The instrument is the bench-top spectrophotometer with excellent repeatability, which is with auto calibration function to guarantee the short term and long-term repeatability even after drastic changes in the environment.
Advanced automatic calibration technology greatly improves long-term repeatability of instruments. Under constant temperature, the dE*ab of day 1 and day 30 can still reach 0.015. At any temperature change from 0℃ to 40℃, dE*ab can reach less than 0.1.
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Features:
1. High precision automatic calibration, excellent long-term repeatability, ensure excellent measurement repeatability even after environment changes.
2. It has two lamps: pulsed xenon and LED.
3. 24 kinds of illuminants and more than 40 measurement indices.
4. Temperature and humidity compensation function.
5. 7-inch touch screen, Android operate system.
6. Dual optical paths spectrum analysis technology.
7. Support SCI+SCE simultaneous rapid measurement.
Technical Parameters:
| Model | BK-GS821 |
| Optical Geometry | Reflectance: d/8(Diffused illumination, 8-degree viewing)
Simultaneous measurement of SCI/SCE, conform to CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO7724/1, DIN5033 Teil7, JIS Z8722 condition C, ASTM E1164, ASTM-D1003-07 Transmittance d/0(Diffused illumination, 0-degree viewing) |
| Integrating Sphere Size | 152mm |
| Light Source | Pulse Xenon lamp and LED lamp |
| Spectrophotometric Mode | Concave grating |
| Sensor | Silicon photodiode array |
| Wavelength Range | 360~780nm |
| Wavelength Interval | 10nm |
| Measured Reflectance Range | 0~200%, resolution 0.01% |
| Measuring Aperture | Reflectance: XLAV Φ25.4mm/Φ30mm, LAV Φ15mm/Φ18mm,
MAV Φ8mm/Φ11mm, SAV Φ3mm/Φ6mm Users can customize the caliber, automatic identification of caliber switching Transmittance: Φ17mm/Φ25mm |
| Color Space | CIE LAB, CIE LUV, LCh, Hunter Lab, Yxy, XYZ, Musell, s-RGB, βxy |
| Color Difference Formula | ΔE*ab, ΔE*CH, ΔE*uv, ΔE*cmc, ΔE*94, ΔE*00, ΔEab(Hunter), 555 color classification |
| Other Colorimetric Index | WI(ASTM E313-00, ASTM E313-73, CIE, ISO2470/R457, AATCC, Hunter, Taube Berger, Stensby), YI(ASTM D1925, ASTM E313-00, ASTM E313-73), Tint(ASTM E313-00), Metamerism index milm, stain fastness, color fastness, ISO brightness, R457, A density, T density, E density, M Density, APHA/Pt-Co/Hazen, Gardner, Saybolt, ASTM color, Haze, Total Transmittance, Opacity, Color Strength |
| Observer Angle | 2° and 10° |
| Illuminant | A, B, C, D50, D55, D65, D75, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, CWF, U30, U35, DLF, NBF, TL83, TL84, ID50, ID65, LED-B1, LED-B2, LED-B3, LED-B4, LED-B5, LED-BH1, LED-RGB1, LED-V1, LED-V2 |
| Displayed Data | Spectral data, spectral graph, chromaticity data, color difference data, color difference graph, pass/fail judgment, simulated color, color evaluation, haze, liquid chromaticity, color bias |
| Measuring Time | Single mode<2s |
| Repeatability | ΔE*ab≤0.015
Spectral reflectance/transmittance≤0.1% |
| Inter-instrument Error | XLAV ΔE*ab 0.2 |
| Display | 7-inch capacitive touch screen |
| Spectral Resolution | 1.6nm |
| UV Measurement | Including UV, 400nm cutoff, 420nm cutoff, 460nm cutoff |
| Transmission Measurement Specification | Sample height and thickness: unlimited height, thickness≤50mm |
| Long Term Repeatability | XLAV chromaticity value: standard deviation ΔE*ab within 0.015(Any temperature change at 20°C±10°C, measure the white calibration plate every hour within 24 hours) |
| Data Storage | 8 GB |
| Language | Simplified Chinese, English, Traditional Chinese, Russian, Spanish, Portuguese, Japanese, Thai, Korean, German, French, Polish |
| Operation
System |
Android |
| Operating Temperature&Humidity Range | 5~40℃(40~104F), relative humidity 80%(at 35℃) no condensation |
| Storage Temperature&Humidity Range | -20~45℃(-4~113F), relative humidity 80%(at 35℃) no condensation |
| Standard Accessories | Power adapter, data cable, transmission fixture, USB flash disk, Black cavity, white board, green board, 30mm aperture, 18mm aperture , 11mm aperture , 6mm aperture, support table, colorimetric dish, damping handle |
| Optional Accessories | Heating Fixture for Transmittance, Vertical Support and Pneumatic ram for downward measurement, Reflectance fixture for small size sample, Reflectance Glass Cell Support, Corrosion-Resistant Protective Plate(non-removable), Sample Holder for Fiber, Film Fixture, Transmittance Fixture for Small Aperture, Trolley Case, European Standard Plug, American Standard Plug |
| Interface | RS-232, USB, USB-B |
| Other Function | 1. Camera to view measurement area
2. Support horizontal,vertical and downward measurement method (need optional accessories to support for downward measurement) 3. Auto humidity and temperature compensation function |
| Power Supply | AC100~240V, 50/60Hz, DC regulated power supply |
| Packing Size | 450*570*470mm |
| Gross Weight | 16kg |
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