D-7/D-7PC
Split Beam UV/vis Spectrophotometer
D-7 split beam UV-Vis spectrophotometer can meet the different analytical testing requirements in organic chemistry, biochemistry, pharmaceutical analysis, food testing, medicine and health, environmental protection, life sciences etc fields of scientific research and production
Function:
1.Photometric measurement, sample can be easily measured absorbance and transmittance at a specified wavelength
2.Quantitative analysis, automatically build standard curve.
3. Dynamic testing, enzyme kinetics reaction rate.
4.USB data interface with online dedicated PC workstation, with more powerful function and data processing capabilities.
Performance feature
1.Standard automatic 4-position cell holder, optional seven-position or 16-position cell holder
2.Light source correction mechanism, the light source will be locating the best position when self-testing each time so that it can fix the offset focus position possibly caused by vibration during the transportation and the user don’t have to debugging light source after change it
3.With excellent structural design and precise split beam optical system, configurations of the host and software control
4.The key devices are made of imported components, which ensure the performance with high reliability
5.Open sample chamber design, a variety of optional accessories suitable for different applications, such as reflection sample holder, solid sample holder, water bath and auto sampler.
Specifications：
| (Models) | D-7 | D-7PC |
| (Operation mode) | Host operating | Host or PC operating with |
| on-line software | ||
| Wavelength range | 190 - 1100nm | |
| Spectral | 1.8nm or 4nm optional | |
| bandwidth | ||
| Optical system | Split beam, Czerny-Turner; Grating | |
| 1200line/mm | ||
| Wavelength | ±0.5nm | |
| Accuracy | ||
| Wavelength | ±0.2nm | |
| Repeatability | ||
| Wavelength | 0.1nm | |
| Resolution | ||
| Photometric Range | -0.3 to 3A ; 0-200%T; -9999 to 9999C | |
| Photometric | ±0.002A(0～0.5A) | |
| Accuracy | ±0.004A(0.5～1A) | |
| ±0.008A(1～2A) | ||
| ±0.3%T(0～100%T) | ||
| Photometric | ±0.001A(0～0.5A) | |
| Repeatability | ±0.002A(0.5～1A) | |
| ±0.004A(1～2A) | ||
| ±0.15%T(0～100%T) | ||
| Stray light | ≤ 0.05%T （220 nm，NaI；340 nm，NaNO2） | |
| Baseline Flatness | ±0.002A（under PC on-line operating） | |
| Stability | ±0.001A/hr @500nm ,0A | |
| Data output | 128×64 array graphic LCD | |
| Size | 470×390×225 | |
| Weight | 20kg | |
