GE Datex-Ohmeda Aisys Carestation User Manual

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.

GE Datex-Ohmeda Aisys Carestation Specifications

General

Type	Anesthesia Machine
Manufacturer	GE Healthcare
Model	Aisys Carestation
Power Requirements	100-240V AC, 50/60 Hz
Display	High-resolution color touchscreen
Ventilator Type	Electronically controlled ventilator
Ventilation Modes	Volume Control, Pressure Control, SIMV, Pressure Support, Manual
Gas Delivery	Oxygen, Nitrous Oxide, Medical Air
Power Supply	AC mains, Battery backup
Integrated Monitoring	Yes
Communication	Ethernet
Connectivity	Ethernet
Alarms	Comprehensive alarm system for ventilation, gas delivery, and patient monitoring parameters