Catalog excerpts
For all UV-VIS-NIR applications and ATT-INL-EXT setups where light intensity has to be reduced, Avantes offers the inline fiber-optic attenuator (ATT-INL-EXT) and the direct attached fiber-optic attenuator (ATTDA). This device is an iris attenuator which controls light throughput to avoid detector saturation. The ATT-INL-EXT is coupled between two SMA terminated fiber-optic cables, whereas the ATT-DA can be connected directly to the light source. Both devices consist of two UV/VIS/NIR collimating lenses mounted on either side of an adjustable iris. The attenuation can be set from 0-100% and can be fixed with a set screw. Wavelength range Attenuation Iris aperture Iris construction Fiber connection Material Dimensions Technical Data 200-2500 nm 0-100% 0.0 - 12.0 mm 2 x 5 leaves 2 SMA-905 connectors, incl. 2 COL-UV/VIS collimating lenses Black anodized aluminum 60 x 0 25 mm Ordering Information ATT-INL-EXT • In-line Fiber-optic Attenuator, 0-100%, SMA connectors Variable Pathlength Cuvette Holder For low absorption measurements and flow cell cuvettes, the CUV-VAR-UV/ VIS cuvette holder is the ideal solution. It features a variable, adjustable path length, ranging from 10-160 mm, ensuring maximum flexibility. It can be used as a standard cuvette holder with a 10 mm path length, as a filter holder with 2 mm path length or any path length up to 160 mm. This item is equipped with two COL-UV/VIS CUV-VAR-UV/VIS collimating lenses to support applications in the 200-2500 nm wavelength range. Technical Data Base Dimensions (L x W x H) Fiber connection Optical path Cuvette holder insert Focal height Overall dimensions (L x W x H) A/antes enlightening spectroscopy 200 x 80 x 25 mm 2 x COL-UV/VIS, SMA connectors 10-160 mm Optical path 20 mm for 10 mm cuvettes 15 mm from base plate 200 x 96 x 62 mm Ordering Information CUV-VAR-UV/VIS • Cuvette Holder with variable 0-100 mm path, incl. 2 COL-UV/VIS collimating lenses
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