Answer / satish

active / passive connection mean that two wire and four
wire transmission

Answer / abdelrahman

means 2 wires instrument(current sink).

what is different betwen Process zero and atm zero?

1 Answers  

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why use 4-20mA in the field of instrumentation?

8 Answers  

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How we can do the linearity test for Bently Naveda Vibration Probe?

1 Answers   Sabic,

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How will you measure surface temperature of SUN?

2 Answers   GAIL,

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What is controller? What is transmitter?

1 Answers  

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defination of plc

14 Answers   ABC, Sofcon,

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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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what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

1 Answers   ABB,

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What is diffrence between Transducer and Transmitter?

13 Answers   Ford,

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What is hp & mp seperator .& what is its working principle ?

0 Answers  

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Definition of level

3 Answers  

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what is difference btween rotameter and orifice plate?

3 Answers  

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