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why cant we use mV instead of mA?
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Answer Posted / rakesh kumar n
There won't be any current drop in mA, but when you consider
Voltage there will be Voltage drop.
-->main Reasons for Voltage drop
#Distance between the Field and Control Room(more the
Distance and more will be the Voltage drop)
#Consider if the Distance is small between the Field and
Control room,then also there will be Voltage drop,because it
is milli Volt
#Theory Sum of the incoming current and Out going current
is always Zero 20mA=20mA by KCL, if you find any thing
wrong,you can check it in Transmitter Outlet and the DCS
Inlet will have the same milli Amp.
Thank you
Rakesh Kumar.N
INSTRUMENTATION ENGINEER
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