⟩ Tell me in split range control, whether the signal is splitted through I/P convertor or the convertor itself?
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.