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- Weight: 44.0 lb
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MFR:
Unico
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MPN: SQ2800
- Phone: (732) 274-1155
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Frequently asked questions
What is the full spectral range?
The Unico SpectroQuest SQ2800 offers a broad UV-Visible spectral range for comprehensive laboratory analysis. The instrument measures across the following span:<ul><li>Wavelength Range: 190 nm to 1100 nm</li></ul>This extensive range ensures high versatility, supporting general-purpose measurements and specialized analytical methods, including the built-in function for DNA/Protein analysis.
What high-quality light source powers the SQ2800?
The SpectroQuest SQ2800 utilizes a powerful dual light source system to ensure accurate readings across the entire spectrum:
- A Deuterium lamp for the Ultraviolet (UV) region.
- A Tungsten halogen lamp for the Visible (Vis) and Near-Infrared regions.
This setup allows the instrument to perform reliable measurements across its broad spectral range of 190 nm to 1100 nm.
Does it include comprehensive built-in software?
Yes, the Unico SpectroQuest SQ2800 is a stand-alone instrument featuring comprehensive built-in software for versatile laboratory applications. This software capability is one of the top selling points, allowing the user to perform complex analyses without requiring an external PC.
Included analytical modes are:
- T/A/Conc (Transmittance, Absorbance, Concentration)
- Standard Curve creation
- Kinetics studies
- Multi-Wavelength analysis
- Scanning capabilities
- DNA/Protein measurement
All operations are performed via the user-friendly interface and large, angled LCD screen.
Is the SQ2800 equipped with a robust silicon photodiode detector?
Yes, the SpectroQuest SQ2800 is equipped with a solid silicon photodiode detector. This component is crucial for ensuring the reliable and precise photometric readout across the unit’s entire broad spectral range, which spans from 190 nm to 1100 nm (UV-Visible).
Does it feature a precise 4 nm bandwidth?
Yes, the Unico SpectroQuest SQ2800 is engineered with a fixed spectral bandwidth (slit width) of 4 nm.
This fixed setting is standard for general-purpose UV-Visible spectrophotometry, ensuring reliable and consistent measurements throughout the instrument’s extensive operational wavelength range of 190 nm to 1100 nm.
Does the SpectroQuest SQ2800 include all necessary accessories?
Yes, the Unico SpectroQuest SQ2800 is designed as an economic, stand-alone instrument and ships as a complete package, ready for immediate analytical use across its broad 190 nm to 1100 nm spectral range.
The package includes essential accessories to start your measurements right away:
- 4-Position Cell Holder
- Four optical glass cuvettes (for visible measurements)
- Two quartz cuvettes (necessary for UV range measurements)
- User Manual
- Dust Cover
Additionally, the SQ2800 features comprehensive built-in software accessed via the LCD screen, minimizing the need for an external computer. This software supports key analytical functions, including T/A/Conc, Standard Curve, Kinetics, Multi-Wavelength, Scanning, and specialized DNA/Protein analysis modes. For data output, the unit includes a USB Port and a Parallel Port.
What is the unit weight of the spectrophotometer?
The Unico SpectroQuest SQ2800 UV-Visible Spectrophotometer weighs 44 lbs (20 kg).
Its unit dimensions are 550 mm (L) x 420 mm (W) x 270 mm (H). This robust design helps ensure stability and reliable performance during laboratory measurements.
What is the specified wavelength accuracy?
The Unico SpectroQuest SQ2800 provides reliable precision for general-purpose UV-Visible measurements. The instrument’s key specifications regarding wavelength performance are:
- Wavelength Accuracy: The specified measurement accuracy is ± 0.8 nm.
- Wavelength Repeatability: The instrument demonstrates excellent repeatability, specified at ± 0.5 nm.
For operational convenience and consistency, the spectrophotometer performs an automatic wavelength calibration when the unit is started.
Does the unit support multiple voltage options?
Yes, the Unico SpectroQuest SQ2800 offers flexible power compatibility for global use. The unit is designed with switchable power requirements to accommodate standard laboratory voltages and frequencies:
- 115 V / 60 Hz
- 230 V / 50 Hz
When ordering, you can select the variant that is preset to either 110 V or 220 V, ensuring immediate compatibility with your local power supply.
What specialized software functions are included?
The Unico SpectroQuest SQ2800 is designed for standalone operation and features comprehensive built-in software that covers a wide range of analytical tasks. The integrated software includes the following specialized measurement modes:
- T/A/Conc: Measures Transmittance, Absorbance, and Concentration.
- Standard Curve: For generating calibration curves for quantitative analysis.
- Kinetics: Allows for monitoring and analysis of reaction rates over time.
- Multi-Wavelength: Facilitates analysis at multiple specified wavelengths.
- Scanning: Provides full spectral scanning capability.
- DNA/Protein Analysis: Dedicated mode for biophotometric calculations, making it suitable for basic biochemistry applications.

Unico SpectroQuest SQ2800 UV-Visible ...