Feature: 1. Using standard RTU 485 communication protocol, it can directly read the current total solar radiation value, and the wiring method is simple. 2. High measurement accuracy, using pyroelectric sensor elements, short response time, small error, small temperature compensation, and more accurate measurement within the range. 3. The pyroelectric total solar radiation transmitter has beautiful appearance, small installation space, and the spectral range reaches 0.3~3μm. 4. The light transmittance is as high as 95%, and the transparent double‑layer glass cover has good sensitivity and special surface treatment to prevent dust adsorption. 5. Products are widely used in solar energy utilization, meteorology, agriculture, building materials aging and air pollution departments to measure solar radiant energy. Specification: Item Type: Sun Radiation Sensor Material: Aluminum Weight: Approx. 1074g / 37.9oz Width: Approx. 15.5cm / 6.1in Height: Approx. 8.5cm / 3.3in Model: RS-TBQ-N01-AL1. Parameter information: RS- Company code TRA- Total Solar Radiation Transmitter N01- 485 output (standard RTU) AL Aluminum housing Power supply range 10V-30V DC Output method 485 (standard RTU protocol) Power consumption 0.8W Working temperature -40℃~60℃ Working humidity 0%~100%RH Sensitive 7-14 μV·W-1·㎡ Internal resistance About 250-400Ω Response time (99%) ≤30s Non-linear error ≤±3% Corresponding error of direction ≤±30W/m² Temperature response error ≤±8% (-40℃-+40℃) Spectral range 0.3~3μm Measuring range 0-2000W/m² Resolution 1W/m² Accuracy ±3% Annual stability ≤±3% Spectral selectivity ≤±10% Cosine response error ≤±5% Tilt response error ≤±2% 2. Wire installation method: Line color Description Power Brown Power (10~30V DC) Black Power supply negative Output Yellow 485-A Blue 485-B 3. Basic communication parameters: Code 8-bit binary Data bits 8 bits Parity bit No Stop bit one bit Error checking CRC (Redundant Cyclic Code) Baud rate Can be set to 2400bit/s, 4800bit/s, 9600bit/s, the factory default is 4800bit/s 4. Data frame format definition: Using RTU communication protocol, the format is as follows: Time for initial structure ≥ 4 bytes Address code = 1 byte Function code = 1 byte Data area = N bytes Error check = 16-bit CRC code End time structure ≥ 4 bytes Address code: The address of the transmitter, which is unique in the communication internet (factory default 0x01). Function code: Command function instruction issued by the host, the transmitter can use function code 0x03 (read register data) and 0x06 (write register). Data area: The data area is the specific communication data. First, pay attention to the high byte of the 16-bit data! CRC code: double-byte check code. 5. Troubleshooting 1. If the reading is 0, check whether the protective cover of the product has been removed and whether there is sunlight 2. Please check if the 485 wiring is correct 3. Check whether the power supply meets the sign 4. Equipment damage 6. Product Maintenance 1. The glass cover should be kept smooth and clean, often wiped with a soft cloth or fur 2. There should be no water in the glass cover. If you encounter long-term weather such as heavy rain, snow, ice, etc., it is recommended to cover 3. It is recommended to check whether the desiccant in the dryer is damp regularly. The specific manifestation is that orange has turned into a dark color. If this happens, the desiccant should be replaced in time, or the desiccant should be taken out and dried and reused 4. After the equipment has been used for more than two years, the sensitivity must be recalibrated by the manufacturer or measurement department. Package List: 1 x Transmitter Host 1 x Connection Line1Bag x Accessory (2 x Screw, 2 x Nut)1 x English Manual Note: 1. When the customer receives the product, please confirm the product model, etc.2. It is strictly forbidden to energize the wiring, and the wiring can be energized only after the wiring is checked.3. The sensor is a accuracy device, please do not remove the glass cover at will