use, giving you a good using experience.
3. ABS Material: Made with a low inertia ABS wind vane, the sensor exhibits good dynamic characteristics and responds well to wind direction changes. Safe to use. Boasting wonderful performance and strong stability.
4. Working Principle: The wind direction sensor operates primarily by rotation. This working principle enables accurate measurements of the wind's direction. It can be used outdoors for a long time.
5. Wide Application: Ideal for meteorology, environmental monitoring, aviation, and aerospace. It aids in understanding wind conditions and implementing corresponding measures.
Spec:
Item Type: Wind Direction Sensor
Material: ABS
Product Size: Approx. 223x190x70mm/8.78x7.48x2.76in
Gross Weight: Approx. 385.00g/13.6oz
Power Supply Voltage: DC 5V
Output: RS485 for Modbus
Extension Cable Length: 0.8m/2.6ft
Accuracy: Omni directional: ±3°
Resolution: Omni directional: 1°
Startup Wind Speed: ≤0.8m/s
Maximum Power Consumption: 0.48W
Load Capacity: DC 12V power supply, current output impedance ≤350Ω
DC24V power supply, current output impedance ≤900Ω
Voltage output impedance ≥1KΩ
Operating Environment: Temperature -35℃ to 60℃
Humidity ≤100%RH non condensing
Protecting Level: IP64
Cable Level: Rated voltage: 300V 80℃
Application: for garden, greenhouse, environmental protecting, meteorological station, ship, dock, aquaculture, advertising barrier, weather, marine, environment, airport, port, laboratory, and traffic environment wind direction measurement
Installation Aperture: 3.2mm/0.13in
Mating Plug Diameter: 15mm/0.59in (recommend reserving 25mm/0.98in for wiring, wire up first, then install and fix the sensor)
Wiring Method:
Red wire: power positive(voltage, current, pulse), power positive(RS485)
Black wire: power negative(voltage, current, pulse), A+ (RS485)
Yellow wire: signal (voltage, current, pulse), B- (RS485)
Green wire: power negative(RS485)
Standard for ModBus RTU communicating protocol :
First, the serial port format: data bits 8 bits, stop bit 1 bit, parity bit none, default baud rate 9600bps, serial port software set to hex send and receive, two communicating intervals of at least 500ms or more, CRC in the manual for the parity bit, 2 bytes. Device address default address 2.
Second, the communicating format
1. Write the device address (for example, write address 02)
Send0006002000020810
InstructionAddressWriteStarting addressNew addressCRC check
Return0006002000020810
InstructionAddressWriteStarting addressNew addressCRC checkReturn 01 86 ** ** then the configuration is not successful.
2. Read device address (e.g. read address 2)
Send0003002000018411
InstructionAddressReadStarting addressRead PointsCRC check
Return00030200020445
InstructionAddressReadData lengthDevice dataCRC check3. Read register data (eg: read address 2 data)
Send0203000000018439
InstructionAddressReadStarting addressRead PointsCRC check
Return02030200267D9E
InstructionAddressReadData lengthDevice dataCRC checkOmnidirectional wind sensor returns data as 0x0026 converted to decimal as 38 , the wind direction value is 38 degrees, no decimal places. If it is an eight direction wind direction sensor, the return data refers to the table of eight direction calculation formula on page 1.
4. Read device communicating baud rate (for example: read address 2 of the device baud rate = 9600)
Send02030010000185FC
InstructionAddressReadStarting addressRead PointsCRC check
Return02030200027D85
InstructionAddressReadData lengthDevice dataCRC checkBaud rate = data x 4800. return data 0x0002, then baud rate = 4800x2 = 9600.
5. Write device communicating baud rate (for example, write baud rate 9600)
Send02060010000209FD
InstructionAddressReadStarting addressNew baud rateCRC check
Return02060010000209FD
InstructionAddressReadStarting addressNew baud rateCRC checkBaud rate = data x 4800. write data 0x0002, then baud rate = 4800x2 = 9600. supported baud rates are 4800, 9600, 14400, 19200, 38400, 57600, 115200. if write other unsupported baud rate, it will be automatically restored to 9600 after reboot.
Returning 01 86 **** means the configuration is not successful.
6. Switch the communicating protocol (e.g. switch to for ASCII private protocol).
Send02060014000389FC
InstructionAddressWriteStarting address01 for MODBUS03 for ASCIICRC check
Return02060014000389FC
InstructionAddressWriteStarting addressDataCRC checkIf 01 86 **** is returned, the configuration was unsuccessful.
Change the protocol from 01-for MODBUS to 03-for ASCII private protocol.
For Modbus CRC checking steps :
1. Preset the 16