Does anyone know how to close all the valves in the changeover block in a Finnigan 252 using Isodat 2.0? I need them all closed for maintenance. Seems like it should be do-able but they appear to have made the software completely dummy proof.
If there is no software solution, I figure I can just remove air pressure to the valves manually. My assumption is that they are normally closed valves. Can anyone confirm this?