43
5.3 Troubleshooting
In case of system failure or stuck (screen gets locked) please
press and hold the power key for 3 seconds to shut down this
product.
Confirm the condion aer re-starng; if the fault sll cannot be
eliminated, follow the instrucons in the figure below to re-set
this machine. Open the dust-proof cover and insert a thin pencil
vercally into the re-set buon to re-set this machine.
1.
2.
DO NOT use sharp point objects with diameter less than 1mm
(e.g., paper clip and ball pen) to press the key as it may lead to
board circuit inducon or damage and failure to this product.
DO NOT use pencils with broken point to press the key as the
pigment core may jam the key for reset or lead to damage and
failure to this product.
Press the hold down power buon lightly for 3 seconds to
power off.
1
2
If the fault cannot be eliminated,
press the re-set buon.
6.1 General Attributes
44
Abbreviation
CCT
The color radiated by a black-body radiator under different temperatures.
CCT has the color that is the closest to the ideal black-body radiator.
CRI (Ra)
The average value of R1 ~ R8, where R1 ~ R8 represent the value of eight
standard colors as defined by Commission International de l'Eclairage (CIE).
A CRI value of 100 indicates the best quality of light for rendering color
appearance, while a value of 0 indicates the worst quality of light for
rendering color appearance.
R1, R2, ... , R15
Represents the quality of the light source with the indexes corresponding to
15 standard colors, including: R1: light grey-red; R2: dark grey-yellow; R3:
saturated yellow-green; R4: middle yellow-green; R5: light yellow-green; R6:
light blue; R7: light purple-blue; R8: light red-purple; R9: saturated red; R10:
saturated yellow; R11: saturated green; R12: saturated blue; R13: white skin
color; R14: leaf green; and R15: yellow skin color.
Lux
Light flux received by each unit area.
λp
Wavelength with the highest intensity in the measured spectrum.
λpV
Intensity of the peak wavelength in the measured spectrum.
λd
Used to express the color of the measured light. May be hybridized by the
spectrum color of the wavelength and the standard illuminant E(x, y = 0.333,
0.333).
I-Time
Integration time measured by the spectrometer.
x, y
Light color with 2-dimensional plane coordinates (x, y) as defined in CIE
Chromaticity Chart CIE1931.
u',v'
Light color with 2-dimensional plane coordinates (u', v') as defined in CIE
Chromaticity Chart CIE1976.
Full Name
Correlated Color Temperature
Color Rendering Index
Color Rendering Index Varieties
Illuminance
Peak Wavelength
Peak Wavelength Value
Dominant Wavelength
Integration Time
CIE1931 Chromaticity Chart Color Coordinates
CIE1976 Color Coordinate
Unit
K
lx
nm
mW/m
2
nm
us
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