Nonin 9847 Operator's Manual page 49

Problem
Pulse Quality LED does not
blink green.
The Pulse Quality display is
blinking red and the SpO
or Pulse Rate displays are
dashes.
Numeric display segments are
missing.
The lower CO bar is not
2
illuminated.
Only the third and sixth CO
bars are illuminated.
Degradation of device
performance.
Note: If these solutions do not correct the problem with your device, please contact Nonin Technical
Service at (800) 356-8874 (USA and Canada), +1 (763) 553-9968, or +31 (0)13 - 79 99 040 (Europe).
42
Possible Cause
Inadequate pulse signal
or
the sensor site is poorly perfused
or
the sensor is not correctly positioned.
The sensor is restricting blood
circulation at the sensor site.
Circulation is reduced due to excess
pressure between the sensor and a
hard surface.
Excessive ambient light.
Excessive patient motion.
The patient is wearing nail polish or
artificial nails.
Performance degradation from:
• arterial catheter
• blood pressure cuff
• infusion line.
Inadequate pulse signal at sensor site.
and/
2
Inadequate pulse signal due to
excessive motion.
SpO Sensor failure.
2
Defective LEDs.
The CO sensor is not plugged in.
2
The CO sensor has become
2 2
disconnected.
The airway adapter tube is not
connected to the CO
The light path is blocked.
The CO sensor lamp is burned out.
2
Electromagnetic interference (EMI).
Reposition the sensor.
Remove the restriction to increase
blood circulation at the sensor site
or relocate the sensor.
Allow the sensor and the application
site to rest comfortably on the
surface.
Reduce ambient light.
Reduce patient motion.
Remove nail polish or artificial nails.
Reduce or eliminate the source.
Assess the patient. Reposition
sensor or select an alternate sensor
site.
Reduce patient motion. Reposition
or relocate the sensor.
Replace the SpO
Discontinue use of the device.
Plug the CO
Reconnect the CO
Verify that the airway adapter tube is
sensor. connected, with windows toward the
2
sensor.
Replace the airway adapter tube.
Replace the CO
Remove the device from the EMI
environment.
Troubleshooting
Possible Solution
sensor.
2
sensor in.
2
sensor.
2
sensor.
2