Welch Allyn Connex IWS, Directions For Use Manual

Page: 215 / 266

Message Possible cause Suggested action
The sensor is defective. A sensor error occurred Replace the sensor.
Trend change detected. Review
patient history.
Patient measurements have changed enough to
require attention
Check the patient and patient
history.
CO2 messages
Message Possible cause Suggested action
CO2 not functional. Call for service. A nonrecoverable communications error has
occurred
Call for service.
Filter line disconnected. The sampling line is not connected to the monitor Connect a sampling line to the
monitor.
Check to ensure that the
sampling line plug is tightly
connected to the monitor.
Check for occlusion in gas line. The purge cycle failed to clear a blockage in the
sampling line
Replace the sampling line.
CO2 temperature out of range. CO2
might not be accurate.
CO2 module temperature is out of range Wait for the module temperature
to return to normal and the
module to reset before
calibrating CO2.
Move to a location where the
ambient temperature enables the
module temperature to return to
normal and the module to reset
before calibrating CO2.
Connect or clear filter line. Calibration failed because sampling line is
blocked or kinked
Check sampling line for
obstruction or kinks. Replace the
filter line if necessary.
Module is not ready for calibration because the
sampling line is not connected to the monitor
Check to ensure that the
sampling line plug is tightly
connected to the monitor.
Purging filter line. An occlusion was detected in the sampling line,
which automatically initiated a purge cycle
Wait for the purge cycle to clear
the blockage and the module to
be reset.
Check calibration gas
concentration.
The calibration gas is not flowing Check that the calibration gas is
turned on.
The calibration gas has the wrong CO2
concentration
Check that the calibration gas
has the correct concentration.
Check calibration gas flow. The calibration gas flow is unstable Check the sampling line for kinks
or obstructions.
Check all tubing connections for
leaks.
Directions for use Troubleshooting 209