any body tell me why 4-20 ma use as a current any reason
for this amount why not 3-25 ma?
- 1 Answers
- 3794 Views
- I also Faced
- E-Mail Answers
Answer Posted / kiran
Normally all field instruments have 250 ohm resistance,
& operated this instruments on 1-5 volt.
Sothat @ 4mA the volt = 1 volt &
@ 20mA volt = 5V.
Hence it expressed in 4-20mA.
| Is This Answer Correct ? | 7 Yes | 0 No |
Post New Answer View All Answers
how a three wire proximity can be used in place of two wire proximity?
Hoe electronic energy meter works?
Where do you see after 5 years
I have problem in APFC panel -0.44 while load ON time, i have replaced APFC display & checked the CT supply are ok. how to solve the problem
What is the major difference between Normal control loop and Cascade control loop and when to use cascade control loop?
why we give dedusting steam in feed gas coils in convection section of primary reformer?
Explain about a good liquid scrubber that we can use in acid washing.
what is load capacity of 11 cm cylinder bor 100kg. pressor?
how could you change gas line control valve to liquid line valve?
for the steam temp 420dec de superated to 120deg how much of water required
What is the purpose of departmental classification?
What is refrigeration cycle of HVAC .
How capacitor bank can prove superior to synchronous condensers w.r.t. power factor correction??
Can any One Help me to Know about Fire hydrant and its related water Pressures
Why cnc machine installed in dustproof room?
