Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / mohamed rafik
The opening or closing of control valves is usually done automatically by electrical, hydraulic or pneumatic actuators. Positioners are used to control the opening or closing of the actuator based on electric, or pneumatic signals.
| Is This Answer Correct ? | 0 Yes | 2 No |
Post New Answer View All Answers
How can we test a bently nevda 3500/42M accelerometer monitor card by simulating it with test equipment?. what king od of signal (milli volts or volts or or resistance ) we should feed in the terminals of the card?
Why flow/pressure transmitter before control valve?
In my company plc based winders are operated. one day there was a data transmission failure alarm shown on pc. as per sir instruction we have reset master plc but winders were not triped and alarm gone. so what master plc do?
why we us isolation barrier in hazardous area how it works to protect the area and please clarify its current flow.
Isometric drawings are generated during _________________ phase of a project
this site is owned by an nonsense
If relative y axis vibration sensor is by passed, and relative x axis and absolute sensor is left working. how much monitoring i would have risked?
What is sensitivity in vibration probes..?
Where are oxygen analysers installed in cfbc boilers? What are their usual readings?
What is the procedure of calibration of Load cell?
1.can you use SCADA instead of DCS,DCS instead SCADA 2.Difference between DCS and PLC,can their role be reversed i.e. role interchange 3.Difference between RTU and PLC
Why grounding is necessary? Give example with diagram.
please tel me the calibration of pneumatic controler.
why is an oxygen sensor used in a boiler stack
when a magnet is heated?
