
10-5
ETCO
2
Solutions (Prism SE Only)
Problem Possible Causes Action/Solution
No Sensor message. No filterline connected. Connect a filterline to monitor.
Filt Occl message. Filter occluded/airway blockage
detected.
Remove/Replace filterline.
SureTemp Solutions
Problem Possible Causes Action/Solution
T1 Position message. Incorrect probe placement or
movement.
Check location of probe to verify
monitor is set for position used.
For example, axillary, oral, or
rectal.
Unit never displays T1 Ready. Probe switch failure.
Probe not attached properly.
Probe never inserted into well.
Defective probe.
Defective cable.
Check/Replace probe switch.
Reattach probe properly.
Insert probe into well.
Replace probe.
Replace cable.
Unit constantly displays T1
initial.
Defective probe. Check/Replace probe.
Suspected inaccurate reading.
Incorrect probe covers.
T1 not ready.
Technique.
Verify Welch Allyn probe
covers are used.
Ready message not displayed
before attempted temperature.
Verify good clinical technique.
For example, sublingual pocket
w/oral reading.
T1 Error message. Defective probe.
Loss of communication.
Check/Replace probe.
Check/Replace SureTemp board.
Unit switches from predictive to
monitor mode automatically.
Ambient temperature above
90
o
F.
Patient temperature outside
predictive temperature range.
Relocate/Reposition unit.
Use MONITOR mode for
temperature measurement.
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