Immersion probe for wet chemistry processes
This Hellma immersion probe was especially developed for analysing and monitoring wet processes in photovoltaic and semiconductor industries. Design your process control fast and efficient.
These probes have a monolithic probe head made of high-purity sapphire (Al2O3). By using a total reflection prism, the light beam passes through the sample only once, as with a cuvette measurement.The stray light is minimised.
Product info 661.2310-NIR
| Type | 661.2310-NIR |
| Sensing head material | Sapphire (Al2O3) |
| Probe barrel material* | PTFE |
| Sealing of sensing head | Perfluorelastomer FFKM |
| Outer-Ø | 25 mm |
| Total length | 353 mm (incl. SMA socket) |
| Max. immersion depth | 240 mm |
| Light path | 1mm, 2 mm, 5 mm, 10 mm (others upon request) |
| Typ. transmission | NIR: > 40 % in air at 1.500 nm |
| Max. pressure | 10 bar |
| Max. temperature | 80 °C |
| Optical fibres | Built in can be changed at Hellma NIR 400 nm – 2.300 nm (25.000cm-1 - 4.348 cm-1) UV/Vis and UV/Vis low solarisation upon request |
| Optical fibre connections | Sockets for FSMA Type 905 |
* other materials optional
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