Description
Overview
GAOTek digital color difference meter uses the principle of combination LED precision spectroscopy, separates the light according to a certain wavelength interval, and adopts groups of sensor array to perform sensitive analysis. This spectrophotometer with higher accuracy is very sensitive to any colors. It not only can measure Lab value and delta E value accurately, but also can display spectral reflectance curve which can realize color matching function and calculate the real parameters of various color formulas. In the R and D process, scientists and engineers measured various color samples from dark to light, white to black, and other standard color boards provided by ISO (International Standardization Organization). The parameters of test results are integrating with international standards. This also analyzed the parameters from Japan, American and Germany spectrophotometers. The differences of Lab absolute value between them are within ±1.5. Compared the Lab value between this and Japan spectrophotometer, when measuring any color objects, the biggest Lab difference is within ±1.0. This is a breakthrough of this high technology which realizes to be fully compatible with international market.Â
Features
- Aesthetic design perfectly combined with ergonomics structureÂ
- 45 or 0 geometrical optics structureÂ
- Comply with CIE, ISO, ASTM, DIN standardÂ
- 3.5 in (8.89 cm) large capacitive touch screenÂ
- Two standard observer perspectivesÂ
- Multiple light sources modes, a variety of color systemsÂ
- The repeatability ΔE x ab is within 0.04Â
- The errors between each instrument ΔE x ab are less than 0.2Â
- Large capacity storage, can save more than 10000 dataÂ
- PC software with powerful extension functionsÂ
- High hardware configuration with several innovative technologiesÂ
- Oversized integrating sphere More effective homogenization ray of lights and precise measurementÂ
- 15° oblique angle screen, more in line with the human eye observationÂ
Technical Specifications
|  Illumination or observation system |  45 or 0 method (45 ring-shaped illumination, vertical viewing), Comply with CIE No.15, GB or T 3978 |
|  Integrating sphere Size | 2.2 in (Φ 58 mm) |
|  Light Source | combined LED sources |
|  Sensor | Silicon photodiode array |
|  Wavelength range | 400 nm to 700 nm |
|  Wavelength interval | 10 nm |
|  Reflectance range | 0 % to 200 % |
|  Measuring Aperture | 0.31 in (Φ 8 mm) |
|  Color Space | CIE LAB, XYZ, Yxy, LCh, CIE LUV |
|  Color difference Formula | ΔE x ab, ΔE x uv, ΔE x 94, ΔE x cmc (2 1), ΔE x cmc (1 1), ΔE x 00 |
|  Other Chromaticity Data | WI (ASTM E313,CIE or ISO, AATCC, Hunter), YI (ASTM D1925, ASTM  313), TI (ASTM E313, CIE or ISO), Metamerism Index (Mt), Color Stain, Color Fastness |
|  Observer |  2° or 10° |
|  Illuminant |  D65, A, C, D50, D55, D75, F2, F6, F7, F8, F10, F11, F12 |
|  Display Data |  Spectral Value or Graph, Colorimetric Value, Color Difference Value or Graph, PASS or FAIL Result, Color Offset, Color Simulation   |
|  Measurement Time |  1.5 sec |
|  Repeatability |  Spectral Reflectance, standard deviation within 0.1 % (400 nm to 700 nm, within 0.2 %) |
|  Display Screen |  TFT 3.5 in (8.89 cm), Capacitive Touch Screen |
|  Inter Instrument Agreement |  Within Delta E x ab 0.2 (Average for 12 BCRA Series II color tiles) |
|  Battery |  Li-ion battery. 5000 times within 8 hrs |
|  Lamp Life |  5 years, more than 1.6 million measurements |
|  Interface |  USB or RS-232 |
|  Data Memory |  1000 Standards, 15000 Samples |
|  Operating Temperature | 32 ℉ to 104 °F (0 ℃ to 40 ℃) |
|  Storage temperature | -4 ℉ to 122 °F (-20 ℃ to 50 ℃)   |
|  Dimension | 3.5 in x 3 in x 9 in (90 mm x 77 mm x 230 mm) |
|  Weight | 21.1 oz (600 g) |