Mindray A9 Service Manual

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2.2.5 EFCS Flowmeter System
2.2.5.1 EFCS Flowmeter Monitoring Board
The EFCS flowmeter monitoring board is the core control part of the EFCS flowmeter of the
anesthesia machine. The EFCS flowmeter monitoring board controls the O2/N2O/air flow
through the proportional valve, and monitors and feeds back the O2/N2O/air flow through the
flow sensor. In addition, the total flow monitored by the O2 flow sensor is processed by the
EFCS flowmeter monitoring board. Moreover, the EFCS flowmeter monitoring board drives the
three-way valve, switch valve, and electromagnet, so as to switch to the mechanical BFCS when
the proportional valve, flow sensor, or other electrical components fail. This board is configured
with EFCS flowmeter software.
Installation position of the EFCS flowmeter monitoring board
EFCS flowmeter monitoring board (top view)
EFCS flowmeter
monitoring board

Mindray A9 Specifications

General

Type	Anesthesia Workstation
Integrated Gas Analysis	Yes
Backup Battery	Yes
Operating Temperature	10°C to 40°C
Storage Temperature	-20°C to 55°C
Battery Type	Lithium-ion
Ventilation Modes	Volume Control, Pressure Control, SIMV, Manual Ventilation
Display	Touchscreen
Patient Monitoring	ECG, SpO2, NIBP, EtCO2, Temperature
Connectivity	Ethernet, USB
Portability	Mobile (with wheels)
Battery Life	Minimum 90 minutes (typical)
Altitude	Up to 3000 meters
Power Supply	100-240 VAC, 50/60 Hz
Charging Time	Approximately 4 hours
Storage	Internal storage for patient data and system logs
Supported Languages	Multiple languages
Certifications	CE, FDA