• Measures solar irradiance with temperature compensation.
• Extended measuring range up to 1200 W/m².
• Single calibration to standard measuring signal.
• Includes module temperature measurement.
• Easy to mount with a 3m UV resistant connection cable.

• General: Current shunt: 0.1 Ohm, Operating temperature: -20°C to +70°C, Voltage supply: 12 to 24VDC, Current consumption: 0.3mA, Cell size: 50 x 34mm, Weight: 340g.
• Type Si-12TC: Solar irradiance measuring range: 0 to 1200W/m², Output signal: 0 to 10V, Measuring accuracy: +/- 5% of the final value.
• Type Si-12TC-T: Solar irradiance and module temperature measuring range: -20°C to 80°C, Output signal: 1.84V + T[°C] * 92mV/°C, Measuring accuracy: +/- 1.5% to +25°C, Non-linearity: 0.5°C, Maximum deviation: 2°C.

• Orange: Irradiance measurement signal (0-10V).
• Red: Supply voltage (12-24VDC).
• Black: GND.
• Brown: Temperature measurement signal (0-10V/optional).

The irradiance sensor uses a mono-crystalline silicon cell to measure solar irradiance, with active temperature compensation for improved accuracy. Each sensor is calibrated against a pyranometer, regularly calibrated by PTB Braunschweig.

The solar cell is embedded in Ethylen-Vinyl-Acetat (EVA) between glass and Tedlar foil, integrated into an anodized aluminium case, similar to a PV module. Electrical connection is via a 3m UV resistant cable.

The Si-12TC-T sensors can also measure solar cell temperature using a sensor laminated directly to the cell.