What is passive connection of instrument in different types of IO module?

2 Answers  

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What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.

0 Answers  

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How to control flow variations in magnetic flow maters..... When i will provide proper earthing?

0 Answers   ABB, L&T,

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Can we place a Control Panel in Hazardous area Group IIC ? If 'yes' then is there any approval required? If 'yes' then there is any specific IP rating or any standard required? If 'Yes' What is MOC of control panel?

2 Answers  

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why use 50% lel methane gas concentration for gas detector calibration instead of 60% lel gas concentration whereas the hi alarm set at 60% lel.

0 Answers   ONGC,

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what is output of FOUNDATION FIELD BUS transmitter

0 Answers  

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what is reason behind boiler drum level transmitter range put -450 to 0 mmh2o.

1 Answers   JP Group,

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Why capacitive banks ar5e important?

5 Answers   Siemens,

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How to Calibrate variable Head flowmeter (Orifice), here we dont know High pressure and low pressure then how to apply pressure on HP and LP side ?

1 Answers   Nirma,

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Why we use the double acting control valve in flow line?

3 Answers  

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you are on site,the plant trips,you are approached by operations,what do you do?

0 Answers   ABB,

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Explain about relays.. Can we give both AC and DC to the same relay... How it is energising.. Explain its working..

7 Answers   IOCL,

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