The Unico Scanning Spectrophotometer – SQ-2800 is the most economical general-purpose design in the SpectroQuest line. It is a stand-alone model with a 4nm fixed bandwidth and has all the features that the SpectroQuest line offers for a stand-alone unit.
Features:
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The Unico Scanning Spectrophotometer – SQ-2800 is the most economical general-purpose design in the SpectroQuest line. It is a stand-alone model with a 4nm fixed bandwidth and has all the features that the SpectroQuest line offers for a stand-alone unit. It provides excellent performance for measurements in the range of 190nm to 1100nm. It has a large angled LCD screen with contrast adjustment for comfort viewing. The large sample compartment accommodates a wide range of cell holders and accessories including peristaltic sipper and peltier system.
Optional software for the SQ-2800 makes this instrument very versatile.
Features:
| Optical Specifications | |
| Wavelength Range | 190 – 1100 nm |
| Spectral Bandwidth | 4 nm |
| Monochromator | Single beam Littrow type, grating 1200 lines/mm |
| Wavelength Accuracy | ±0.8 nm |
| Wavelength Repeatability | ±0.5 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 | ±0.5%T |
| Zero Drift | < 0.002A per hour after warm-up |
| Baseline Flatness | ±0.004A |
| Stability | 0.002A/h at 500 nm |
| Stray Light | < 0.15%T |
| Scanning Speed | Hi, Med., Low. Max. 1000 nm/min |
| Physical Characteristics | |
| Standard Sample Holder | 4-position Cell Holder |
| Analogue/Digital Output | Digital, RS232 Serial, Centronics Parallel |
| Dimensions | 550(L) x 420(W) x 270(H) mm |
| Weight | 20 kg / 44 lbs |
| Shipping Dimensions | 650(L) x 540(W) x 390(H) mm |
| Shipping Weight | 24 kg / 53 lbs |
| Power Requirements | 115V/60Hz or 230V/50Hz, switchable |
| Operating Temperature | Room temperature: 22 ±2°C |
| Humidity Range | Less than 85% |
| Safety Certificate | CE |
