I have observed in field instrumentation work... I remove the fuse of an analog transmitter then it shows 7.75 kg/sq cm (which is practically wrong value)in DCS and when put the fuse it shows 0 in dcs. Then cheach the field transmitter termination and found moister. clean that and then it shows 1.1 kg/ sq cm which is right value. Please describe the above phenomenon.

1 Answers  

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How EMF is generated in Thermocouple

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what should be minimum length and size of impulse line for steam flow orifice and feed water orifice? asked by sanjay parihar

1 Answers   Birla,

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Describe how to use megger to measure the earth resistance and insulation resistance

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How to check the SCAN time of DCS ,n dont give therotical answers .How to check the SCAN time of DCS during FAT?

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What are the instrumental diagram of valve.

2 Answers   Karnataka Power,

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How much flow is passing through 6 inch line? There are no gauge, no any transmitters in line.

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What is NODE in DCS?

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IN JB CONSTRUCTION WHY WE ARE USING JUMPPER........CAN U PLEASE TELL ME.....

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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.

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why we use 24v dc in instrument rahter than 230vac????

4 Answers  

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WHAT IS THE DIFF. BETWEEN SKIN TEMPERATURE AND PASSES TEMPERATURE..?

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