Answer / faiyaz ahmad

Controller is device which is used to control the field instrument.
Transmitter is device which is used to measure a physical quantity.

what is the difference between AUTOMATION AND INSTRUMENTATION?

7 Answers  

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1.In which princeple DP transmeter works? 2.Why UPS system is use for DCS? 3.How drum lvel controller works? 4.What is the difference between glob valve and gate valve? 5.How axial shift probe work & in which princeple it works?

1 Answers   Luberef, Qatar Gas, Reliance,

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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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why pneumatic control signal output is use 0.2 to 1 kg/cm2

3 Answers   Jindal,

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list of flame proof certification ?

1 Answers   TATA,

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why we use npn sensor in vibration monitoring system

1 Answers  

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If a differential pressure transmitter is calibrated for 0~2500 mmH2o and transmits a 4~20mA dc signal. The transmitter is placed across an orifice plate which is sized to create 2500 mmH2o differential at 5000m3/Hr a) what is the flow rate when the transmitter signal is 13.0mA DC? b) what is the signal output of the transmitter when flow rate is 2500 m3/Hr ?

5 Answers  

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as an instrumentation engineer which are the things we have to know / or we must have idea about that....

2 Answers  

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A pressure Tx accuracy is 0.2%. Signal o/p is 4-20ma.span is 16 Ma.how many deviate the o/p then calibration needed

1 Answers  

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how can loop single 4-20 ma to two isolation amplifier? i mean i have two isolation amplifier with 4-20 ma input and 1-5 v output.can i done series connection ?

1 Answers  

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what is instrument philosophy

0 Answers   United Automation,

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How to measure the dust in chimney(spm)?

0 Answers   Thermax,

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