Spectrophotometer Visible Libra S21 Vis XENON

The Biochrom Libra S21 Vis Spectrophotometer is a sophisticated instrument designed for precise measurements within the visible wavelength range of 325 to 1100 nm. It boasts a wavelength accuracy of ±1 nm and reproducibility of ±0.5 nm. The spectrophotometer is equipped with a Xenon (PTR) lamp source and utilizes a split beam optical system with reference beam compensation to enhance measurement accuracy. A bandwidth of less than 3 nm supports detailed spectral analysis. The instrument employs a dual solid-state silicon photodiode detector, providing a photometric range from -3.000 to 3.000 A. It also measures -9999 to 9999 concentration units and offers a transmittance range from 0.1 to 200% T. The device ensures low stray light, less than 0.05% T at 220 nm and 340 nm, and maintains zero stability at ±0.002 A/h at 0 A after warm-up. Although baseline flatness is not applicable, the device supports spectral scanning up to 900 nm. The photometric accuracy stands at ±0.5% or ±0.003 A at 3 A for 546 nm, and photometric reproducibility at 0.5% of absorbance value. It requires a power supply of 90-265V AC, 50/60Hz, 80 VA and is compact, weighing 13 kg and measuring 51 x 37 x 23 cm.