why does a transmitter o/o signal starts from 3-15psi or 4-
20mA?
Answer Posted / sudipta,iter
bcz 4 ma is the amount of current that occurs when there is
no input to the transmistter and coresponding pressure is
3psi.this is called as live zero concept.so by using thus
we can detect error easily .thats why we usese this value.
| Is This Answer Correct ? | 10 Yes | 4 No |
Post New Answer View All Answers
What is difference between radial vibration and axial vibration explain in detail .
Explain the working principle of lvdt?
Instrument QA/Qc what is the project quality plan?conduit inspection RFI. which documents attache with package?
What is limitation of the ht.of the displacer of a level trol?
What are the error values can accepted in flow transmitter calibration?could u give any formula for this?
how do u calibrate the vacuum transmitter if it shows more reading
How to calibrate Toxic gas detector?
what is gas metering system? gas chromatograph? and gas compressors?
what is different between 2,3&4 wire rtd and how much maximum distance using plc to field.
how many types of preheaters are in cement industry & what r they can any body explain?
plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}
why we are using magnet for calibration of gas detector?
Why boiler chimney area oxyden sensor fixing?
define feed forward control loop with example and drawing?
detail of mass flow meter pricipal