( A side note )
Thanks to a brilliant 16x2-Limited-Space-LCD observation by Dave LIzdas that the UNITS could be pasted below the LCD and therefore didn't need to take up precious real estate in the display (!!!!)
I was able to add back a Desired Tidal Volume alarm parameter and make the system now have adjustable tidal volume alarms.
I allow the user to pick a desired TV from 100 to 900 and set the alarm-limits @ 100 below and 100 (cc) above.??
The attached code is basically ONLY for the 16x2 display.....
I think it works!!?