WHAT IS A CALLIBRATION? WHAT IS MEEAN BY LOOP CHECKING
INCLUDES PRESURE, THERMOCOUPLE,TT,DT?

Answer Posted / nagabalan

Loop check used to check the Field Instruments activity and
continuity from Field to DCS/PLC.

Field Instruments forced/simulated from filed and value
will be confirmed with DCS/PLC.

For Valves,value simulated from DCS/PLC and position will
be confirmed from the field.

Is This Answer Correct ?    5 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is zone,loop/fire alarm system?

2078


steps for installing orifice plate?

1359


Please tell me details about Sox,Nox,SWAS analyser????

3282


what are the steps I have to deal with?

1752


What is the use of GMV in turbine?

3729






what should he know if he is an assitent engineer instrumentation in cement industries of experience of 10 - 15 year.

1619


1.what is the effect of vapour presuure in orifice plate flow measurement 2.which is more effective 2 pressure sensors or one single differential pressure sensor in orifice plate measurement 3.how to design a v/i converter and i/v converter 4.how many type of thermocouple are there 5.how many leads are there in thermocouple measurement 6.how pressure sensors are connected in level measurement in differential pressure method 7.what is the output of capacitive pressure sensor (ac or dc),how its o/p is signal charactarized 8.what is the physical meaning of discharge coeeficient,why it is calculated,orifice plate what is its value,why it is less than 1,Q at upstream is equal to or not equal to Q at downstream of orifice plate why?what is vena contracta in orifice plate 9.why rotameter is called variable area flowmeter,it can measure flow even if area is not varying,why it is made tapered 10.design a 10 bit counter ,which counter you will prefer 11.how to remove self heating error in RTD 12.which is more sensitive pt100 or pt50 13.why thermocouple are connected in parallel 14.what is lead contact error in RTD,how to avoid 15.what is P,PI,PID,PD controller,why there is no ID controller 16.what is override,split range,sequential,ratio,feedforward,cascade controller 17.why we moved from SR to JK and then JK to master slave JK flipflop,give correct reason 18.how to measure level of a closed container which contains vapour and liquid,remember no vapour gas should be leaked,so ultrasonic and capacitive is not an option,design another method 19.how to design horse race counter including sensors and signal conditioning element 20.what is bevelling

1958


I WANT SECURITY PAPER MILL, HOSHANGABAD TEST PAPER.KINDLY SEND TO MY MAIL ID

2295


How does your previous experience relate to the job you are applying for ?

1556


How to convert mmWc(mili meter water colam) to tph(ton per hour)?

488


what is the minimum power (P=VI)to produce a spark?

1557


Explain PID controller tuning & any one method used for it.

6998


I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.

1466


What inherent design and operating principles are included in a modern control system to use predictive maintenance practices to increase overall system reliability?

1603


Reason for capillary type dp level transmitter fluctuation

1514