Why 24VDC power Supply is used as standard for all loop
powered transmitters?

Answer Posted / maddy2504

It totally depends, 24 V DC 2 wire is not always applicable
every wehere some times it is 2 wire, 3 wire (2 cable for
power up & signal & 1 cable is for earthing), some times it
will 4 wire(2 for powerup & 2 for signal).

24 V Dc is for certain limit b'coz voltage will be drop in
that case w'll use 230v AC.

Is This Answer Correct ?    5 Yes 6 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

In which principles tx ,pressure gauge,Temp gauge,control valve works?

1290


Give 2 application of quartz crystal used for process parameter measurement.

1580


what is the usage of QDV & VOLUME BOOSTER

1772


defination of radial vibration?

1671


Calibration procedure for Electro magnetic Flow meter

4034






I want to measure and control level in tank of size 10*5 filled with gasoline, so plz give me the solution with clear details. how to select transmitter and sensors.

1757


what is function of switch, and how is it work, explain with difination

1793


sir i m preparing for BARC but i am not getting any papers to prepare for this exam so please send me some sample papers to my i.d for the preparation of barc.

1999


What is zero elevation and zero suppression?

1606


which processor is used in dcs.

1818


What is Span Error

207


what is thermo coupler and how it works

4978


why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.

1933


How vortex sensor used for steam flow measurment can be checked on line i.e without taking out from process line.

1623


What is the use of gauge?

684