Industrial Instrumentation and Control Networks

One Network Topology Is Not a Silver Bullet - Relationships Make the Difference: Engineering and Thought Are Critical in Determining the Optimal - Network Topology Solution - Ian Verhappen - A number of different industrial network topologies such as star or chicken foot are in use today for the various levels of the enterprise. The field level has different environmental and bandwidth requirements than the control system backbone. These requirements significantly influence the decision-making process of today's automation professional - from Industrial Automation Networks and www.controldesign.com.

The Following Links are from Relcom;

Corrosion

Corrosion is a subject that any Instrument Engineer should have knowledge in as selecting the correct equipment and process instruments for a plant is dependent on it. This page provides some excellent technical information about corrosion, forms of corrosion, corrosion effects, how to mitigate corrosion and corrosion monitoring and control. In addition there are Material Selection Guidelines and Corrosion Tables.

Corrosion Technical Information for Engineers

Dictionary of Metal...

Instrument Enclosures, Sunshades and Supports

Go to Specific Subject: Instrument Enclosures, Sunshades and Supports | Checking for Instrument Gas Leaks | Other Useful Information on Instrument Valves and Accessories |

 

Instrument Enclosures, Sunshades and Supports

It is essential that Instrument Enclosures and Sunshades are considered where Instruments are subjected to a wide range of environmental factors which might impair the efficiency and operation of process instrumentation, such...

Hydraulics

Hydraulic Technical Library - This is an excellent comprehensive site with heaps of Maintenance and Troubleshooting Links, Application Guidelines along with Formulaes and Technical reference data. From hydraulicsupermarket.com.

Hydraulics Calculations, Formulas and Rules of Thumb - a useful range of calcs, formulas etc - from hydraulicsystems.com.

Hydraulic Troubleshooting - Many of the failures in a hydraulic system show similar symptoms: a gradual or sudden loss of high...

Safety Instrumented Systems

Instrumented Protective Functions and Emergency Shutdown (ESD) and Process Shutdown (PSD) Systems

This very Comprehensive Resource has numerous links to Safety Instrumented Systems Technical Papers across a broad range of subjects and is Indexed Alphabetically - please click on the bookmarks to go to the relevant section that interests you. Design of Safety Instrumented Systems | Alarm Management in Safety Instrumented Systems | Front End Design of a Safety...

Safety Instrumented Systems

Instrumented Protective Functions and Emergency Shutdown (ESD) and Process Shutdown (PSD) Systems

This very Comprehensive Resource has numerous links to Safety Instrumented Systems Technical Papers across a broad range of subjects and is Indexed Alphabetically - please click on the bookmarks to go to the relevant section that interests you. Design of Safety Instrumented Systems | Alarm Management in Safety Instrumented Systems | Front End Design of a Safety...

Wireless Instruments and Instrumentation

This Instrument Engineering page provides many links to Wireless Instrumentation relevant subjects. It includes Free Technical Information for Instrument Engineers and Technicians.

Go to Specific Subject: Wireless Instrument System Design | Benefits of Industrial Wireless Instruments | Wireless Communication Reliability | Wireless Instruments for Control | Wireless Ethernet | WirelessHART | Wireless Interference Issues | Wireless Instruments and...

Humidity Measurement and Instrumentation

General Humidity Measurement Technology

A Technical article on General Humidity - Humidity Definitions, Details on Relative or Absolute Humidity, Practical Requirements of Humidy Measurement, State of the Technology and functional principles - from Vereta.

Notes on Relative Humidity - from the University of Illinois.

Atmospheric Moisture - Sample chapter from the textbook Meteorology Today by C. Donald Ahrens. (PDF 1.5MB 22 pages) - Thanks to...

Humidity Sensors for Industrial Applications

It could be argued that humidity plays a part in every industrial production process. The very fact that our own atmosphere contains water vapour bears witness to this fact even if it is only that the end product is likely to be stored and eventually used in our environment; therefore, the product’s potential performance under varying conditions of humidity must be known. The extent to which humidity plays a part in any given production process...

Oil in Water Analyser

The need for an In-Line Oil in Water Monitor - A.W. Jamieson Shell U.K. Exploration and Production, Aberdeen.

The following technical papers and application case studies are compliments of Jorin Ltd:

On-line determination of particle size and concentration (solids and oil) using ViPA Analyser - A way forward to control sub sea separators - A paper by Dr. Kami Nezhati, Senior Development Engineer, Merpro Ltd, Nick Roth, Technical Director, Jorin Ltd and Rick Gaskin...

