ColVisTec offers advanced Fiber Optic Probes designed for continuous in situ monitoring of industrial processes. Our product line includes various distinct Probes to cover a wide range of applications.
All of our probes are specifically engineered to withstand harsh environmental conditions, ensuring reliable performance even in challenging industrial settings.
They are suitable for diverse industries — from plastics and polymers, paint, food, and pharmaceuticals to chemical manufacturing — our probes provide versatile measurement options. Depending on the properties of the material, UV-Vis and NIR Probes can be used in Reflection Mode for Opaque Materials or in Transmission Mode for Transparent Materials, allowing precise, continuous monitoring of product quality and critical process parameters to maximize efficiency, stability, and reproducibility.
Color Probe (CP)
The Color Probe (CP) is an accessory for use with
the ColVisTec Inline Color Spectrophotometer
InSpectro X. It is specifically designed for
reflected color measurements in direct contact
with the sample. The CP is suitable for liquid,
suspension / paste or powdery media, such as
paints, printing inks, granulates, etc.
The CP body of stainless steel is designed to fit
a standard 0.75-inch compression fitting.
- Sapphire window
- Fibre length: 5 m (standard)
- Stainless steel body (length: 240 mm, Ø 19.05 mm = 3/4 inch)
- Pressure: ≤ 15 bar
- Working temperature: -30 °C (not condensing) to 100 °C
- Maximum fiber length: 20 m (for very dark colors)
- Maximum fiber length: 50 m (for light colors)
Our Color Probe is usually used in Extruders where opaque liquids, paste, powder, or pellet materials are processed.
UV/Vis or NIR
Reflection Probes
The reflection probe (Reflection Polymer Melt
Probe (RPMP)) is available in two versions: as a
UV/Vis or NIR probe. Depending on the application,
these can be combined with
Inline-Spectrometer InSpectro X
(UV/Vis) or with the
Inline-Spectrometer InSpectro NIR.
Designed for opaque media, it is used for a
variety of applications in R&D as well as directly
in production plants, for example in the
reflection measurement of plastic melts in
extruders.
The RPMP consists of a probe body and a detachable
fiber optic. The probe is positioned in the
material flow at a suitable point in the medium
with laminar flow. The light is transmitted via
six fibers arranged in a ring and the portion of
the light reflected by the medium is detected via
a centered fiber (spectra).
As the fiber optics are removable, calibration can
be carried out outside the installation situation
using an external calibration adapter without
interrupting the ongoing process.
- Probe tip: standard thread 1/2”-20 UNF
- Consists of one fibre optic and one probe body units
- Sapphire window
- Separate fiber optic for easy calibration
- Temperature: ≤ 400 °C
- Pressure: ≤ 250 bar
- Stainless steel body
- Standard fiber length: 5 m
- Maximum fiber length: 20 m (for very dark colors)
- Maximum fiber length: 50 m (for light colors)
RPMP probes are used to measure opaque materials such as molten polymers, chemicals, pharmaceuticals and powders. This probe is specially designed to withstand the high temperature and pressure often found in extruders, though it can also be installed in other types of manufacturing machinery.
UV/Vis or NIR
Transmission Probes
The transmission probe (Transmission Polymer Melt
Probe (TPMP)) is available in two versions: as a
UV/Vis or NIR probe. Depending on the application,
these can be combined with the
Inline-Spectrometer InSpectro X
(UV/Vis) or with the
Inline-Spectrometer InSpectro NIR.
Designed for transparent/clear media, it is used
for a variety of applications in R&D as well as
directly in production plants, for example in the
transmission measurement of plastic melts in
extruders.
The TPMP consists of two probe sleeves and two
detachable fiber optics, which are installed
directly opposite each other (aligned) in the
material flow. One probe emits the light and the
other detects the light, which records the
characteristics of the medium to be measured
(spectra).
As the fiber optics are removable, calibration is
also possible outside the installation situation
using external calibration adapters and spacers
without interrupting the ongoing process.
Alternatively, it is also possible to calibrate to
air or the medium in the installation situation.
- Probe tip: standard thread 1/2”-20 UNF
- Consists of two fibre optic and two probe body units
- Sapphire window
- Separate fiber optic for easy calibration
- Temperature: ≤ 400 °C
- Pressure: ≤ 250 bar
- Stainless steel body
- Requires perfect in-line fitting
- Standard fiber length: 5 m
- Maximum fiber length: 100 m
TPMP is used in extruders for transparent molten polymers in extrusion processes.
2-in-1 Combined Probe with
UV/Vis and NIR Fibers
The Combined Probe is a unique accessory for use with
the ColVisTec’s Inline Spectrometer
InSpectro X and InSpectro NIR. It is specifically
designed to perform UV/Vis and NIR simultaneous measurements from a
molten polymer stream in an extruder. Combining
these two spectroscopy techniques is particularly
powerful in process optimisation and provides
remarkable process insights.
Again, the Combined Probe consists of a single probe
body that can be permanently installed into the
extruder, and a removable dual-fiber assembly that
transmits and receives UV-Vis and NIR light from
the sample at the same time and position in the process.
- Probe tip: standard thread 1/2”-20 UNF
- Consists of two fibre optic units
- Sapphire window
- Separate fiber optic for easy calibration
- Temperature: ≤ 400 °C
- Pressure: ≤ 250 bar
- Stainless steel body
- Requires perfect in-line fitting
- Standard fiber length: 5 m
- Maximum fiber length: 20 m
The Combined Probe is specificially designed for production processes to measure UV/Vis and NIR spectroscopy at the same measurement point. It can be used in the polymer, paint, pharma, food or chemical industry due to the standard thread for an easy implementation into the process.
