Figure 10: Year Month Display; Figure 11: Day Hour Display - Nellcor OxiMax N-550B Service Manual

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Audible Alarm Settings and Service Functions
Menu Item 8 (Time Set)
36
Option 0 = positive on alarm, normally negative
Option 1 = negative on alarm, normally positive
Option 2 = do not use
When the desired option is indicated in the %SpO
SatSeconds Alarm Limit button to initiate the current selection.
If menu item 8 is selected, the N-550B Year, Month, Day, Minutes, and
Seconds may be viewed and set. After selecting menu item 8, pressing the
SatSeconds Alarm Limit button displays the Year and Month setting of the
N-550B. See Figure 10. The "–" indicates that the Year is selected. Pressing
the SatSeconds Alarm Limit button will move the "–" to the Month display.
When an item is selected, indicated by the "–", the value may be set by
pressing the Adjust Up or Adjust Down button.

Figure 10: Year Month Display

Pressing the SatSeconds Alarm Limit button again will cause the Day Hour
display to appear. See Figure 11.

Figure 11: Day Hour Display

display, press the
2

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