1. [HIGH PRECISION MEASUREMENT] Measure total solar radiation accurately in the range of 0.3-1.1μm. Always excellent stability and precision.
2. [DURABLE CONSTRUCTION] Quartz glass cover and protective housing for reliable performance in all weather conditions.
3. [WIDE APPLICATION] Ideal for the meteorology, energy, and construction industries.
4. [EASY INSTALLATION] Using the included hardware, mount the sensor parallel to the . Easy setup process.
5. [VERSATILE OUTPUT] RS485 output with Modbus protocol for seamless data transfer.

Technical data:
Item Type: Solar Radiation Sensor
Wire Color:
Red: Output signal RS485: Current positive
Black: Output signal RS485: A+
Yellow: Output signal RS485: B-
Green: Output signal RS485: Current negative
Power supply: 9-30V
Output: RS485 (standard for Modbus protocol)
Product size: Approx. 65 x 52 x 49 mm / 2.6 x 2 x 1.9 inches, Bottom hole distance: approx. 57 mm / 2.2 inches
Material: Aluminum alloy
Spectrum range: 300-1100 nm
Resolution: 1 W/㎡
Measuring range: 0-1500 W/㎡
Sensitivity: 7-14 μV/W ㎡
Accuracy: ±5%
Load capacity: Current output impedance RL≤250Ω Voltage output impedance RL≥1KΩ
Response time: Cosine Response: Nonlinearity: Annual Variation: Operating Environment: Temperature -40℃ to 60℃; Humidity ≤ 100% RH
Power consumption: 0.48 W
Weight: approx. 298.00 g / 10.51 oz
For Modbus CRC check steps:.
1. Set the 16-bit register to hexadecimal and name this register as CRC register;
2. Isolate the first 8-bit data with the lower bit of the CRC register and enter the result into the CRC register;
3. Shift the contents of the register one bit to the right (towards the lowest bit), fill the highest bit with 0 and check the lowest bit;
4. If the lowest bit is 0: repeat step 3 (shift again) If the lowest bit is 1: The CRC register is isoorthogonal to the polynomial A001 (1010 0000 0000 0001);
5. Repeat steps 3 and 4 until it is shifted to the right eight times so that all 8-bit data is processed;
6. Repeat steps 2 to 5 for the next 8-bit data.
The final obtained CRC register is the CRC code (the CRC code obtained is Low before High).
Troubleshooting:
The display value of the meter is incorrect when outputting. Correct data may not be captured due to cabling problems or a failure of the serial communications port. Please check whether the wiring is correct and tight, whether the serial port is occupied, and whether the serial port setting is correct;

Usage:
1. Make sure the mounting bracket is parallel to the.2. Attach the sensor to the mounting bracket using M3 screws and nuts through the two mounting holes on the sensor.3. Avoid disassembling the sensor during installation.

List of packages:
1 x Solar Radiation Sensor
1 x User Manual

Note:
1. Please check whether the packaging is intact and whether the product model matches the selection. 2. Do not wire the device while it is on, only turn it on after checking whether the connection is correct.
3. The length of the sensor cable affects the output signal of the product. Do not change it randomly during use.
4. The sensor is a precision device. Please do not disassemble it, use objects, or touch the sensor surface with corrosive liquids to avoid damaging the product.
5. Remove the before using the sensor.