The MS-80, manufactured by EKO Instruments, is a next-generation ISO 9060 Class A spectrally flat, fast-response pyranometer designed for high-accuracy solar radiation measurement. It features extremely low zero-offset behavior, rapid sensor response, and includes a five-year warranty with an extended recalibration interval.
Specifications
| Sensor | Internal desiccation, single-dome, isolated thermopile detector, quartz diffusor |
| Measurement Description | Monitors solar radiation for the full solar spectrum range |
| ISO Classification |
|
| Output | Analog (mV) |
| Sensitivity | ~10 µV/W/m2 |
| Impedance | < 45000 Ω |
| Response Time | < 1 s (95%) |
| Zero Offset A | < 1 W/m2 (response to 200 W/m2 net thermal radiation) |
| Zero Offset B | ±1 W/m2 (response to 5 K/h change in ambient temperature) |
| Non-Stability | ±0.5% change per 5 years |
| Non-Linearity | ±0.2% (at 1000 W/m2) |
| Directional Response | ±10 W/m2 (at 1000 W/m2) |
| Spectral Selectivity | ±3% (0.35 to 1.5 μm) |
| Temperature Response |
|
| Tilt Response | < ±0.2% (0 to 90° at 1000 W/m2) |
| Operating Temperature Range | -40° to +80°C |
| Irradiance Range | 0 to 4000 W/m2 |
| Spectral Range | 285 to 3000 nm |
| Ingress Protection | IP67 |
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