generally transmitter power supply having some range(12v to
35v) but the out put(4-20 mA) must same for given input.If
we vary the power supply voltage then output mA also to be
change according to V=IR. Is there any voltage regulator
in the transmitter ?
Answer / kyle condran
Transmitters act as a current source so the voltage drop across the Tx will change anyway in order to provide the correct current out. As long as the supplied voltage is in the range of the Tx, ie enough to power the unit and drive the signal, it will not affect the signal.
Ohms law get tricky when there is a "constant" current source in the loops
| Is This Answer Correct ? | 7 Yes | 0 No |
Describe all types and levels (4-20mA, 0-10V, mV, pulse, etc.)of analog and digital I/O used in process control application.
Coriolis flow meter coil supply is 24vdc but why still we given 230ac for this transmitter let me explained detailed review please
give some question relative instrument fitter?
WHAT IS INSTRUMENTATION?
What does it mean 3/2 sov
if my flow is 20000 m3/h than which range of DPT i have to use????
whey we conect ammeter in series and voltmeter in parallel in circuit
Sir, I want junior executive, Instrumentation question papaer for IOCL, Plz send to arabinda.ghosh83@gmail.com
What is the main three inputs of DCS?
what is hart communicater? can u give brief explanation about this issue?
Why we not use 2-20Ma or 1-20Ma
what is input and output cards of plc needs to be hot swappable mean
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)