Oxygen Analyser

Oxygen Measurement for Combustion Optimisation - Combustion optimisation for boilers and other combustion processes has long been an important issue with increasing fuel prices. There are many end users in Australia with fuel bills inexcess of one million dollars. With typical costs of combustion optimisationsystems, and possible fuel savings in excess of 5%, pay-back periods can be veryshort. This economy is based primarily on the measurement of oxygen in the fluegas - from...

pH Measurement and Instrumentation

pH Measurement - A sample chapter from the title Practical Analytical Instrumentation in On-Line Applications - This chapter shows the need for pH measurement, Describes the properties of water, Defines pH, Demonstrates the principle of both the measuring and reference electrodes and their relationship to each other, Explains the Nernst equation and its dependence on temperature, Lists the various sources of error in the measurement of pH and shows how...

Analyser Sample Systems

Analyser Sample Systems require experienced design engineering in order to achieve a representative, conditioned sample for analysis. Engineering design requires careful selection of materials, temperature and pressure conditioning along with correct process data. Don't forget, it is generally accepted that analyser sample systems are the victims of the Pareto principle (i.e., 20% of a system consumes 80% of the resources) since they are responsible for 80% of...

The Need for an In-Line Oil-In-Water Monitor

A.W. Jamieson
Shell U.K. Exploration and Production, Aberdeen

Summary

In-line oil-in-water monitors have long been wanted for monitoring overboard discharges from oil and gas producing facilities, or for controlling water handling systems. In general their performance has fallen far below operational requirements. New techniques and steadily increasing demands for better measurement capabilities mean that systems are becoming available with the...

Data Loggers

Data Loggers are very useful instruments which record and monitor instrument measurements over a defined time frame. They have many applications across a broad spectrum of industry including Agriculture, Buildings, Chemical, Civil Engineering, Electrical MCC's Switchgear etc, Environmental, Food, Medical, Meteorology, Mining, Oil & Gas, Pharmaceutical, Solar, Transport, Water and Zoological. For Control Systems they can be utilised for Sequence of Event applications. A data...

Instrument Signal Isolation

Signal Isolators, Converters and Interfaces: The "Ins" and "Outs" - Whether you call them signal isolators, signal converters or signal interfaces, these useful process instruments solve important ground loop and signal conversion challenges everyday. Just as important, they are called upon to do a whole lot more. They can be used to share, split, boost, protect, step down, linearize and even digitize process signals. This guide will tell you many of the important...

Instrument Signal Concentrators

Remote Emergency Shutdown Device Improves Safety and Performance at Oil Production Platform - Jim McConahay and Richard Conway - When Italian multinational oil and gas company ENI Petroleum needed help designing a real-time communications link to its Devil's Tower oil well platform off the coast of Louisiana, they turned to Moore Industries for help. By integrating our NCS NET Concentrator System® into their communications system, ENI Petroleum has developed a...

Instrument Signal Conditioners

Extracting HART Data from Smart Instruments - According to the FieldComm Group (formerly the HART Communications Foundation), there are more than 30 million HART-enabled instruments installed in chemical and process plants worldwide, and most process transmitters made today are HART compatible. The HART digital signal often contains valuable process measurements and other variables including instrument status, diagnostic data, alarms, calibration values and...

Specification for 10,000 PSI Working Pressure Threaded Pipe Fittings

Kindly supplied by Prochem 

Scope

This specification covers 10,000 PSI working pressure screwed pipe fittings manufactured in accordance with the design and material requirements as listed in the following clauses.

Reference documents

ASTM Standards:

  • A182/A182M Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High - Temperature Service.
  • A276 Specification for...

Analytical, Instrumentation and Mechanical Heat Tracing and Tube Bundles

A Tubing Bundle consists of a small diameter tube or group of tubes packaged in an insulated, weatherproofed jacket. It may be steam or electric traced to provide freeze protection or temperature maintenance. Tubing Bundles are used in Instrument hook-up and impulse lines, Analyser sample transport, Insulated Tubing and Jacketed Tubing. This page provides many relevant free technical references to Analytical...

Excess Flow Valves

(Provided by Circor International)

Excess Flow Valves are a useful safety accessory for an Instrument Hook up in that they limit the potential leak if a fitting or tubing fails for some reason.

Excess flow valves close automatically to ensure system safety

Circle Seal XVH Series excess flow valves automatically close leak-tight when a flow spike occurs, preventing uncontrolled release of system fluid to ensure a safe and reliable working environment at low...

