7 Troubleshooting
M1046983 04/08
7-43
7.9 Technical Alarms
The Error Log includes technical alarms and other error conditions reported by the
system.
A technical alarm, as apposed to a parameter alarm, is an alarm condition that exists
whether or not a patient is connected to the machine. Technical alarms include:
• Failed state alarms - internal problem prevents normal operation
• Ventilator failure alarms
• Vent Fail. Monitoring Only alarms
• Alternate O
2
state alarms - caused by electronic gas mixer failure
Alarms that do not fit into any particular category but are technical in nature are
referred to as a Status alarms in this table.
Source table: AC = Anesthesia Computer
DC = Display Controller
EV = Electronic Vaporizer
Mixer = Electronic Gas Mixer
PC = Power Controller
Vent = Ventilator Interface
Error Log Entry
Alarm Text
Condition (Basic info)
Priority Source Enabling Criteria
Action/Troubleshooting
+12.0V H AMPS GAS
SEL VALVES
Alternate O
2
Screen.
AC detected high current to
the Gas Select Valves.
Medium
AC
Fresh gas select valves
+10VA is turned On.
Disconnect the flex cable from each three-way and NC gas select valves.
Measure the resistance of each valve:
• should be approximately 75Ω.
+12.0V H AMPS ALT
O2
Alternate O
2
Screen.
AC detected high current.
Medium
AC
Alternate O
2
valve
+10VA turned On.
Disconnect the flex cable from the NO Alternate O
2
valve.
Measure the resistance of the NO Alternate O
2
Bypass Valve:
• should be approximately 75Ω.
+12.0V H AMPS MIXER
Alternate O
2
Screen.
Status bit shows current high. Medium
AC
Mixer +10VA turned
On.
On the Anesthesia Board Power window (Section 12.7.2) of the PC Service App, observe that
Mixer 10VA Amps
is reported as
Fail
.
Turn off power to the machine and disconnect the system interface harness from the Mixer.
If the
Mixer 10VA Amps
is now reported as
OK
,
• replace the Mixer.
If the
Mixer 10VA Amps
is still reported as
Fail
,
• inspect the harnesses from the ACB to PCB and PCB to Mixer for cross connections or damaged pins.
• replace the ACB.
Summary of Contents for Datex-Ohmeda Aisys Carestation
Page 1: ...Aisys Anesthesia Machine Technical Reference Manual ...
Page 16: ...Notes xiv 04 08 M1046983 ...
Page 32: ...Notes 1 16 04 08 M1046983 ...
Page 158: ...Notes 5 20 04 08 M1046983 ...
Page 288: ...Notes 7 106 04 08 M1046983 ...
Page 325: ...9 Repair Procedures M1046983 04 08 9 29 The rear inverter A B C ...
Page 356: ...Notes 9 60 04 08 M1046983 ...
Page 401: ...10 Illustrated Parts M1046983 04 08 10 45 14 1 2 3 6 5 4 5 8 7 15 16 18 17 10 9 11 12 13 or ...
Page 452: ...Notes 10 96 04 08 M1046983 ...
Page 466: ...11 14 04 08 M1046983 Notes ...
Page 470: ...Aisys 12 4 04 08 M1046983 12 3 System Schematics 12 3 1 Power Schematic ...
Page 478: ...Aisys 12 12 04 08 M1046983 12 6 3 Tools Transfer Logs ...
Page 497: ......