Answer / ayaz

analog input/output is continuously  vary signal for example process variable continuously change so transmitter output continuously chnage 
and digital input/output is only zero or one ( o mean off condition and 1 mean on condition ) digital use only on off devices 

Answer / ayaz

dear all I am currently working with omv pakistan i want a job in instrument tech please help him 

WHAT IS DIFFERANCE BETWEEN INSTRUMENT AND EQUIPMENT

1 Answers   Lupin,

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While giving Power Supply of 24 VDC to a Transmitter,why Shield Terminal is connected either at Transmitter or at ISB.Why not Shield Terminal connected at both ends.If the Reason is to avoid Noise interference,which type of noice that is interfering.Is the Noice from the 24 VDC supply terminals or from any external source.

1 Answers  

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Why using negative voltage in vibration measurement?

2 Answers  

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if i want to make a zero trim for mass flow meter the pipe line should be empty or i need to make it full? i really need the answer pls help me

2 Answers  

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What is a PID?

6 Answers  

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How to convertion 100 m3/hr to mmH2O or to Kg/cm2?

0 Answers  

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what sud u do if u dont get feedback from control valve?

1 Answers   Siemens,

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What is TMR

3 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 to adjust relay in smart positioner ?

1 Answers   SipChem,

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What are the processes Variables?

4 Answers  

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with the help of suitable diagrams different types of control valves

1 Answers  

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