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This is a fantastic resource!

 Looking for more information? Try these excellent links from our valued sponsor Emerson.
- Technical papers
- Technical Data Sheets and Reference Information from Emerson, loads of great papers and information here.
Instruments for use in Safety Instrumented System (SIS) Applications
- Quick Installation Guides 
- Application Notes-Useful notes across a wide range of industries

Other Useful Links

Instrument  Engineer's pocket guide - you have to register but it is worth the effort! Thanks to IDC Technologies

What is Signal Isolation? - In most processes there are pieces of electronic measurement and control equipment from many different manufacturers. The signals from these instruments are interconnected to each other and to sensors, transducers and output devices connected in the process loop. In any such measurement and control system there are several electrical interfacing problems that are likely to occur, all of which can be solved by incorporating the appropriate isolation between the signals. This excellent article from our sponsor  Weidmuller addresses this.

The Expression of Uncertainty and Confidence in Measurement - This is an updated version of the UKAS guide to uncertainty. M3303 gives information on understanding and implementing international requirements for evaluation and reporting of measurement uncertainty.  From the United Kingdom Accreditation service.

Fundamentals Of Gas Measurement - D. A. Tefankjian - In any field of endeavour for a person to completely understand the endeavour, he or she must have a knowledge and an understanding of the fundamentals involved. People can do well in the performance of their work without knowing the basic principles, but to excel and progress knowledge of the fundamentals is necessary. This is particularly true if one’s work is technical in nature - Includes – Units of Measurement, Behaviour of the gas molecule, property of gases, the gas laws along with the methods and means of measuring gas -From CEESI

Scroll down and click on the hyperlinks below to access some great ICEweb Instrumentation information pages on the areas detailed

ANALYSERS

FIELDBUS

FLOW

INTRINSICALLY SAFE  AND OTHER "Ex" EQUIPMENT

LEVEL

PRESSURE

SAFETY INSTRUMENTED SYSTEMS

SPECIFIC GRAVITY
Determination of Specific Gravity of Gases: Fundamentals and Instruments - Faruk Civan - Specific gravity is one of the basic properties used for characterization and measurement of gases. Instruments used for determining specific gravity are called gravitometers. There are also methods by which specific gravity can be determined indirectly. Accurate determination of specific gravity is essential for accurate measurement of gas flow rate - from CEESI

TEMPERATURE

TUBING AND FITTINGS

VALVES