Mindray A9 Service Manual

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8.64 Disassemble the Encoder Knob (Top Hat-shaped)
8.64.1 Prepare for Disassembly
8.64.1.1 Tools
During parts disassembly and replacement, the following tools may be required:
 Phillips screwdriver
8.64.1.2 Preparations
Before disassembly,
 Make sure that the anesthesia machine is turned off and disconnected from the A/C power
source.
 Maneuver the anesthesia machine to an appropriate location and then apply the brake.
8.64.1.3 Pre-disassembly
Refer to step 1 in 8.1.7Remove the Display Assembly to remove the display assembly.
8.64.2 Remove the Encoder Knob (Top Hat-shaped)
1. Disconnect the cable from the encoder knob (top hat-shaped).
2. Pull out the encoder knob (top hat-shaped), turn the nut counterclockwise with the tool in
the service kit to remove it, and take out the encoder.
Nut

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