Interested to Buy Any Domain ? << Click Here >> for more details...
If we increase D what will be the controller action?
- 2 Answers
- 5498 Views
- I also Faced
- E-Mail Answers
Answer Posted / sks
well, increasing D action for a controller can make a
controller random in error elimination because even for a
step change D generates a spike( means tries to compensate
for change very quickly). if its increased to its limits, D
action will overtake the process value change and this will
cause further offsets that I action wouldn't be able to
compensate due to its slow response against such a rapid error.
result is a quick overvalued offset !
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
what is the procedure for auto tune in masoneialn 12300 series displacer type transmitter?
what is stroke check for field instument transmetter's & AOV's
Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72
What are de-saturators?
Conversions
What is stripper & spilitter ? Diffrence in this.?
What should be the main consideration while starting the Rotating compressor when we dont know the cut in and the cut off pressure setting of the pressure switch
WHAT IS MEANT BY PROJECT MANAGEMENT STRATEGIES IN INSTRUMENTATION?
How to measure the dust in chimney(spm)?
What is three element drum level control system why its better than single element?
why we are not using the turbine flow meter in the steam service?
KAlman filter code for two dimension?
how to do dynolab wind speed sensor loop test, how to simulate value,i have simulate mA 4-20mA but not responding in DCS faceplate, please kindly advice me any one.
hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....
What is ultrasonic flowmeter?
