MS-40S Pyranometer

  • ISO 9060:2018 Class C (Second class)
  • "Spectrally flat"
  • Quartz diffusor technology
  • ISO 17025 certified calibration
  • 5 years warranty and recommended recalibration
  • Smart interface: Modbus 485 RTU, SDI-12, 4-20mA, 0-1V (100Ω)
  • Diagnostic functions (relative humidity, temperature, tilt angle)
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The MS-40S is an ISO 9060:2018 Class C pyranometer which is based on EKO's universal sensor platform. This sensor can be used in many meteorological networks and professional small scale PV sites where solar radiation is taken seriously.

The MS-40S with smart sensor technology and onboard diagnostic functions now standard for all smart sensors. Preserve the high accuracy of the sensor while complying with the various output standards used in the industry. The new Smart signal transducer which allows selecting from 4 types of output in one unit.  The new electronics ensure a great benefit for system integrators who work with various industrial interface standards.

The MS-40S with Smart transducer will also have additional features such as internal ...

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  Specifications MS-40S
  ISO 9060:2018 Class C
  ISO 9060:1990 Second Class
  Sub-category "Spectrally flat" Compliant
  Sub-category "Fast response" Not compliant
  Output Digital (Modbus RTU)
Response time 95% < 18 Sec.
Zero off-set a) 200W/m² +/- 12 W/m²
Zero off-set b) 5K/hr +/- 5 W/m²
Complete zero off-set c) +/- 17 W/m²
  Non-stability change/1 year +/- 1.5 %
Non-linearity at 1000W/m² +/- 1 %
Directional response at 1000W/m² +/- 20 W/m²
Spectral error +/- 0.16 %
Temperature response -10°C to 40°C +/- 3 %
Temperature response -20°C to 50°C +/- 3 %
Tilt response at 1000W/m² +/- 1 %
Sensitivity -
  Impedance -
  Operating temperature range -40 - 80 °C
Irradiance range 0 - 2000 W/m²
Wavelength range 285 - 3000 nm
  Ingress protection IP 67
  Cable length 10 m
Power supply 5 - 36 VDC
Power consumption < 0.2 W
Additional signal processing errors < 1.7 W/m²

Applications and uses

Usually, the performance of a PV module is measured at the factory under the so-called Standard Test Conditions (STC), described in IEC 60904. This is a convenient test method that ...

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