Nellcor OxiMax N-600X Operator's Manual page 172

Using SatSeconds
164
The alarm response time, assuming a SatSeconds limit set at 50 and a
lower alarm limit set at 90, is described and illustrated below.
In this example, the %SpO
there for a period of 2 seconds (2 points x 2 seconds = 4 SatSeconds).
The %SpO then drops to 86 for 3 seconds and then to 84 for 6
2
seconds. The resulting SatSeconds are:
%SpO
2
2 x
4 x
6 x
Total SatSeconds =
After approximately 10.9 seconds the SatSeconds alarm would sound,
because 50 SatSeconds had been exceeded. See the arrow ( ) in
Figure 11.
Figure 11: Alarm Response with SatSeconds
level drops to 88 (2 points) and remains
2
Seconds SatSeconds
2 = 4
3 = 12
6 = 36
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N-600x Operator's Manual