Solar Radiation Sensor Photosynthetic Effective Agricultural Records AntiInterference Total Radiation Sensor 730V Item Type: Solar Radiation Sensor Product Width: Approx.8cm / 3.1in Product Height: Approx.5.8cm / 2.3in Model: RS-GH-N01-AL Type: Type 485 Power Supply: DC 7~30V Material: Aluminum Weight: Approx. 308g / 10.9oz Basic Parameters Power Supply Voltage (Default) 7V-30V DC Export Method 485 (Standard RTU Protocol) Power Consumption 0.06W Range Temperature -30℃-75℃ Response Spectrum 400nm~700nm Measuring Range 0-2500μmol/㎡·s Resolution 1μmol/㎡·s Accuracy ±2% (1000μmol/㎡·s, 60%RH 25℃) Response Time 0.1s Linear ≤±1% Yearly Stability ≤±2% Field Wiring Instructions Line Color Description Power Supply Brown Power Supply (7-30V DC) Black Power Negative Output Green 485-A Blue 485-B Basic Communication Parameters Code 8-Bit Binary System Data Bit 8-Bit Parity Bit Not Support Stop Bit One Bit Error Checking CRC (Redundant Cyclic Code) Baud Rate 2400bit/S, 4800bit/S, 9600bit/S Option, Factory Default 4800bit/s RS- Company Code GH- Photosynthetically Active Radiation Sensor N01- 485 Output (Standard RTU) AL Aluminum Housing Using RTU communication rules, the format is as follows: Initial Structure:≥ 4 Bytes Time Address Code:= 1 Byte Function Code:= 1 Byte Data Area:= N Bytes Incorrect Version:= 16 Bytes CRC Code End Structure:≥ 4 Bytes Time Address Code: The address of the transmitter, which will be the only one in the communication network (factory default 0x01). Function Code: Command function commands from the host, this transmitter only uses function code 0x03 (read register date). Data Area: The data area is the specific communication data. Pay attention to the high byte of the previous 16-bit data. CRC Code: Double-Byte Correction Code. Troubleshooting:1. If the read value is 0, check whether there is a light source, and check whether the product protective cover has been removed.2. Please check whether the 485 wiring is correct and whether the wiring is reversed.3. Check whether the device address of the vehicle is wrong, or there are devices with duplicate addresses (the factory default is 1).4. Check whether the power supply meets the mark.5. The equipment is damaged. Product Maintenance:1. The shell of the product should be kept fluent and clean, and wipe it regularly with a soft cloth.2. Please regularly check whether it is level and whether the screws are loose.