Mindray VS8, Service Manual

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4-4 VS 9/VS 8 Vital Signs Monitor Service Manual
4.5 Module Performance Tests
4.5.1 SpO
2
test
Test the status of the SpO
2
function.
Test Method 1
Tool required:
 None.
Test procedure
1. Connect the SpO
2
sensor for adult to the SpO
2
connector on the monitor. Set
Patient Category
to
Adult
and
PR Source
to
SpO
2
on the monitor.
2. Apply the SpO
2
sensor to your ring finger.
3. Check the Pleth wave and PR reading on the screen.
4. Remove the SpO
2
sensor from your finger and check that the SpO
2
sensor off alarm
is triggered.
Measurement validation:
The SpO
2
accuracy has been validated in human studies against arterial blood sample
reference measured with a CO-oximeter. Pulse oximeter measurements are statistically
distributed, and only about two-thirds of the measurements can be expected to fall
within the specified accuracy compared to CO-oximeter measurements.
NOTE

The SpO2 simulator can only be used to verify that the pulse oximeter
operates properly. It cannot be used to verify the accuracy of the pulse
oximeter or the SpO2 sensor. To verify the accuracy, clinical tests are
required.
Test Method 2
Tool required:
 SpO
2
simulator, Index-2 recommended
Test procedure
1. Connect the SpO
2
sensor to the SpO
2
simulator.
2. Selected the model and manufacturer of the SpO
2
module to be tested on the
simulator, and set the simulator as follows: SpO
2
to 96% and Pulse Rate to 80 bmp.
3. Set the patient type to Adult , Pediatric , and Neonatal respectively. Observe the
monitor and make sure the displayed SpO
2
and Pulse Rate value fall in the following
range.