Analytical, Instrumentation and Mechanical Heat Tracing and Tube Bundles

A Tubing Bundle consists of a small diameter tube or group of tubes packaged in an insulated, weatherproofed jacket. It may be steam or electric traced to provide freeze protection or temperature maintenance. Tubing Bundles are used in Instrument hook-up and impulse lines, Analyser sample transport, Insulated Tubing and Jacketed Tubing. This page provides many relevant free technical references to Analytical...

Monoflanges and Instrument Manifolds

Jump to the Various Sections of this and other Instrument Fittings and Tubing Page: Monoflanges and  Instrument Manifolds | Frequently Asked Questions associated with Monoflanges and Instrument Manifolds | Instrument Monoflanges | Instrument Manifolds | Instrument Fitting Technical Information | Gauging Instrument Threads and Fittings |

 

Monoflanges and  Instrument Manifolds

Monoflanges and Instrument Manifolds are used as an alternative to multivalve...

Prochem Pipeline Products

Street name:

6 Forge Street

Suburb:

Welshpool

State:

Western Australia

Post Code:

6106

Postal Address:

PO Box 638
Cloverdale
WA 6985

Phone:

618 9458 7777

Fax:

618 9351 8170

Contact Names:

(1) Ian Barnett. Mobile number 0419 812221
(2) Peter Winter. Mobile number 0419 812222

Email:

This email address is being protected from spambots. You need JavaScript enabled to view it. 

Web Site:

Prochem...

Flow & Level Calibration Notes

Differential Pressure Transmitter Calibration

Introduction

In the Differential Pressure Transmitter, as flow increases, the differential pressure increases, and when flow decreases the differential pressure decreases. For example, an orifice plate is placed in a pipe to restrict the fluid flow. This restriction creates a pressure drop that can be converted to flow rate. The differential pressure transmitter measures the pressure drop created, by...

Pressure & temperature calibration notes

Electronic transmitters

The Importance of Calibration

Properly operating instruments are critical to plant safety and product quality. To calibrate process instruments, it is essential that controlled conditions and measurement signals present in the actual process installation are simulated.

Input and Output Measurement Standards

For an analog electronic pressure transmitter a variable signal source provides a pressure input at the same...

Safety Requirements Specification in a Capital Project Environment

Dr. Angela E. Summers, P.E., President, SIS-TECH SOLUTIONS, LLC
PMB-295, 2323 Clear Lake City Blvd, Houston, TX 77062-8032
713-320-4777 (phone) 281-461-8109 (fax) This email address is being protected from spambots. You need JavaScript enabled to view it.

Presented at the Texas A&M Instrumentation Symposium 2000
Submitted for publication in Control Engineering

Abstract

The safety requirement specification (SRS) is a new documentation requirement of the safety system standards. It must be...

Samson Controls Pty Ltd


Street name: U13-15/61-71 Beauchamp Road
Suburb: Matraville
State: NSW
Post Code: 2036
Postal Address: As above
         
  Sydney  Melbourne  Perth Brisbane
Phone: 61 (0)2 9316 7800 03 9645 7393 08 9248 7686 0755946705
Fax:  61 2 9666 5963  03 9645 7394 08 9248 7689 0755946255

Contact Names

Managing Director:  Mr Jacky van Wolput

Techniques for Assigning A Target Safety Integrity Level

Angela E. Summers, Ph.D.
This paper was published in ISA Transactions 37 (1998) 95-104.

Abstract

The new ANSI/ISA S84.01-1996 (1) Application of safety instrumented systems for the process industries, standard requires that companies assign a target safety integrity level (SIL) for all safety instrumented systems (SIS) applications. The assignment of the target SIL is a decision requiring the extension of the process hazards analysis...

Using Instrumented Systems for Overpressure Protection

By Dr. Angela E. Summers, PE
SIS-TECH Solutions, LLC - Houston, TX

Prepared for Presentation at the 34 th Annual Loss Prevention Symposium, March 6-8, 2000 Overpressure Protection Alternative Session
Copyright © SIS-TECH Solutions, LLC, December 1999

Accepted for publication in Chemical Engineering Progress

AICHE shall not be responsible for statements or opinions contained in papers or printed publications.

Abstract

Industry is...

Viewpoint on ISA TR84.0.02 – Simplified Methods and Fault Tree Analysis

Angela E. Summers, Ph.D., P.E.
President, SIS-TECH Solutions, LLC
PMB-295, 2323 Clear Lake City Blvd Houston, Texas 77062-8032
713-320-4777 (phone)

§ 281-461-8109 (fax) www.SIS-TECH.com

Accepted for publication in ISA Transactions

Abstract

ANSI/ISA-S84.01-1996 and IEC 61508 require the establishment of a safety integrity level for any safety instrumented system or safety related system used to mitigate risk. Each...