Need help?Do you have a question about the Unico SQ Series and is the answer not in the manual?
General| Model | SQ Series |
|---|---|
| Wavelength Range | 190-1100 nm |
| Spectral Bandwidth | 1.8 nm |
| Wavelength Accuracy | ±0.5 nm |
| Wavelength Repeatability | ≤0.1nm (SQ-2800), ≤0.1nm (SQ-4800), ≤0.1nm (SQ-9800) |
| Photometric Accuracy | ±0.002 A (0-0.5 A) |
| Stray Light | <0.05% at 220 nm and 340 nm |
| Stability | ±0.0005 A/hour at 500 nm |
| Display | LCD |
| Light Source | Deuterium and Tungsten Halogen lamps |
| Detector | Silicon Photodiode |
| Data Output | USB |
| Power Requirements | AC 110/220V, 50/60Hz (SQ-2800), AC 110/220V, 50/60Hz (SQ-4800), AC 110/220V, 50/60Hz (SQ-9800) |
| Printer Port | Parallel Port (SQ-2800), Parallel Port (SQ-4800), Parallel Port (SQ-9800) |
Details internal components and their locations for the UV-2800 model.
Details internal components and their locations for UV-2802 and UV-2802PC models.
Details internal components and their locations for the UV-3802 model.
Details internal components and their locations for the UV-4802 model.
Explains how light enters the spectrophotometer and is focused at the entrance slit.
Describes how light is spectrally dispersed by the analytical grating after entering the instrument.
Details how light exits the monochromator and proceeds to the photodetector via different paths.
Outlines the power supply architecture, including transformers, PCBs, and voltage outputs.
Explains how the instrument's functions are controlled and driven by CPU, motors, and other components.
Describes how light signals are sampled, amplified, converted to digital data, and processed.
Troubleshooting guide for issues related to the tungsten lamp not turning on.
Troubleshooting guide for issues when the deuterium lamp fails to operate.
Addresses troubleshooting for memory check failures in the instrument.
Provides troubleshooting steps for issues related to printer connectivity or function.
Guides users through diagnosing filter positioning or function errors.
Details troubleshooting procedures for light source positioning errors.
Offers solutions for failures related to the auto-cell holder positioning.
Provides troubleshooting steps for slit positioning issues on certain models.
Addresses issues encountered during the 656.1nm wavelength search.
Explains how to handle "Please restart" warnings displayed by the instrument.
Provides instructions for addressing "Battery low" warnings.
Outlines steps to resolve failures when saving or loading instrument files.
Offers troubleshooting for extended dark current acquisition times.
Guides users on how to fix issues where the LCD display has no backlight.
Provides solutions for when the LCD backlight is on but the display shows nothing.
Explains how to resolve "Energy low" warnings that appear after blanking.
Details troubleshooting steps for "Energy too low" warnings.
Addresses specific issues with missing DC +12V on a particular PCB.
Specifies optimal environmental conditions for instrument operation and longevity.
Provides detailed instructions for safely replacing the tungsten lamp.
Offers a step-by-step guide for replacing the deuterium lamp.
Explains the procedure for replacing the internal memory battery.
Details the process for updating the instrument's firmware.
Outlines procedures for verifying spectrophotometer performance: wavelength, stray light, absorbance, dark current, and energy.
Lists part numbers and PCB references for the UV-2800 model.
Lists part numbers and PCB references for UV-2802 and UV-2802PC models.
Lists part numbers and PCB references for UV-2802S and UV-2802PCS models.
Lists part numbers and PCB references for the UV-3802 model.
Lists part numbers and PCB references for the UV-4802 model.
To Next Page
