Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Investigation of the Developed Spectral Device Operating in the Ultraviolet Wavelength Range YU.M. BORODYANSKY, E.E. MAIOROV, E.V. POPOVA, E.A. PETROVA, M.V. KHOKHLOVA, T.A. CHERNYAK This article reflects a significant study of the developed spectral device operating in the ultraviolet wavelength range. It is shown that the development of these devices is promising for optical instrumentation and science in general, since these devices are informative, highly accurate and extract reliable information. The paper presents the appearance and block diagram of the spectrometer. The adjustment of the optical system of the device using a mercury-helium lamp DRGS-12 and a deuterium lamp DDS-30 is described. It is noted that at the short-wave boundary of the operating spectral range, there is a more than fourfold decrease in the signal of the analog-to-digital converter for the level of 100 %, since this is due to a decrease in the light output of the emitter (DDS-30) and a decrease in the sensitivity of the used CCD ruler. The wavelength calibration error was obtained, which was no worse than 2 nm in the entire operating spectral range. Keywords: spectrometer, illuminator, polychromator, cuvette, diffraction grating, wavelength, sensitivity. DOI: 10.25791/pribor.11.2021.1301 Pp. 09-16.