ISO 9060:2018 Class C
Spectrally Flat
The MS-40S is a cost-efficient Class C sensor and part of the most accurate, reliable and robust family of pyranometers; a class-leading solution for system integrators, agrometeorological networks, and professional small-scale PV sites.
The S-Series MS-40S ISO 9060:2018 Class C pyranometer is a cost-efficient part of the most accurate, reliable and robust family of pyranometers in the world and the class-leading solution for system integrators, agrometeorological networks, and professional small-scale PV sites.
Built with the same unique S-Series features as the Class A MS-80S and Class B MS-60S, the MS-40S comes with internal diagnostic sensors for remote visibility over internal temperature, humidity, tilt and roll angle, ensuring optimum performance with reduced maintenance costs.
EKO’s 4-channel smart interface ensures that the MS-40S is compatible with 99% of data loggers, DAQ, and SCADA systems and with Level A EMI/EMC electronic surge filter and protection, 5-year warranty, lifetime desiccant, and ISO 17025 accredited calibration, the MS-40S is the toughest, most reliable, and advanced Class C pyranometer available.
The MS-40S Albedometer consists of two MS-40S Pyranometers and the MS-Albedo Kit with a glare screen to measure albedo and total reflectance across various applications, including solar power plants with bi-facial PV modules.
MS-40S Pyranometers are manufactured with strict quality controls and performance evaluation. EKO provides calibration compliant with the international standards defined by ISO/IEC17025/9847 with a 2-year recommended re-calibration interval.
- 5 year warranty & recommended 2 year recalibration interval
- Smart 4-channel Analogue & Digital Interface
- Level A EMI/EMC electronics surge filter & protection
- Internal diagnostics for temperature, tilt, roll, and relative humidity
| ISO 9060:2018 | Class C |
| Response time 95% | <18 Sec |
| Zero offset A - Thermal Radiation (200W/m²) | ± 12W/m² |
| Zero offset B - Temperature change (5K/hr) | ± 5W/m² |
| Zero offset C - Complete zero off-set | ± 17W/m² |
| Non-stability (change/year) | ± 1.5% |
| Non-linearity (100 to 1000W/m²) | ± 1% |
| Directional Response (at 1000W/m² | 0 to 80°) | ± 20W/m² |
| Spectral Error (Spectral selectivity ± 3%) | ± 0.2% |
| Temperature Response (-20°C to 50°C) | ± 3% |
| Tilt Response (0-90° | 1000W/m²) | ± 1% |
| Additional Signal Processing Error | ± 1.5W/m² |
| Technical Features | |
|---|---|
| Wavelength Range (nm) | 285 - 3000 |
| Irradiance range (W/m²) | 0 - 2000 W/m² |
| Signal Output | MODBUS 485 RTU, SDI-12, 4-20mA, configurable 0-10mA / 0-1V* |
| Sensor Diagnostic | Relative Humidity ± 2% Temp. ± 0.1% / Tilt Angle ± 1° |
| Operating temperature | -40 to 80 °C |
| Supply voltage | 5 to 30 VDC |
| Power Consumption | < 0.2 W |
| Ingress Protection | IP 67 |
| Calibration traceability / uncertainty | ISO 17025 / WRR / < 0.7% (k = 1.96) |
| Standard Cable Length | 10m (Optional lengths 20m, 30m, 50m) |
