Answer / manoj

in closed tank measure nozzle to nozzle distance
lower nozzle will be HP Since liquid will from bottom and reach to top level so that top level so lower to upper nozzle distance is1000mm and if its wwater multiply by density so its 0 to 1000*density(1) if its vapour or steam in it
use condesing pot so hen you fill initally so pressure apply on lp side so that why we have to consider -1000mmec to 0mmwc so once water filled in line it becomes o%(equal pressure) after that open upper and lower vale now once process level start level start to increase from hp so its 0to 100% in trasnmitter that is -1000mmc to 0 mmwc

Answer / kutti

The closed vaseal level transmitter range is identify ulta upper hp ,down lp;(negative range )
The open vesal level transmitter range is upper lp,
down hp .(positive range).

Answer / hussain

in dp level we have urv n lrv from this value we have made (urv-lrv) . so we can get total span from this i,e full range from 0 to 100 % .

Q- Ordinary Water Tap is which kind of controller ? P , PI or PID i chose the option of ON - OFF type controller but ambiguity is that for different positioning of tap we get different flow

1 Answers  

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when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

0 Answers  

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Full form of KKS when use DCS.

0 Answers  

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Q1]IF THE RANGE FOR FLOW IS -35 TO 125 WHAT WILL BE THE SPAN FOR ABSOLUTE AND FOR NORMAL? Q2]HOW TO CALIBRATE CAPILLARY TYPE LT? Q3]HOW MANY ERROR CALCULATIONS ARE THERE USED IN PROCESS INDUSTRIES? Q4]HOW TO CALIBRATE TEMPERATURE TRANSMITTER? Q5] HOW TO CALIBRATE LEVEL TROLL AND HOW TO CONNECT? Q6]PLEASE TELL ME THE BASIC FOR INSTRUMENTATION WHICH IS APPLIED FOR CALIBRATION AND FOR ALL? PLEASE MAIL THE ANSWER TO honest_yes@yahoo.in

0 Answers   Cegelec, Honeywell,

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PLEASE PROVIDE SAMPLES OF CHEVRON SKILL TESTS

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whats the working principle of level transmeter?

6 Answers  

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installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,

0 Answers   BARC,

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pl give the guidance for DUBAL written test

1 Answers  

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Why rtd  out put is ohm how create the ohm 

1 Answers   Samsung,

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how to calibrate TT transmitter

3 Answers  

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why do we use 4-20mA as o/p and why don't use 0-20mA or 5- 21mA?

3 Answers  

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Hook up resistance decade box to temp.transmitter.

0 Answers   CCIE,

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