MS-40S Pyranometer

  • ISO 9060:2018 Class C (Second class)
  • "Spectrally flat"
  • Quartz diffuser technology
  • ISO 17025 certified calibration
  • 5 year warranty and recommended recalibration
  • Smart interface: (MODBUS 485 RTU, SDI-12, 4-20mA, configurable 0-10mA / 0-1V with external optional 100Ω precision shunt resistor)
  • 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 uses smart sensor technology and on-board diagnostic functions which are now standard for all EKO smart sensors. This technology preserves the high accuracy of the sensor while complying with the various output standards used in the industry. The new Smart signal transducer allows selecting from 4 types of output in one unit (MODBUS 485 RTU, SDI-12, 4-20mA, configurable 0-10mA / 0-1V with external optional 100Ω precision shunt resistor).  The new electronics ensure a great benefit for ...

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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 (MODBUS 485 RTU, SDI-12, 4-20mA, configurable 0-10mA / 0-1V with external optional 100Ω precision shunt resistor)
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 +/- 0.2 %
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 W/m²
  Options

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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