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6 Alarms and Troubleshooting
M1132382
6-9
Minimum system
shutdown and
monitoring alarms
There are two special alarm types:
•
Minimum system monitoring alarms stop mechanical ventilation.
• Minimum system shutdown alarms stop mechanical ventilation
and monitoring.
The software goes to minimum system monitoring when a non-
recoverable error occurs during bootup or normal operation. The
ventilator shows data and mechanical ventilation stops. ‘Monitoring
only’ appears in the Alarm message area and a specific failure
message appears in the User message area.
The following are minimum system monitoring alarms:
•
Manifold pressure sensor failure.
• Pressure limit switch failure.
• Flow valve (DAC) failure.
• Flow valve (current) failure.
• Valve power failure.
A severe malfunction causes minimum system shutdown alarms.
This condition prevents mechanical ventilation and monitoring. If this
condition occurs:
•
Ventilate manually.
• Use a stand-alone monitor.
• Cycle system power (On-Standby-On).
If the alarm clears, restart mechanical ventilation. If the alarm does
not clear, contact a Datex-Ohmeda
trained service representative.