Answer / n bala krishna

IF THE TANK LEVEL IS 0-100%, BUT IF YOU WANT TO MAINTAIN
30% AS THE MINIMUM LEVEL OF THE TANK. AFTER FILLING THE
TANK WITH 30% SOLUTION, I WILL PRESS ZERO TRIM. AFTER
PRESSING ZERO TRIM THE TANK WILL SHOW 30% LEVEL AS 0% IN
DCS.

Answer / mithilesh kr

any transmitter,control valve etc.
are follows 0-100% range.
0% called zero and 100% called span.
for setting of 0-100% of any trim
is required

what is function of sensor, and how is it work , explain with difination

0 Answers   Bapco Bahrain Petroleum Company,

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Explain types of valves?

0 Answers  

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if conical type tank in top LEFT side solid material coming but LT MOUNTED IN TOP OF LEFT SIDE, how to measure ultrasonic level transmitter ?

1 Answers   Cairn,

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suggest a sensor to measure rapidly varying temperature?

1 Answers  

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generally for transmitter we are giving supply 24vlts?but we are getting output 4-20ma ? how it is possible? is there any operation inside the tx?pls give complete information?

3 Answers  

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If we interchange HP and LP tapping in drum level measurement and reverse LRV & URV correspondingly.What is the difference between the normal tapping(HP,LP) and reversed tapping(LP,HP)?

2 Answers  

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I have a problem with a valve (air to close). When it is fully closed and try to open 1% it doesn't responce till 3% open suddenly more than 3% then back to 3%. I tried to tune positioner then removed it, the problem still exist. Any idea

3 Answers  

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Where we cant instal mass flow meter.

1 Answers  

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why bevelling is done in an orifice ?

4 Answers   ABB,

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Explain the key components of control loop?

0 Answers  

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what is actual difference between pressure Transducer & Pressure Transmitter.

5 Answers  

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I will attend an interview with GasGas company for a position of Instrument Technician ( Offshore )in next month can anyone tell me what questions they will ask. Thanks in advance.

0 Answers   RasGas,

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