O-Ring Single Sided Transmission Process Probe - O-SST Probe

The O-SST probe offered by Process Insights is an in-process fiber optic probe that is useful for the use in a corrosive process stream that contains strong acids, bases, or cyanides. With a similar performance rate as compared to Process Insights’s gold alloy sealed SST probe, the O-SST instead utilizes polymer O-rings to seal the sapphire windows within its system.

An additional similarity between the SST and the O-SST probe involves their high optical throughput for low noise in-line spectroscopy during complex solutions, thereby eliminating the need for costly and problematic fast loops and sample systems. The O-SST can be made available in several convenient pathlengths, probe lengths, O-ring materials and commonly used chemically resistant stainless steel alloys.

Product Features

Corrosion-resistant construction

Particularly those containing nitric acids or cyanides that can harm the gold alloy sealed SST probe

Rugged design

O-ring process seals

Sapphire optical windows

Options available to best meet process requirements

Contact DuPontTM Elastomers for further inquiry on these material options.

Sealed against ambient moisture infiltration

High optical throughput for low noise spectroscopy

Collimated beam for accurate absorbance measurements

Vibration resistant design

Probe can be easily dismantled

Allows for periodic O-ring servicing

It is recommended that users have Process Insights professionals perform O-ring services to ensure optimum probe performance

On request, the O-SST can be supplied welded to an ANSI or DIN process flange.

Operating Range:

Determined by the choice of the O-ring material

Maximum temperature: 250 °C

Maximum pressure: 1000 psi

Various versions available, of which include:

Five different standard lengths

Nine optical pathlengths

UV, Visible and NIR versions available

Additional probe lengths and pathlengths can be made available upon request

Exceptional Light Transmission

In a similar manner compared to all other Process Insights optical probes, the O-SST Probe offers users an exceptional optical performance. For example, the peak transmission of the O-SST typically exceeds 40%, thereby providing a greater signal, lower measurement noise, as well as reduced limits of detection.

Compatible with All Process Insights Analyzers

The O-SST probe, or sample interface, plays a crucial role within the complete analyzer system. To ensure optimal performance, the probe must be ‘optically matched’ with both the spectrometer and the optical fiber that transmits the spectral data.

All Process Insights’s optical probes, including the O-SST, are matched to Process Insights’s analyzers and fiber to ensure that the highest possible performance rate is achieved. Additionally, the O-SST is compatible with many other fiber optic analyzer brands in reference to their fiber diameter and spectral range.

O-SST Probe



Available Customization

Process Insights offers a wide variety of probes, flow cells and fiber optic cables that can meet 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.

Product Specifications

Standard Probe Lengths (inches):

12

18

24

30

36

Additional lengths can be made available upon request

Pathlength (mm ± 0.075 mm):

1

2

5

10

15

20

30

40

50

Additional lengths can be made available upon request

Probe Diameter (inches): 1.000 ± 0.005 [25.4 mm ± 0.13 mm]

Spectral Range:

UV-Vis: 200 – 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)

Low-OH

Ultra-Low-OH (Vis-NIR)

Optical Efficiency (%T):

> 30% for pathlengths ≤ 20 mm

Temperature Range:

Determined by O-ring material

Cannot exceed –25 °C to 250 °C

Pressure Range:

0 psi to 1000 psi

0 – 69 bar

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)

Fused Silica (UV)

Window Seal:

Polymer O-ring material of your choice with a Durometer of 70 Shore A or greater, of which include:

Kal-Rez^® 7075

Kal-Rez^® 6375

Kal-Rez^® 4079

Viton

EPDM

Silicone

Mounting:

Swagged fittings

Custom flanges

Extractor assembly mechanism option (doc #10346)