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661.622-UV/NIR - Ultra-Miniature Immersion Probe with removable Tips



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The probe 661.622-UV/NIR is an ultra miniature immersion probe with a stainless steel tube and a handle also made of stainless steel. This new type of ultra mini probe allows the user to change, easily and quickly, the optical path lengths by means of removable tips. Tips are available for path lengths from 1, 2, 5, 10 and 20 mm.

The light beam passes the sample twice. An input (first) monofiber transmits the light through a lens and across the optical path to a high-efficiency coated mirror. This mirror returns the light through the lens to the receiving (second) monofiber.



The monofibers equiped with SMA 905 connectors are made of quartz glass and re fused directly each other. The cables are permanently attached to the top sectionand are, therefore, not changeable. The ultra miniature immersion probe is well suited for the analysis in smaller sample volumes in laboratory applications. An example for this is the TDA measurement (Tablet Dissolution Analysis).

Technical Specification
Spectral rangeUV/VIS (220 nm - 1100 nm)
and NIR (400 nm - 2300 nm)
Path lengths available1 mm, 2 mm, 5 mm, 10 mm, 20 mm
(0.04", 0.08", 0.2", 0.4", 0.8")
Optical path length = 2 x path length)
Probe materialStainless steel 1.4571
Outer diameter, stainless steel tube6 mm / 0.3"
Outer diameter, handle12.5 mm / 0.5"
Total length235 mm / 9.3"
Maximum temperature150°C / 300 °F
Maximum pressure6 bar / 87 psi
Fiber optic connectors 2 x SMA 905
Length of fiber optic cables2 x 2 m / 6.6 ft fiber optic cables (not changeable)
Core fiber diameter 600 µm


Last change 08/20/2007
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