User's Manual

Table Of Contents
8 Monitoring SpO2
170
When a reference value has been set, the perfusion change indicator is displayed next to the perfusion
numeric.
Setting SpO2/Pleth as Pulse Source
1 In the Setup SpO menu, select Pulse (SpO) to enter the Setup Pulse menu.
2 In the Setup Pulse menu, select System Pulseand select the correct SpO
2
label from the pop-up
list.
Setting Up Tone Modulation
If tone modulation is on, the QRS tone pitch lowers when the SpO
2
level drops. Remember, the QRS
tone is derived from either heart rate or pulse depending on which is currently selected as the active
alarm source.
In the
Setup SpO menu, select Tone Modulation to switch between Yes (for on) and No (for off).
Tone modulation is licensed under US patent US 4.653.498 from Nellcor Puritan Bennett
Incorporated.
Setting the QRS Volume
In the Setup SpO menu, select QRS Volume and set the appropriate QRS tone volume.
Calculating SpO2 Difference
When a second SpO
2
measurement is present (either through the SpO
2
module or through an external
device), the monitor displays both SpO
2
values, and calculates the difference between them. The
second value is subtracted from the first.
1 From the Main Setup menu, select Measurements.
2 From the Setup ΔSpOmenu, select First SpO.
3 Choose the first measurement source.
4 Select Second SpO.
5 Choose the second measurement source.