Mindray A7 Service Manual

A7™ Service Manual 046-006272-00 1 - 77
Theory of Operation Ventilator Control and Drive
FIGURE 1-78 Sensor Interface Board, Bottom View
Sensor Interface Board Interface, J2
Test Point Definition
1.7.3 Battery
1.7.3.1 Battery Power
For A7 anesthesia system:
Battery: 11.1V, 4.5Ah×2 Lithium-ion Battery (sealed)
Battery Run Time: 90 minutes (new battery)
Battery Charge Time: 8 hours max from an initial charge of 10%.
PIN NAME FUNCTION
1 MON_BRD_SDA VCM I2C Data Signal
2 MON_BRD_SCL VCM I2C Clock Signal
3 VT Thermal Mass Flow Sensor Temperature Signal
4 VF Thermal Mass Flow Sensor Flow Signal
5 12V 12V Power Supply
6GND Ground
PIN NAME FUNCTION
TP1 3V3 Test 3.3V Power Supply
TP2 5V Test 5V Power Supply
TP3 5VA Test Analog 5V Power Supply

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