What is difference between loop and zone ?
Answer Posted / dsa
Zones are based on hazardous area classifications, zones r catergorized based on explosive gases which could be present in the area.
Loop are basically open or closed. Basically in instrumentation a loop is defined from the starting point which is sensor to the end point I.e system. This irrelevant to whatever system u use.
If your question isn't answered kindly elaborate or provide more details and not just ask general questions!
Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?
What are advantages and disadvantage of the ac supply load cell?
What is the difference between working pressure and calibration pressure of a control valve
hi my name is rakesh patel i just complited my be in instrumentation & control now i am going to working as a validation engineer in a poject department so what is a scope in a future as a validation engginer ? what line is good for me can any bady give me complete solution please? your regard rakesh patel
how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i
What is difference between ESD and PLC please Explain me clearly.
is motorized valve closed when power shutoff?
Positioner usage.
which type of zones used for boiler? & why ?
Who to difference between analog in & analog out in dcs?
How to work togather like sov,limit switch,proxy switch and booster in xv
How to regulate the flow of Air in 4" line, with max flow of 330 nm3/hr and Pressure of 0.5 bar? please suggest the type of instrument required.
why we us isolation barrier in hazardous area how it works to protect the area and please clarify its current flow.
what is function of SCADA , and how is it work, explain with difination
Draw a simple circuit for a well head control panel used to protect the well against fire, leak, blockage, ESD, & controls the operation of one downhole & one surface safety valve. Explain the operation and controls