Rotary knob and Fixed-function "hard" keys

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• Rotary knob
  
  The rotary knob is the main control used to select and confirm all monitoring and system settings.
  
  – Turn the rotary knob to change or select a value or parameter (clockwise rotation increases a value; counterclockwise rotation decreases a value). This function is indicated by "select".
  
  – Press the rotary knob to set a value or confirm a selection. If the selection is not confirmed, the value or parameter will not change. This function is indicated by "confirm".
• The »ManSpont« key selects the Manual/ Spontaneous ventilation mode.
• The »Lamp« key turns the tabletop light and the ventilator and vaporizer lights on and off.
• The »SIMV/PS« key is used to select the SIMV/PS ventilation mode (optional).
• The »Pressure Support« key is used to select the Pressure Support ventilation mode (optional).
• The »Pressure Control« key is used to select the Pressure Control ventilation mode.
• The »Volume Control« key is used to select the Volume Control ventilation mode.
• The »Alarm limits« key displays the Alarm Limits window.
• The »Setup « key provides two different functions, depending on mode:
  
  – If pressed during Standby mode, it displays the Standby Setup screen which enables the user to define site defaults and configure system settings.
  
  – If pressed during a ventilation mode, it allows the user to view and change monitoring settings.
• The »Home« key displays the main screen from any other screen currently displayed.
• The »Silence« key silences all active alarm tones for two minutes.
• The »Standby« key switches the machine to standby mode.
  
  - Monitoring and alarms are turned off and the ventilator stops.
  
  - Fresh gas Monitoring continues.