Alarm – Cause – Remedy Chapter 12 - Troubleshooting
Apollo Operator’s Manual 197
Part Number: 90 38 237, 5th edition
Alarm – Cause – Remedy
Apollo divides alarm messages into three categories based on
priority and identified by different colors:
The alarm messages are listed below in alphabetical order.
The list is intended to help identify the cause of an alarm
message and to remedy the fault rapidly.
Machine-related alarms identified by an asterisk (*) can be
downgraded to a lower priority or canceled altogether by
pressing the > < key. For these alarms the lower priority is
shown following the “/” (if a dash (
–) is shown, it means that
alarm can be canceled).
Warning - message with high priority (red)
Caution - message with medium priority (yellow)
Advisory - message with low priority (white)
Priority Message Cause Remedy
Advisory 2 MIXED AGENTS A second anesthetic agent has been
detected.
Wait for the transition phase to end after
changing anesthetic agents.
Check vaporizer filling level.
Flush system if necessary.
Check fresh gas settings.
Caution 3 MIXED AGENTS
1
A mixture of more than two anesthetic
agents has been detected.
Check vaporizer filling level.
Flush system if necessary.
Check fresh gas settings.
Wait for transition phase to end.
Advisory AGENT SENSOR FAIL
2
Anesthetic gas measurement system has
failed.
Use external gas measuring system.
Call DrägerService.
Advisory/
–
AIR CYLIND. CONNECT?* Pressure sensor of backup cylinder not
connected.
Check pressure sensor connection.
Caution/
Advisory
AIR CYLIND. EMPTY* Backup air cylinder empty and central air
supply not available or not connected.
Use a new backup air cylinder.
Use the central gas supply.
Caution AIR FLOW MEAS. FAIL Fresh-gas flow measurement for air has
failed.
Use only oxygen as fresh gas and
observe total flow meter.
Check fresh-gas flow settings using total
flow meter and set a fresh-gas flow
greater than or equal to measured or set
minute volume.
Call DrägerService.
Advisory AIR PIPELINE FAIL Compressed air supply has failed. Open optional backup air cylinder.
Check piped medical air supply.
Pipeline supply hose not connected or
kinked.
Check connection to piped medical air
supply.
Optional air cylinder is empty or closed. Connect a full air cylinder or open the
cylinder valve.
Compressed air compressor has failed. Check compressor.
Advisory
Caution
Warning
APNEA
3
Breathing/ventilation has stopped
(detected by pressure, volume, and CO2
monitoring).
Patient must immediately be
ventilated manually!
Check patient's spontaneous breathing
ability.
Check ventilator settings.
Check fresh gas setting.
Check that everything is connected.
Check hose system and tube.
1. The simultaneous presence of 3 agents cannot always be identified.
2. Displayed in Standby mode only.
3. Priority in accordance with maximum priority of the individual alarms.
* Alarm can be downgraded to specified lower priority or canceled.
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