Answer / narayan

Check Tx data sheet or engraved plate on the tx and it gives span limit as 2000mm, then we can change
if it is below 2000 mm, we can not change, or calibrate
it is sensor range

Answer / mudassir

yaa you can but you have check the model no. if it is30512G
THEN YOU CAN CALIBRATE IT upto6000mmwc

Answer / saumil

We connect 375hart protocol and given this new range and calibrate 20 mA at 2000mmwc

Answer / ramana

If the Tx. Range is 2000 mmWC we can change it. But we need
little calculation. There is one formula

square root of(P1/P2)= Q1/Q2

Where P1= Pressure 1
P2= Pressure 2
Q1= Flow at Pressure 1
Q2= Flow at Pressure 2

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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Why in turbine used two critical speed band ?

1 Answers   Ankit Metal Power,

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how can be connected thermocouple in series?what is the need?

2 Answers   Hindalco,

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what5 does intrinsically safe mean.

2 Answers  

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What is feedback system.

1 Answers   CCIE,

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Please any one can provide latest aptitude test,technical test and interview questions for tata consulting engineering (TCE) i need it asap thanks in advance

0 Answers   TCE,

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How to make position transmitter feedback reverse i.e at valve close i want 20ma output and at full open 4ma.for the NELES positioner,model:ND8261/TS1.

3 Answers  

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Wht should be the ratio of natural frequency (Fn) to wake frequency (Fw) and wht if goes above the rato limit?

2 Answers  

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what is the input of digital RPM indicator during the calibration time?

1 Answers  

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With N nodes and B branches what will have a network ???

0 Answers   BSNL,

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you are on site,the plant trips,you are approached by operations,what do you do?

0 Answers   ABB,

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if I did short to both AO connections, channel will burn or what? m sure in AI it will damage to channel. But what will happens in AO?

1 Answers  

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