change gas when dtr hits 12%

[ErezMinuto]

Is there a way of triggering a GAS when the current DTR in the roast matches the DTR let say 12%?

[MAKOMO]

This is in detailed explained in the post Symbolic Formulas: Basics, New Variables and Applications in Section 3.4 Symbolic Formulas and Alarms, paragraph SET BURNER TO 20% ONCE DevRatio REACHES 12%.