Covidien Nellcor OxiMax N-600x Operator's Manual page 81

Using Monitor Trend Data
5. Press the ZOOM softkey. The Zoom menu displays.
Pressing the TIME softkey cycles the displayed trend time scale
through 48 hours, 36 hours, 12 hours, 8 hours, 4 hours, 2 hours,
1 hour, 30 minutes, 15 minutes, 40 seconds and 20 seconds.
Note: The 20-second and 40-second trend displays are in tabular
format. The display below begins in the normal response mode
(left side of the display) and switches to the fast response mode.
Pressing the SCALE softkey cycles the displayed trend amplitude
scale through ±5 points, ±10 points, ±15 points, ±20 points,
±25 points, ±30 points, ±35 points, ±40 points and ±50 points
above and below the data point under the cursor. The saturation
graphical monitor trend display vertical scale default setting is
from 10 to 100 if there is no data under the cursor. The pulse rate
graphical monitor trend display vertical scale is from 5 to 250 if
there is no data under the cursor.
Pressing the AUTO softkey presets the amplitude of the graphed
trend data. The maximum trend data point is rounded up to the
nearest multiple of 10, this value is the top of the graph display.
The minimum trend data point is rounded down to the next
multiple of 10. Then 10 is subtracted from the rounded down
number, this value is the bottom of the trend graph.
N-600x Operator's Manual 73