Mindray A8 Service Manual
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Mindray A8 Service Manual

Anesthesia system
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A N E S T H E S I A S YS T E M
Anesthesia System

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Summary of Contents for Mindray A8

  • Page 1 Service Manual A N E S T H E S I A S YS T E M Anesthesia System...
  • Page 2 Service Manual A N E S T H E S I A S YS T E M A N E S T H E S I A S YS T E M Anesthesia System...

  • Page 3: Intellectual Property Statement

    Mindray, nor the rights of others. Mindray does not assume any liability arising out of any infringements of patents or other rights of third parties.

  • Page 4: Preface

    Preface Manual Purpose This manual provides detailed information about the assembling, dissembling, testing and troubleshooting of the equipment to support effective troubleshooting and repair. It is not intended to be a comprehensive, in-depth explanation of the product architecture or technical implementation.

  • Page 5: Table Of Contents

    Table of Content Intellectual Property Statement ..................... I Revision History ........................I Preface ............................. II Manual Purpose ........................II Intended Audience ........................II Table of Content ........................1 1 Safety ..........................1-1 1.1 Safety Information ......................1-1 1.1.1 Warnings ......................1-1 1.1.2 Cautions ......................
  • Page 6 5.7.2 Vaporizer Self-Locking Test ................5-9 5.7.3 Vaporizer Interlock Test ..................5-9 5.7.4 Vaporizer Accuracy Test ................... 5-10 5.8 Mechanical Vaporizer Test (A8 only) ................5-11 5.8.1 Vaporizer Interlock Test ..................5-11 5.8.2 Vaporizer Back Pressure Test ................5-11 5.8.3 Vaporizer Accuracy Test ..................5-11 5.8.4 Vaporizer Leak Test ..................
  • Page 7 5.12 Negative Pressure Suction Tests .................. 5-17 5.13 Alarm Tests ........................5-17 5.13.1 Power Failure Alarm Test ................5-17 5.13.2 Breathing Circuit Alarm Tests ................ 5-17 5.13.3 O2 Supply Failure and Balance Gas Branch Flow Not Achieved Alarm Tests5-18 5.13.4 Ventilator-Related Alarm Tests ............... 5-19 5.14 System Ventilation Performance Tests ................
  • Page 8 7.3.6 Electronic Vaporizer Runtime Alarms .............. 7-27 7.3.7 AGSS Module Runtime Alarms ............... 7-31 7.3.8 Auxiliary O2/Air Module Runtime Alarms ............7-31 7.3.9 HFNC Module Runtime Alarms ..............7-32 7.3.10 External AG Module Runtime Alarms ............7-32 7.3.11 Internal AG Module Runtime Alarms ............7-36 7.3.12 BIS Module Runtime Alarms .................
  • Page 9 8.8 Disassemble the Inspiration and Expiration Connectors ..........8-6 8.8.1 Prepare for Disassembly..................8-6 8.8.2 Remove the Inspiration and Expiration Connectors ........... 8-6 8.9 Disassemble the Water Collection Cup ................8-6 8.9.1 Prepare for Disassembly..................8-6 8.9.2 Remove the Water Collection Cup ..............8-6 8.10 Disassemble the Volume Exchanger Assembly .............
  • Page 10 8.23.2 Remove the EFCS Flowmeter Monitoring Board .......... 8-21 8.24 Disassemble the EFCS Flowmeter FRU (O2/N2O/Air) ..........8-21 8.24.1 Prepare for Disassembly................. 8-21 8.24.2 Remove the EFCS Flowmeter FRU (O2/N2O/Air) ........8-21 8.25 Disassemble the EFCS Flowmeter Flow Sensors ............8-22 8.25.1 Prepare for Disassembly.................
  • Page 11 8.40.2 Remove the O2 Cell Calibration Valve Assembly ......... 8-36 8.41 Disassemble the Air Filter ................... 8-37 8.41.1 Prepare for Disassembly................. 8-37 8.41.2 Remove the Air Filter ..................8-37 8.42 Disassemble the AG Module ..................8-37 8.42.1 Prepare for Disassembly................. 8-37 8.42.2 Remove the AG Module .................
  • Page 12 8.58.1 Prepare for Disassembly................. 8-53 8.58.2 Remove the Backup Flowmeter Keyboard ............ 8-53 8.59 Disassemble the Alarm Lamp Board ................8-54 8.59.1 Prepare for Disassembly................. 8-54 8.59.2 Removing the Alarm Lamp Board ..............8-54 8.60 Disassemble the Speaker ..................... 8-54 8.60.1 Prepare for Disassembly.................
  • Page 13 11.1.10 Circuit Adapter Block Assembly ..............11-13 11.1.11 Boards ......................11-14 11.1.12 Work Surface and Left Cover Plate ............. 11-15 11.1.13 Mechanical Vaporizer Subsystem (A8) ............11-17 11.1.14 AGSS Assembly ..................11-18 11.1.15 VE Mounting Box Assembly ............... 11-19 11.1.16 Sensor Adapter Board PCBA ..............11-20 11.1.17 Drive Gas Assembly ..................
  • Page 14 A.1 A8 Tube Connection Diagram ..................A-1 A.2 A9 Tube Connection Diagram ..................A-2 B Guide Rail Load ....................... B-1...

