In Boiler Drum Level- Level control valve how can it tuning
(PID)?
Answers were Sorted based on User's Feedback
Answer / ashok prajapat
first of all it is important that how much level u want to
control in boiler for exp. if u want to set level 50 % in
boiler then first of all set only p value n pid controller and
this time keep i and d at zero and see process value.now slowly
increasethe value of I and then see again process value and
finally set d value if required.for exp range of these values
may be;
P: 0-100
I: 0-20000
D: 0-100
ASHOK PRAJAPAT
(INSTRUMENTATION ENGINEER)
prajapat.ashok@yahoo.com
Is This Answer Correct ? | 7 Yes | 4 No |
In your own words, would you expect an ultrasonic level device to work better in a pressure vessel with a high pressure or a strong vacuum, and why?
Q- In the process of checking AC through Phase Tester our body is the part of circuit but we don't recevie Shock, Why ?
a pressure transmitter with a range of 0 to 2500kpag has a specified accuracy of 0.5 % of span.It is to be calibrated using a comparison gauge to have an accuracy of 0.1% of span.The comparison gauge has a range of 0 to 3000kpag What is the accuracy ratio? is this ratio acceptable?
In dcs panel we are using diff type of modules ?what is module ? what is the use of modules ?diff type of module?
HOW TO CALIBRATE A PRESSURE SWITCH?
What are the materials use for COntrol Valve body?
1 Answers KNPC, Qatar Petroleums,
Explain plc level and its type?
what is meant by turn down ratio?
Can we use mov instead of esdv Explain the reason
What is mean by ATEX?
Dear Sir/Madam,im going to attend Hpcl written exams on feb 17th in instrumentation stream..can anyone send me the HPCL model papers and pattern of HPCL ....i ve not yet attended anything in HPCL...so i dont know how it comes...so just i need some model test papers and pattern ..pls help me friends...
While preparing the graphic diagrams trend display, 3 types of trends are prepared by Yokogawa system vender. These are for process variable, manipulated variable & set point variable. Why these 3 trends are required? Explain the purpose of these 3 trends.