Japan EKO Photoelectric Sensor - MS-402/MS-402F
ISO 9060 Classification: First Class
Response Time: 8 sec
Zero Offset Error Thermal Radiation (200W/m²): < 6 W/m²
Zero Offset Error Temperature Change (5K/hr): < 2 W/m²
Impedance: Approximately 500Ω
Operating Temperature Range: -40 to +80°C
Wavelength Range: 285 to 3000 nm
Product Introduction
Japan EKO Photoelectric Sensor MS-402 Description:
The MS-402 solar radiometer is the only ISO first-class solar radiometer. As the only first-class sensor currently on the market, it has built-in electronic passive temperature compensation, linearizing the detector's temperature coefficient, enabling accurate measurement under all temperature conditions.
The MS-402 first-class solar radiometer is designed very similarly to the second-class standard MS-802. Its sturdy brass mechanical structure makes it a durable sensor suitable for harsh environments of daily irradiance measurement. The MS-402 can be used as a versatile high-quality monitoring sensor in photovoltaic and meteorological markets. The MS-402F is an MS-402 with a 110VAC/12VDC ventilation system to prevent the effects of frost, snow, and dust.
Japan EKO Photoelectric Sensor MS-402 Features:
First-class solar radiometer
Response time (95% < 8s)
Temperature compensation < 1% (50°C band)
Close to second-class standard specifications
Japan EKO Photoelectric Sensor MS-402 Parameters:
| Model |
MS-402 / MS-402F |
| ISO 9060 Classification |
First Class |
| Response Time95% (sec) |
8 |
| Zero Offset Error Thermal Radiation (200W/m²) |
< 6 W/m² |
| Zero Offset Error Temperature Change (5K/hr) |
< 2 W/m² |
| Instability (change/year) |
< 0.5 % |
| Non-linearity (1000 W/m²) |
< 0.2 % |
| Directional Response（At 1000 W/m²） |
< 20 W/m² |
| Spectral Selectivity（0.35 - 1.5µm） |
< 1 % |
| Temporary Response（50°C band) |
< 1 % |
| Tilt Response（At 1000 W/m²） |
< 0.2 % |
| Sensitivity（µV / W•m-2） |
Approximately 7 |
| Impedance（Ω） |
Approximately 500 |
| Operating Temperature Range（°C） |
-40 to +80 |
| Cable Length |
10m |
| Wavelength Range |
285 to 3000 nm |
