EKO MS-802 Pyranometer



Product Introduction
Product Features
Technical Details
Product Introduction

The MS-802 Secondary standard pyranometer is a reliable reference sensor to measure global broad-band radiation with high precision. It is used as a standard in PV research and climatological studies around the world.

A high quality double-dome construction is adopted to improve the accuracy of the measurement and to minimize unwanted thermal offsets. The ventilation unit of the MS-802F model will reduce the deposition of dust, dew, frost, snow.

The MS-802 pyranometers are manufactured in a consistent way followed by strict quality inspection and performance evaluation. For each sensor the directional response and temperature dependency are measured and validated through a measurement report that comes with the sensor. EKO provides a unique calibration compliant to the international standards defined by ISO/IEC17025/9847.

Product Features

  • ISO 9060 Secondary standard
  • Temperature compensation
  • ISO 17025 certified calibration
  • 5 years warranty
  • MS-802F with ventilation

Technical Details

ISO 9060 classification Secondary Standard
Output Analog (mV)
Response time 95% < 5 Sec.
Zero Offset A 200W/m² < 6 W/m²
Zero Offset B 5K/hr +/- 2 W/m²
Non-stability change/1 year +/- 0.5 %
Non-linearity at 1000W/m² +/- 0.2 %
Directional response at 1000W/m² < 10 W/m²
Spectral selectivity 0.35-1.5µm +/- 1 %
Temperature response -10°C to 40°C < 1 %
Temperature response -20°C to 50°C < 2 %
Tilt response at 1000W/m² +/- 0.2 %
Sensitivity Approx. 7 µV/W/m²
Impedance Approx. 500 Ω
Operating temperature range -40 – 80 °C
Irradiance range 0 – 4000 W/m²
Wavelength range 285 – 3000 nm
Ingress protection IP 67
Cable length 10 m


  • Accurate solar radiation measurements
  • DHI Measurements
  • Solar Radiation Measurements in PV applications
  • Solar radiation energy budgets studies