Product Description
Desktop Spectral Transmittance/Reflectance/Color Difference Tester
1.Product Introduction
The GA-7 Desktop Spectral Transmittance/Reflectance/Color Difference Tester is an instrument usd for testing transmittance, reflectance, color values, and color differences. This instrument complies with the technical requirements of GB2680-1994 and GB/T3979 standards. The equipment comes standard with a control computer and supporting software.
Equipment introduction
This instrument can measure the transmittance and color values of all transparent or semi-transparent flat objects, as well as the reflectance and color values of all transparent or opaque flat objects, and calculate color differences.
System features
- Resistance to ambient light interference
- Capable of continuous long-term operation
- Computer-controlled operation with excellent scalability
- High stability of core system components (e.g., spectrometer and optical fibers are all original imported parts)
Equipment functions
- Capable of outputting spectral transmittance and reflectance in the 380-1100 nm range and displaying spectral curves.
- The computer stores the spectral distributions of D65 and A light sources, and can automatically calculate visible light integral transmittance, visible light integral reflectance, and color values under D65 and A light source environments, with real-time display on the screen.
- Can export spectral transmittance and reflectance curves.
- Can test diffuse reflection and specular reflection of samples.
- Can measure XYZ values, Lab* values, etc., of samples and calculate color differences between different samples.
- The default spectral wavelength interval is 5 nm, and the interval can be adjusted in multiple gears based on a 5 nm base.
- All data are saved in independent files and can be exported to Excel files.
- All test operations are performed via the control computer. Test results can be saved, queried, and printed (printer not included in the standard configuration).
Usage environment
1. Ambient temperature: 0ºC to 40ºC
2. Environmental humidity: <70%
3. Power supply mode: AC220V5A
4. Avoid vibration
Product Parameters
Desktop Spectral Transmittance/Reflectance/Color Difference Tester
2.Product Paramter
Wavelength Range |
380-1100NM |
Spectral Half-Width |
3-5NM |
Wavelength Accuracy |
±0.2NM |
Spectral Measurement Interval |
1NM |
Spectral Storage Interval |
5NM |
Measurement Speed |
0.5~2S adjustable |
Light Source Lifespan |
≥2000 hours |
Measurement Range |
Transmittance: 0 ~ 100% reflectivity: 0 ~ 100% |
Measurement Precision |
0.01% |
Stability |
±0.05% |
Repeatability |
≤0.1% |
Sample Requirements |
Transmission: no more than 150 * 150 mm reflection: any sample size (large sample can only test side) |
Detailed Photos


