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
1. what is modbus cable? 2. what kind of communication we are using for the interface of DCS, ESD and Third party cabinets? 3. What is serial communication and peer to peer communication?
the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)
What is Erosion in a control valve?
Why we are using reverse action in displacer types level transmitters on some Vessels?
What is compensation for flow ? Why we use compensation ? What are the factors of different compensation ? We not use then what problems may happen ?
what are the diff. in servo and regulatory control?
can anyone tel the syllabus or previous year question paper for BHAVINI(EIE)2014.
give eg of how I/P is used in control loops
What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus
What is standard procedure of manual mapping in Radar type level transmitter?
HOW TO CALCULATE ACCURACY OF AN INSTRUMENT. WHICH IS COMPITABLE FOR USE.
Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in
Please send me the sample question of Instrumentation of hpcl/iocl exam. my mail id hihi_kiholo@rediffmail.com
What is motion balance principle?
I need to know steps to Calibration Valve Guard......