The MS-40 is an ISO 9060:2018 Class C pyranometer designed for cost-effective and reliable solar irradiance measurement across the full solar spectrum. Ideal for agro-meteorological networks and small-scale PV systems, it features an analog (mV) output and is compatible with EKO’s optional ventilator, heater, and albedo mounting kit. The sensor is ISO 17025 and IEC 60904-7 calibrated, requires no desiccant replacement, includes a 5-year warranty, and has a recommended 2-year recalibration interval.
Specifications
| ISO 9060:2018 |
Class C |
|---|---|
| Response time 95% |
< 18 Sec |
| Zero offset A – Thermal radiation (200W/m²) |
± 12 W/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°) |
± 20 W/m² |
| Spectral Error |
± 0.2 % (Spectral selectivity ± 3%) |
| Temperature response (-20°C to 50°C) |
± 3 % |
| Tilt Response (0-90° | 1000W/m²) |
± 1 % |
| Additional signal processing error |
N/A |
Technical Features |
|
| Wavelength Range |
285 to 3000 nm |
| Maximum Operational Irradiance |
2000 |
| Signal Output |
N/A |
| Sensor Diagnostic |
N/A |
| Operating temperature |
-40 to 80 °C |
| Supply voltage |
– |
| Power Consumption |
0 |
| 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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