Answer / iyyappan.m

Open loop is a only one transmitter here is no control of valve or anything.

Closed loop is a Pid loop ,transmitter control the control valvewith operator desired setpoint.

Regarding MOS (maintenance override switch), I want to know its function and its state ( 1 or 0 when not activated ). An example will be very helpful..thank you.

1 Answers  

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How does milli volt is created in themocouple?

2 Answers   Jaypee,

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what is the input of digital counter during the the calibration time?

0 Answers  

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Please send the all question with answer related for interview.

1 Answers  

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I WANT TO KNOW SOME BASIC CONCEPTS RELATED TO INSTRUMENTATION

4 Answers  

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If a transmitter is installed 10 m below its tapping point how much pressure exerted if fluid is water?

10 Answers   QAFCO,

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WHAT IS ANNUBAR?

7 Answers  

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How Many Slave Can be used in one slave ?

2 Answers  

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how u calibrate pneumatic n motorized c/v?

0 Answers  

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How to convert mA into Percentage?

4 Answers   KNPC,

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what is absolute pressure and where use in process?

3 Answers  

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can anyone tel the syllabus or previous year question paper for BHAVINI(EIE)2014.

0 Answers   Bhavini,

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