PV6088-F4E017
37
APPENDIX
○
Principle of calculating spectral reflectance
How to calculate spectral reflectance with the product is described below.
The product measures the strength of spectral reflectance of the reference, whose
reflectance is known (
I
reference
(
λ)) and that of the sample to be measured, whose
reflectance is unknown (
I
sample
(
λ)). Based on the two spectral reflectance values, use the
following formula to calculate the reflectance of the sample under measurement. Therefore,
the measurement value output from the product is not an absolute value but a relative
value against the reference sample.
R
(
)
I
sample
(
)
I
background
(
)
I
reference
(
)
I
background
(
)
R
theory
(
)
)
(
R
: Measured value of the spectral reflectance of the sample
)
(
sample
I
: Strength of spectral reflectance of the measured sample
I
reference
(
)
: Strength of spectral reflectance of the reference
)
(
background
I
: Strength of background
)
(
theory
R
: Theoretical value of the spectral reflectance of the reference
○
Precautions for safe use of the lighting device (lamp house)
Though heavily dependent on the usage conditions (ambient temperature and humidity,
supply voltage, period of lighting, etc.), the useful life of the lighting device (lamp
house) * assumes either short one of for approximately three years
（
In the case of the
use of approximately eight hours a day
）
or approximately 15,000 hours .
*The above statement does not guarantee freedom from failures or repair at no
charge during the service life.
* Depending on the usage conditions, there is a possibility of aging degradation in a
shorter period.
Inspect the lamp house according to
Appendix: Checklist for inspection of the
lighting device (lamp house)
until the lamp house reaches the end of its useful life.
Should any unexpected incident occur (e.g., smoke) during use, turn off the power
immediately and contact the sales representative where you purchased the unit or our
sales department. Regular inspection is recommended, in order to achieve safe use
and reduce downtime.
Summary of Contents for USPM-RUIII Series
Page 42: ...PV6253 F4E016 USPM RU Ver3 21 004 Software Operation Manual...
Page 89: ...10 Help Menu PV6253 F4E016 47 10 Help Menu 10 1 Version menu Displays the version...
Page 92: ...11 About the Calibration Method for Wavelength Direction PV6253 F4E016 50...
Page 113: ...PV9386 F4E005 1 USPM RU RUIII Installation Instructions Ver 3 21...
Page 130: ...PV9386 F4E005 18 4 In the following screen click the Yes button to complete the uninstallation...
