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6. The!self‐tune!is!a!continuous,!on!o n‐line!algo rithm!that!"observes"!the!measured!value!and!looks!for!osci llation! due!to!
loa d!variations!or!set‐point! change s.!When!a!significant!pat tern!is!recogni zed!the!tuning!parameters!are!a utomatically!
adj usted.!
When!Self‐tune!is!running!the!PI!parameters!(PB, !TI)! are!read!only!in!the!oper ator!menus.!
!
The!type!of!automatic!tuning!available!de pends!on!which!mode!the!controller!is!in!(Pressure!o r!Non‐Pressure),!a nd!whether!
the!control!is!manual!or!autom atic .!
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