Vaporizer Checkout Troubleshooting - GE Datex-Ohmeda Aisys Carestation Reference Manual

7.10.13 Vaporizer Checkout Troubleshooting

Error Log Entry
VAPCHK BACKPRESSURE
VAPCHK CASS LEAK
VAPCHK CASSETTE
COMM
VAPCHK CASS PRESS
RANGE
VAPCHK CONFIG
VAPCHK FLOW CONTROL
M1046983 04/08
Condition / Test Configuration
Pressure generated by the Backpressure Vale is
too low.
Mixer outlet pressure with 200 ml/min flow and
Inflow Valve closed is below limit.
Cassette / eVap leak greater than limit.
eVap Inflow flow reading greater than limit when
cassette flow is off.
Test:
Mixer Flow: 2 l/min
Inflow Valve: On
Scav Valve: Off
Outflow Valve: Off
Prop Valve: 0
Digital communication with Test Cassette
Failed.
Ambient pressure as measured by Cassete
Pressure Sensor outside limit.
Reported pressure is outside the service
altitude conditions with the Scavenging Valve
open.
Machine is ACGO and circuit selector switch is in
the ACGO position OR Bag/Vent switch is in the
Bag position
Unable to control eVap output flow.
7 Troubleshooting
Action/Troubleshooting
Replace:
• Backpressure Valve
Retest with different cassette to determine if
leak is in the cassette or eVap.
If leak is in eVap, replace:
• Connector Valves and Spring Seals
• Tubbing/fittings between eVap and Mixer
• Scavenging Valve
Check, replace, and retest in the following
order:
• All four magnets on Cassette Interface Board
fingers draw down and make contact with Test
Cassette contacts.
• Cassette Interface Board to Agent Delivery
Board cable connections are secure.
• Cassette Interface Board.
• Agent Delivery Board.
Disconnect the scavenging tube (blue).
Restart test:
• If the test passes, troubleshoot occlusion in
scavenging circuit tubing. Look specifically for
occluded Scavenging Downtube.
If the test still fails, replace:
• Flow Meter Block Assembly
User training/information.
Replace:
• Proportional Valve
• Backpressure Valve
• Flow Meter Block Assembly
• Agent Delivery Board
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