GE Datex-Ohmeda Aisys Carestation Reference Manual page 276

Aisys
Error Log Entry
VAPCHK INCHECK LEAK
VAPCHK INFLOW LEAK
VAPCHK INFLOW
OUTFLOW
VAPCHK INFLOW ZERO
VAPCHK MAX FLOW
7-94
Condition / Test Configuration
Inflow Check Valve leak exceeds limit.
Test:
Mixer Flow: 8 l/min
Inflow Valve: On
Scav Valve: Off
Outflow Valve: Off
Mixer Flow reduced to 2 l/min.
Monitor eVap Inflow Flow for negative flow.
Inflow Valve leak exceeds limit.
Test:
Mixer Flow:2 l/min
Inflow Valve: Off
Scav Valve: On
Outflow Valve: On
Prop Valve: 65534
Inflow flow values indicate flow equal to Inflow
Valve leak rate.
Input and Output Flow Meters do not match to
within limit
Test:
Mixer Flow: 0.5 l/min
Inflow Valve: On
Scav Valve: Off
Outflow Valve: On
Prop Valve: 65534
Inflow Meter Zero Valve fails to operate
Test:
Mixer Flow: 0.5 l/min
Inflow Valve: On
Scav Valve: Off
Outflow Valve: On
Prop Valve: 65534
Verify Inflow reads at or near 0.5 l/min
Uncheck Zero Valves Auto and select Inflow
Zero – On. Verify LED comes on, valve clicks,
and Inflow reads at or near 0 ml.
Unable to achieve required maximum eVap
output flow
Action/Troubleshooting
Replace:
• Inflow Check Valve
Replace:
• Inflow Valve (right side valve block assembly
as viewed from front).
Replace:
• Flow Meter Block Assembly
• Agent Delivery Board
Replace:
If the test fails:
• Input Flow Meter Zero Valve (right side of Flow
Meter Block Assembly as viewed from the
front)
• Agent Delivery Board
If the test passes:
• Flow Meter Block Assembly
Replace:
• Backpressure Valve
• Proportional Valve
• Flow Meter Block Assembly
• Agent Delivery Board
04/08 M1046983