Philips HeartStart MRx - Page 268

20 Troubleshooting Symptoms
256
Table 6 5 SpO
2
Monitoring Problems
Symptom Possible Cause Possible Solution
The SpO
2
waveform is not
displayed.
The sensor is not properly
connected or the sensor cable is
damaged.
The SpO
2
waveform is not
configured to be displayed and
there is not an unused wave sector.
• Check the sensor connection and cable.
• Try another sensor.
Use the Displayed Waves menu to select a wave sector
for display of the SpO
2
waveform.
SpO
2
Non Pulsatile INOP. The patient’s pulse is absent or too
weak to be detected.
The sensor has come off.
• Check perfusion at the measurement site.
• Check that the sensor is applied properly.
• Make sure the sensor site has a pulse.
• Relocate the sensor to another site with improved
circulation.
• If the message occurs due to NBP measurement on
the same limb, wait until the NBP measurement is
finished.
• Try another sensor.
SpO
2
Erratic INOP.
The SpO
2
numeric value is
replaced with a -?-.
SpO
2
measurement readings are
erratic.
• Check that the sensor is applied properly.
• Make sure the sensor site has a pulse.
• Relocate the sensor to another site with improved
circulation.
• Try another sensor.
SpO
2
Noisy Signal INOP. Excessive patient movement or
electrical interference.
• Minimize patient movement.
• Make sure the sensor cable is not positioned too
close to power cables.
SpO
2
Interference INOP.
The SpO
2
numeric value is
replaced with a -?-.
Ambient light is too high.
There is too much interference.
The sensor is damaged.
Cover the sensor with an opaque material to minimize
ambient light.
Make sure the sensor cable is not positioned too close
to power cables.
Make sure that the sensor cable is not damaged.
SpO
2
Unplugged INOP. The SpO
2
sensor is not connected. Check the SpO
2
connection.
SpO
2
Unplugged. Turn off
SpO
2
? message appears when
the device is turned on and the
SpO
2
sensor is not connected.
The SpO
2
sensor is not connected.
The software was not upgraded
after an SpO
2
repair or upgrade.
was performed.
• Check that the sensor connection is secure. Try
another sensor.
•Call for service.