(updated Nov 2004)

For a Global outline of the gas system status based on the engineering scheme, use the 3rd item scrolling menu called "Panel reproducing DCH gas system
diagram".
From this  menu you can access (from top to bottom) :

    a) The Distribution panel displays the status of the distribution part of the gas system (flowmeters, pneumatic valves, pressure gauges),

    b) The Circulation panel displays the status  of the circulation part of the gas system (flowmeters, pneumatic valves, pressure gauges) .