General System Overview Product Description
1 - 6 046-004667-00 A7™ Operating Instructions
• Drive gas port, designed for use with oxygen as the drive gas
• Fresh gas port
• Exhaust gas port
• Flow sensor pressure transmission pipeline port
The breathing system contains the following ports for end-user connections:
• Inspiratory port for Inspiratory hose of patient breathing circuit
• Expiratory port for Expiratory hose of patient breathing circuit
• Manual Breathing Bag Arm
•Water trap
• Leak test port for sealing the breathing circuit during leak testing
1.1.8 Active Anesthetic Gas Scavenging System (AGSS)
The A7 includes a waste gas scavenger that attaches to the side rail mount on the system. The A7
provides a port for the connection of the waste line from an anesthetic gas monitor.
1.1.9 Passive Anesthetic Gas Scavenging System (AGSS)
The A7 includes a passive waste gas scavenger. The inlet port of the scavenger connects with the
AGSS port and the exhaust port connects with the hospital's waste gas scavenging system.
1.1.10 Negative Pressure Device
The negative pressure device is mainly composed of negative pressure regulator. It is used for
collecting medical waste liquid and provides overfill protection to prevent fully collected waste liquid
from flowing backward so as to ensure the tubing safety.
1.1.11 Power Management / Battery Supply
The advanced power management system of the A7 provides AC power for main system functions
while charging the system’s internal battery supply. During AC power failure, the A7 will operate on
battery power for a minimum of 90 minutes with two (2) new batteries installed. See ‘‘Battery Power
Specifications’’ on page 9-6.
A recessed main switch is provided to power the system ON and to put the system in the Standby
mode where the battery supply continues to charge as necessary when the A7 is plugged into an
external power source. The main switch also stops the O
2
fresh gas supply when the A7 is placed in
the Standby mode.
Auxiliary AC outlets on the rear of the machine operate independently of the main switch position.
The A7 provides four (4) auxiliary AC outlets. The auxiliary AC outlets are not powered when
operating the A7 on the internal battery supply.
NOTE: Use the battery supply in the A7 at least once every month to extend
battery life. Charge the battery supply before its power capacity is
depleted.
NOTE: Inspect and replace the battery supply at regular service intervals.
Long-term battery life depends on how frequent and how long the
battery supply is used. For a properly maintained and stored lithium-
ion battery, its long-term life expectancy is approximately three (3)
years. In more aggressive usage, life expectancy can be shortened.
Replacing lithium-ion batteries every three (3) years is recommended.
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