Solar Radiation Transmitter for Accurate Global Irradiance Monitoring
The POLWAX PLXSRT300 is a precision-engineered pyranometer designed for continuous and accurate measurement of global solar radiation. With a full 180° hemispherical field of view, high-accuracy photoelectric sensing element and multiple industrial output options, it provides reliable solar irradiance data for renewable energy, agriculture, environmental monitoring and industrial applications.
Precision Solar Irradiance Measurement for Demanding Applications
The POLWAX PLXSRT300 Solar Radiation Transmitter is designed for continuous measurement of global solar radiation in W/m². Its high-accuracy photoelectric sensing element provides stable and repeatable measurement across a full 180° hemispherical field of view.
The transmitter incorporates a high-transparency protective dome with anti-dust surface treatment to maintain excellent light transmission while reducing environmental interference from dust and airborne particles.
Its industrial-grade aluminum alloy housing provides a rugged solution for permanent outdoor installation. The built-in leveling bubble and mechanical adjustment mechanism help achieve accurate horizontal alignment during installation.
The PLXSRT300 supports RS485 Modbus RTU, 4–20 mA, 0–5 V and 0–10 V outputs, allowing seamless integration with SCADA systems, PLCs, data loggers, building management systems and other automation platforms.
PLXSRT300 Technical Specifications
Technical specifications for the POLWAX PLXSRT300 Solar Radiation Transmitter.
| Specification | PLXSRT300 |
|---|---|
| Measurement Parameter | Solar Radiation (Global Radiation) |
| Measurement Range | 0 to 1800 W/m² |
| Temperature | –40 °C to +120 °C |
| Resolution | 1 W/m² |
| Accuracy / Non-linearity | ±3% |
| Response Time | ≤ 10 seconds |
| Annual Stability | ≤ ±2% |
| Spectral Response | Full spectrum (wide-band absorption) |
| Field of View | 180° |
| Power Supply | DC 7–30 V (Analog) / DC 9–30 V (RS485) |
| Power Consumption | ≤ 0.6 W (RS485), ≤ 0.06 W (Analog) |
| Output Signals | RS485 (Modbus RTU), 4–20 mA, 0–5 V, 0–10 V |
| Communication Protocol | Modbus RTU (RS485) |
| Operating Temperature | –25 °C to +60 °C |
| Operating Humidity | 0–95% RH (non-condensing) |
| Protection | Weather-resistant housing for outdoor use |
| Mounting | Pole / Flat surface mounting |
| Level Adjustment | Built-in leveling bubble with thumb screw |
| Housing Material | Industrial-grade aluminum alloy |
Built for Accurate & Reliable Solar Radiation Monitoring
The PLXSRT300 combines accurate solar irradiance measurement, wide spectral response, rugged outdoor construction and flexible industrial connectivity.
High-Precision Photosensitive Element
A high-accuracy photoelectric sensing element provides stable and repeatable global solar radiation measurement.
Full-Spectrum Response
Wide-band spectral response enables reliable solar irradiance measurement across the full applicable solar spectrum.
180° Hemispherical Measurement
The full 180° field of view supports accurate measurement of global solar radiation from the entire hemisphere.
High-Transmittance Protective Dome
The protective dome provides excellent light transmission and features anti-dust surface treatment for outdoor operation.
Multiple Industrial Outputs
Flexible output options include RS485 Modbus RTU, 4–20 mA, 0–5 V and 0–10 V for easy system integration.
Fast Response Time
With a response time of ≤10 seconds, the transmitter provides timely solar irradiance information for monitoring and control.
Built-In Leveling System
The integrated bubble level and mechanical adjustment mechanism help achieve accurate horizontal alignment during installation.
Rugged Outdoor Construction
Industrial-grade aluminum alloy housing and weather-resistant construction make the sensor suitable for permanent outdoor installations.
Low Power Consumption
Low power requirements of ≤0.6 W for RS485 and ≤0.06 W for analog versions support efficient continuous operation.
Solar Radiation Monitoring Across Multiple Industries
The PLXSRT300 is designed for accurate solar irradiance measurement in renewable energy, agriculture, environmental monitoring and building automation applications.
Solar Power Plant Performance Monitoring
Monitor real-time solar irradiance to evaluate photovoltaic panel efficiency, energy yield and performance ratio. RS485 Modbus RTU enables integration with plant SCADA systems.
