Economical UV-Vis Spectrophotometer with Full Standalone Functionality

The Unico SQ2800 provides core functionality for standard UV-Vis applications, including wavelength scanning, kinetics, multi-wavelength, and standard curve capabilities. It is engineered for users who need dependable photometric performance at an accessible price point. The large adjustable-contrast LCD and robust optical platform are ideal for academic, quality control, and industrial settings.

Features and Benefits

Essential Photometric Performance

• 4 nm Bandwidth: Fixed resolution ideal for general UV-Vis assays.
• 1200 Lines/mm Grating Monochromator: Provides accurate wavelength selection.
• Wavelength Range 190–1100 nm: Enables UV and visible analysis from nucleic acids to colorimetric tests.

Expanded Standalone Functionality

• Built-In Operating Modes: Scanning, kinetics, multi-wavelength, and standard curve functions.
• Internal Memory: Saves methods and results directly on the device for quick retrieval.
• Auto System Check: Performs self-diagnostics at startup for consistent performance.

User Interface and Connectivity

• Angled LCD Screen (320×240): High-contrast display with adjustable viewing angle.
• Keypad Navigation: Simple and intuitive controls with multi-function buttons.
• USB Port: Allows PC connection with optional software for expanded data analysis and export.

Flexible Sample Handling

• 4-Place Cell Holder: Accommodates four 10 mm square cuvettes, improving throughput.
• Large Sample Compartment: Supports optional accessories like sipper and Peltier systems.

Included Accessories

• 2 Quartz Cuvettes (10 mm) – For UV-range sample analysis.
• 4 Glass Cuvettes (10 mm) – For visible-range applications.
• Dust Cover and User Manual – Protects the unit and simplifies setup.

Product Specifications

Optical and Measurement System

• Wavelength Range: 190–1100 nm – Suitable for full-spectrum absorbance studies.
• Spectral Bandwidth: 4 nm – Fixed, general-purpose configuration.
• Monochromator: Single beam Littrow design, 1200 lines/mm grating.
• Wavelength Accuracy: ±0.8 nm
• Wavelength Repeatability: ±0.5 nm
• Photometric Range: 0–200% T, –0.3 to 3.0 A
• Photometric Accuracy: ±0.5% T
• Baseline Flatness: ±0.004 A
• Stability: <0.002 A/h at 500 nm
• Stray Light: <0.15% T at 220 & 340 nm

Detection and Illumination

• Detector Type: Solid-state silicon photodiode
• Light Sources: Deuterium lamp (UV), tungsten-halogen lamp (visible)

Display and Interface

• Display: 320×240 pixel adjustable LCD – Enhanced comfort viewing
• Controls: Integrated keypad – No PC required
• Connectivity: USB and parallel ports – For data backup and optional software control

Sample Handling

• Cuvette Holder: 4-position, for 10 mm square cuvettes
• Included Cuvettes: 2 quartz, 4 glass
• Sample Compartment: Compatible with optional accessories

Physical Specifications

• Instrument Dimensions: 21.7 in (L) × 16.5 in (W) × 10.6 in (H) | 550 × 420 × 270 mm
• Net Weight: 44 lbs (20 kg)
• Shipping Dimensions: 25.6 in (L) × 21.3 in (W) × 15.4 in (H) | 650 × 540 × 390 mm
• Shipping Weight: 53 lbs (24 kg)
• Voltage: 110V preset

Why Choose the Unico SQ2800 Over Other UV-Vis Models?

The Unico SQ2800 stands out as a dependable and budget-conscious solution for general laboratory spectrophotometry. Its intuitive design, full-featured standalone functionality, and accessory compatibility make it ideal for laboratories that require efficiency without sacrificing performance.

• Fixed 4 nm bandwidth for core UV-Vis assays
• Standalone scanning and kinetics modes built-in
• Includes quartz and glass cuvettes for immediate use
• Compact size with expandable accessory options
• Ideal for education, QC, and routine laboratory use

Manuals and Troubleshooting Guides

• Unico SQ2800 UV-Vis Spectrophotometer – User's Guide
• Unico SQ2800 UV-Vis Spectrophotometer – Catalog

Frequently Asked Questions (FAQs)

What functions are included in the Unico SQ2800?

The Unico SQ2800 includes scanning, kinetics, standard curve, and multi-wavelength modes.

What cuvettes are included with the instrument?

It includes 2 quartz cuvettes and 4 glass cuvettes, all standard 10 mm square.

Is the Unico SQ2800 suitable for UV and visible light analysis?

Yes, it covers 190–1100 nm, supporting both UV and visible spectrum applications.

Does the instrument require a PC to operate?

No, the Unico SQ2800 operates independently with an LCD interface. PC connectivity is optional via USB.

Can I use accessories like a sipper or Peltier unit?

Yes, the large sample compartment supports optional accessories such as a peristaltic sipper and Peltier controller.