Answer / richard marks

ph meters are calibrated using buffer solutins which are at
known ph levels. Make sure the probe is cleaned before
imerging it in the solutions.

Answer / satish

YOU CAN CALIBRATE IN THREE PHASE 4/7/9 PH BUFFER SOLUTION
NORMALLY WE ARE CALIBRATING WITH 4 & 9 PH BUFFER THAT MEAN
4PH--4MA/9PH--20

Answer / subhash

the Ph calibration is done by using the buffer solutions
,with the one probe i,e the reference electrode and the
measurement electrode ,,,,,,,,,,,,,

i/p converter always for supply pessure from 3~15 psi only !! And from where this converter bleed the air.

2 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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Draw a great bridge circuit.

0 Answers   CCIE,

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how to know power plant process with corresbonding laws&thoeries

1 Answers   Bhel,

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how can calibrate pressure transmeeter in the feild ?

1 Answers  

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Can we use thermocouple in generator of power station replace RTD(pt 100)? if we don't have any place for use RTD.

2 Answers  

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How will you select suitable Instrument for Process line/Tank/Vessel?

5 Answers  

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explain level transmitter working

1 Answers  

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what is stability

2 Answers   IOCL,

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what is the reset offset and control system in instrumentation

0 Answers   ABB,

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Level in tank under vacuum (Ex: Condensate Tank of Power Plant)is measured using D. P. type level transmitter. Tank is subjected to vacuum of 755mmHg. Is it possible to fill wet leg ( i.e. leg connected to top of vessel with low point of D. P. xmtr) with water?. Are there chances of water getting sucked under vacuum? if yes, what is the solution?

3 Answers  

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what is difference btween rotameter and orifice plate?

3 Answers  

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