HELLMA | Fiber Optik Prob | Hellma Fibre Optic Probe-ATR Probe
HELLMA
Fiber Optik Prob
Hellma Fibre Optic Probe-ATR Probe
ATR Probes
ATR means “Attenuated Total Reflection”. Light passing from a material with high refractive index (ATR crystal) to a material with lower refractive index (solution) is normally totally reflected. However, in practise, the light partially enters the solution and can be absorbed. The reflected light is therefore attenuated, causing a measurable reduction in the output signal dependent upon the absorbance of the solution.
ATR probes are suitable for situations involving the direct measurement of strongly absorbing solutions, where standard transmission probes cannot be used. The ATR probe 661.812 uses a 3-bounce sapphire ATR crystal, which is directly immersed into the solution to be measured.
Product info 661.812
|
Catalogue Number
|
661.812-UV
|
|
Prism material
|
Sapphire
|
|
Barrel material
|
Titanium
|
|
Probe head seal
|
Epoxy glue
|
|
Outside Ø
|
12.5 mm
|
|
Total length
|
205 mm
|
|
Max. immersion depth
|
165 mm
|
|
Typ. transmission
|
approx. 25% in air 300 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) UV/Vis–low solarisation on request |
Product info 661.820
|
Catalogue Number
|
661.820-UV
|
|
Prism material
|
Sapphire
|
|
Barrel material
|
Stainless steel 1.4435 (316 L)
or 2.4602 (Hastelloy® C-22) |
|
Probe head seal
|
FFPM
|
|
Outside Ø
|
12.7 mm*
|
|
Total length
|
266 mm
|
|
Max. immersion depth
|
200 mm
|
|
Typ. transmission
|
UV/Vis approx. 25% in air 300 nm
|
|
Max. pressure
|
15 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) UV/Vis–low solarisation on request |
Etiketler : Ankyralab HELLMA Fiber Optik Prob Hellma Fibre Optic Probe-ATR Probe, Laboratory Devices, Laboratory Equipments, Laboratory Tools, Ankyra Laboratory Tools, Ankyralab Laboratory Devices, Ankyralab Laboratory Systems
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