Corrosion Resistant Single-Sided Transmission Process Probe

As one of the most popular fiber optic probes offered by Process Insights, the SST has been commercially available for over 25 years, making this product the most widely copied probe design in the industry. As a highly rugged and reliable option that can be easily installed within a pipe or reactor through a single access port, the SST probe is ideal for continuous process monitoring applications. Additionally, the SST Probe is compatible with any Process Insights analyzer and many other analyzer brands.

The SST probe can be made to accompany a wide a variety of optional accessories that allow for it to easily adapt to applications in different types of process installations. The SST probe houses both incoming and outgoing optical-fibers side-by-side in a single 3/4-inch, or 1-inch stainless steel body (U.S. Patent #6,043,895), thereby allowing true transmission rates to be analyzed and ultimately provide users an improved signal, reduced noise and overall better measurements.

Product Features and Specifications

Corrosion-resistant construction

However, for extremely corrosive process streams, it is recommended that the O-Ring SST Probe is used instead.

Rugged design

Resistant to most process pipe vibrations

O-ring process seals

Sealed to the probe body with proprietary gold alloy brazing

Provides protection of the probe against hydrocarbons and polymers.

Sealed against ambient moisture infiltration

High optical throughput for low noise spectroscopy

Standard Probe Lengths (inches):

12

18

24

30

36

Additional lengths can be made available upon request

Pathlength (mm ± 0.075 mm):

2

5

10

15

20

50

Additional lengths can be made available upon request

Probe Diameter (inches):

0.750 (19 mm) ± 1.000 (25.4 mm)

Larger diameter is recommended for probes that are 24” or longer in length

Spectral Range:

UV-Vis: 230 – 600 nm

Vis-NIR: 380 – 1100 nm

NIR: 800 – 2100 nm

Optics:

Fused silica (UV-Vis)

BK7 (Vis-NIR)

Fiber Diameter (μm)/Connector:

400

500

600

SMA 905

FC

ST

Additional options can be made available upon request

Fiber Types:

Deep UV (UV-Vis)

Ultra-Low-OH (Vis-NIR)

Optical Efficiency (%T):

> 30% for pathlengths ≤ 20 mm

Temperature Range:

-45 °C to 300 °C

Pressure Range:

0 psi to 2000 psi

0 – 138 bar

Higher pressures can be made available upon request

Body Material:

316L SS standard

304 SS

316 SS

Hastelloy

C-276

Monel

Titanium

Nickel

Additional materials can be made available upon request

Window Material:

Sapphire (Vis-NIR)

Window Seal:

Proprietary gold alloy brazing

Mounting:

Swagged fittings

Custom flanges

Extractor assembly mechanism option (doc #10346)

Various versions available, of which include:

Five different standard lengths

Six optical pathlengths

Additional probe lengths and pathlengths can be made available upon request

Typical peak transmission exceeds 40%

Improves signal

Lowers measurement noise

Reduced limits of detection

Optics of the probe are permanently aligned at the factory

Eliminates the need to make any optical adjustments at the time of installation

Eliminates any possibility of misalignment or varying pathlengths

Compatible with All Process Insights Analyzers and Many Other Analyzer Brands

The probe, or sample interface, plays a crucial role within the complete analyzer system. To ensure the highest optimal performance, it is imperative that the probe is optically matched with both the spectrometer and optical fiber that is used to transmit the spectral signal.

Similar to all other Process Insights’s optical probes, the SST Probe is also matched to all Process Insights analyzers and fibers to ensure that the highest possible performance is achieved. It is also important to note that Process Insights probes are also capable of working with numerous other fiber optic analyzers of varying diameter and spectral ranges which are produced by different manufacturers.

Optional Accessories

The SST probe can be made available with various optional accessories that allow for the probe to easily adapt to numerous different types of process installations. For example, the Extractor Assembly Mechanism allows for a rapid and easy removal and servicing of probes without requiring the process to come to a halt. Additionally, Process Insights’s custom flange service facilitates the easy installation of the SST Probe into common process pipe configurations.

Large Variety and Custom Designs Available

Process Insights offers a wide variety of probes, flow cells and fiber optic cables that are capable of meeting the harsh demands of the process environment. In fact, these options are often equipped with various auxiliary features, all of which remain compatible with all Process Insights analyzers, as well as several other fiber optic based analyzers that are manufactured by other companies.

Most of Process Insights’s probes and flow cells can be optimized for the UV, visible or NIR spectral regions, or even supplied with custom fiber diameters and connectors to meet the specific optical requirements for each customer’s purpose. Note that if Process Insights does not offer a specific probe or flow cell that is required for a customer’s purpose, this company will specifically design a custom solution to meet a particular process installation.

SST Probe