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Safety Notes
CAUTION
●
At least one minute should be allowed between two consecutive measurements.
If the UIT-θ series is not fully cooled, the subsequent measurement may be disabled.
●
The photodetector contains optical components. Keep and use it at the appropriate temperature
and humidity.In particular, the optical filter performs best in an environment of the specified
temperature and humidity. Outside this environment, the filter cannot perform optimally and
may deteriorate. Always use a desiccator or similar to keep the photodetector at the specified
temperature and humidity.
●
Immediately after using the UIT-θ series, keep it in its storage case and then in a desiccator or
similar to keep the UIT-θ series at the specified temperature and humidity.
●
The optical components of the photodetector may swiftly deteriorate when stored in a high-
humidity environment (70% RH or more). In such cases, they should be calibrated more
frequently than the USHIO calibration cycle (every 6 months).
●
High-intensity UV light will accelerate the deterioration of the optical components in the
photodetector, whereupon the deteriorated photodetector may show lower irradiance values
than expected.
●
When connecting and removing the USB cable, do so carefully; do not jam the connector or yank
the cord.
●
Never expose the UIT-θ series body to any shock or impact, since this may damage the
components and cause the unit to malfunction.
●
Contamination and dirt on the photodetector will cause measurement errors.
Be sure to check the photodetector for contamination and dirt before starting the measurement.
If any are present, wipe them off with dry clean gauze.
●
The UIT-θ series houses a temperature sensor to protect the internal electronic circuit.
When used in a hot environment at a temperature exceeding the permissible operating range,
the UIT-θ series will overheat and cease operation with "TEMP Error." Shut down power to the
UIT-θ series and allow to naturally cool to reset the error.
●
The sensitivity of the photodetector is calibrated by monochromatic and parallel light.
When measuring the irradiance of monochromatic and parallel light, photodetectors of the same
type show the same irradiance value to within ±5% or less.
To measure the irradiance of light of a certain wavelength distribution, see "Specifications"
(Spectroscopic sensitivity characteristics of the photodetector) of these Operating Manuals.
This Spectroscopic sensitivity characteristics is a central value. When measuring the irradiance of
a general light source of a certain wavelength distribution, photodetectors of the same type may
show different irradiance values due to the Spectroscopic sensitivity characteristics.
●
Use alcohol to wipe the UIT-θ series body clean. Do not apply alcohol to the photodetector,
target marks, and their vicinity. Be very careful not to let alcohol infiltrate the UIT-θ series body
through the holes of the photodetector, the rear of its body, and the USB connector hole.
The ingress of alcohol within the UIT-θ series body will cause it to deteriorate and damage its
optical element and internal circuit.Never use organic solvents such as thinner and acetone since
they will damage the external surfaces, optical element, and internal circuit of the UIT-θ series.
●
The equipment shown in this catalog, any products using the equipment or technologies related
to the equipment fall under the category of security control related to freight or technologies
under the provisions of the Foreign Exchange and Foreign Trade Control Law. You must obtain
permission from the Government of Japan before exporting them from Japan.
Int
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IMPORTANT
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Copyright © 2019, USHIO INC. All Rights Reserved.
DOC1050921-03
