What properties or parameters to be taken into consideration for protection while selection of Dcs controller.
if you mean protection of for example power plant
so the most important parameter is scan time of
the controller must be very fast so action be very fast
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How to work togather like sov,limit switch,proxy switch and booster in xv
how to measure low temperature(<100 dec celsisus) with non condact sensor
how u choose thermowell lenght n pnumatic C/v size?
What is three element in drum level?
why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .
what is the output of conductivity sensor and PH sensor?
Difference between guide wave radar & non guide wave radar ?
why OPC server is used in DCS?
what is hot loop check and cold loop check.
3 Answers Bapco Bahrain Petroleum Company,
What are the key components of control loop?
What is the difference between relative vibration
generally transmitter power supply having some range(12v to 35v) but the out put(4-20 mA) must same for given input.If we vary the power supply voltage then output mA also to be change according to V=IR. Is there any voltage regulator in the transmitter ?
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