Mindray A7 Service Manual

Gas Flow Theory of Operation
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The following figure shows the physical pipeline gas supply inlet assembly of the system, including
the gas supply inlet assembly and regulators. The gas supply inlet assembly integrates the filter,
pressure relief valve, pressure switch and check valve. Gases regulated by the regulator will be output
to the flow control systems EFCS and BFCS.
FIGURE 1-6
The following figure shows the models of the gas supply inlet assembly and regulator. The gas from
the pipeline gas supply (280~600 kPa) enters the system through the gas supply connector. After
being cleaned by the internal filter of the inlet assembly, the gas is output to the regulator and
degraded to about 200 kPa. (The filter can be replaced after the pipeline gas supply connector is
removed).
FIGURE 1-7

Mindray A7 Specifications

General

Type	Anesthesia Workstation
Brand	Mindray
Model	A7
Display	15-inch color touchscreen
Oxygen Flush	Yes
Gas Inlets	O2, N2O, Air
Ventilation Modes	SIMV, PSV
Breathing System	Integrated
Gas Monitoring	O2, CO2, N2O
Monitoring Parameters	FiO2
CO2 Monitoring	Mainstream or Sidestream
Power Supply	100-240 V, 50/60 Hz