Thank God, ISA has wireless Internet in this conference room! My thumbs were beginning to die from doing the “Blackberry Prayer” too long.Sherman on NeSSI, continuing:
Bob showed picures of actual products illustrating the principles of the S76 sample conditioning system…a modular system designed to maximuze efficiency and minimize costs, developed specifically for the process analytical instrumentation market, incorporating a single block and tubeset architechture for simplicity…it has become the perfect solution for most gaseous and many liquid sample conditioning systems.
The idea is to provide a standard sampling substrate with easy maintenance, lower internal volumne and surface area, external space savings and on-board microprocessors and ASICs (at least in the future).
Sherman went over the NeSSI roadmap and showed what will be coming. The current NeSSI specification is “mechanical: standard format control components.” Next will be GenII: “Electrical/transducers/bus protocols, IS Ex). GenIII will provide for standardized microsystems including complete analytical devices and advanced control components.
Although the S-76 standard is new, (2002), there are already substantial numbers of S-76 compliant components:
-switches, sensors and guauges
Spectrophotometer Cell (UV/NIR fiberoptic)
Analyzers on a block: UV/VIS, NDIR, RI
Gas Flow (mass basis, all 2-block format, except HoribaSTEC[1 block])
bypass and particulate
cylindrical format membrane separator
Rotameters (armored and light duty)
Emerson/Brooks makes both, and has 6-12 week or worse delivery
Buehler makes light duty
use common adaptors
King (best delivery, light duty, 2 weeks)
ADI diaphragm pumps
HNP Mikrosysteme GmbH positive displacement (gear pumps)
These same three companies are the only vendors making NeSSI footprint substrates.
Delta M (the best, according to Sherman)
Moisture, Water switches
NeSSI compliant ball, 2 and 3 way; check and relief valves are available
The challenge is to reduce Life-cycle cost of sampling sywtems 35-70%
Integrating analyzers and sample systems
Field mounted and self contained
Smart incorporating diagnostics and control
Open-architecture data systems
Plug and play maintenance
Standard designs for generic applications
Modular sample system components developed in the semicon industry, and standardized by ANSI/ISA-76
Application Specific Integrated Circuits (ASICs) provide the smart components
Open communication architectures: bus protocols provide data “transnipulation.”
Waltnote: Whoa! There it is again, folks, end users need open architectures!
Field-mounted and self-contained
–can work anywhere from the poles to the tropics
No analyzer houses
No long sample transport lines
Minimum utilities’ usage
Reduced design time, build cost, life-cycle cost
Smart with Diagnostics + Control
–full system information available
–remote modificatio of parameters
–control of P, T F.
Reduced Life-cycle costs