  • Page 15: Safety

    Safety 1.1 Safety Information DANGER Indicates an imminent hazard that, if not avoided, will result in death or serious  injury. WARNING Indicates a potential hazard or unsafe practice that, if not avoided, could result in  death or serious injury. CAUTION Indicates a potential hazard or unsafe practice that, if not avoided, could result in ...
  • Page 16 Desflurane. The A9 anesthesia system can be used with Isoflurane, Sevoflurane and Desflurane. Only one anesthetic agent can be used at a time. For A8 anesthesia system, fresh gas flow must never be switched off before the  vaporizer is switched off. The vaporizer must never be left switched on without a fresh-gas flow.
  • Page 17 WARNING trigger an alarm. Set the alarm limits properly based on the patient conditions so that the alarm is  triggered before a hazardous situation occurs. Incorrectly set alarm limits may result in operating personnel not being aware of drastic changes in the patient’s condition.
  • Page 18 Oil and grease may be ignited at the same time. Therefore, oil and grease should not be used where oxygen enrichment may occur. Use of lubricants not recommended by Mindray may increase the danger of fire or ...
  • Page 19 AGSS may flow out to the atmosphere at a rate higher than 100 mL/min. When anesthetic gas delivery equipment needs to be configured for the A8  anesthesia system, make sure to configure a monitor that is compliant with the ISO...
  • Page 20  outlets are intended to supply power to additional equipment that form a part of the anesthesia system (i.e. vaporizers, Mindray N series monitors, etc.). Do not connect other equipment to these outlets, as patient leakage current may be affected. Each outlet is rated 3 A. The total current that may be drawn through all outlets is 5 A on the system.
  • Page 21 WARNING Remove all accessory equipment from the shelf before moving the anesthesia  machine over bumps or on any inclined surface. Heavy top loading can cause the machine to tip over causing injury. Possible explosion hazard. Do not operate machine near flammable anesthetic ...

  • Page 22: Cautions

    After servicing, functional, sensor, and system tests must be performed before  clinical use. Only vaporizers with Selectatec Interlock-Systems may be used with A8 anesthesia  system. Each time you replace the vaporizer, please carry out leak test for the breathing ...
  • Page 23 Do not connect any non-isolated devices to the DB9/RS232C interface of the  equipment. Do not connect any devices to the SB ports other than Mindray approved USB  storage devices and a supported USB mouse. Do not wash the inner surface of the oxygen sensor.
  • Page 24 This device uses high pressure compressed gas. When attaching or disconnecting  backup gas cylinders, always turn the cylinder valves slowly. Use the A8/A9 flow meters to bleed down the pressure, watching the cylinder gauge indicate the depleting cylinder pressure, before disconnecting the cylinder from the yoke.
  • Page 25 CAUTION After each exchange of a vaporizer, carry out a system Leak test.  Do not clean the machine while it is on and/or plugged in.  Pressing “cancel” at any time during the procedure will cancel the session's  settings and reload the previously-stored calibration coefficients.

  • Page 26: Notes

    When the liquid level is below the warning line, more anesthetic agent needs to be added. For the A8 anesthesia system, refer to the vaporizer Instructions For Use for filling the vaporizer and other information. For the A9 anesthesia system, refer to the Operator’s Manual for filling the vaporizer and other information.
  • Page 27 NOTE and close the cylinder valve slowly. Changes in inlet pressure, outlet resistance, or ambient temperature may affect the  accuracy of flow values. The power supplies, terminal units and pipeline systems can be supplied by one or  several different manufacturers. Regional or national regulations that apply to manufacturers of medical equipment ...
  • Page 28 FOR YOUR NOTES 1-14...

  • Page 29: Theory Of Operation

    The O2 flush button is in the traditional position near the front left corner of the table top. Safety systems within the A8/A9 work to prevent hypoxic mixtures from being delivered to the patient. Nitrous oxide will not be delivered unless oxygen pressure is present. The safety system ensures that the oxygen content in the gas mixture exceeds 21%.
  • Page 30 When the A8/A9 uses AC power supply, the A8/A9 power management system supplies power for its main system while charging its internal battery. In case of an AC power failure, the A8/A9 operates on battery power. The main system switch can power on and off the system. The four auxiliary AC sockets on the A8/A9 at the rear of the machine operate independent of the main system switch.

