Agenda & Abstracts

CPAC 1999 Fall Meeting

Monday, November 1, 1999


8:30 Welcome and Introduction  Mel Koch (CPAC)
Peter van Vuuren  (ExxonMobil)
8:45 Smart Sensors  Bill Dodge (DuPont)
9:10 Sampling System Components Kevin Mracek (Swagelok)
9:35 Modular Sampling Systems Don Mayeaux   (A+)
10:00 Break
10:20 Advanced Modular Sample System Richard Hughes (Autoflow)
10:45 Smart/Modular SHS and Field Mounted Analyzers John Gajewski  ( Rosemount)
11:10 Break Out Session All
12:00 Adjourn


1.  Smart Sensors -- Bill Dodge, DuPont

     The presentation will stress the importance that all measurement validation information should be "local" to the analyzer. It is the analyzer that is responsible for validating the measurement to ensure high quality data is sent to its customer, the DCS system. Examples of several levels of measurement validation criteria will be highlighted.

2.  Modular Sample Conditioning System -- Donald Mayeaux, A+ Corporation

Most analysts agree that sample conditioning is a key element in obtaining reliable analysis with process analyzers.  It is the analyzers, however, which have received the bulk of attention for the past several decades.  Sample conditioning systems are currently comprised of components that have evolved from pneumatic or hydraulic service.  Only a handful of components were designed specifically for analyzer sample conditioning systems.  Also, construction methods for sample conditioning systems have changed little during the past 30 years. 

The time has come for innovative changes in component design and sample system construction techniques.  This paper will discuss a modular fabrication approach for constructing sample conditioning systems.  The modular design occupies less space and is easier to maintain than current systems.  The absence of tubing and fittings between components and the modular system's low internal volume are expected to significantly enhance overall system performance.  Also, this approach is expected to trigger innovation in the design of sample conditioning components.

3.  Advanced Modular Sample System -- Richard Hughes, Autoflow Products Co.

The Advanced Modular Sample System (AMSS) is a concept to both standardize and miniaturize sample systems for extractive process analyzers.  The AMSS utilizes a modular manifold design, whereby the components are joined to a common base plate that is ported internally to provide the necessary communication with other components and functions.  The AMSS occupies about 1/10th of the volume of conventional sample systems.  There are profound advantages for the AMSS with regard to standardized system performance and test specifications, as well as the facility for extremely rapid design, development and prototype.  Although there are initial cost savings with regard to fabrication, assembly and test of the AMSS, the greatest value to the user will be the total cost of ownership (TCO) for the field servicing and maintenance aspects of the equipment over time.  Other distinct advantages of the AMSS include, elimination of particle contamination formerly generated from numerous pipe and tube compression fittings, as well as the elimination of the inevitable leak paths associated with these fittings. 

Further goals include both the "smart " and the "redundant" AMSS.  These are schemes by which faults can be diagnosed at the system level, and possibly even to the component level, and problem sample systems can automatically be shut down, and switched to a ready, parallel redundant system, leaving the system operational. The inoperative sample system can then be replaced and serviced at the convenience of the operators.

4.  Smart/Modular Sample Handling Systems and Field Mounted Analyzers -- John John Gajewski, Rosemount Analytical  

 Rosemount Analytical Inc. has been developing Transmitter style analyzers that allows end users the opportunity to move the "point of measurement" into the field.

The advantages of this approach are, reduced sample lag time, resulting in improved process control and reduced nonrecurring costs.

A logical extension of this approach to measurement is "Smart/Modular" sample handling systems.

Rosemount Analytical Inc. is actively developing this approach for sample handling systems for inclusion with its family of Field Mounted analyzers utilizing whenever possible commercially available technology and components.

5. Fluid Components for Small, Smart, Sampling Systems -- Kevin Mracek, Swagelok

 Small, smart, and integrated sensor sampling systems place several unique requirements on the fluid components used.  System fluid components must be smaller/more compact, cleaner, more reliable, easily automated, and modular.  Several Swagelok products currently available or under development can be used to meet those needs. These products include valves and modular valves like the DA and T2, fittings like the VCR and Micro-Fit, regulators like the HF, and finally complete modular systems like IGC