The Unico Double Beam Spectrophotometer SQ-4802 is a Double-beam design. It is a stand-alone model with a 1.8 nm fixed bandwidth and has all the features that the SpectroQuest line offers in a stand-alone unit. The two detectors are measuring sample and reference respectively and simultaneously for optimizing measurement accuracy. It provides excellent performance for measurements in the range of 190nm to 1100nm. It is suitable for pharmaceutical, biochemical and clinical lab applications as well as routine applications such as quantitative analyses, kinetics, spectrum scanning, multiple components and DNA/Protein.
Optional software makes this instrument versatile.
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The Unico Double Beam Spectrophotometer SQ-4802 is a Double-beam design. It is a stand-alone model with a 1.8 nm fixed bandwidth and has all the features that the SpectroQuest line offers in a stand-alone unit. The two detectors are measuring sample and reference respectively and simultaneously for optimizing measurement accuracy. It provides excellent performance for measurements in the range of 190nm to 1100nm. It is suitable for pharmaceutical, biochemical and clinical lab applications as well as routine applications such as quantitative analyses, kinetics, spectrum scanning, multiple components and DNA/Protein.
Optional software makes this instrument versatile.
| Optical Specifications | |
| Wavelength Range | 190 – 1100 nm |
| Spectral Bandwidth | 1.8 nm |
| Monochromator | Double beam Littrow type, grating 1200 lines/mm |
| Wavelength Accuracy | ±0.3 nm |
| Wavelength Repeatability | ±0.2 nm |
| Wavelength Calibration | automatic at start |
| Light Source | Tungsten Halogen/Deuterium Lamp |
| Detector | Solid Silicon Photodiode |
| Photometric Readout | 1/4 VGA 320X240 pixels backlit LCD |
| Photometric Range | 0 – 200%T |
| -0.3 – 3.0A | |
| 0 – 9999C | |
| Photometric Accuracy | ±0.3%T |
| Zero Drift | < 0.002A per hour after warm-up |
| Baseline Flatness | ±0.004A |
| Stability | 0.001A/h at 500 nm |
| Stray Light | < 0.15%T |
| Scanning Speed | Hi, Med., Low. Max. 1000 nm/min |
| Physical Characteristics | |
| Standard Sample Holder | Single Cell Holder |
| Analogue/Digital Output | Digital, RS232 Serial, Centronics Parallel |
| Dimensions | 620(L) x 400(W) x 280(H) mm |
| Weight | 24 kg / 53lbs |
| Shipping Dimensions | 720(L) x 525(W) x 370(H) mm |
| Shipping Weight | 28 kg / 62 lbs |
| Power Requirements | 115V/60Hz or 230V/50Hz, switchable |
| Operating Temperature | Room temperature: 22 ±2°C |
| Humidity Range | Less than 85% |
| Safety Certificate | CE |
