Standard Immersion Probe
Hellma standard immersion probes are ideally suited to laboratory measurements. As with conventional cell measurements, the collimated light beam passes through the solution only once. The use of a prism very low values for stray light.
The measuring head is made of SUPRASIL® 300 quartz and secured into the stainless steel top section with a FFKM-O-Ring.The removable metal sleeve protects the immersion probe from damage and reduces the amount of incoming ambient light.
Product info 661.000
| Type | 661.000 |
| Probe head material | Quartz SUPRASIL® 300 |
| Probe barrel material | Stainless steel 1.4404 (316 L) |
| Protective sleeve material | Stainless steel 1.4404 (316 L) /1.4571 (316 Ti) |
| Probe head seal | FFPM |
| Protective sleeve seal | FPM |
| Outside Ø probe head | 15 mm |
| Outside Ø probe shaft | 20 mm |
| Outside Ø probe barrel | 18 mm |
| Outside Ø protective sleeve | 20 mm |
| Total length | approx. 180 mm (10 mm light path) |
| Max. immersion depth | 100 mm (10 mm light path) |
| Light path | 1 mm, 2 mm, 5 mm, 10 mm, 20 mm |
| Typ. transmission | UV/Vis approx. 40% in air above 300 nm NIR approx. 40% in air above 400 nm |
| Max. pressure | 6 bar |
| Max. temperature | 150 °C |
| Fibre-optic cables | Not included, available separately for UV/Vis and NIR ranges (see chapter 3.3.1 and 3.3.3). |
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