Mindray A7 Service Manual

A7™ Service Manual 046-006272-00 1 - 75
Theory of Operation Ventilator Control and Drive
FIGURE 1-76 Valve Drive Board, Bottom View
Proportional Valve and Pressure Relief Valve Drive Interface, J4
Power Supply Interface, J2
Status Monitor Detection Interface, J8
PIN NAME FUNCTION
1 7V Pressure Relief Valve Power Supply
2 SAFE_VALVE Pressure Relief Valve Control Signal
3 7V Inspiration Valve Power Supply
4 INSP_VALVE Inspiration Valve Control Signal
5 7V PEEP Valve Power Supply
6 PEEP_VALVE PEEP Valve Control Signal
PIN NAME FUNCTION
1GND Ground
2GND Ground
3 12V 12V Power Supply
PIN NAME FUNCTION
1GND Ground
2 PNEUM_PRE_SW Circuit block pressure Switch Signal
3GND Ground
4NC /
5GND Ground

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