| The Mk II Holographic Filtered Probe Head
(HFPH) uses state-of-the art holographic optics to provide high
signal-to-background measurements at any length of optical fiber.
The field-proven fixed-optic design provides long term measurement
stability along with superior background rejection and maximum
sampling flexibility.
The RMS-threaded faceplate of the Mk II probe head allows a wide
range of optics to be attached. Non-contact optics with working
distances of 0.1 to 17 inches can be used to measure through windows,
bottles, or simply at a convenient distance from a sample. Immersion
and insertion optics are available that use single, double or
triple window designs to allow safe, direct installation into
reaction vessels or process streams. Many of the immersion optics
feature an adjustable focus design. The Mk II probe head also
serves as a stable interface for the Raman Microprobe and CDRH
class I sample compartment (HLSC) options.
All Mk II probe heads use a single fiber for excitation and another
for collection. For laboratory equipment, this provides a robust
interface and sampling versatility. For process equipment, single
fibers allow reduced cost for long runs of fiber as compared to
multi-fiber collection designs. Single collection fibers also
permit multi-channel operation on a single spectrograph. Standard
telecommunication fiber diameters (< 100 microns) are used
to increase mechanical stability. This results in fewer broken
fibers, increased safety and lower maintenance costs.
The Mk II probe head features an integrated “Laser On” indicator
and laser shutter and requires no electrical power.
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The Mk II above is shown with a non-contact optic.
The shutter and laser indicator are plainly visible on the face of
the probehead. The inset shows the probehead without the optic.
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Features
- 180° measurement
- Patented holographic filter design
- One in/one out fiber optics
- Integrated “laser on” indicator
and laser shutter
- RMS-threaded faceplate to fit a range of sampling optics*
- FC connectors
Cable Features
- Indoor/outdoor-rated cable design
- -40 to 85 °C operating temperature standard
- UL-listed riser rated OFNR
- Integrated precision-tensioned strength members
Optic Options
- Non-contact optics 0.3-17 inches
- Immersion optics up to 280 °C and 3000 psi
- Extruder-compatible optics
- Flanged process-compatible optics
* Some process enclosures require alternate faceplate.
Contact KOSI for specifications. |
