Model 2371 EI-DVI UV/VIS Single Beam Spectrophotometer – Advanced Microprocessor Laboratory Analysis System
The Model 2371 EI-DVI UV/VIS Single Beam Spectrophotometer is a high-performance microprocessor-based analytical instrument designed for rapid, accurate, and highly reproducible spectrophotometric analysis across ultraviolet and visible wavelength ranges. Engineered as a robust benchtop laboratory system, this UV-VIS spectrophotometer delivers dependable quantitative and qualitative analysis for pharmaceutical laboratories, research facilities, educational institutions, food testing laboratories, environmental analysis centers, and industrial quality control applications.
Built with advanced solid-state electronics and precision optical engineering, the Model 2371 operates across a wide wavelength range of 200nm to 1000nm, supporting comprehensive UV-visible spectroscopy applications including absorbance, transmittance, concentration analysis, kinetic studies, and standard curve measurements. Its high-performance single beam optical system incorporates a precision diffraction grating with 1200 lines/mm, ensuring exceptional wavelength accuracy, improved spectral purity, and stable analytical performance.
The instrument is designed for enhanced usability and operational convenience through intelligent automation features such as Auto Wavelength Setting, automatic lamp management, and simplified soft-touch membrane key controls. The large 128 × 64 graphical LCD display provides clear visibility of analytical data while also enabling direct on-screen display of standard calibration curves for improved analytical workflow efficiency.
For optimized analytical flexibility, the Model 2371 supports multiple photometric modes including %Transmission, Absorbance, and Concentration analysis. Its highly stable photometric system offers excellent measurement precision with superior wavelength repeatability and low stray light interference, making it ideal for sensitive laboratory testing procedures.
The instrument incorporates both Tungsten and Deuterium lamps for UV and visible spectrum operation. These lamps can be independently switched ON/OFF to extend operational life and reduce maintenance costs. The pre-aligned lamp design further simplifies replacement and maintenance procedures for laboratory users.
Flexible sample handling is supported through the supplied 4-position 10mm cuvette holder, while the large sample compartment can accommodate cuvettes ranging from 5mm to 100mm path length using optional holders. Combined with USB PC connectivity, printer interface support, and optional advanced analytical software for wavelength scanning and DNA/Protein analysis, the Model 2371 UV/VIS Spectrophotometer offers a complete and reliable analytical solution for modern laboratories.
Technical Specifications
| Feature | Details |
|---|---|
| Model | 2371 |
| Brand | EI-DVI / ESICO International |
| Instrument Type | Microprocessor UV/VIS Single Beam Spectrophotometer |
| Optical System | Single Beam, Grating 1200 lines/mm |
| Wavelength Range | 200 – 1000 nm |
| Spectral Bandwidth | 2 nm |
| Wavelength Accuracy | ±0.5 nm |
| Wavelength Repeatability | 0.4 nm |
| Wavelength Resolution | 0.1 nm |
| Photometric Accuracy | ±0.5 %T or 0.003A @ 1A |
| Photometric Range | 0 – 200 %T, -0.3 to 3A, 0 – 9999 Conc. |
| Photometric Modes | %Transmission, Absorbance, Concentration |
| Photometric Stability | ±0.002 A/h @ 500nm |
| Stray Light | <0.3 %T |
| Detector | Silicon Photodiode |
| Display | 128 × 64 Dots Graphical LCD |
| Keyboard | Soft Touch Membrane Keys |
| Light Source | Tungsten & Deuterium Lamps |
| Auto Wavelength Setting | Yes |
| Standard Sample Holder | 4 Position 10mm Path-Length Cuvette Holder |
| Maximum Cuvette Accommodation | Up to 100mm Path-Length with Optional Holder |
| Connectivity | USB Port, Parallel Port (Centronics Interface) |
| PC Software | Basic Quantitative & Kinetic Analysis Software Included |
| Optional Software | Wavelength Scanning and DNA/Protein Analysis |
| Power Requirement | 230V ±10% AC, 50Hz |
| Dimensions (L × B × H) | 490 × 385 × 225 mm |
| Approximate Weight | 14.5 Kg |
| Accessories Included | 2 Quartz Cuvettes, 4 Glass Cuvettes, Mains Lead, Operation Manual, Dust Cover |
Core Features & User Benefits
- Wide UV-VIS Spectral Analysis Range The 200nm–1000nm wavelength range enables comprehensive ultraviolet and visible spectroscopic analysis for diverse laboratory applications.
- High Precision Optical System The single beam grating monochromator with 1200 lines/mm improves wavelength accuracy, spectral purity, and analytical reproducibility.
- Large Graphical LCD Display The 128 × 64 graphical LCD provides clear analytical data visualization and allows direct display of standard calibration curves.
- Microprocessor Controlled Operation Advanced solid-state microprocessor technology enhances stability, operational reliability, and precision measurement performance.
- Dual Lamp UV-VIS System Integrated Tungsten and Deuterium lamps provide optimized UV and visible spectrum operation with independent ON/OFF control for extended lamp life.
- Auto Wavelength Setting Function Automatic wavelength selection simplifies operation and improves testing efficiency during routine analytical procedures.
- Flexible Sample Accommodation Large sample compartment supports cuvettes from 5mm to 100mm path length for expanded laboratory application versatility.
- Advanced Connectivity Options USB PC connectivity and printer interface support efficient data transfer, external instrument control, and laboratory documentation.
- Expandable Analytical Software Optional professional software enables advanced wavelength scanning and DNA/Protein analysis applications for research laboratories.
Frequently Asked Questions (FAQ)
What is the Model 2371 EI-DVI UV/VIS Spectrophotometer used for?
The Model 2371 UV/VIS Spectrophotometer is used for accurate absorbance, transmittance, and concentration analysis in pharmaceutical, chemical, biological, food, environmental, and research laboratories.
It supports quantitative and qualitative spectrophotometric analysis, kinetic studies, wavelength-based testing, and laboratory quality control applications requiring reliable UV-visible spectroscopy.
What wavelength range does the Model 2371 cover?
The Model 2371 operates across a UV-VIS wavelength range of 200nm to 1000nm, enabling comprehensive ultraviolet and visible spectrum analysis.
This broad spectral coverage supports pharmaceutical analysis, chemical testing, biological research, food analysis, and environmental monitoring applications.
What are the advantages of the graphical LCD display?
The 128 × 64 graphical LCD display provides improved readability of analytical data and allows users to directly view standard calibration curves on-screen.
This enhanced display functionality improves laboratory workflow efficiency and simplifies operation during quantitative analysis procedures.
Does the Model 2371 support PC connectivity?
Yes, the Model 2371 includes a USB port for PC connectivity and application software for complete instrument control and data analysis.
The spectrophotometer also includes a parallel printer interface and optional advanced software for wavelength scanning and DNA/Protein analysis applications.
Can the Model 2371 accommodate larger cuvette sizes?
Yes, the large sample compartment can accommodate cuvettes ranging from 5mm to 100mm path length using optional holders for specialized analytical applications.
The instrument is supplied standard with a 4-position 10mm cuvette holder for efficient routine laboratory testing workflows.
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