Structure of the Control Unit
The main components of the control unit are the screen,
a set of fixed function keys and the central rotary dial-
knob.
The function keys are used to call up the screen pages
appropriate to the application.
In addition to curves, measured values and status
displays, the screen contains, in a separate field, touch-
sensitive keys and touch-sensitive rotary knobs for
parameter setting.
The touch-sensitive screen keys and the screen knobs
are used in a similar way to ordinary keys and knobs:
Touching with the fingertip is equivalent to pressing a key
or taking hold of a knob.
The display always contains only the screen keys and
screen knobs required for function selection and/or
adjustment.
Settings and confirmations are made by turning and
pressing the central, rotary knob.
The keys for routine functions are placed to the right and
left on the outside of the front panel.
Frequently used function keys are placed on the right,
e.g.
the key »? « for selecting the standard page
or the »Alarm Reset« key for resetting or confirming
messages.
Less frequently used function keys are placed on the left-
hand side of the front panel,
e.g.
the key » « for switching the medicament nebuliser
on/off,
or the »O2 suction« key for bronchial suctioning.
Operating Concept
Structure of the Control Unit
16
D Evita 4
D Evita 4
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