Mindray A7 Service Manual

Pneumatic Circuit System Problems Repair and Troubleshooting
5 - 70 046-006272-00 A7™ Service Manual
FIGURE 5-64
Set the A/D value of the inspiratory valve to cause the flow of inspiratory valve to reach a certain
value. In this case, the flows measured by the ventilator flow sensor, inspiratory flow sensor, and
expiratory flow sensor should be the same. Test multiple points by setting the A/D value of the
inspiratory valve. For each point, the flows measured by the three sensors should be the same. If not,
the measured value by the flow sensor is inaccurate. Troubleshoot the possible causes marked “*” in
the above table.

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