11 - 8
BeneVision N1 Patient Monitor Operator’s Manual
11.8
SpO
2
Troubleshooting
This section lists the problems that might occur. If you encounter the problems when using the equipment or
accessories, check the table below before requesting for services. If the problem persists, contact your service
personnel.
NOTE
•
For the physiological and technical alarm messages, see
11.9
Nellcor Information
■
Nellcor Patents
This device may be covered by one or more of the following US patents and foreign equivalents: 5,485,847,
5,676,141, 5,743,263, 6,035,223, 6,226,539, 6,411,833, 6,463,310, 6,591,123, 6,708,049, 7,016,715, 7,039,538,
7,120,479, 7,120,480, 7,142,142, 7,162,288, 7,190,985, 7,194,293, 7,209,774, 7,212,847, 7,400,919.
■
No Implied License
Possession or purchase of this device does not convey any express or implied license to use the device with
unauthorized replacement parts which would, alone, or in combination with this device, fall within the scope of
one or more of the patents relating to this device.
Problem
Solution
Do not see SpO
2
numeric area or waveform area
on the main screen
1. Check that the SpO
2
is set to display in the
Screen Setup
menu.
For more information, see
3.11.2 Displaying Parameter Numerics
.
2. Check that if the SpO
2
parameter switch is enabled. If not, enable
the SpO
2
measurement
.
For more information, see
3. Check that the cable connections of SpO
2
sensor and the
extension cable are tight. Replace the SpO
2
sensor or the extension
cable if needed.
Dashes “- -” display in place of numerics.
1. Check that the cable connections of SpO
2
sensor and the
extension cable are tight. Replace the SpO
2
sensor or the extension
cable if needed.
2. Reconnect the SpO
2
sensor if the alarm
SpO2 Sensor Off
appears.
3. Check the PI value. If the PI value is too low, adjust the SpO
2
sensor,
or apply the sensor to the site with better perfusion.
4. Move the sensor to the place with weaker light, or cover the sensor
with shade cloth if the alarm
SpO2 Sensor Off
appears.
Low amplitude SpO
2
signal
1. The SpO
2
sensor and NIBP cuff are placed on the same limb.
Change a monitoring site if necessary.
2. Check the PI value. If the PI value is too low. Adjust the SpO
2
sensor,
or apply the sensor to the site with better perfusion.
3. Check the sensor and its application site.
SpO
2
value is inaccurate
1. Check the patient’s vital signs.
2. Check for conditions that may cause inaccurate SpO
2
readings. For
more information, see
3. Check the monitor, the SpO
2
sensor for proper functioning.
