Double-Beam UV-Visible Spectrophotometer UV1800, ±0.3 nm Wavelength Accuracy (CAT#: STEM-AL-8832-ZJF)

The UV1800 is a spectrophotometer intended for quantitative ultraviolet-visible spectroscopy and wavelength scanning. It measures sample absorbance and transmittance by selecting wavelength-resolved ultraviolet or visible light. The optical system uses a ratio double-beam architecture with a Czerny-Turner monochromator and holographic grating. The stated wavelength coverage is 190-1100 nm. The source specifies photometric accuracy, wavelength repeatability, stray-light control, noise, baseline flatness, and drift performance. A color touchscreen and method/data storage functions support stand-alone analytical workflows. The normalized record retains only technical information supported by the source. Overall, the instrument provides a precision ratio-double-beam platform for UV-visible analysis.

Optical System: Ratio Double Beam
Monochromator: Czerny-Turner
Grating: 1200 Lines/mm Holographic Grating
Wavelength Range: 190-1100 nm
Spectral Bandwidth: 2 nm
Wavelength Accuracy: ±0.3 nm
Wavelength Repeatability: ≤0.15 nm
Photometric Accuracy: ±0.002 Abs At 0-0.5 Abs
±0.004 Abs At 0.5-1.0 Abs
±0.3%T At 0-100%T
Photometric Repeatability: ≤0.001 Abs At 0-0.5 Abs
≤0.002 Abs At 0.5-1.0 Abs
≤0.15%T At 0-100%T
Stray Light: ≤0.05%
Noise: ≤0.3%T At 100%T
≤0.1%T At 0%T
Baseline Flatness: ±0.002 A
Baseline Dark Noise: ±0.2%T
Drift: ≤0.0008 A

Ratio Double-Beam Optics
Czerny-Turner Monochromator
Holographic Grating
Wavelength Scanning
Method And Data Storage
Touchscreen Operation