Answer / anurag,e&a ispat ind. ltd.

in manual control system all the controlling parameter have
been controlled by operatorbut automatic control system all
parameter are controlled by automatic control system by
using plc,dcs @scada system.

Answer / harsh zala

In manual control system, operater has to calculate the
manipulated variable(MV) manually..like we r controlling a
speed of two wheeler by accelerating it by our hand...

While in auotmatic control system u need to give set point
(SP) and acoordingly we programmed the system it will try
to reach the desired output(sp) automatically.uit does not
need manual calulations.as it is already programmed.

Answer / elibariki

automatic control system is the closed loop system that requires no operator e.g Automatic furnace temperature system
Manual system is the system that requires an operator

Answer / dibyalochan sahoo

In automatic control system sensor is used to reduce the error.in manual control system user is responsible to reduce by observeving output.it is a close loop control system .in place of sensor here human is present.an open loop control system with human involvement called manual control system.

Answer / uday

Human operated system is called manual control system.like speed control of vehicles.it's operation based on human sense.
Automatic control system have sensor mechanism, sense the actual condition and send feedback to controller.

How process line mpm calculation is done?

0 Answers  

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Hai friends I have dought for O2 analyser how to working in boiler area. And what is the basic principles

2 Answers   Enmas,

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How r the calculation of process line mpm.

0 Answers   Bhushan Power Steel,

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for commissioning the DPT and Flow Transmitter , what kind of necessary activities we have to check and do? specially that orifice flange valve[ isolation valve}

1 Answers   L&T,

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what r all the closed loop used in boiler? for this related tell some web address..

3 Answers  

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What are the error values can accepted in flow transmitter calibration?could u give any formula for this?

0 Answers   Hamsco,

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What are different types of valves?

0 Answers  

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how can we tune a PID. If it is by zeiger nichols method..please explain briefly with help of an example.

0 Answers   KNPC,

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why fuse block is not used for AI signal?

0 Answers  

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what is working principle of vibration prob

3 Answers  

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Dear sir I am MD.zafar eqbal. I have taken this id from allinterwiev .com I have qustion if you dont mind. 1.what is the maximum operating temprature in instrumentation. 2. I want know about viberation i mean wahat types of sensor used in viberation And what types of trabsmitter used.and hiw to control it and wher is used of viberation transmitter and finally how to control it and what types of fault come. Sorry for disturbing you. I know you have no reason for help me. Because you dont know about me.but i request you please help me these question are very usefull for my feauture.plz sir Thanking you. Sent from Yahoo! Mail on Android

4 Answers  

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what is the difference b/w wet leg & dry leg level method

2 Answers  

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