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How it works
MS-90
DNI Sensor
No sun tracker required
A revolutionary design with proven reliability, it is made to measure Direct Normal Irradiance (DNI) without a sun tracker based on a unique rotating mirror design that reflects the sunbeam onto a thermal detector.
MS-90
A revolutionary design with proven reliability, the internal rotating mirror of the MS-90 DNI Sensor is based on the hugely successful MS-093 sunshine duration meter, deployed across Japan for over 10 years at over 800 AMeDaS network weather stations.
Designed to accurately measure Direct Normal Irradiance (DNI) without a sun tracker, the MS-90 is ideal for solar energy monitoring systems and meteorological networks.
Key Features:
- DNI measurement (<10% uncertainty)
- Cost-effective, no sun-tracker required
- Spectral range 300 – 2500nm
- Low maintanence, with no external moving parts
- Pulsed analog output 0-2V
- Optional C-Box with GPS and Modbus output
Accessories
Frequently Paired Together
| ISO 9060:2018 | |
|---|---|
| Response time 95% | <18 Sec |
| Zero offset A – Thermal Radiation (200W/m²) | |
| Zero offset B – Temperature change (5K/hr) | |
| Zero offset C – Complete Zero off-set | ± 17W/m² |
| Non-stability (change/year) | |
| Non-linearity (100 to 1000W/m²) | |
| Directional Response (at 1000W/m² | 0 to 80°) | |
| Spectral Error | |
| Temperature response (-20°C to 50°C) | |
| Tilt Response (0-90° | 1000W/m²) | |
| Additional Signal Processing Error | ± 1.5W/m² |
| Technical Features : | |
| Wavelength Range | 285 – 3000 nm |
| Irradiance range (W/m²) | |
| Signal Output | |
| Sensor Diagnostic | |
| Operating temperature | |
| Supply voltage | |
| Power Consumption | |
| Ingress protection | IP67 |
| Calibration traceability / uncertainty | |
| Standard Cable Length | |
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