Conversion - UV-A Units

NOTE: This conversion is for UV light in sunlight

Conversion for SU-200 series UV-A sensors

To convert units, multiply the measurement from the sensor, in units of W m^-2, by 3.06 µmol J^-1. This converts the UV-A measurements to units of µmol m^-2 s^-1. This multiplier was derived from solar spectral data.

This multiplier is only suitable for sunlight measurements. If the UV-A sensor is used to measure different radiation sources (for example, electric lights), a different multiplier is required for unit conversion because the multiplier is dependent on the spectrum being measured. A spectral measurement is required to derive the conversion factor.

For UV (SU-100 series discontinued) conversions, click here.