7100 Anesthesia Ventilator
4-26
02/03 1006-0836-000
4.10.2
Display
Discrete I/O Signals
The
Display Discrete I/O Signals
menu displays discrete binary signals
associated with machine switch positions.
There are several types of switches in the machine:
•
some switches are mechanically operated,
•
some switches are pneumatically operated,
•
some switches are electronic,
•
some “switches” are software derived.
Mechanical switches
•
ACGO Switch — Vent or Aux CGO (
machines equipped with ACGO
)
•
CO
2
Bypass — Off or On (
Off by default in Aespire machines
)
•
Canister Status — Closed or Open (
Closed by default in Aespire machines
)
•
Control Panel Cover — Closed or Open (
refers to removal of ABS on Aespire
machines
)
•
Bag/Vent Status — Vent or Bag
Pneumatic switches
•
O
2
Supply Pressure — Pressure or No Pressure
•
O
2
Flush — Off or On
•
Supply Pressure — Pressure or Low Pressure (drive gas)
Electronic switches
•
O
2
Sensor Status — Connected or Disconnected
•
Circuit module ID
(
Hard-wired to indicate Circle Module on Aespire machines
)
•
Pressure Limit Status — Off or On (if Paw exceeds 108 cm H
2
O)
Software “switches”
•
Safety Valve Circuit — Pass or Fail
•
VBUS Voltage — Pass or Fail
Module
Switch One
Switch Two
Switch Three
Circle
Off
Off
On
Bain/Mapleson D
On
Off
Off
(no module)
On
On
On
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