Mindray A9 Service Manual

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2.2.6 Auxiliary O2/Air System
2.2.6.1 Auxiliary Flowmeter Monitoring Board
The auxiliary flowmeter monitoring board is the core control part of the auxiliary flowmeter of
the anesthesia machine. It is mainly used at a low flow of 0–15 L/min and can work
independently. The flow sensor is welded on the board. The auxiliary flowmeter monitoring
board controls the O2/air flow through the proportional valve, and monitors and feeds back the
O2/air flow through the flow sensor. In addition, the auxiliary flowmeter monitoring board also
drives the three-way valve. This board is configured with auxiliary O2/air software.
Installation position of the auxiliary flowmeter monitoring board
Auxiliary flowmeter monitoring board (top view)
Auxiliary flowmeter monitoring board

Mindray A9 Specifications

General

Brand	Mindray
Model	A9
Category	Medical Equipment
Language	English