 
					

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 EKO’s 3-channel smart interface for compatibility with 99% of data loggers, DAQ, and SCADA systems, plus internal diagnostic sensors for remote visibility over internal temperature, humidity, tilt and roll angle; ensuring optimum performance with reduced maintenance costs.
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.
Key Features:
| 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 – Total zero off-set | ± 17 W/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 | ± 0.2% | 
| Temperature response (-20°C to 50°C) | ± 4 % | 
| Temperature response (-10°C to 40°C) | ±3% | 
| Tilt Response (0-90° | 1000W/m²) | ± 1% | 
| Additional Signal Processing Error | ± 1.5W/m² | 
| Technical Features : | |
| Wavelength Range | 285 – 3000 nm | 
| Irradiance range (W/m²) | 0 to 2000 | 
| Signal Output | Modbus 485 RTU / 4-20mA / 0-1V | 
| Sensor Diagnostic | Internal Humidity Status, Temp. ± 0.1%, Tilt Angle ± 1° | 
| Supply voltage | 5 to 30 VDC | 
| Power Consumption | <0.2W (Digital), <0.7W(Analog) | 
| Ingress protection | IP67 | 
| Calibration traceability / uncertainty | ISO 17025 / WRR / < 0.7% (k = 1.96) | 
| Standard Cable Length | 10m (Optional lengths 20m, 30m, 50m) | 
| IEC 61724-1:2021 | IEC Class C | 
 
					 How it works
				How it works