Mindray A9 Service Manual

6-37
9. The screen shown below is displayed if the calibration fails.
6.3.5.4 Common Failures and Recommended Actions
Failure
Description
Possible Cause Recommended Action
Display 1
An error occurs in the communication
with the calibration device.
1. Restart the anesthesia machine
and/or calibration device.
2. Check the communication
cable.
3. Replace the VCM or
calibration device.
Display 2 The zero point of the calibration device
is beyond the valid range of [–0.3, 0.3]
cmH2O.
Zero the calibration device.
Display 3
The pressure cannot be controlled
within the range of [1, 3] cmH2O.
1. Use the valve diagnosis tool
for diagnosis. Open the PEEP
valve within the range of
0–500 mA. If the AD values
collected by the inspiratory
pressure sensor increase
gradually, recalibration is
recommended.

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