7 - Spectrophotometer

Technical data: Photometer: Measuring principle: Absorption single beam photometer with reference beam and several fixed wavelenghts. Light source: Xenon flash light. Monochromator: Holographic concave grating. Beam receiver: Silicon photo diodes. Wavelengths: 230, 260, 280, 340, 405, 490, 550, 595, 650 nm. Wavelength selection: Dependent on method, controlled by program. Spectral bandwidth 5 nm at 230 to 340 nm, 7 nm at 405 to 650 nm. Photometric measuring range Quartz glass cuvette: • A = 0 to 3, except: • A = 0 to 2 at 340 nm, • Only for dye methods: A = 0 to 2 at 550/650 nm, UVette (Eppendorf): • A = 0 to 2.5 at 230 nm, • A = 0 to 2.6 at 260 nm, • A = 0 to 2.8 at 280 nm, • Other values see quartz glass cuvette, Reading accuracy ΔA = 0.001, Random photometric error ≤ 0.002 at A = 0, ≤ 0.005 at A = 1. Systematic photometric error ± 1% at A = 1. Stray light component < 0.05 %. Power supply: Power supply 100 to 240 V ± 10 % / 50 to 60 Hz ± 5 %. Overvoltage category IEC 61010-1 category II. Degree of contamination: IEC 61010-1 category II. Power consumption approx. 20 W Weight / dimensions: Weight 3 kg. Dimensions Width: 200 mm, Depth: 320 mm, Height: 100 mm, Space required Width: 400 mm (or 650 mm including printer), Depth: 500 mm. Interfaces: Interface for printer and PC serial RS-232