Conventional double beam UV Vis spectrophotometers available as a fully featured stand-alone unit with optional UV Solutions software, or as a PC based unit. The U2900 /2910 are well proven, robust Pharmacopoeia compliant UV Vis spectrophotometers using conventional deuterium and tungsten-iodine light sources. The systems are available with CFR21-compliant software and full IQ OQ documentation.
In double beam design, the energy of the light source is divided into two with a half mirror so that one passes through the reference side, and the other through the sample side, which is unavailable with the single beam design. Since the reference-side energy is also incident on a detector, photometry is carried out on the basis of this signal. Therefore, an energy change in the light source can be compensated to ensure stable measurement for a long time.
The optics of this instrument adopts the Seya-Namioka monochromator widespread as a representative concavediffraction grating monochromator. Because a concave diffraction grating has both beam condensing and dispersing functions, an optical system canbe configured with fewer mirrors. In a spectrophotometer, use of fewer mirrors signifies a shorter optical path,thus giving rise to an aberration-free bright optics. For elimination of the aberrations which were essentially unavoidable in the past, a stigmatic concave diffractiongrating has been developed by applying Hitachi???s original technology. As a result, a higher resolution has been realized.
A higher resolution has been achieved by eliminating coma from the Seya- Namioka monochromator which is the most popular concave diffraction grating monochromator. Its grooving is supported by the only ruling engine in Japan. The diffraction gratings of Model U-2900/2910 have also been made with this machine.
Simple to use
Buttons are laid out so as to follow the operating procedure. Hence, operations can be performed smoothly. ![]() |
A rich variety of data processing functions
Spectrum can be expanded, contracted, smoothed, differentiated and integrated, and fundamental arithmetic calculations are applicable between spectra. ![]() |
Powerful support for report generation
Measured data can be sent to Microsoft ? Excel?. One click of the Report button suffices for data transmission. ![]() |
A spectrum can be pasted to another application program. ![]() |
Print preview
Before printing, the contents can be checked by the Print Preview command. ![]() |
Measured data text convertible
Besides conversion into the ASCII text or JCAMP format, spectra can be saved in Metafile format. ![]() |
ITEM | DESCRIPTION | |||
Optical system | Double beam | |||
Wavelength range | 190 to 1,100 nm | |||
Spectral bandpass | 1.5 nm | |||
Display | color LCD with backlight (26.4 cm) | |||
Printer I/F | Centronics interface | |||
Serial I/F | RS-232C (exclusive for UV Solutions program) | |||
Size (main unit)
|
U-2900: 500 (W) × 605 (D) × 283 (H) mm (with LCD lowered)
U-2910: 500 (W) × 605 (D) × 241 (H) mm (without PC and printer) |
|||
Weight (main unit) | 31 kg, U-2910: 29 kg | |||
Power supply | 100, 115, 220, 230 or 240 V, 50/60 Hz | |||
Power consumption | 300 VA | |||