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Pulse oximetry
system is functional, they are incapable of providing the data required to properly
evaluate the accuracy of the system’s SpO
2
measurements.
Many functional testers and patient simulators have been designed to interface with
the pulse oximeter’s expected calibration curves, and may be suitable for use with
the pulse oximeter monitor and sensors. Not all devices, however, are adapted for
use with all digital calibration systems. While this will not affect use of the simulator
for verifying system functionality, displayed SpO
2
measurement values may differ
from the setting of the device. For a properly functioning monitor, this difference
will be reproducible over time and from monitor to monitor within the performance
specifications of the test device.
If a particular calibration curve is accurate for the combination of a pulse oximeter
monitor and sensor, a functional test device can measure the contribution of a
monitor to the total error of a monitor/sensor system. The functional test device can
then measure how accurately a particular pulse oximeter monitor is reproducing
that calibration curve.
Using the SpO₂ measurement
Primary and secondary SpO
2
measurement sources
It is possible to measure SpO
2
from two different measurement sources
simultaneously. The primary SpO
2
source is labeled SpO2 and the secondary SpO
2
source is labeled SpO2(2) .
The following table shows the acquisition modules that may be used as primary and
secondary SpO
2
measurement sources.
Primary SpO
2
source Compatible secondary SpO
2
source(s)
PDM, TRAM, PSM
●
Tram-Rac SpO
2
module
●
E-NSATX
●
E-MASIMO
●
Unity Network ID connectivity device
E-NSATX, E-MASIMO
●
Unity Network ID connectivity device
Unity Network ID connectivity
device
●
Tram-Rac SpO
2
module
●
E-NSATX
●
E-MASIMO
E-NSATX and E-MASIMO modules require a PDM with no
SpO
2
sensor connected in order to work as a secondary
SpO
2
source when the Unity Network ID connectivity device
is the primary SpO
2
source.
Changing the SpO
2
waveform size
NOTE
All other modules except PSM.
1. Select the SpO
2
parameter window.
2. Select the SpO2 or SpO2(2) tab.
3. Choose the size from the Size list: 1x , 2x , 4x , or 8x .
208 CARESCAPE Modular Monitors 2062971-001