Why any transmitter signal is 4-20 mA only
Why is started from lower range 4 mA and upper range is
20mA.
- 5 Answers
- 10842 Views
- Edac, I also Faced
- E-Mail Answers
Answer Posted / yakin patel
Upper all answer is right but its 4ma not 3,2,1 bcz it is calculting prove. Has calcultion
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
In my company plc based winders are operated. one day there was a data transmission failure alarm shown on pc. as per sir instruction we have reset master plc but winders were not triped and alarm gone. so what master plc do?
Boolean algebra
What are different types of valves?
Why boiler chimney area oxyden sensor fixing?
For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?
What is the difference between working pressure and calibration pressure of a control valve
3. Differentiate between ultrasonic flowmeter and radar type flow meter.
why is not useing in boiler skin thermocople
dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.
A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.
Isometric drawings are generated during _________________ phase of a project
How to calculate P,I&D value in PID controller ?
What happen if I install my pressure transmitter below the elevation of pipe in natural gas service?
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?
What is the start up procedure of desalter
