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Transmitters 4-20mA Current Failure Alarm Limits

S Bharadwaj Reddy
4-20 mA instrumentation and controls usually support a signal range slightly below 4 mA and above 20 mA. For transmitters, current values below 4 mA and above 20 mA are...

Instrumentation Engineering Standards Questions & Answers

S Bharadwaj Reddy
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...

Electrical & Instrumentation QC Interview Questions

S Bharadwaj Reddy
Electrical & Instrumentation QC Questions  1. Define ITP. Answer: All inspections shall be done on the basis of approved ITP (Inspection Test Plan) which consists of the following sections; Activity...

NAMUR NE107 Standard

S Bharadwaj Reddy
Process variables and manipulated variables are the most important pieces of information from the devices. NAMUR has identified that the status of the devices themselves is also important to help the...

Instrumentation Standards Questions and Answers

S Bharadwaj Reddy
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...

Ex ic Intrinsic safety Standard

S Bharadwaj Reddy
What is Ex ic ? Ex ic is a form of intrinsic safety protection for electrical apparatus in flammable atmospheres. It is a logical extension of the long-established Ex ia...

Basics of Explosion Protection

S Bharadwaj Reddy
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...

Basics of Electromagnetic compatibility (EMC)

S Bharadwaj Reddy
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,...

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