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I have a problem with a valve (air to close).
When it is fully closed and try to open 1% it doesn't responce till 3% open suddenly more than 3% then back to 3%.
I tried to tune positioner then removed it, the problem still exist.
Any idea
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Answer Posted / smith
which type of positioner you are using?. it depends on the positioner. try to tune it correct manner you will get the output.
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