Why we use 4 to 20 mA, (This is International Standard)
instaed of this can we use 4-16, or 4-24 or 3- 15 or any
other range
Answer Posted / abdus sattar mollah
ALL ANSWERS ARE WRONG.....
4-20 is a standard because transistor which is the basic building block of any transmitter has a linear output charecteristics in 4-20ma range.
| Is This Answer Correct ? | 4 Yes | 8 No |
Post New Answer View All Answers
How we calculate orifice plat size???
How will you test a transistor with a multimeter?
what are the different types of Protocols? & their applications.
What is Erosion in a control valve?
CONTROL VALVE OPERATING IN MANUAL BUT NOT IN MANUAL. WHAT SHOULD BE THE PROBLEM ?
you must show the examples application and give at least 4 types of transducer/sensors that can minimize the failure during the manufacturing of the resistors.
Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.
Why is it necessary to use compensation leg to measure the liquid level in a closed or pressurized tank?
How can i test procedure grounding for CAT-7 cable? Or How can we test procedure CAT-7 Cable Electrically safe?
Manipulation of dead wt. tester double piston type.
Why flow/pressure transmitter before control valve?
If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?
How is work 5/2 sov?
How d.p. Transmitter can be applied to close tank?
What is the difference between ff transmitter and non ff transmitter