Alarm – Cause – Remedy Chapter 12 - Troubleshooting
Apollo Operator’s Manual 203
Part Number: 90 38 237, 5th edition
Priority Message Cause Remedy
Caution NEGATIVE PRESSURE Insufficient supply of fresh gas. Set adequate fresh-gas flow on
anesthesia machine. Flush system if
necessary.
Bronchial aspiration during ventilation. Check bronchial aspiration.
Negative pressure due to fault in
ventilator.
Check that upper diaphragm has been
fitted correctly.
Call DrägerService.
Anesthetic gas scavenging system faulty. Call DrägerService.
Warning
/
Advisory
NO AIR SUPPLY* Compressed air supply has failed. Open optional backup air cylinder.
Check piped medical air supply.
1
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.
Warning
/Advisory
NO FRESH GAS
2
* No fresh-gas flow set. Open flow control valves and adjust flow.
Warning
/Advisory
NO N
2O SUPPLY* N2O supply has failed. Open N2O backup cylinder.
Check central gas supply.
1
Pipeline supply hose not connected or
kinked.
Check connection to central supply.
N
2O cylinder empty or closed. Connect a full N2O cylinder or open the
cylinder valve.
Warning NO O
2 SUPPLY O2 supply has failed. Open O2 backup cylinder.
Check central supply.
Pipeline supply hose not connected or
kinked.
Check connection to central supply.
1
)
O2 cylinder empty or closed. Connect a full O2 cylinder or open the
cylinder valve.
Warning NO SPO
2 PULSE No pulse signal detected with the SpO2
measurement for approx. 10 seconds.
Check patient's condition!
Check application of the SpO
2 sensor.
NiBP measurement on the same arm. Measure blood pressure on other arm.
Advisory/
–
O2 CYLIND. CONNECT.?* Pressure sensor of backup cylinder not
connected.
Check pressure sensor connection.
1. Disconnect the connector from the wall supply in the event of a prolonged gas failure.
Otherwise the central gas supply may become contaminated!
* Alarm can be downgraded to specified lower priority or canceled.
2. This alarm can be deactivated by trained service personnel at customer request.