New data processing software UV Solutions Plus is used to create a comfortable operating environment

The new data processing software is the successor to the popular UV Solutions software, and is enhanced with functions for displaying data lists and data processing results in table format, customizable report layouts, and performance verification functions.

Low stray light and low noise enable measurement over a wide absorbance range

When a spectrophotometer has a high light transmission capacity and low noise in the absorption spectrum, the measurable absorbance range also widens, enabling measurement of higher concentration samples and a wider concentration range.

Stable spectrometer with double beam optical system

The light source is a WI lamp (visible range) and a D2 lamp (ultraviolet range), which are switched depending on the measurement wavelength. A double beam system is used in which monochromatic light dispersed by a diffraction grating is split into a control side and a sample side by a rotating mirror and then led to the sample chamber. The single monochromatic type UH3900S model uses a spherical mirror in front of the entrance slit, while the double monochromatic type UH3900D model uses a diffraction grating.

Extensive accessories for measuring liquids and solids

We offer a wide range of accessories to meet various measurement needs for spectrophotometers, including multi-sample and trace sample applications.

Equipped with aberration-corrected concave diffraction grating

The UH3900S/UH3900D spectrophotometer uses an aberration-corrected concave diffraction grating with a Seya-Namioka mount as its spectrometer. Because it has both focusing and dispersion functions, it has a structure with fewer mirrors, which reduces light loss and aberration, resulting in a bright optical system.

SPECIFICATIONS

ITEM	UH3900S	UH3900D
Spectrometer	Diffraction grating single monochrome	Diffraction grating / diffraction double monochrome grating Double monochromator Seya-Namioka mount
Wavelength range	190 to 900 nm
Hand Pass	0.1, 0.5, 1, 2, 4, 5 nm (6 steps)
Wavelength accuracy	±0.1 nm (at 656.1 nm, after wavelength calibration)