Answer / murali inst. technologist

if it is digital ie NO/NC touch the probe with hand then
relay with switch over,
if it is analogue keep sliding with hand on the probe from
bottom to top then controller indication will vary

Answer / ravikumar

When the level probe and controller is connected, both should be checked indiviguialy in accordance with the specification

any thing about plcs?

4 Answers  

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please tel me the calibration of pneumatic controler.

0 Answers  

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So I'm a first year apprentice and I'm having a tough time with knowing the difference between AI, AO, DI, DO. I'm having a hard time understanding what devices are which and why. Can someone explain this to me?

2 Answers  

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how to design orifice plate?what is the equation?

0 Answers   REL,

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How r the calculation of process line mpm.

0 Answers   Bhushan Power Steel,

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What is difference between Ionization heat and bimetallic heat

0 Answers   KOC,

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What is Vena contracta?

3 Answers   CCIE,

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difference b\w a transducer and a sensor

4 Answers  

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What is Integral and Derivative control?

5 Answers   Qatar Petroleums,

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WHAT IS SELF CLEAN ELCTRODE IN MAGNETIC FLOWMETER?? WHAT DO YOU MEAN BY THIS TERM??

2 Answers   IOCL,

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in my company organisation in plan to take new PLC system for replacing old relay system , for that what I/P needsd to submit to the system house of PLC supplier?

1 Answers  

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What is the purpose of valve positioner. Explain 4 uses.

2 Answers   SRACO,

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