Input Fresh Gas Operations
5 - 6 046-004667-00 A7™ Operating Instructions
NOTE: When viewing the readings on the total flowmeter, keep your visual
angle at the same level of the float. The scale reading may vary when
viewed at a different angle.
NOTE: If the readings shown on the electronic flowmeters differ from that on
the total flowmeter, the electronic flowmeter prevails and the total
flowmeter is an approximate value.
NOTE: When the AC power supply is not connected and batteries are depleted,
the flow and the composition of the fresh gas are not affected. When
the individual N
2
O or Air supply fails, the corresponding fresh gas
cannot be achieved. When O
2
supply fails, both O
2
and N
2
O fresh gas
cannot be achieved.
5.4.2 Set Anesthetic Agent
NOTE: You do not need to perform this operation if inspiratory anesthetic
agent is not used.
NOTE: The A7 anesthesia system can be mounted with vaporizers
corresponding with Halothane, Enflurane, Isoflurane, Sevoflurane and
Desflurane. Only one vaporizer can be opened at a time because of the
interlock system.
5.4.2.1 Select the Desired Anesthetic Agent
1. Determine the anesthetic agent to be used and then fill the vaporizer.
NOTE: Install the vaporizers with a Selectatec interlock system that are
compliant to ISO 80601-2-13 on the A7 unit. Refer to the vaporizer
manufacturer’s Instructions For Use for filling or draining the vaporizer
and other information.
WARNING: Ensure that the correct anesthetic agent is used. The vaporizer is
designed with the specific anesthetic agent named on it and further
indicated by color coded labelling. The concentration of the anesthetic
agent actually output varies if the vaporizer is filled with the wrong
agent.
2. Mount the vaporizer filled with anesthetic agent onto the A7 Anesthesia System. See “Install
the Vaporizer” on page 2-5.
5.4.2.2 Adjust the Concentration of Anesthetic Agent
Push and turn the concentration control on the vaporizer to set the appropriate concentration of
anesthetic agent. For details about how to use the anesthetic agent, refer to the Vaporizer
Instructions for Use.
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