Mini prozess probe with variable light path
This Hellma Analytics transflexion probe is the smallest O-ring tightened probe of its kind. This makes it exceedingly robust and flexible due to removable light path tips – the perfect choice for process and laboratory.
After passing through the solution to be measured, the light beam is reflected by a rear-coated mirror and passes through the solution a second time.
Product info 661.686-UV
| Type | 661.686-UV |
| Window material* | Quartz glass SUPRASIL® |
| Mirror material* | Quartz glass SUPRASIL® with aluminium reflective layer |
| Probe barrel material** | Stainless steel 1.4435 (316 L) |
| Probehead seal | Perfluorelastomer FFKM (ASTM 01418) |
| Outer-Ø | 6 mm |
| Total length | 235 mm |
| Max. immersion depth | 180 mm |
| Removable tips | Typ 665.828 (light path equals to 2 x distance from mirror to window) 1mm, 2 mm, 5 mm, 10 mm, 20 mm |
| Typ. transmission | UV ca. 40 % in air, at 300 nm |
| Max. pressure | 100 bar |
| Max. temperature | 180 °C |
| Optical fibres*** | built in, not exchangeable UV Length: 1,8 m 240 nm–1100 nm (41.667 cm-1–9.090 cm-1) UV/Vis and UV/Vis–low solarisation upon request |
| Optical fibre connections | FSMA Type 905 |
*Sapphire on request ** other materials on request *** other fibre length optional
back
Product info 661.686-NIR
| Type | 661.686-NIR |
| Window material* | Quartz glass SUPRASIL® |
| Mirror material* | Quartz glass SUPRASIL® with aluminium reflective layer |
| Probe barrel material** | Stainless steel 1.4435 (316 L) |
| Probehead seal | Perfluorelastomer FFKM (ASTM 01418) |
| Outer-Ø | 6 mm |
| Total length | 235 mm |
| Max. immersion depth | 180 mm |
| Removable tips | Typ 665.828 (light path equals to 2 x distance from mirror to window) 1mm, 2 mm, 5 mm, 10 mm, 20 mm |
| Typ. transmission | NIR ca. 50 % in air, at 1500 nm |
| Max. pressure | 100 bar |
| Max. temperature | 180 °C |
| Optical fibres*** | built in, not exchangeable NIR Length: 1,8 m 400 nm – 2.300 nm (25.000cm-1 - 4.348 cm-1) |
| Optical fibre connections | FSMA Type 905 |
*Sapphire on request ** other materials on request *** other fibre length optional
back