Answer / kashif

Level troll is used for measuring level of one liquid in vessel and interface level troll is used for more than one liquid commonly for two liquid having different S gravitates i.e Water and Condensate.

Answer / faiyaz

its working in the Archimedes principle generally used in closed tank the lose of weight of the body immersed in liquid total liquid equal to the displaced by the body level troll is used in single liquid and interface level troll is used in two liquid that is called level troll and interface level troll

diff between dead wt calibrator n pressue comparator?

4 Answers   Invensys,

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what is difference b/w Earth and ground

2 Answers   PPL,

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Please asked me How calculate DCS controller memory.

0 Answers   Yokogawa,

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what is the essential difference between DIODE and SCR in term of application.

2 Answers   ADMA OPCO,

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Why 1-5 vdc a standard?

1 Answers   Process Control Technologies,

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HELLO FRENDS ,, I M IN THE MIDST OF TROUBLE .. JUST LITTLE HELP ME... SUPPOSE ,, I HAVE A CLOSE VESSELE TANK ( HEXANE MEDIA ) ,, I M USING ROSEMOUNT 2051 DPT FOR LEVEL APPLICATION .. ITS CALIBRATE RANGE IS.. . 0 TO 950 MMH20 ..I DID CALIBRATED DPT WITHOUT REMOVING IMPULSE LINE OF HIGH AND LOW TAPPING.. & WITHOUT DISTURB 3 WAY MANIFOLD..!!! BUT ,,, DURING CALIBRATION I SELECT RANGE BY HART LRV IS 900 MMH20 & URV IS 1300 MMH20 ,, BUT ,TANK LEVEL SOMETIMES 100 % AT 1100 MMH20 , SOMETIMES 1300 MMH20 ..IN THIS CONDITION .. WHOLE LOOP FAILED ,, MAIN THING IS THAT ,, HOW TO CUSTOME RANGE SELECT ?? AND IF I USED RANGE OVER THE ORIGINAL CALIBRATE RANGE ,,,THEN WHAT ERROR WILL BE COME ??? HOW TO ZERO CALIBRATION OF DPT... HOW TO ZERO TRIM BY MANIFOLD ?? AND FOR TANK LEVEL PURPOSE ... WHICH UNIT I CAN USE ??? IS THERE ANY CALCULATION OR CALIBRATION .. IF YEH .. THEN PLZ JUST GIVE ME CALIBRATION STEPS FOR DPT.. THANKS YOURSSSSSSS

1 Answers   Torrent Pharma,

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why r using 250 resistances

6 Answers   Sabic, Samsung,

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A pressure transmitter with a range of 0-100 bar.The accuracy of the instrument is 1% of upper range value? The pressure indicating transmitter is showing the system pressure is 50 bar. b. When you include the error, what is the minimum possible pressure in our fuel gas system? i. 49.5 bar ii. 49 bar iii. 1 bar iv. 0.5 bar We want to change the filter cartridge. We must depressure the fuel gas system. c. After we depressure the system in preparation for maintenance, the transmitter displays a pressure of +0.1 bar. At this time, what is the possible range of pressures in our fuel system? i. +0.099 to +0.101 bar ii. 0 to +0.2 bar iii. -0.1 to +0.3 bar iv. -0.9 to +1.1 bar

3 Answers  

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can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).

0 Answers   Max India,

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What are the processes Variables?

4 Answers  

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what will be the output of a temperature transmitter if temperature is 120 degree celcius?

6 Answers   KNPC,

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what is the difference between cold loop and hot loop

2 Answers  

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