NAMUR NE107 Standard
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...
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Basics of Explosion Protection
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
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)
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
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...
IP Ratings and Equivalent NEMA Ratings
IP Ratings (Ingress Protection) and Equivalent NEMA Ratings Explained IP Ratings An IP rating contains two numbers (i.e. IP65) in most instances which relate to the level of protection provided...
ATEX Ratings, Intrinsic Safety, Hazardous Areas and Explosive Atmospheres
Please note that this page provides helpful information only, detailed reference should be taken from an appropriate accredited agency or organisation. Protection Concepts Zone Hazard Protection Concepts 0 In which...
Electronic Equipment Purging Principles & Standards
What is Purging? Purging/pressurization systems permit the safe operation of electrical/electronic equipment under hazardous conditions when approved hazardous location equipment is not part of the application or the equipment is rated...
List of Valve Standards
Listing of the basic specifications used in the design and manufacture of valves and fittings follows different valve standards like American Petroleum Institute (API) Standards, American Society of Mechanical Engineers (ASME), MSS,...