UV-Visible/NIR Spectrophotometer UH3900S/UH3900D
Introduction
The UV-Visible/NIR Spectrophotometer UH3900S/UH3900D is a system for measuring the absorbance and transmittance of a sample. It analyzes both liquid and solid samples across the ultraviolet, visible, and near-infrared spectrum. The series offers a choice between a single monochromator model (UH3900S) for high precision and a double monochromator model (UH3900D) for a wide photometric range.
Product Overview
This instrument is built on a proven double-beam optical system that uses a stigmatic concave diffraction grating. This design requires fewer mirrors, which minimizes light loss and aberrations, resulting in a bright and stable optical system. Designed for demanding fields like materials science, biotechnology, and environmental analysis, the UV-Visible/NIR Spectrophotometer UH3900S/UH3900D series ensures data reliability and compatibility with previous models.
Key Features
- Two Model Options: The UH3900S (single monochromator) for low noise and the UH3900D (double monochromator) for ultra-low stray light and a wide measurement range.
- Stable Optics: A double-beam system with a stigmatic concave diffraction grating ensures stable performance.
- UV Solution Plus Software: A new, user-friendly interface increases operational efficiency and data processing.
- Stable Baseline: Baseline flatness within ±0.0003 Abs (UH3900S) and ±0.0004 Abs (UH3900D).
- Trace Sample Analysis: A finely converged beam allows for accurate measurements with micro-volume cells (5 µL, 25 µL).
- Easy Maintenance: Lamps are connected by sockets, allowing for quick, tool-free replacement.
Technical Specifications
| Specification | UH3900S | UH3900D |
| Optical System | Single monochromator, double beam | Double monochromator, double beam |
| Stray Light | ≤ 0.015% | ≤ 0.00025% |
| Photometric Range | -3.8 to 3.8 Abs | -5.5 to 5.5 Abs |
| Baseline Flatness | ±0.0003 Abs | ±0.0004 Abs |
| Dimensions (W x D x H) | Approx. 680 × 692 × 257 mm | |
| Weight | Approx. 45 kg | |
Applications
- Analysis of water quality and environmental samples.
- Drug manufacturing and biotechnology research.
- Materials science and optical characterization.
- Color measurement of cosmetics and other products.
- Visible light transmission for products like contact lenses.
Pricing
Please contact us for consultation and detailed quotation.
FAQ
1. What is the main difference between the UH3900S and UH3900D models?
The UH3900S uses a single monochromator, ideal for high-precision, low-noise analyses. The UH3900D uses a double monochromator, which significantly reduces stray light and expands the measurement range, making it suitable for highly absorbing samples.
2. What types of samples can the UV-Visible/NIR Spectrophotometer UH3900S/UH3900D analyze?
It can analyze both liquid and solid samples. With the proper accessories, it can measure samples in cuvettes, thin films, glass filters, and other materials.
3. Is the UV Solution Plus software easy to use?
Yes, the software is designed with a simple 4-step operation flow and an intuitive interface, making it easy for users to set up measurements and process results.
4. What is the benefit of the double monochromator in the UH3900D?
The double monochromator drastically reduces stray light, which allows for accurate measurements of very high absorbance samples (up to 5.5 Abs) and ensures good linearity at high concentrations.
5. Is maintenance difficult for the instrument?
Maintenance is straightforward. For example, the D2 and WI lamps can be replaced easily without tools because they are connected via sockets.
Conclusion
The UV-Visible/NIR Spectrophotometer UH3900S/UH3900D provides reliable and flexible optical analysis. With options for high precision or a wide dynamic range, it meets diverse laboratory needs. Contact us for more information.
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