  • Page 31: Appearance

    2.1.2 Appearance 2.1.2.1 Main Unit (Front View) Front view of the A8 anesthesia machine.
  • Page 32 Front view of the A9 anesthesia machine. Part Description Alarm lamp In case of an alarm, the alarm lamp is turned on in red, yellow, or cyan, indicating different alarm priorities. Red indicates a high priority, yellow indicates a middle priority, and cyan indicates a low priority.
  • Page 33 Part Description The gas flow increases when you rotate the knob counterclockwise, and decreases when you rotate the knob clockwise. Total flow control knob of You can rotate the knob to adjust the total flow of the the auxiliary flowmeter auxiliary flowmeter.
  • Page 34 Description clockwise or counter clockwise. Status display A8: used to display the status of the gas supply pressure, volume exchanger, electronic AGSS, and heating module of the breathing system. A9: used to display the status of the gas supply pressure,...
  • Page 35 2.1.2.2 Main Unit (Rear View) Part Description Display support arm The support arm is used to install the display. Fuse Each auxiliary power outlet is equipped with a fuse. Auxiliary AC power Four auxiliary AC power outlets are provided. outlet Cable hook The hook is used to suspend cables.
  • Page 36 The SB ports are used to connect to USB devices. and SB4) Do not connect any devices to the SB ports of the machine, except Mindray-approved USB devices and supported USB mouses. Equipotential lug The equipotential lug provides a grounding point. It eliminates the potential difference between ground cables of different devices to ensure safety.
  • Page 37 2.1.2.3 Main Unit (Left View) Part Description Mounting rail The mounting rail is a standard accessory arm for installing the monitor and other devices. Two mounting rails are provided on the left and right of the machine. High-flow O2 outlet The outlet is used to output high-flow O2.
  • Page 38 Part Description Module slot FDA: The module slot is used to install and identify the AG module described in this manual. Canada： The module slot is used to install and identify the NMT, AG, and BIS module described in this manual. Electronic AGSS flow You can rotate the knob clockwise or counterclockwise regulating knob...
  • Page 39 2.1.2.4 Main Unit (Right View) Part Description Work lamp switch The switch is used to turn on/off the work lamp. Three settings are provided: Off, Low, and High. You can turn on the work lamp only when the system switch is turned on. Work lamp The work lamp is located under the display to illuminate the work surface.
  • Page 40 A slight difference between the readings of the airway pressure gauge and the electronic readings is normal. Contact the after-sales service department of Mindray if the difference exceeds 15% Manual/auto switch The manual/auto switch is used to switch between mechanical ventilation and manual ventilation.
  • Page 41 Part Description Values on the APL valve and airway pressure gauge are for reference only. The calibrated patient's airway pressure is displayed on the user interface. 2.1.2.6 Breathing System Part Description Breathing check valve You can inspect the status of the inspiratory and inspection window expiratory check valves from outside the machine.
  • Page 42 Part Description Absorber bypass assembly The absorber bypass assembly is used to retain the pressure in the breathing circuit when you replace the sodalime in the CO2 absorber canister. Water collection cup The water collection cup is used to collect condensate from the breathing system.

  • Page 43: Labels

    Part Description Negative pressure The knob is used to adjust the pressure of the negative regulating knob pressure suction device. Selection switch The switch is used to change the working mode of the negative pressure suction device. It can be set to FULL, OFF, or REG.
  • Page 44 Symbol Description Symbol Description Pipeline gas Gas cylinder Gas outlet Gas inlet Maximum value Minimum value Material: Material: polysulfone polyphenylsulfone Remove the volume Remove the O2 sensor exchanger O2 sensor connector Gas: O2 flush button Lock/Unlock: lock Lock/Unlock: unlock Manual ventilation Mechanical ventilation Drainage Water trap...
  • Page 45 Symbol Description Symbol Description Connect the filter APL valve Absorber canister on Absorber canister off Negative pressure suction Negative pressure gas device supply Degree of protection against harmful ingress of Degree of protection IPX14 water for the anesthesia IPX4 against harmful ingress of machine equipped with the water for the BIS module BIS module...
  • Page 46 Symbol Description Symbol Description No battery High-priority information Refer to instruction Identifier: manufacturer manual/booklet The product complies with EU Medical Devices Directive (93/42/EEC) and meets the basic requirements in Annex I of the directive, so it has the CE mark. Electrical: WEEE (Waste of Electrical and Electronic Equipment) Marking.

  • Page 47: Acronyms And Abbreviations

    2.1.4 Acronyms and Abbreviations Acronym or Abbreviation Description Anesthetic agent ACGO Auxiliary common gas outlet AGSS Anesthesia gas scavenging system Alpha Power of the Alpha waveband/Total power Adaptive minute ventilation Airway pressure limit Apnea I:E Apnea inspiratory time:expiratory time ratio APRV Airway pressure release ventilation Burst count...
  • Page 48 Acronym or Abbreviation Description Inspiratory minute volume MVleak Leakage minute volume Nitrous oxide Neuromuscular transmission Oxygen Pinsp Pressure control level of inspiration Plimit Pressure limit level Airway pressure Pressure control ventilation PCV-VG Pressure control ventilation with volume guarantee PEAK Peak pressure PEEP Positive end-expiratory pressure PLAT...
  • Page 49 Acronym or Abbreviation Description Total power Tpause Percentage of inspiratory pause time Tslope Time for the pressure to rise to target pressure Trig Window Trigger window Volume control ventilation Tidal volume Inspiratory tidal volume 2-21...

