Shuttle Probe for In-Pipe Measurement with Easy Cleaning

The Shuttle Probe is a unique and convenient process probe for monitoring liquid samples, in-situ. Rugged, reliable, and easy to use, it is ideal for continuous process monitoring applications where it is difficult and/or costly to shut down the line for probe servicing or where side streams or fast loops are not appropriate. The probe is mounted in a standard size process flange for easy installation. Periodic probe cleaning and referencing can be performed without interrupting the process flow. The Shuttle Probe matches perfectly to any Guided Wave dual-beam spectrophotometer.

Unique Operation

Guided Wave’s Shuttle Probe consists of two transmission probes connected by a threaded, precision-machined coupler that also functions to accurately set a fixed and reproducible pathlength. After coupling, the two transmission probes become a one-piece sensor that is inserted through the heart of a durable process flange. Carefully engineered gland seals prevent process leakage thus facilitating safe operation. The area where the light interacts with the sample, the sample path, can be easily removed from or "shuttled" out of the process by firm but gentle tugs on either end of the probe. By design the forces are balanced resulting in a negligible ejection force on the probe. Thus the critical cleaning of the optical windows and subsequent probe referencing are possible without having to interrupt the process.

Wide Operating Range

The Shuttle Probe is designed to operate over a range of temperatures and pressures up to the limits imposed by the Class 150 or 300 flange and the gland seal material, typically Teflon™. This probe halves are available in four standard lengths: 8”, 12', 18', and 24" (other lengths are available by special order). The pathlength is determined by the coupler which is available in many standard sizes from 1 to 62 mm. Custom paths are also available.

High Light Transmission

Like all Guided Wave probes, the Shuttle Probe provides exceptional optical performance. Typical transmission is 38% averaged over all wavelengths in the 800 to 1600 nm region. That means more signal, lower measurement noise and lower limits of detection. Of course, the Shuttle Probe's optics are permanently aligned at the factory. There is no need for any optical adjustments in the field. Nor any chance for optical misalignment to occur under normal processing conditions or during servicing.

Specifications

Probe Length (in)	8; 12; 18; 24; (custom lengths available on request)
Pathlength (mm ± 0.10 mm)	1; 2; 3; 3.5; 5; 10; 12; 15; 20; 25; 37; 50; 62 (custom lengths available on request)
Probe Diameter (in)	0.625
Spectral Range	UV-VIS (200 – 600 nm); VIS-NIR (380 – 1100 nm); NIR (800 – 2100 nm)
Optics	Fused silica (UV-VIS); BK7 (VIS-NIR and NIR)
Fiber Diameter (µm)	200; 300; 400; 500; 600
Fiber Connectors	SMA 905 standard; (FC and ST on request)
Fiber Types	High-OH (UV-VIS); Low-OH or Ultra Low-OH (VIS-NIR)
Optical Efficiency (%T)	> 18% from 800 nm to 1600 nm
Temperature Range	-20 °C to 260 °C (probe only) {Maximum handle temperature 50°C}
Pressure Range	0 psi to 2000 psi [0 – 138 bar] (probe only)
Body Material	SS316 standard (SS304, SS316L, Hastelloy, Monel, Titanium, and Nickel available)
Window Material	Sapphire
Window Seal	Au alloy braze
Flange Sizes	1-½”; 2” 3” Class 150 and Class 300
Flange Ratings	Temperature and pressure per ASME/ANSI B16.5 1988

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