How often should a pyranometer be calibrated?

You should calibrate a pyranometer every 12–24 months, depending on environmental conditions and application accuracy requirements. Harsh outdoor environments may require more frequent recalibration to maintain stable performance.

Can I use a pyranometer in cloudy conditions?

Yes. A pyranometer measures both direct and diffuse solar radiation, so it works under cloudy, overcast, and clear-sky conditions. However, readings will naturally be lower and more variable under cloud cover.

What is the best installation height?

There is no fixed standard height, but the sensor should be installed high enough to avoid shading and ground reflection effects. In most field applications, a height of 1.5–2 meters or higher is commonly used.

How do I convert output to W/m²?

You convert the electrical output using the calibration factor provided with the sensor: Irradiance (W/m²) = Output Voltage (μV) × Calibration Factor

What causes measurement errors?

Common error sources include dust or dirt on the sensor dome (2–5% impact), improper leveling (tilt error), temperature drift, and electrical noise from cable interference or poor grounding.