  • Page 50: Subsystems

    2.2 Subsystems 2.2.1 Electrical Circuit wifi天线 C1 C2 J2&J3 P4*2 4*P5 4*P6 P8*2 P10*2 按钮 对插 J7&J8 P11*2 J4&J5 P14*2 J8 & P19*4 B14*2 P17*2 /B16 P18*2/*1 按钮 对插 按钮 对插 J16 & J18 按钮 对插 P39*3 P40*2 P38*2 P43*2 按钮...
  • Page 51 Electrical circuit diagram Parts List CPU board Alarm lamp board Key lighting board Host encoder board DC-DC power board Battery adapter board External I/O interface board Backlight board Small-display CPU board Auxiliary O2/air keyboard BFCS switch control board Power indicator board Gas inlet sensor board High-flow sensor board Auxiliary flowmeter monitoring...
  • Page 52 AC input interconnection line AC-to-DC line Connection line between the battery Connection line between the CPU adapter board and the DC-DC board board and motherboard Connection line between the HDMI network cable motherboard and the I/O interface board Connection line between the motherboard and the small-display System switch line CPU board...

  • Page 53: Power System

    The AC-DC board converts AC power into DC power to power the anesthesia machine. The AC-DC board of the A8 provides 19 V output, and that of the A9 provides 24 V output. The two AC-DC boards have different part numbers and are not interchangeable. Pay attention to the part numbers during servicing.
  • Page 54 5 V, 12 V, or 24 V, and manages charging of the lead-acid battery. This board is configured with power board software. In addition, the power boards of the A8 and A9 basically have the same appearance, as shown in the figure below. Pay attention to the part numbers during servicing.
  • Page 55 DC-DC board (A8) 2.2.2.3 Battery Adapter Board Two types of battery adapter boards are available: dual-battery adapter board and single-battery adapter board. The battery adapter board is an optional part installed inside the battery box. The battery adapter board transfers battery signals to the motherboard and provides the following functions: battery in-position detection, temperature detection, and current protection.

  • Page 56: Display System

    Auxiliary Outlet 1 Auxiliary Outlet 3 Auxiliary Outlet 4 Auxiliary Outlet 2 Breaker 1 Breaker 2 Breaker 3 Breaker 4 2.2.2.5 Others The anesthesia machine also contains the heating module, lead-acid battery, and other parts. The heating module is driven by the power board and provides dual overheating protection by means of software and hardware.
  • Page 57 Large-display CPU board (top view) Large-display CPU board (bottom view) 2.2.3.2 Display and Touchscreen An 18.5-inch 1920×1080 full laminated display assembly is used, consisting of a display and a touchscreen. It acts as the main input/output part for man-machine interaction. 2.2.3.3 Key Lighting Board The key lighting board is installed at the bottom of the display assembly for the lighting of the work surface.
  • Page 58 Key lighting board Installation position of the large-display CPU board Key lighting board 2.2.3.4 Alarm Lamp Board The alarm lamp board is mainly used to display the alarm status of the machine by blinking in red, yellow, or blue. Alarm lamp board Installation position of the alarm lamp board 2-30...
  • Page 59 Alarm lamp board (top view) Alarm lamp board (bottom view) 2.2.3.5 Small-Display CPU Board The small-display CPU board is mainly used to drive small-screen display and transfer auxiliary O2/air signals. This board is configured with small-display control software. Small-display CPU board Installation position of the small-display CPU board 2-31...

  • Page 60: Monitoring System

    Small-display CPU board 2.2.3.6 Small Display An 8.4-inch 800×600 display with an LVDS connector is used to display the dynamic graph of ventilation, gas supply pressure, and vaporizer working status. 2.2.4 Monitoring System 2.2.4.1 Monitoring Board The monitoring board detects the pressure and flow of the anesthesia ventilator and anesthesia breathing system, controls valves, monitors and collects the status, reads the O2 concentration, reads the switch status, monitors the pressure and flow in the circuit, and accurately controls the tidal volume.
  • Page 61 Monitoring board (top view) Monitoring board (bottom view) 2-33...
  • Page 62 2.2.4.2 Sensor Adapter Board Two types of sensor adapter boards are available: one with intrapulmonary pressure (Canada only) and the other without intrapulmonary pressure. The sensor adapter board is mainly used to process inspiratory and expiratory differential pressure sensor signals, PEEP sensor signals, PAW pressure sensor signals, intrapulmonary pressure sensor signals, and adapter three-way valve control signals.

