Why 4mA-20mA current loop selected as standard ???
because the ma will not drop during any resistance of the wire. voltage can be drop. regarding the 4 ma its live zero mean running condition. we cannot the confirm that our instrument live or not.
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in rotark mov in display err msg showing how to remove the error
tell me the temp range of rtd?
1)unmovable objects have frequency or not?if that object have frequency,how do we measure and transmit? 2)how do u measure the continuity without multimeter? 3)we put 24volt dc supply in railway track how many distance it is traveled without voltage drop?
The document / drawing that is primarily used in depicting the “Bill of Materials (BOM)” of piping system is the
Why do you want to work here
i hav applied for the post of engg. in iocl so please require the past test papers fro instrumentation engg please please help me and send me the papers or tell me the pattern and type of ques asked in examination......
what is vfd(variable frequency drive)?type of vfd.
why gray colour is choosing to all instrument panel.why not choosing other colour?
Please can anybody help for control valve sizing step by step procedure?
What is DeltaV?
Is there’s power on the bus (if so, state whether on the signal bus, or on a separate in the following: a) HART b) Profibus DP c) Profibus PA d) DeviceNet e) Foundation Fieldbus
what is the input of ph sensor and meter during the calibration time and what is the output?
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