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The basics of analyzer sample systems
Written by Ian Verhappen
Included in this article are two
spreadsheets for calculating pressure drops:
Pressure
drops in a liquid line
Pressure drops in a vapour line
Process
Analyser Sample Conditioning System Technology Book
This book provides both novice and
experienced technologist with the technical background necessary to choose
sample conditioning system components that will allow the process analyzer
system to function reliably with minimal maintenance.
The conditioned process sample presented to the process analyzer should be
of similar quality to the calibration material used to zero and span the
analyzer. Filling a long-standing void in the process field, this book
addresses the system concept of Process Analyzer Sample-Conditioning
Technology in light of the critical importance of delivering a
representative sample of the process stream to the process analyzer.
Offering detailed descriptions of the equipment necessary to prepare
process samples, and listings of two or more vendors (when available) for
equipment reviewed, Process Analyzer Sample-Conditioning System Technology
discusses:
• The importance of a "truly representative sample"
• Sample probes, transfer lines, coolers, and pumps
• Sample transfer flow calculations for sizing of lines and system
components
• Particulate filters, gas-liquid and liquid-liquid separation devices
• Sample pressure measurement and control
• Enclosures and walk-in shelters, their electrical hazard ratings and
climate control systems
 10.09
CT76
Modular Substrate and Component System
- This bulletin from ICEweb sponsor Circor
describes why this is "State of the Art" for modular
systems.
Modular
Substrate Sampling System (µMSł™) -
An excellent presentation from CPAC
Grab
Sampling Systems: Maintaining Quality and Safety
-The need for representative samples plays a critical
role in ensuring product verification. Yet sampling
directly from the process often includes the risks of exposure to the
operator as well as contamination and pollution to
the environment. The DOPAK® sampling method reduces such risks
with its patented design and simple method of operation. Thanks to Dopak
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New Sampling/Sensor Initiative
(NeSSI) - New sample system technology shows great promise.
10.09
Rethink
Sample System Automation
- NeSSI provides new tools to tackle the challenges and improve
performance
- By Robert N. Dubois, consulting analytical specialist - Thanks to
chemicalprocessing.com
10.09
NeSSI™
Generation II Specification
- A Conceptual and Functional Specification Describing
the Use of Miniature, Modular Electrical Components for adaptation to the
ANSI/ISA SP76 Substrate in Electrically Hazardous Environments -
This functional and conceptual specification is based on
the use of the miniaturized, modular analytical systems
designed to the ANSI/ISA SP76.00.02-2002 standard substrate. This 2nd
generation specification deals chiefly with
integrating electrical components such as sensors and actuators
(collectively referred to as transducers) onto the
substrate in a manner suitable for use in electrically hazardous areas
commonly found in petrochemical, refining and
chemical facilities - Thanks to CPAC
10.09
Streamline
Your Sampling System
- Selecting the right stream selection assembly can improve performance
- John Wawrowski, Doug Nordstrom and Joel Feldman - Thanks to
chemicalprocessing.com
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Other Resources
Process
Analyzer Sample Conditioning System (SCS) Design - A
comprehensive list of Analyser Sample System resources from
our valued sponsor Circor
Instrumentation Technology
8.09 Breathe
Easy - Darrell Leetham -For many organisations
today, one aspect of the manufacturing process that needs to be monitored
and controlled, for both efficiency and environmental benefit, is gaseous
emissions - Plants are constantly looking for means to increase production
and decrease costs. Increases in production are generally associated with
an increase in fuel consumed and, in turn, a subsequent increase in
emissions generated. In addition, regulatory entities are increasingly
implementing standards and setting requirements for monitoring and
reporting data on plant emissions. In order to improve efficiency
throughout a manufacturing process and at the same time meet the needs of
sustainable development goals, industry is finding an increased need for
robust, reliable and accurate gas analysis methods. To meet the needs of
this demand, different technologies for gaseous emissions sampling and
analysis have been developed over the years. One particular technique is
to extract a gas sample and dilute that sample prior to analysis. This
article explains some advantages of the dilution extractive method. From
Thermo Fisher Scientific and processonline.com.au.
10.09
Center
for Process Analytical Chemistry
- CPAC, established at the University of Washington
in 1984, is a consortium of Industrial, National Laboratory and Government
Agency Sponsors addressing multidisciplinary challenges in Process
Analytical Technology (PAT) and Process Control through fundamental and
directed academic research. The present CPAC program
can be summarized by two main components;
(1) new measurement approaches including the
miniaturization of traditional instrumentation and the development of new
sensors and non-traditional instruments.
(2) mechanisms for interaction, collaboration, and communication of Center
activities, research programs, and information related to process
analytical technology (PAT)
among sponsors, other universities and academic departments, government
agencies, and the general measurement and control community. CPAC
has an established track record in fostering academic/industrial/national
laboratory interactions, which aim at bridging the gap between basic
research and full-scale process/product development.
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