  • Page 63: Efcs Flowmeter System

    2.2.5 EFCS Flowmeter System 2.2.5.1 EFCS Flowmeter Monitoring Board The EFCS flowmeter monitoring board is the core control part of the EFCS flowmeter of the anesthesia machine. The EFCS flowmeter monitoring board controls the O2/N2O/air flow through the proportional valve, and monitors and feeds back the O2/N2O/air flow through the flow sensor.
  • Page 64 EFCS flowmeter monitoring board (bottom view) 2.2.5.2 Flow Sensor Board The flow sensor board is mainly used to monitor the O2/N2O/air flow and feed back the detected signals to the EFCS flowmeter monitoring board through the I2C bus. Flow sensor board Installation position of the flow sensor board Flow sensor board (top view) Flow sensor board (side view)
  • Page 65 BFCS switch board Installation position of the small-display CPU board BFCS switch board 2.2.5.4 BFCS Backlight Board The BFCS backlight board is mainly used to provide lighting for the backup flowmeter. BFCS backlight board (top view) BFCS backlight board (bottom view) 2-37...

  • Page 66: Auxiliary O2/Air System

    2.2.6 Auxiliary O2/Air System 2.2.6.1 Auxiliary Flowmeter Monitoring Board The auxiliary flowmeter monitoring board is the core control part of the auxiliary flowmeter of the anesthesia machine. It is mainly used at a low flow of 0–15 L/min and can work independently.
  • Page 67 Auxiliary flowmeter monitoring board (bottom view) 2.2.6.2 High-Flow O2 Therapy Monitoring Board The high-flow O2 therapy monitoring board is the core control part of high-flow O2 therapy of the anesthesia machine. It is mainly used at a low flow of 0–60 L/min and can work independently.
  • Page 68 High-flow O2 therapy monitoring board (bottom view) 2.2.6.3 High-Flow Sensor Board The high-flow sensor board is mainly used to monitor the O2/air branch flow of the high-flow O2 therapy module and feed back the detected signals to the high-flow O2 therapy monitoring board through the I2C bus.
  • Page 69 2.2.6.4 Auxiliary Flowmeter Backlight Board The auxiliary flowmeter backlight board is mainly used to provide lighting for the auxiliary flowmeter. The auxiliary flowmeter backlight board is installed here. Installation position of the auxiliary flowmeter backlight board Auxiliary flowmeter backlight board (top view) Auxiliary flowmeter backlight board (bottom view) 2-41...
  • Page 70 2.2.6.5 Auxiliary O2/Air Keyboard The auxiliary O2/air keyboard is mainly used to turn on or off the auxiliary O2/air module. Auxiliary O2/air keyboard Installation position of the auxiliary O2/air keyboard Auxiliary O2/air keyboard 2-42...
  • Page 71 2.2.6.6 Segment Display The segment display is used to display the total O2/air flow and O2 concentration of the auxiliary O2/air module. Segment display Installation position of the segment display Segment display 2-43...

  • Page 72: Electronic Vaporizer System (A9)

    2.2.7 Electronic Vaporizer System (A9) 2.2.7.1 Electronic Vaporizer Base Interface Board The electronic vaporizer base interface board is used to connect the electronic vaporizer only for signal transfer. Two electronic vaporizer base interface boards are configured for each machine. Electronic vaporizer base interface board 2.2.7.2 Electronic Vaporizer The electronic vaporizer subsystem is located on the right side of the work surface, consisting of the electronic vaporizer, electronic vaporizer base, and filler.
  • Page 73 Motherboard (top view) Motherboard (bottom view) 2-45...
  • Page 74 2.2.8.2 AGSS Sensor Board The AGSS sensor board is used to test the AGSS waste gas flow, which refers to the total flow of the "drive gas + gas that escapes from the patient circuit + air that is pumped into the hospital connection pipeline under negative pressure".
  • Page 75 2.2.8.3 Power Indicator Board Power indicator board Installation position of the power indicator board Power indicator board 2-47...
  • Page 76 2.2.8.4 Three-Slot Module Rack Backplane The three-slot module rack backplane is a logical forwarding data board mainly used to power and communicate with the module rack. This board is configured with module rack software. Three-slot module rack backplane The backplane is installed on the rear. Installation position of the three-slot module rack backplane Three-slot module rack backplane 2-48...
  • Page 77 2.2.8.5 EFCS Outlet Pressure Sensor Board The EFCS outlet pressure sensor board is used to detect the pressure at the EFCS outlet. The EFCS outlet pressure sensor board is installed here. Installation position of the EFCS outlet pressure sensor board EFCS outlet pressure sensor board 2-49...
  • Page 78 2.2.8.6 Gas Inlet Pressure Sensor Board The gas inlet pressure sensor board is used to detect the pressure at the pipeline gas inlet. It has the same appearance as the EFCS outlet pressure sensor board but has a different measurement range.
  • Page 79 2.2.8.7 APL Lighting Board The APL lighting board is used to indicate the manual APL knob. The APL lighting board is installed here. Installation position of the APL lighting board APL lighting board 2.2.8.8 External I/O Interface Board The external I/O interface board provides external ports, including four USB ports, two network ports, and one DB9 port (for calibration and device interconnection).

