Mindray A7 Service Manual

A7™ Service Manual 046-006272-00 1 - 17
Theory of Operation Gas Flow
FIGURE 1-8
As shown in the following figure, the gas from the cylinder gas supply is divided into two limbs after
being cleaned by the filter. One limb is directly connected to the high pressure gauge and the other
limb is degraded to 440 kPa by the high pressure reducing valve and then output from the check
valve. After the gas from the cylinder gas supply is mixed with the gas from the pipeline gas supply,
the gas mixture is output to the regulator. Currently, the system provides only a cylinder connector.
The connector complies with CGA V-1. Cylinders of the E size are supported. The capacity of a
cylinder is limited; therefore, it is recommended that the cylinder gas supply is used as the backup
gas supply to prevent gas supply exhaustion.
FIGURE 1-9

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