Ultraviolet Sensors and Meters
Making a Measurement
This product measures the ultraviolet radiation between 250 and 400
nanometers, in
µmol m-2 s-1.
Model SU-100:
$159
CONVERSION FACTORS
Models with a
handheld meter display UV radiation in µmol m-2 s-1.
Sensors connect to a datalogger or voltmeter. The sensor
uses a photodiode to yield a mV output. This output
is multiplied by a conversion factor to yield UV radiation
in units of µmol m-2 s-1. The calibration factor is
approximately 6.5 (0.15 mV per µmol m-2 s-1), but is sensor
specific.
Radiation can be
expressed in units of photon flux (µmol m-2 s-1) or energy flux (W m-2). While
UV sensors and meters are calibrated in units of photon
flux, the conversion to energy flux can be performed in the
following spreadsheet:
CONVERSION FACTORS