  • Page 80: Pneumatic Part

    2.3 Pneumatic Part The A9/A8 anesthesia machine consists of seven subsystems: gas supply, flowmeter, vaporizer, breathing, auxiliary gas supply, AGSS, and negative pressure suction. The A9 pneumatic diagram and the list of related parts are shown below: 2-52...
  • Page 81 Description Description Filter 13.2 2/3 Switch-Over Valve Check Valve 13.3 Normally Opened Valve Pressure Switch 13.4 2/3 Switch-Over Valve Pressure Relief Valve 13.5 Normally Closed Valve Pressure Regulating Valve 13.6 Normally Closed Valve Cylinder Pressure Gauge 13.7 2/3 Switch-Over Valve Electronic Pressure Sensor of Cylinder 13.8 2/3 Switch-Over Valve...
  • Page 82 Float Flowmeter(0-60LPM) 14.16 Anesthetic mixing chamber Check Valve 14.17 Mixed gas outlet 5.10 Differential Pressure Gauge 15.1 Internal AG 5.11 Proportional Valve 15.2 2/3 Switch-Over Valve 5.12 Pilot Normally Closed Valve 15.3 2/3 Switch-Over Valve 5.13 Pilot 2/3 Switch-Over Valve 15.4 Self-sealing Sampling Tube 5.14...
  • Page 83 12.3 Check Valve 18.20 11kPa (112 cmH O) Pressure Relief Valve 12.4 Proportional Valve 18.21 Check Valve 12.5 Flow Sensor 18.22 Expiratory Valve 12.6 Filter 18.23 1kPa (10 cmH O) Pressure Relief Valve 12.7 2/3 Switch-Over Valve 18.24 Volume Exchanger (VE) 12.8 Check Valve 18.25...
  • Page 84 The A8 pneumatic diagram and the list of related parts are shown below: 2-56...
  • Page 85 Description Description Filter 12.1 Filter Check Valve 12.2 Normally-Closed Switch Valve Pressure Switch 12.3 Check Valve Pressure Relief Valve 12.4 Proportional Valve Pressure Regulating Valve 12.5 Flow Sensor Cylinder Pressure Gauge 12.6 Filter Electronic Pressure Sensor of Cylinder 12.7 2/3 Switch-Over Valve Pressure Regulating Valve of Cylinder 12.8 Check Valve...
  • Page 86 Float Flowmeter(0-60LPM) 18.7 Inspiration Flow Sensor Check Valve 18.8 Pressure Sensor 5.10 Differential Pressure Gauge 18.9 Inspiratory Port 5.11 Proportional Valve 18.10 Expiratory Port 5.12 Pilot Normally Closed Valve 18.11 Differential Pressure Gauge of Expiration 5.13 Pilot 2/3 Switch-Over Valve 18.12 2/3 Switch-Over Valve 5.14...

  • Page 87: Symbols

    2.3.1 Symbols Filter Regulator Pressure gauge Check valve c Gas supply connector Pressure relief valve Flowmeter Flow control valve Pressure switch Flow restrictor 2.3.2 Gas Supply Subsystem The gas supply subsystem is mainly used to provide fresh gas for the patient and drive gas for the anesthesia ventilator.
  • Page 88 Figure 2 Pneumatic diagram of the gas inlet assembly As shown in the above figure, the gas inlet assembly consists one or more of the following components based on different configurations: gas hose connector, filters (1.1, 1.10, 2.1, and 3.1), check valves (1.2, 1.11, 2.4, and 2.9), pressure relief valves (1.4, 2.3, and 3.3), regulators (1.5 and 2.5), pressures switch (1.3), and pressure sensors (1.12, 2.10, and 3.2).
  • Page 89 Air inlet EFCS and negative pressure suction outlet Air cylinder inlet Pressure test connector Figure 4 Structural diagram of the air inlet assembly O2 inlet Outlet Pressure test connector Backup O2 and cylinder inlet Figure 5 Structural diagram of the O2 inlet assembly 2-61...
  • Page 90 2.3.2.2 Cylinder Yoke Assembly The cylinder yoke assembly is used to connect a high-pressure cylinder to the anesthesia machine, so that the anesthesia machine can use O2, air, and N2O supplied by the high-pressure cylinder. The high-pressure cylinder is connected to the cylinder yoke by means of pin-indexed yoke connection, which is sealed by the end face of a nylon pad and tightened by using a pentagon knob.
  • Page 91 Copper tube Pressure reducer connector Electronic pressure sensor Check valve Figure 7 Structural diagram of the cylinder yoke assembly 2.3.2.3 ACGO Assembly The ACGO assembly outputs the gas flowing through the vaporizer manifold and the flushed O2 to the breathing circuit or directly to the independent ACGO outlet. The ACGO assembly also provides an AG module sampling connector.
  • Page 92 Patient circuit outlet Flush inlet Fresh gas inlet AG sampling inlet AG sampling outlet ACGO outlet Figure 9 Structural diagram of the ACGO assembly 2.3.2.4 O2 Flush Assembly The O2 flush assembly contains two connectors for connecting to the pressure-regulated output end of the O2 inlet assembly and the ACGO assembly.
  • Page 93 2.3.2.5 System Switch Assembly The system switch assembly controls fresh gas supply of the breathing system. In addition, it provides electrical signals of the system switch to realize synchronous on/off control on the pneumatic system and the circuit system of the anesthesia machine. The system switch outputs gas for the BFCS.

