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Instrumentation Engineering Standards Questions & Answers

S Bharadwaj ReddyApril 12, 2017March 17, 2019

What does “ATEX” stand for? “ATEX” is a French acronym meaning “Atmosphere Explosible”, and encompasses a series of standards pertaining to equipment and personnel within hazardous locations. What does “Zone...

Instrumentation Standards Questions and Answers

S Bharadwaj ReddyJune 25, 2016April 4, 2020

Study about the Instrumentation Standards Questions & Answers. Get Ready for the Instrumentation technical interview round. Instrumentation Standards Questions and Answers Questions & Answers on Ingress Protection What does IP...

Basics of Explosion Protection

S Bharadwaj ReddyJune 17, 2016April 8, 2018

Among the variety of products and intermediate products of the chemical and industrial process industries there are many which can form explosive mixtures with other products or with the oxygen...

Identification of Equipment

S Bharadwaj ReddyJune 16, 2016April 18, 2019

Equipment intended for use in hazardous areas must be uniquely identified by the manufacturer. To comply with EN 50014 or EN 60079-0 / EN 50020 or EN 60079-11 the equipment must be...

Basics of Electromagnetic compatibility (EMC)

S Bharadwaj ReddyJune 14, 2016September 5, 2018

The measuring electronics of field transmitters like flowmeters are constantly becoming more efficient and more compact. Digital data processing with its microprocessors has opened up new avenues for new communications,...

Zone vs Class / Division

S Bharadwaj ReddyMay 15, 2016July 24, 2018

In 1947, the NEC first recognized different levels of risk exist in hazardous locations.Consequently, it established Division 1 and Division 2, to provide a means to treat the issue. This...

Instrument Technician Interview Questions and Answers

S Bharadwaj ReddyOctober 14, 2015May 2, 2019

This article provides the Instrument Technician Interview questions and answers. Instrument Technician Interview Field Instrumentation What does ARRH and # refer to in valve specification? AARH refers to average roughness...

ISA codes for Process Instrumentation

S Bharadwaj ReddyOctober 12, 2015March 8, 2017

It is common to make letter combinations in PI&D diagrams according ANSI/ISA S5.1-1984 (R 1992) “Instrumentation symbols and identification”standard. In addition to the letter combination it is common with a...

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