Answer Posted / kumar
A cascade control system is a multiple-loop system where the primary variable is controlled by adjusting the setpoint of a related secondary variable controller. The secondary variable then affects the primary variable through the process.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
NSV type probe stands for
send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com
1.what is controller proportional gain 2.what is the controller intergral action time. 3.A proportional plus derivative controller that has a proportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input if the input rises and falls at the rate of 4 units per minute.
How can test or measure the probe and extension cable to identify if the problem at the probe or cable or at the driver it self? (pleast notify the measuring method)
How do you identify an orifice in the pipeline?
diff between neutral ,ground,phase , earthing and shielding?
What are the application of bernoulli’s theorem?
What is mean by analytical instrumentation?
What is zener diode? What is voltage regulator?
When doing a liquid seal on a differential flow transmitter , most of the time the sealing liquid will be heavier then the process fluid. For wich application will the sealing liquid be lighter than the process fluid if transmitter is mounted below the process line.
Which type of pressure can be measured by primary elements?
What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus
what is difference between HOT permit and cold permit
who's take first position in process in the timing of new installation flow transmitter and control vavle. give the answer with logical trick.
Instrument QA/Qc what is the project quality plan?conduit inspection RFI. which documents attache with package?