what do u mean by 2/3 soleniod valves?

8 Answers   Nile Sugar,

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Why we use 3-15 psi air for control valve input?

2 Answers  

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why the output sugnal is 4-20 ma and not 4-25 ma?

5 Answers  

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hello.my friends.i am an electronics & instrumentation engineer.i want to know Q1.why lugs use in instrumentation cable termination? Q2.if limit switch not working what to do?

2 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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What is the function of a diaphagram

5 Answers  

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What is instrumentation technologists and mechanics?

0 Answers  

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HI friends.I am Surya a BTech in Electronics and Instrumentation Engineering.I am going to appear Relince Industries Ltd all India writen test very soon. so plz help me by sendind the probable questions about my subject.My mail ID is surya.barik@gmail.com.

0 Answers   Reliance,

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What is shriking and swell effect for a boiler ?

1 Answers  

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If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , then it will reaches again 50%, this type of action occured frequntly.. so what to do for solve this problem. The possible cause is in volume booster or positioner's relay.. positioner is double acting .. and make siemens..sipart.The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

2 Answers   Gujarat Fluorochemicals Limited (GFL), Shell,

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Is there’s power on the bus (if so, state whether on the signal bus, or on a separate in the following: a) HART b) Profibus DP c) Profibus PA d) DeviceNet e) Foundation Fieldbus

1 Answers   EIT,

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Can anybody explain what is the different between ESD & PLC

1 Answers   ADCO,

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