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In Split Range Control, Whether The Signal Is Splitted Through I/p Converter Or The Converter Itself? |
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Answer» This can be typically achieved by TWO WAYS: By connecting o/p of one I/P converter to two positioners adjusted SUITABLY for split range operation of control valves. TAKING two AO from DCS. Split range to be defined in DCS. Both I/P converters and positioners to be calibrated with input as 4to20 ma dc and 3to15 psi respectively. This can be typically achieved by two ways: By connecting o/p of one I/P converter to two positioners adjusted suitably for split range operation of control valves. Taking two AO from DCS. Split range to be defined in DCS. Both I/P converters and positioners to be calibrated with input as 4to20 ma dc and 3to15 psi respectively. |
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