Lambda 20/Lambda 40 Installation and Maintenance Guide - VTP UP

Lambda 20, Lambda 40 UV/Vis SpectrometersOpticsBeam center heightBeam cross-sectionOptical pathlength insample compartmentGrating (Monochromator)Radiation sourcesDetector15 mm above cell holder bottom0.5 mm slit ca. 0.25 mm x 7 mm (width x height)1 mm slit ca. 0.6 mm x 7.5 mm (width x height)2 mm slit ca. 1 mm x 7.5 mm (width x height)4 mm slit ca 2 mm x 7.5 mm (width x height),at focal point of sample and reference beam insample compartment121 mmHolographic concave grating with 1053 lines/mmin the centerPrealigned deuterium and halogen lampsPhotodiodes(One for the sample beam and one for the referencebeam)AbscissaWavelength rangeWavelength accuracyWavelength reproducibilitySpectral bandwidth190 nm to 1100 nm;0 nm for alignment purposes±0.3 nm±0.1 nm0.5 nm, 1 nm, 2 nm, 4 nm(selectable fixed slit widths)88