why can't we use 5-20mA standard or some other instead of 4-
20mA?

Answer Posted / sutharani.a

The electronic instrument using only dc power supply. so
using the standed value of 4-20mA, because 0-16mA is the
standared deviation elctronic meters. 0 value is not
pricise value so zero insted of four and 16 insted of 20.so
we are use to 4-20mA normal.

Is This Answer Correct ?    2 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS

1669


Why plc require in analog input 4-20amp & 0-10 volt?

625


How works weighfeeders in cement industry? what is the working principle?

1524


what is the procedure to callibrate temp controller ,pressure controller,etc. suppose a temp controller showing error 1.5 degree centigrate how can i minimize it.

1871


How to decrease opening & closing time of on/off valve?

971






HOW TO SOLVE PROBLEM WITH ENRAF LEVEL TRANSMITTER 854 ATG THAT PASSWARD DO NOT Exist INTO TRANSMITTER TO ADJUST LEVEL WITH PORTABLE PET 847, WRITTEN WRONG PASSWORD , I AM SURE THAT DEFAULT PASSWARD (W2=ENRAF2) IS THIS TRANSMITTER NEED TO REPLACE SOFTWARE AND HOW?

2987


what is interface level and how it is calibrate?

1768


need instrumentation job completed 1 year trainee ship in mnc pesticide company. now in search of job

1483


How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?

1600


what is easiest way to read STL language in PLC?

2662


How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?

1582


Which type of pressure can be measured by these elements?

631


how can use ram

1486


Draw a great bridge circuit.

1574


I need to know steps to Calibration Valve Guard......

997