  • Page 94: Flowmeter Subsystem

    2.3.3 Flowmeter Subsystem The flowmeter subsystem is mainly used to control the flow of fresh gas and also provides backup flow control in case of power failure. It consists of the EFCS assembly and BFCS assembly. 2.3.3.1 EFCS Assembly The EFCS assembly is used for electronic regulation and monitoring feedback on the flows of the O2, air, and N2O branches.

  • Page 95: Vaporizer Subsystem

    The vaporizer subsystem is mainly used to provide the patient with anesthetic gas at certain concentration. Different vaporizer subsystems are configured for the A8 and A9 anesthesia machines. The vaporizer subsystem of the A8 anesthesia machine consists of a mechanical vaporizer and a mechanical vaporizer manifold assembly. The vaporizer subsystem of the A9 anesthesia machine consists of an electronic vaporizer and an electronic vaporizer manifold assembly.
  • Page 96 Figure 18 Pneumatic diagram of the mechanical vaporizer manifold assembly The mechanical vaporizer manifold assembly consists of the check valve assembly, connector assembly, locking plate assembly, vaporizer manifold, vaporizer pad, and inlet/outlet quick connectors. The structural diagram of the mechanical vaporizer manifold assembly is shown below.
  • Page 97 Figure 20 Pneumatic diagram of the electronic vaporizer The electronic vaporizer consists of the drive gas interfaces (14.2 and 14.3), mechanical pressure relief assembly (14.6), filling unit (14.1), main pneumatic block assembly, drug pool entrance safety valve (14.8), drug pool, liquid level monitoring units (ultrasonic low liquid level monitoring (14.10), capacitive continuous liquid level monitoring (14.9), and glass tube liquid level display), locking unit, drug pool exit safety valve (14.12), base assembly, and mixing chamber assembly (14.16).
  • Page 98 Drive gas inlet Drive gas outlet Fresh gas inlet Fresh gas outlet Figure 22 Interfaces of the electronic vaporizer 2.3.4.3 Electronic Vaporizer Manifold Assembly (for A9) The electronic vaporizer manifold assembly provides a mounting location for the electronic vaporizer, provides driving pressure for the drug pool of the electronic vaporizer, mixes the O2/air mixture at the input end with the anesthetic gas in the electronic vaporizer to form fresh gas, and delivers the fresh gas to the common gas outlet.
  • Page 99 Gas inlet Gas outlet Drive gas Electronic vaporizer Figure 23 Pneumatic diagram of the electronic vaporizer manifold assembly The electronic vaporizer manifold assembly consists of the electronic vaporizer manifold, pneumatically-controlled locks (13.15 and 13.17), pressure regulator (13.1), and control module. The structural diagram is shown below.

  • Page 100: Breathing Subsystem

    2.3.5 Breathing Subsystem The breathing subsystem is an inspiratory and expiratory channel through which the gas flows under breathing pressure between the fresh gas inlet, the patient connection port, and the exhaust valve/port. The breathing subsystem provides a closed loop for the anesthetic gas, making the expired gas from the patient enter the patient's breathing circuit again after the CO2 in the gas is absorbed, to control the patient's anesthesia depth.
  • Page 101 2.3.5.1 Patient Circuit Assembly The patient circuit assembly consists of the inspiratory flow sensor (18.7), expiratory flow sensor (18.13), inspiratory check valve (18.1), expiratory check valve (18.15), expiratory valve (18.22), auto/manual valve (18.25), APL valve (18.26), bag arm, and leak detection plug. The patient circuit assembly is assembled with the guiding post of the circuit adapter block through two mounting holes, is connected to the gas interface on the adapter block to realize pneumatic connection, and is stopped by the bypass assembly.
  • Page 102 100 cmH2O. The accuracy is ±(4% of the full-scale reading + 4% of the actual reading). The upper and lower housings and glass of the airway pressure gauge are designed by Mindray to fasten the core and meet the appearance requirements. The structural diagram of the airway pressure gauge assembly is shown below.
  • Page 103 Figure 29 Structural diagram of the auto/manual switch assembly 2.3.5.4 Auto/Manual Drive Valve Assembly The auto/manual drive valve assembly controls gas supply through a pilot three-way valve, as shown in the figure below. When the three-way valve is powered on, the pressure acts on the left end face of the piston, and the piston ejects against the spring force, to push the auto/manual valve cartridge in the patient circuit assembly to the auto state.
  • Page 104 2.3.5.5 APL Valve Assembly The APL valve assembly is an adjustable pressure limit valve for setting the maximum limited pressure during manual ventilation of the anesthesia machine. The valve has a mechanical structure. When adjusting the pressure, it changes the compression rate of the internal spring to change the force of the pressure actuating device and act on the sealing valve.
  • Page 105 Circuit adapter block assembly Bypass assembly Absorber canister assembly CO2 Locking assembly Figure 32 Structural diagram of the absorber canister and bypass assemblies 2.3.5.7 Volume Exchanger Assembly The volume exchanger assembly is used to isolate the breathing gas from the drive gas, similar to bellows.
  • Page 106 2.3.5.8 O2 Cell Calibration Valve Assembly During O2 cell calibration, the O2 cell calibration valve is turned on to supply air to the O2 cell for calibration. In the non-calibration state, the O2 cell calibration valve is turned off. Figure 34 Structural diagram of the O2 cell calibration valve assembly 2.3.5.9 Drive Gas Assembly The drive gas assembly drives the patient's breathing process.

