Mindray A9 Service Manual

6-42
6. The screen shown below is displayed upon successful zeroing. Select Done to exit the calibration
screen.
6.3.6.3 Common Failures and Recommended Actions
Failure
Description
Possible Cause Recommended Action
Display E A zero point error occurs in the PEEP
sensor.
1. Calibrate the sensor.
2. Replace the VCM.
Display F The pressure change is nonlinear.
The larger the expiratory valve
sealing current, the smaller the
pressure.
1. Check for leakage.
2. Replace the drive gas assembly.
Display 10 The expiratory valve is nonlinear.
The larger the expiratory valve
sealing current, the smaller the
sampling current.
Replace the drive gas assembly.
Display 34
The drive gas pressure is low. 1. Replace or connect a gas supply to
keep the gas supply pressure within
280–600 kPa (40 psi–87 psi).
2. If the gas supply is normal, check the
gas supply pressure switch.

Mindray A9 Specifications

General

Type	Anesthesia Workstation
Integrated Gas Analysis	Yes
Backup Battery	Yes
Operating Temperature	10°C to 40°C
Storage Temperature	-20°C to 55°C
Battery Type	Lithium-ion
Ventilation Modes	Volume Control, Pressure Control, SIMV, Manual Ventilation
Display	Touchscreen
Patient Monitoring	ECG, SpO2, NIBP, EtCO2, Temperature
Connectivity	Ethernet, USB
Portability	Mobile (with wheels)
Battery Life	Minimum 90 minutes (typical)
Altitude	Up to 3000 meters
Power Supply	100-240 VAC, 50/60 Hz
Charging Time	Approximately 4 hours
Storage	Internal storage for patient data and system logs
Supported Languages	Multiple languages
Certifications	CE, FDA