• DNI Measurement: Less than 10% uncertainty.
• Output: Pulsed analog output of 0-5V.
• Spectral Range: 300 - 2500 nm.
• Sun-Tracker: Not required.
• Configurable Measurements: Can measure DNI, GHI, and DHI.

The MS-90 DNI Sensor is designed to accurately measure Direct Normal Irradiance (DNI) without needing a sun-tracker. It uses a rotating mirror to reflect the sunbeam onto a thermal detector, providing a pulsed analog output compatible with dataloggers. This output is proportional to the DNI and can be used alongside any pyranometer to measure Global Horizontal Irradiance (GHI), allowing for the calculation of Diffuse Horizontal Irradiance (DHI).

The MS-90 is an evolution of the MS-093 sunshine duration meter, known for its reliability and accuracy, and has been used in Japan's AMeDaS network for over a decade. It is ideal for solar energy monitoring systems and meteorological networks.

• ISO 9060 Classification: Compliant.
• Temperature Response: -20°C to 40°C with +/- 5% accuracy.
• Non-linearity: +/- 2.5%.
• Operating Temperature Range: -20°C to 45°C.
• Power Supply: 10.5 - 12.5 VDC.
• Dimensions: 350 mm (W) x 250 mm (L) x 200 mm (H).
• Weight: 2.5 kg.
• Ingress Protection: IP 67.
• Cable Length: 10 m standard, with options for 20, 30, or 50 m.
• Geographic Application: Latitude -58º to 58º, Longitude 0º to 360º.
• Power Consumption: Less than 5 W.
• Optional Accessories: Base plate with leveling feet, power supply options ranging from 100 to 240 VAC.

Specifications are subject to change without notice.