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All-Quartz immersion probe 661.500
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All-quartz immersion probes have a probe head made of SUPRASIL® 300 quartz that is fused to a quartz tube forming a leak proof seal. For this reason, these probes are particularly useful for transmission measurements in corrosive solutions, where the use of metal probes is not practical.
The collimated light beam passes the solution to be measured only once, equivalent to a measurement in a cell. The use of a deflecting prism with two fully reflective surfaces leads to very low values for stray light.
Technical specification
Probe head material
Quarzglas SUPRASIL
®
300
Barrel material
Quartz
Probe head seal
directly fused
Outside Ø probe head
15mm
Outside Ø quartz barrel
Schliff NS 19/35
Total length
approx. 270mm (10mm light path)
Max. immersion depth
120mm (10mm light path)
Light path
1mm, 2mm, 5mm, 10mm, 20mm, 50mm
Typ. transmission
UV/Vis approx. 40% in air above 300nm
NIR approx. 40% in air above 400nm
Max. pressure
0.5bar
Max. temperature
150°C
Fiber-optic cables
not included in delivery, available as accessory for UV/Vis and NIR spectral ranges
Last change 08/20/2007