Made in Japan
Manufacturer: Watanabe Electric Industry Co. Ltd
Model: LP PYRA03

The LP PYRA03 is a Class 2 pyranometer that is fully ISO9060 compliant and meets the requirements defined by the World Meteorological Organization (WMO). It does not require a power supply and measures global solar radiation from 0 to 2000W/m2 with high accuracy. In addition, it is a product adjusted to a typical sensitivity of 7μV (W/m2), which is standard for photovoltaic power generation. The tempered glass dome ensures long-term stable use even in harsh weather conditions.

Specifications

• Typical sensitivity: 7μV (W/m2)
• Typical Impedance: 33-45Ω
• Measurement range: 0-2000W/m2
• Visual angle: 2πsr
• Spectral range: 305-2800nm
• Operating temperature: -40 to +80°C
• Weight: about 0.3Kg
  ISO9060 specification
• Response time: <30 seconds
  zero offset
• a) Radiant heat: 25W/m2
• b) Temperature change: ±6W/m2
• Asstability: ±2.5%
• Nonlinearity: ±2%
• Azimuth characteristics: ±22W/m2
• Spectral selectivity: ±7%
• Temperature characteristics: <8%
• Tilt characteristics: ±4%