8mm measurement aperture 45/0 handheld spectrophotometer ns800 3nh
colorimeter for faric color difference
Based on large integrating sphere theory, NS800 portable
spectrophotometer adopts 45/0 optical structure with 8mm aperture
measurement. It is much more precise and stable than any other
colorimeter model.
Our 3nh brand portable spectrophotometer colorimeter can specify
using a universla color language and ensure suppliers are quality
controlled and color managed. Plus, our SQC8 software for free make
controlling color fast and easy.
Features:
1. Aesthetic design perfectly combined with ergonomics structure.
2. 45/0 geometrical optics structure, comply with CIE, ISO, ASTM,
DIN standard.
3. 3.5 inch large capacitive touch screen.
4. Two standard observer perspectives, multiple light sources
modes, a variety of color systems.
5. The repeatability ΔE*ab is within 0.04, the errors between each
instrument ΔE* ab is less than 0.2.
6. Large capacity storage, can save more than 10000 data.
7. PC software with powerful extension functions.
8. High hardware configuration with a number of innovative
technologies.
9. Oversized integrating sphere, more effective homogenization ray
of lights and precise measurement.
10. 15° oblique angle screen, more in line with the human eye
observation.
Specification
| Model | NS800 |
| Illumination/observation system | 45/0 method (45 ring-shaped illumination, vertical viewing)
Comply with CIE No.15,GB/T 3978. |
| Integrating sphere Size | Φ58mm |
| Light Source | combined LED sources |
| Sensor | Silicon photodiodearray |
| Wavelength range | 400~700nm |
| Wavelength pitch | 10nm |
| Reflectance range | 0~100% |
| Measuring Aperture | Φ8mm |
| Color Space | CIE LAB,XYZ,Yxy,LCh,CIE LUV |
| Color difference Formula | ΔE*ab,ΔE*uv,ΔE*94,ΔE*cmc(2:1),ΔE*cmc(1:1),ΔE*00
v |
| Other Chromaticity Data | WI(ASTM E313,CIE/ISO,AATCC,Hunter),
YI(ASTM D1925,ASTM 313),
TI(ASTM E313,CIE/ISO),
Metamerism Index (Mt)
Colour Stain, Color Fastness |
| Observer | 2°/10° |
| Illuminant | D65,A,C,D50,D55,D75,F2,F6,F7,F8,F10,F11,F12 |
| Display Data | Spectral Value/Graph, Colorimetric Value, Color Difference
Value/Graph, PASS/FAIL Result, Color Offset, Color Simulation |
| Measurement Time | 1.5s |
| Repeatability | Spectral Reflectance: standard deviation within 0.1%(400~700nm:
within 0.2%)
Colorimetric Value: Standard deviation within DeltaE*ab 0.04
(Measurement conditions: white calibration plate measured 30 times
at 5 seconds intervals after white calibration was performed.) |
| Inter Instrument Agreement | Within DeltaE*ab 0.2 (Average for 12 BCRA Series II color tiles) |
| Dimension | (L*W*H)90*77*230mm |
| Weight | 600g |
| Battery | Li-ion battery. 5000 times within 8 hours. |
| Lamp Life | 5 years, more than 1.6 million measurements |
| Display Screen | TFT 3.5inch, Capacitive Touch Screen |
| Interface | USB/RS-232 |
| Data Memory | 1000 Standards, 10000 Samples |
| Operating Temperature | 0~40°C(32~104°F) |
| Storage temperature | -20~50°C(-4~122°F) |
| Standard Accessory | Power Adapter, Li-ion Battery, Operating Instruction, CD-ROM
(containing management software), Data Line, White and Black
Calibration Cavity, Protective Cover and Wrist Strap |
| Optional Accessory | Micro Printer, Powder Test Box |
| Notes | The specifications are subject to change without notice. |
Applications:
NS800 portable spectrophotometer is widely used in plastic,
electronic, painting, coating, ink, textile, garment, printing and
dyeing, food, medical, cosmetic, industries, scientific research
institutes, schools and laboratories. It can measure reflectance
spectrum and other color index precisely. NS800 portable
spectrophotometer not only can help to perform color matching and
color management studies, but also can control product quality
management accurately. The instrument is equipped with high-end
color management software which can connect PC to achieve more
extension functions.
Color Space
CIE LAB
-L(Lightness)-0 is black,100 is white
-a(Red-Green)-positive values are red; negative values are green
and 0 is neutral
-b(Blue-Yellow)-positive values are yellow;negative values are blue
abd 0 is neutral
CIE LCH
L: Lightness,value is the same in each scale C:Chroma H:Hue Angle
dE Total Color difference
Delta-E is a measurement used to indicate how much a color deviates
from an accepted standards.The higher the dE, the more inaccurate
the color.
What is CIE LAB?
CIE L*a*b* (CIELAB) is the most complete color space specified by
the International Commission on Illumination (French Commission
internationale de l'éclairage, hence its CIE initialism). It
describes all the colors visible to the human eye and was created
to serve as a device-independent model to be used as a reference.
The L*a*b* color space is used when graphics for print have to be
converted from RGB to CMYK, as the L*a*b* gamut includes both the
RGB and CMYK gamut. Also it is used as an interchange format
between different devices as for its device independency. The space
itself is a three-dimensional Real number space, that contains an
infinite possible representations of colors. However, in practice,
the space is usually mapped onto a three-dimensional integer space
for device-independent digital representation, and for these
reasons, the L*, a*, and b* values are usually absolute, with a
pre-defined range.
What is Whiteness?
In colorimeter, whiteness is the degree to which a surface is
white. An example of its use might be to quantitatively compare two
pieces of paper which appear white viewed individually, but not
when juxtaposed.
The International Commission on Illumination describes it in the
following terms:
To promote uniformity of practice in the evaluation of whiteness of
surface colors, it is recommended that the formula for whiteness,
W2 or W10, and for tint, Tw,2 or Tw,10, given below, be used for
comparisons of the whiteness of samples evaluated for CIE standard
illuminant D65. The application of the formulae is restricted to
samples that are called "white" commercially, that do not differ
much in color, and that are measured on the same instrument at
nearly the same time. Within these restrictions, the formula
provide relative, but not absolute, evaluations of whiteness, that
are adequate for commercial use, when employing measuring
instruments having suitable modern and commercially available
facilities.
