What for barriers are used in DCS & PLC systems?
Answers were Sorted based on User's Feedback
Answer / dasa
Barrier's are associated apparatus, This is normally
used in safe area to hazardous area signal transmission
interface Purpose,and protect both equipments each other
from fault conditions. As well It is minimizing the energy
like a transducer of transmitted signal to hazardous area,
Which area is classified as minimum energy electrical spark,
can produce explosive with the atmosphere.Although it should
1,2 or 3 fault conditions can with stand, and made easy to
maintain hazardous area equipment.EX for hazardous area
instrument get faulty, if want to replace may need shout
down that area operation, its too troublesome.
Is This Answer Correct ? | 19 Yes | 2 No |
Answer / santosh mali
Barriers are used in only hazardous area,and for safety purpose.it is also used in distillation plants and for isolation.
Is This Answer Correct ? | 1 Yes | 0 No |
Somebody tell me in what way i need to prepare for csio pgrpe(adv instrum eng)interview?what all the quest can i expect?
warning lamp does not light, but it does light when the wire from the lamp going to the sending unit is grounded (the part that plugs into the sending unit) what does this indicate)?
What is exact difference between the panel earthing and system earthing in DCS system. What is the value of resistence.
why is the sleeve of the cable used for?
In 16' pipeline one pcv is installed which is controlled by PT installed at inlet of PCV.If Flowrate in pipeline increases what will happen to pressure at the inlet of pcv.
What is PID tunning
if we open the inlet of an air regulator ,how it will affect the out put of regulator? (out put of regulator is using to operate an on-off valve.it is an air to open valve,and valve is in open position.my doubt is air regulator will hold the valve in open or not,if there is no consumption or leak in regulator out put side ,we only loose the input pressure.)
Explain Gas Turbine startup and shutdown sequences
what is the difference between RTU & MTU in SCADA system?
i install a DP transmitter of Faugi on drum level of boiler but i face a problem in it when i engergize the transmitter the meter shows 0 or 100% no variation in it.the distance of two points is 19.5 inches, i am in trouble please suggest me what can i do it's very urgent Please reply me as soon as possible Best regards ikraam haider
in yokogawa prosef rd safety PLC how to data send frome local SCS to other SCS and other FCS
What denotes the 5/8mm in the 3300XL 5/8mm proximitor probe?