why we use 24v dc in instrument rahter than 230vac????
- 4 Answers
- 20715 Views
- I also Faced
- E-Mail Answers
Answer Posted / mohammed abbas
INSTRUMENTS ARE DESIGN TO WORK ON LOW VOLTAGE BY THE
MANUFACTURER LIKE,YOKOGAWA,HONEYWELL AND ROSEMOUNT.LOW DC
VOLTAGE 24 VDC WHICH IS COMPITIBLE FOR ALL THE CONTOL
SYSYTEM AND THE FIELD INSTRUMENT WHICH IS DESIGN WILL WORK
ON 24 VDC WHICH IS REQUIRE TO ENERGIES THE ELECTRONIC PART
ALSO.IF WE USE 230VAC MEANS IT IS DANGER BECAUSE WHICH WILL
CAUSE A ACCIDENT OF LIFE ALSO IF ANY UNSKILLED TECHICIAN
WORK ON THAT INSTRUMENT.24 VDC IS SAFE FOR HUMAN BEING AS
WELL AS LOW POWER CONSUME,WHICH IS COMPITBLE FOR ALL THE
CONTROL SYSTEM AND ALL THE INSTRUMENTS IS BUILD WITH
ELCTROIC WHICH IS FUNCTIONING ON LOW 12 TO 32VDC.ALL THE
INSTRUMENT DESIGN IS ON THE BASIS OF LOW VOLTAGE AND LOW
CURRENT ONLY.
| Is This Answer Correct ? | 12 Yes | 5 No |
Post New Answer View All Answers
A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe
How to calculate P,I&D value in PID controller ?
Can any one send me IOCL instrumentation question papers.. i dont know the pattern of the questions and what to prepare can any one help me on this .. my email id is anwarnishil@gmail.com
why fuse block is not used for AI signal?
In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?
I faced several time siemens ps2 positioner automatically getting Chang in it's set point direction after auto calibration So is there any causes biside this or any permissives ?
what is different between 2,3&4 wire rtd and how much maximum distance using plc to field.
How we calculate orifice plat size???
Can anyone send most commonly asked interview question in Oil & Gas industry
sir, give me placement papers and interview quistion of birla group company of copper.
Explain the difference between plc and cnc?
How to Calibrate Interface Level Troll in field
Why we are using DPT(Differential Pressure Transmitter) in separator instead of level trasmitter?
How to Calibrate Flow Switch in field
How to calibrate an pressure gauge with yantrika test bench?
