MS-402 First Class Pyranometer Description
The MS-402 Pyranometer is a unique ISO First class pyranometer and best in its category. As the only first class sensor available on the market it has a built in electronic passive temperature compensating to linearize the detector temperature coefficient and make it accurate under all temperature conditions.
The design of the MS-402 First Class Pyranometer is very similar to the Secondary standard MS-802. Its robust brass mechanical construction makes it a durable sensor suitable to be used in harsh environments for routine global irradiance measurements. The MS-402 can be applied as multi purpose high quality monitoring sensor in the PV and Meteorological market. MS-402F is a MS-402 with 110VAC/12 VDC ventilation system to prevent any possible influence of frost, snow and dust.
MS-402 First Class Pyranometer Features
| Specifications (typical) | MS-402 / MS-402F |
| ISO 9060 classification | First Class |
| Response time 95% (sec) | 8 |
| Zero offset - Thermal radiation (200W/m²) | < 6 W/m² |
| Zero offset - Temperature change (5K/hr) | < 2 W/m² |
| Non-stability (change/year) | < 0.5 % |
| Non-linearity (at 1000W/m²) | < 0.2 % |
| Directional response (at 1000W/m²) | < 20 W/m² |
| Spectral selectivity (0.35-1.5µm) | < 1 % |
| Temp. response (for 50°C band) | < 1 % |
| Tilt response (at 1000W/m²) | < 0.2 % |
| Sensitivity (µV/Wm-2) | Approx. 7 |
| Impedance () | Approx. 500 |
| Operating temperature range (°C) | - 40 to +80 |
| Cable length | 10m |
| Wavelength range | 285 to 3000 nm |
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