Mini Immersion Probe
This Hellma transmission probede has been developed for manual use in the laboratory. Thanks to the fact that it is fixed by means of a clamping ring (e. g. Swagelok®) the probe can be permanently installed for continuous process monitoring in a reactor, for example.
Probe parts are made of stainless steel or Hastelloy®, quartz and FFKM®, so that the use of adhesives in contact with the sample has been avoided. It is ideal for measurements in solvents which might attack adhesive materials.
Product info 661.112
| Catalogue Number | 661.112-UV 661.112-NIR |
| Window and prism material | Quartz SUPRASIL® 300 |
| Barrel material | Stainless steel 1.4435 (316 L) or 2.4602 (Hastelloy® C-22) |
| Probe head seal | FFPM |
| Outside Ø probe head | 12.7 mm (1/2")* |
| Total length | 230 mm |
| Max. immersion depth | 190 mm |
| Light path | 2 mm, 5 mm, 10 mm |
| Typ. transmission | UV/Visapprox. 35 % in air above 300 nm NIR approx. 35 % in air above 400 nm |
| Max. pressure | 6 bar |
| Max. temperature | 150 °C |
| Fibre-optic cables | Built-in, not exchangeable UV/Vis–2 m** 240 nm –1100 nm (41.667 cm-1– 9.100 cm-1) NIR–2 m** 400 nm– 2.300 nm (25.000 cm-1– 4.348 cm-1) UV/Vis–low solarisation on request |
* 12 mm Outside-Ø on request
** Fibre-optic cables available in various lengths.
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