canu tell me why 4-20 ma and why not this 3-25ma?please
give reason of this value.
Answer Posted / karthik
The Electronic circuits employed in all Instruments require
atleast 3 mA for its actuation so the lowest range is
limited to 4mA & the rest as said by JOSE is exactly correct
Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
what is the electrical operation procedure for switching on 27.6MVA electric furnace.
Type of level transmitter commnly used in Procees area are the following. a.________________This type of level transmitter works as follows
how to calculate the total flow in square root
How to calibrate smoke Dectector
how to calibrate mass flow meter (Coriolis)? Example calibration range: 0 to 2500 kg/hr line size 3" fluid: Etheline glycol (MEG)
give me all the details about the interview and which type of question being asked
hello sir/madam, I,Subramanian need 5yrs placement papers of officer trainee of Instrumentation technology.pls send to this mail id mani_nxtgen@yahoo.co.in please do the needful. with regards, subramanian.v
installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,
How is automatic reference junction compensation carried out in temperature recorders?
Instrument QA/Qc what is the project quality plan?conduit inspection RFI. which documents attache with package?
use of split range ? where it is used ? in which control loop it is used ?
Which is your favourite subject & explain any one topic of it.
Which are all the commonly used Bordon tubes in the pressure gauges. Do any one use ASTM A 312 tubes for this purpose?
hiii.... can any one provide me previous years question paper of hindustan petroleum for instrumentation engineering???
What is super thermocoupal?