Renewable Energy & PV System Analysis
Provide reliable global solar radiation data for PV system design, performance analysis, energy forecasting and long-term renewable energy assessment.
Smart Agriculture & Greenhouses
Measure solar radiation for greenhouse climate control, automated shading, irrigation management and crop-environment optimization.
Environmental & Climate Research
Support climate research, atmospheric studies, environmental monitoring and long-term solar irradiance data collection.
Weather Monitoring Stations
Integrate accurate solar radiation measurement into weather stations and environmental monitoring networks for comprehensive meteorological data acquisition.
Building Energy Management
Use real-time solar radiation information for HVAC optimization, automated shading systems, energy management and building automation.
Solar Irradiance Measurement
Suitable for continuous monitoring of solar radiation at outdoor research facilities, solar test sites and industrial measurement installations.
Industrial Automation
Connect solar radiation measurements to PLCs, SCADA systems, data loggers and automation controllers using flexible analog or RS485 outputs.
Energy & Environmental Monitoring
Provide reliable irradiance information for environmental assessments, renewable energy projects and continuous outdoor monitoring systems.
Flexible Connectivity for Industrial Monitoring Systems
The PLXSRT300 is designed for straightforward integration into industrial automation, renewable energy and environmental monitoring systems.
- RS485 communication with Modbus RTU protocol
- 4–20 mA analog output
- 0–5 V voltage output
- 0–10 V voltage output
- Compatible with SCADA monitoring systems
- Suitable for PLC and industrial controllers
- Integration with data loggers and acquisition systems
- Suitable for BMS and energy management platforms
Designed for Seamless Industrial Integration
Select the output configuration that best matches your monitoring or automation system.
PLXSRT300 Product Resources
Access technical documentation and product resources for the POLWAX Solar Radiation Transmitter.
Reliable Solar Radiation Measurement for Professional Applications
The POLWAX PLXSRT300 combines accurate irradiance measurement, wide spectral response, rugged outdoor construction, easy leveling and flexible industrial connectivity in a professional solar monitoring solution.
- Measurement range from 0 to 1800 W/m²
- Accuracy / non-linearity of ±3%
- Annual stability ≤ ±2%
- 1 W/m² resolution
- Full-spectrum wide-band response
- 180° hemispherical field of view
- RS485 Modbus RTU communication
- 4–20 mA, 0–5 V and 0–10 V outputs
- Weather-resistant outdoor construction
- Industrial-grade aluminum alloy housing
- Built-in leveling bubble and adjustment screw
- Pole and flat-surface mounting options
PLXSRT300 Solar Radiation Transmitter FAQs
What does the PLXSRT300 measure?
The PLXSRT300 measures global solar radiation and provides the measurement in W/m².
What is the measurement range of the PLXSRT300?
The solar radiation measurement range is 0 to 1800 W/m².
What is the accuracy of the Solar Radiation Transmitter?
The PLXSRT300 provides an accuracy / non-linearity of ±3%.
What is the field of view?
The transmitter provides a full 180° hemispherical field of view for global solar radiation measurement.
Which output signals are available?
The PLXSRT300 supports RS485 Modbus RTU, 4–20 mA, 0–5 V and 0–10 V output options.
Can the PLXSRT300 be connected to a SCADA system?
Yes. The RS485 Modbus RTU interface and analog outputs allow the transmitter to be integrated with SCADA systems, PLCs, data loggers and industrial automation platforms.
Is the PLXSRT300 suitable for outdoor installation?
Yes. The transmitter is designed with weather-resistant construction and an industrial-grade aluminum alloy housing for outdoor applications.
How is the transmitter leveled during installation?
The PLXSRT300 includes a built-in leveling bubble and mechanical adjustment mechanism with a thumb screw to assist with accurate horizontal alignment.
Where can the PLXSRT300 be used?
Typical applications include solar power plants, renewable energy projects, smart agriculture, greenhouses, weather stations, environmental research, building energy management and industrial automation.
Measure Solar Radiation with Confidence
The POLWAX PLXSRT300 provides accurate, stable and real-time global solar radiation measurement for solar power plants, renewable energy systems, agriculture, weather stations, environmental monitoring and industrial automation.