Key Features

  • High-performance thermopile sensor with 300-2900 nm spectral sensitivity
  • Double dome construction with high-transparency hemispherical optical glass
  • Durable anodized aluminum body for optimal outdoor performance
  • 4-20 mA current loop output for reliable long-distance signal transmission
  • 50m current loop cable included (optional lengths available)
  • Superior weather resistance for consistent performance in varied environments
  • Fully compliant with ISO 9060:2018 standards
  • Precise calibration against Secondary Standard pyranometers
  • Fast response time of <20 seconds for real-time monitoring
  • 2-year warranty for peace of mind
  • Recommended every 20–24 months to maintain calibration specs

PYR1-420 – Class B Thermopile Pyranometer

ISO 9060:2018 Class B certified, ensuring adherence to international standards for solar radiation measurement instruments.

  -  

Analog

 Output

PYR1-420 is an ISO 9060:2018 Class B (First Class) Thermopile Pyranometer designed for high-precision solar radiation measurement. It features advanced electronics that amplify the thermopile’s weak signal using top-quality operational amplifiers, ensuring linearity, noise resistance, and consistent performance across temperature variations. The device outputs a normalized 4-20mA signal, utilizing a current loop for simple two-wire connectivity and excellent electromagnetic interference immunity, even over long distances. This pyranometer is particularly suitable for meteorological applications and monitoring photovoltaic system performance, especially when required by EPC and O&M contracts.

Key Features

  • High-performance thermopile sensor with 300-2900 nm spectral sensitivity
  • Double dome construction with high-transparency hemispherical optical glass
  • Durable anodized aluminum body for optimal outdoor performance
  • 4-20 mA current loop output for reliable long-distance signal transmission
  • 50m current loop cable included (optional lengths available)
  • Superior weather resistance for consistent performance in varied environments
  • Fully compliant with ISO 9060:2018 standards
  • Precise calibration against Secondary Standard pyranometers
  • Fast response time of <20 seconds for real-time monitoring
  • 2-year warranty for peace of mind
  • Recommended every 20–24 months to maintain calibration specs
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Details

Cutting-Edge Sensor Technology

At the heart of the PYR1-420 lies a high-performance thermopile sensor, capable of measuring solar radiation across a broad spectral range of 300 to 2900 nm. This wide spectrum coverage ensures comprehensive solar radiation measurement, capturing both visible and near-infrared wavelengths with precision.

Advanced Signal Processing

The PYR1-420 incorporates sophisticated electronics to amplify the delicate signal from the thermopile sensor. Utilizing top-tier operational amplifiers, this pyranometer achieves outstanding performance in terms of linearity, noise immunity, and consistent behavior across temperature variations and extended periods. The result is a highly reliable and accurate measurement system that maintains its precision over time.

Optimized Output for Long-Distance Transmission

The sensor’s output is normalized to a 4-20mA current loop, a standard in industrial instrumentation. This analog output mode offers several advantages:

  • Simple two-wire cabling for easy installation
  • High immunity to electromagnetic interference
  • Reliable signal transmission over distances exceeding ten meters

These features make the PYR1-420 particularly well-suited for large-scale solar installations and remote monitoring applications.

Robust Design for Outdoor Durability

Engineered for long-term outdoor deployment, the PYR1-420 features:

  • A double dome design with hemispherical optical glass, ensuring high transparency and protection
  • An anodized aluminum body that withstands harsh environmental conditions
  • Enhanced weather resistance for reliable operation in diverse climates

Precision Calibration and Quality Assurance

Each PYR1-420 undergoes rigorous calibration against a Secondary Standard (Class A Thermopile Pyranometer), which is rechecked every 12 months. This meticulous calibration process, compliant with ISO 9847 standards, ensures the highest level of measurement accuracy and traceability.

Optional Accessories

Thermopile Pyranometer Comparison Table

Specifications

  • Product Name: PYR1-420
  • Classification: ISO 9060:2018 Class B (First Class) Thermopile Pyranometer
  • Reference Standards: ISO 9060, WMO, ISO 9846
  • Output: 4-20 mA current loop
  • Calibration: ISO 9847 compliant, using Secondary Standard Pyranometer
  • Spectral Sensitivity: 300-2900 nm
  • Measurement Range: 0-1600 W/m²
  • Response Time: < 20 seconds
  • Output Precision:
    • Tilt response (0°-90°): ± 2%
    • Temperature response (∆t = 50°K): < 4%
  • Power Supply: 9-30 VDC (protected against short circuit)
  • Encapsulation:
    • Dome: Quartz [k5]
    • Optical Glass: Double layer with high transparency (0.3-3 μm)
  • Body: Anodized Aluminum
  • Connector: Standard M8 3-pin female
  • Dimensions: Φ162 x 104mm (height)

Compatibility

Our devices are engineered with high precision and reliability, designed to seamlessly integrate with a wide range of photovoltaic systems and installations. We recommend consulting the compatibility table to ensure that your chosen sensor is fully compatible with your specific configuration.

Producer
Device
Device Code
Download
Kaco
Kindly contact Us for Manual
Meteocontrol
BlueLog
Kindly contact Us for Manual
Nova Project
Listed - Kindly contact the producer for Manual
PROXIME
Listed - Kindly contact the producer for Manual
SIEL
Download the manual from following link
SMA
Data Manager M
Installation Manual included in the product
SolarEdge
Kindly contact Us for Manual
Solax Power
Listed - Kindly contact the producer for Manual

Possible combinations

This table outlines the various configurations and their corresponding applications, helping you quickly identify the best solution for your system.

Compatible Sensor Combinations

How it works: Pair this sensor with the devices listed below to create powerful measurement systems. Each combination provides specific output types and calculated values to meet your monitoring needs.

Associated Sensors
Output
Calculated Values
No combinations found

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