Answer / rithesh

in horizontal or vertical pipe while installing we have to
take care about that it should be right angle to
pipe .there should be clearence of angle from sensor part
as specified by vender recomdetion.

Answer / vikash (ineos abs)

Also,take care that it should install in such a way
thatit's glass bulb should always remain wet.
it is very important.
Also exact infrnt of the the sensor at opposit side you can
provide spary assemly to clean the bulb regularly without
removing it.

What is require for PLC Programming?

6 Answers  

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what is droop mode n frequency mode in wood ward governor?

1 Answers   TATA,

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Can we place a Control Panel in Hazardous area Group IIC ? If 'yes' then is there any approval required? If 'yes' then there is any specific IP rating or any standard required? If 'Yes' What is MOC of control panel?

2 Answers  

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Why plc require in analog input 4-20amp & 0-10 volt?

0 Answers  

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what type problems create in radar level transmeter and what is its solution

2 Answers   Essar,

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What is the difference between HMI,SCADA and MMI,not abbrevation?

7 Answers   HCL,

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why we are giving negative supply for vibration sensors?

3 Answers   Shell, Solex,

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How will you calibrate an interface level trol/normal level trol in line and in w/s?

1 Answers   CCIE,

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sir ,iam in dem urgent need of HPCL Paper of Instrumentation Branch plz send me at your earliest convenience at ujjwal_sharma1983@yahoo.com

0 Answers   ONGC,

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Draw a 3 element level control loop and explain

1 Answers   CCIE,

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A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.

0 Answers   MNC,

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define optical temperature detector

1 Answers  

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