Treaton MV200, User Manual

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4.11 Additional functions
4-35
4.11.8
"
Freezing
"
/ analysis of graphs
The "freezing" of graphic curves is used for detailed analysis of the respiratory cycle and view-
ing via the encoder of instantaneous values of the curves. The function is active when the set
number of output graphs is from 1 to 3.
The activation function is performed via icon on the main screen, at the same time:
•
graphic representation of the icon becomes active (dark blue);
•
current scale of the graph is saved;
•
the last recorded point of the curve is drawn at the end right position;
•
all previous points of the curve are drawn in proportion to the left;
•
vertical marker line appears on all charts, corresponding to the time of pressing the freeze
button;
•
line of instantaneous values of the curves corresponding to the position of the marker line
appears above graphs;
•
marker line is moved to the desired position by encoder;
•
at the repeated pressing the icon, "freezing" of the curves is canceled. Current cycle begins
to draw from the random moment.
Figure 4.8 – Pressed button “Freezing”
At rotating the encoder marker line moves to the left/right and accordingly to its position instan-
taneous values including time are changed. Moving the marker line can also be done by touch-
ing in the certain area of graphs. Time is counted down from the moment of pressing (eg. – 3.21
s).
4.11.9 Display brightness control
The function allows to change the display brightness separately for the day and night operation
mode with the icon or on the main screen of the device (Figure 4.4, position 9).
Night mode of the display is switched automatically from 24 pm to 5 am.
By clicking on the icon display mode is switched to the opposite (regardless of the time).
Brightness of the display can be adjusted through the [Menu] → [Service menu] → [Calibration]
→ [CIND] → [Day brightness] or [Night brightness]. The brightness of the day screen varies