Vis Spectrophotometer VS-A21
The Visible Spectrophotometer VS-A21 is a single beam benchtop device with a wavelength range of 325 to 1000 nm and a spectral bandwidth of 2 nm. It features a 7-inch multicolor touch screen with a user-friendly interface. Operating in T, A, C work modes, it utilizes a Czerny-Turner monochromator. With a holographic blazed grating monochromator, it offers high wavelength accuracy, excellent monochromaticity, and minimal stray light. Known for its high accuracy, reproducibility, and measurement stability, this instrument provides reliable and consistent readings.
| Photometry | Single Beam |
| Monochromatic Type | Czerny-Turner |
| Wavelength range | 325 to 1000nm |
| Spectral bandwidth | 2 nm |
| Wavelength Accuracy | ± 2nm |
| Wavelength Repeatability | ≤ 1 nm |
| Focal length | 160 mm |
| Photometric Range | 0 to 100.0 %T 0 to 1.999 A 0 to 1999 C |
| Photometric Accuracy | ± 0.5 % T |
| Photometric Repeatability | ≤ 0.2 % T |
| Detector | Silicon Photocell |
| Grating | 1200 lines/mm |
| Stray light | ≤ 0.1( at 360nm NaNo2 ) |
| Noise | 100%（T）noise≤0.3%(T) ， 0%（T) noise ≤0.2 %(T) |
| Cuvette holder size | 10 mm |
| Dimension | 580 × 460 × 345 mm |
| Power consumption | 120 W |
| Power supply | AC 220V ±22V 50 Hz ±1 Hz |
| Gross weight | 16.5 kg |
- Wavelength range: 330 to 1000 nm
- Spectral bandwidth: 5 nm
- C-T grating monochromator: 1200 lines/mm
- Light source: 20 W, 12 V Tungsten lamp
- 100% Transmittance calibration
- High accuracy with digital wavelength display
Visible spectrophotometers find applications in various fields including quantitative and qualitative analysis, detection of impurities, and determination of functional groups. They are widely utilized across biochemical, environmental, food, medical, petrochemical, and other industries.
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