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| Product Name | YUEFENG 752N UV-Visible SpectroPhotometer | YUEFENG 754 UV-Visible SpectroPhotometer |
| Product Price | $670.00 | $816.00 |
| Details | Details | |
| Model comparison | ||
| Spectral Type | UV-Vis | UV-Vis |
| Optical Path | Single-Beam | Single-Beam |
| Dispersion | Grating | Grating |
| Detection | Scanning | |
| Light Source | Tungsten Deuterium | Tungsten Deuterium |
| Wavelength | 200-1000nm | 200-1000nm |
| Accuracy | ≤2nm | ≤2nm |
| Bandwidth | 2-4nm | 2-4nm |
| Detector | ||
| Stray Light | ≤0.5%T | |
| Parameter comparison | ||
| Optical inspection system | Single beam of light, 1200 Diffraction gratings | Aberration (1200L/mm Grating) |
| Light spectrum Bandwidth | 4nm | 4nm |
| Wavelength Range | 200m~960nm | 195m~1000nm |
| Wavelength Precision | ±2nm | ±2nm |
| Wavelength Repeatability | ≤1.0nm | ≤1.0nm |
| Photometric Range | 0~ 100% (T), -0.050~ 3.000 (A) [Excess allowed] | 0~200.0%(T),0~1.999(A) |
| Photometric Precision | ±1.0%(T) | ±0.5%(T) |
| Luminosity Repeatability | ≤0.5%(T) | ≤0.2%(T) |
| stray light | ≤0.5%(220nm，260nm) | ≤0.3%(220nm，360nm) |
| Operating Mode | Absorption, concentration factor, direct reading of concentration | Absorption, concentration factor, direct reading of concentration |
| printout | RS232 printing interface | serial port |
| Illuminant | Deuterium lamp, tungsten halogen lamp | Deuterium lamp, tungsten halogen lamp |
| Set Range | 0~ 9999 (concentration value or concentration factor), [0 invalid] | |
| Options | Bright thermal printer | |
