Insertion Probes

We use the terms "insertion" and "probe" together to mean that this optical sampling device is inserted directly into the process stream and connected to our analyzer with optical fibers. Insertion probes are generally placed into a reactor, vessel or larger pipe.

Advantages:

Direct analysis of the flowing process
No lag time
No additional cost associated with bypass loops (slip streams), pumps, etc.

Disadvantages:

The probe must be retracted to clean or zero
Optical fibers will move when the probe is moved
Possible safety and handling issues when removed

	Single-sided (SST)transmission probe with brazed sapphire windows designed for continuous service up to 300 ºC or pressures up to 1500 p.s.i. Light passes through the sample once. Accepts two optical fibers. Conduit connectors and welded flanges optional. Not recommended for strong acids or caustic. Optical paths of 2, 5, 10, 20 and 50 mm.
	Single-sided (o-SST) transmission probe similar to above, except with o-ring seals for corrosive process liquids at lower sample temperatures
	1/2" diameter transflectance probe with o-ring seals for lower sample temperatures. Lower cost. Light transmits across the sample, is reflected from a sealed mirror inside the tip and is reflected back through the sample to the analyzer. The optical path is twice (2x) the physical "gap". Easily integrated with a pneumatic retraction device.
	Single-sided transmission probe for use with extreme temperatures, including excursions above 300 ºC and with significant temperature cycling, such as batch reactors. Can be purged and internally cooled. Light passes through the sample once. Accepts two optical fibers.