Labman
Double Beam UV-Vis Spectrophotometer LMSPUV1900 / 1908 / 1920 / 1928 (190–1100 nm)
Double Beam UV-Vis Spectrophotometer LMSPUV1900 / 1908 / 1920 / 1928 (190–1100 nm)
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The LMSPUV1900 series Double Beam UV-Vis Spectrophotometer is engineered for precise and stable spectrophotometric analysis across the ultraviolet, visible, and near-infrared regions from 190 to 1100 nm. The system uses a dual detector configuration to simultaneously measure sample and reference signals, ensuring high accuracy and improved baseline stability.
The instrument features a double beam optical design with a high-performance grating system, reducing stray light and enhancing measurement reliability. A long optical path design improves resolution and sensitivity, making it suitable for demanding analytical applications.
Built on a rigid die-cast aluminum base, the system ensures mechanical stability and consistent performance over extended usage. The integrated LCD display allows direct visualization of measurement data, curves, and results without requiring external systems.
The spectrophotometer supports multiple analytical modes including wavelength scanning, kinetic studies, multi-wavelength analysis, and DNA/protein testing. Automatic calibration of baseline, wavelength, and dark current ensures optimal performance with minimal manual intervention.
Lamp selection control helps extend the life of deuterium and tungsten lamps, while real-time clock functionality enables proper data logging. Data output is supported via USB connectivity for integration with external systems.
Key Features
Double beam optical system with dual detectors
Wide wavelength range from 190 to 1100 nm
High stability with reduced stray light
Long optical path for improved resolution
Rigid die-cast aluminum optical base
Integrated LCD display for direct result viewing
Automatic baseline and wavelength calibration
Multiple analysis modes including kinetics and DNA/protein
USB data output for PC connectivity
Lamp life optimization with selectable source control
Technical Specifications
| Parameter | LMSPUV1900 | LMSPUV1908 | LMSPUV1920 | LMSPUV1928 |
|---|---|---|---|---|
| Make | LABMAN | LABMAN | LABMAN | LABMAN |
| Optical System | Double Beam (1200 lines/mm grating) | |||
| Detector | Silicon Photodiode | |||
| Wavelength Range | 190–1100 nm | |||
| Bandwidth | 1 nm | 1 nm | Variable (1, 2, 4 nm) | Variable (1, 2, 4 nm) |
| Wavelength Accuracy | ±0.3 nm | |||
| Wavelength Repeatability | ±0.2 nm | |||
| Photometric Range | -0.3–3A, 0–200%T, 0–9999C | |||
| Photometric Accuracy | ±0.3%T | |||
| Photometric Repeatability | 0.2%T | |||
| Stability | ±0.001 Abs/h @ 500 nm | |||
| Baseline Flatness | ±0.001 Abs | |||
| Noise | ±0.001 Abs | |||
| Stray Light | ≤0.05%T (220 nm, 360 nm) | |||
| Light Source | Deuterium Lamp & Tungsten Halogen Lamp | |||
| Display | LCD | |||
| Data Output | USB | |||
| Printer Port | Parallel Port | |||
| Cell Holder | 10 mm (Sample & Reference) | |||
| Power Supply | AC 220V / 50–60Hz | |||
| Dimensions (L×W×H) | ~790 × 585 × 410 mm | |||
| Weight | 35 kg |
Applications
Pharmaceutical and quality control laboratories
Chemical and environmental testing
Biotechnology and life science research
Academic and educational laboratories
Food and beverage analysis
