ABB EasyLine EL3060 Series Instructions For Installation Start-Up And Operation page 52

52 EasyLine EL3060 Series Commissioning Instructions
Time-out Function
If the user does not press a key for more than approx. 5 minutes during
the selection of menu items, the gas analyzer will automatically return to
the measuring mode (see page 47) (time-out function).
The time-out function is deactivated as soon as the user changes the
value of a parameter or starts a calibration.