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1000033245-00
Caution
• The photodetector is formed using optical components; therefore pay attention
to the environment (temperature and humidity).
Especially the optical filter which demonstrates prescribed functionality within
the specified temperature and humidity environment. In conditions outside the
specified environment functionality can not be demonstrated and the element
itself deteriorates.
Store in a location where the environment such as the temperature and humidity
can be controlled such as using a desiccator.
• Do not apply any shock to the UIT-201 unit and the photodetector. Otherwise,
the incorporated devices may be broken or fail to operate properly.
• Use alcohol to clean the UIT-201 unit. Do not use any organic solvent such as
thinner or acetone since it damages the unit body.
• Do not use any photodetector other than ones designated by our company.
Important
• The measurement capability of this irradiance meter is up to "1999"; however,
for cases where light is high power, the linearity of the photodetector worsens.
Depending on the photodetector used, the measurement range may be reduced.
Confirm the measurement range of the photodetector using its operating manual.
• For cases where photodetectors that have an irradiance sensitivity other than
12.0~1500 µA/(W/cm
2
) are read directly, follow the operating manual for the
photodetector to correct the sensitivity.
• A very weak current flows through the UIT-201 unit form the battery even if the
power is off. Remove the battery when not using the unit for a long period of
time.
• If there are particles on the photodetector or if it is dirty it can cause error in the
measurement.
Check to make sure that there are not any particles and that the photodetector is
not dirty. If it is dirty, wipe it with a piece of gauze soaked in alcohol.
Read the following cautions prior to use of the
unit.
Read the following important points prior to
use.
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