7
1000033245-00
4. Instructions for use
Important
1. When preparing an AC adapter on your own, use a transformer type
unit that can stably supply 3.15 V/50 mA.
If a switching type AC adapter is used, the unit may be affected by
noise.
2. When the load is small with respect to the capacity, a voltage that is
higher than the rated voltage is output by the AC adapter that is a cause
of erroneous operation, failure, and breakage of this irradiance meter.
Confirm with data for the adapter to make selection for use.
3. For the polarity of the plug, select a device that has positive on the
center.
4. When using an AC adapter while leaving batteries in the unit, turn the
power supply off before selecting the [power supply select switch].
Changing of the [power supply select switch] with the power supply on
is a cause of error and/or failure.
4-1-3. Setup and Exchange of the Photodetector
Through exchanging the photodetector of the UIT-201, various wavelength ranges of
UV light can be measured.
•
Setup of the photodetector
(1) Check to make sure that the power supply is off.
(2) Insert the connector of the photodetector into the sensor connector of the irradi-
ance meter.
•
Removal of the photodetector
(1) Check to make sure that the power supply is off.
(2) Hold onto the body of the connector for the photodetector and pull it straight
out.
