As part of EKO’s advanced S-Series pyranometer family, the MS-40S delivers dependable solar irradiance measurements while maintaining the same rugged build quality and smart technology found in the higher-class MS-80S and MS-60S models. Engineered for seamless integration, the MS-40S features EKO’s innovative 3-channel smart interface, ensuring compatibility with nearly all data loggers, DAQ systems, and SCADA platforms.
Specifications
| 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 |
Environmental Monitoring Systems
Solar Resource Assessment
Research & Meteorological Stations
Professional Small-Scale PV Sites
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