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| Product Name | Yoke UV752 spectroPhotoMeter | YUEFENG 770S UV-Visible SpectroPhotometer |
| Product Price | In coming | $2591.00 |
| Details | Details | |
| Model comparison | ||
| Spectral Type | UV-Vis | UV-Vis |
| Optical Path | Single-Beam | Pseudo-Double-Beam |
| Dispersion | Grating | Grating |
| Detection | Scanning | |
| Light Source | Tungsten Deuterium | Tungsten Deuterium |
| Wavelength | 190-1100nm | 190-1100nm |
| Accuracy | ≤2nm | ≤0.5nm |
| Bandwidth | 4-6nm | ≤2nm |
| Detector | ||
| Stray Light | ≤0.5%T | ≤0.2%T |
| Parameter comparison | ||
| Optical inspection system | Eliminate color difference Czerny-Turner (1200L/mm grating) | Proportional double beam of light, 1200/mm Holographic grating |
| wavelength Range | 195-1020nm | |
| Wavelength accuracy | ±2nm | |
| Light spectrum bandwidth | 5nm | |
| Wavelength, repeability | 1nm | |
| stray light | ≤0.3%T | ≤ 0.15% (T) (at 220 nm, as NaI) (at 360 nm, as NaNO2) |
| photometric accuracy | 0.5%T | |
| Luminosity, sexual repeability | 0.2%T | |
| Photometric Range | 0-200%T，-0.301-2.000A | 0.0%(T)~200.0%(T)；-0.301~4.000(A) |
| drift | ≤0.2%T | ≤ 0.0009A/0.5h (2h after startup, 250nm, 500nm) |
| Baseline linearity | ±0.004A/h @500nm | |
| noise | 100%≤0.3%T | |
| stability | ±0.004A/h @500nm | |
| Operating Mode | T,A,C | |
| display Range | 0-200%T, -0.3-2A | |
| display system | 4-Bit LCD LED display | |
| wavelength drive | manual | |
| Printer (interface) | Thermal printer (parallel port) optional | |
| Energy (light source) | Imported tungsten lamp, imported deuterium lamp | |
| net weight | 12Kg | |
| Light switching mode | manual | |
