What is the difference between HMI and Scada?

4 Answers   Schneider,

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if a dp transmitter has range 100 in H2O and flow is 20mmcf and if the flow is changed to 25 mmcf then what is the formula to determine new range of transmitter

1 Answers   TATA,

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What is the formula to know the error of weighfeeder after having drop test.

3 Answers  

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what is pneumatic control system?

1 Answers   APL,

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what is virtual instrumentation

0 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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Hot calibrate a level transmitter (wet & dry legs)?

1 Answers   Honeywell, IEC,

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i want to make project on process control using plc.please give me idea about this.

2 Answers  

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what is installation and commissioning of (fat & sat) of power plant dcs ? this question keeps in desirable conditions of one company .

0 Answers  

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OBJECTIVE TYPE QUESTIONS OF ANALYTICAL INSTRUMENTATION

0 Answers   Fauji Fertilizer, GSECL, NFL, Power Plant,

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how to change 4 wire rtd transmitter into a 3 wire rtd transmitter? as our transmitter is working for 4 wire rtd, what should do for working on 3 wire rtd transmitter

1 Answers   HHJ,

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A pressure differential gauge type of instrument has a manifold with 2 isolation valves (hp and lp),2 vents(1 each for hp and lp) and 1 equalizing valve. Determine the position of each valve(either fully closed or fully open) when troboulshooting to: 1. zero the transmitter. 2. determine if there is a block in the impulse line. 3. determine if the gauge is functioning properly. The process fluid is water.

1 Answers  

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