  • Page 107: Auxiliary Gas Supply Subsystem

    The drive gas assembly consists of the pneumatic block, flow sensor (10.4), pressure switch (10.7), 110 cmH2O pressure relief valve (18.20), 4 cmH2O negative pressure valve (18.21), and check valve (18.19). It is connected to other components of the anesthesia machine through the inspiratory limb gas inlet, PEEP limb gas outlet, PEEP control gas outlet, drive gas outlet, and PEEP exhaust port.

  • Page 108: Agss Subsystem

    2.3.6.1 High-Flow O2 Supply Assembly The high-flow O2 supply assembly can provide patients with O2 and air at adjustable concentration. The input includes O2 and air obtained after pressure adjustment by the pipeline gas inlet assembly. The flows of the two gases are adjusted through independent proportional valves (5.11 and 5.16) and measured through independent differential pressure sensors (5.10 and 5.15).
  • Page 109 Figure 40 Pneumatic diagram of the passive AGSS 2.3.7.1 Gas Reservoir Assembly The gas reservoir is used to prevent the anesthetic gas from overflowing out of the AGSS during peak anesthetic gas scavenging of the anesthesia machine, and is used to receive and buffer the exhausted gas and eliminate the noise generated by the breathing gas.
  • Page 110 AGSS inlet gas reservoir AGSS airway AGSS pump box Figure 41 Structural diagram of the active AGSS gas reservoir assembly The passive AGSS gas reservoir assembly consists of three parts: AGSS inlet gas reservoir, AGSS pump box, and AGSS passive plug. The AGSS pump box is connected to the pneumatic block through a silicone tube.
  • Page 111 2.3.7.2 AGSS Pneumatic Block Assembly As a residual gas scavenging part of the anesthesia machine, the AGSS pneumatic block assembly is connected to the gas reservoir and the hospital's negative pressure suction system. The active AGSS pneumatic block assembly is used to turn on/off the negative pressure source, and adjust and monitor the pump flow.

  • Page 112: Negative Pressure Suction Subsystem

    The passive AGSS pneumatic block assembly consists of three parts: adapter block assembly, waste gas scavenging pipeline, and ACGO waste gas inlet. The adapter block assembly connects the gas reservoir to the atmospheric pipeline and integrates the ACGO waste gas inlet pipeline. The waste gas scavenging pipeline is connected to the atmospheric pipeline.
  • Page 113 The continuous negative pressure suction subsystems consist of the negative pressure control panel assembly, and pipeline negative pressure inlet assembly. The structural diagrams of the assemblies are shown below. Figure 46 Structural diagram of the pipeline negative pressure inlet assembly Figure 47 Structural diagram of the negative pressure control panel assembly External I/O interface board (top view) 2-85...
  • Page 114 External I/O interface board (bottom view) 2-86...

  • Page 115: Installation Guide

    Negative pressure source and negative pressure source connection hoses (if not purchased  with the anesthesia system) NOTE Vaporizers are required to be purchased from Mindray for the A9. The Mindray  electronic vaporizers need to be tested with the A9 during installation. 3.1.2 Tools Phillips screwdriver ...

  • Page 116: Unpacking

    Cut, remove, and discard the white shipping straps from the box. Pull the box top straight up off the box and place it on the floor near the machine. The box top will be used later as a ramp when rolling down the A8/A9 onto the floor. Top plate...
  • Page 117 Release the five quick snap hooks on the carton in turn and take out the carton. Cut the protection film around the A8/A9 with a pair of scissors. Take care not to scratch or otherwise damage the machine.
  • Page 118 Remove the protection foam at the rear of the base, cut the flexible packing tape at the front and rear of the main unit, and finally remove the display mounting plate protection foam block, front packing belt protection wood, and rear packing belt protection foam. Rear packing belt protection foam Display mounting...

  • Page 119: Installation

    10. Create a ramp by placing the top plate in front of the pallet and gently push the A8/A9 down the ramp. Pallet Top plate 3.2.2 Installation Check the accessories according to the packing list. Take the bag arm assembly out of the bottom drawer. Remove the bubbled wrap from the bag arm assembly and bag arm mounting base with a pair of scissors.
  • Page 120 Press the O2 sensor cover switch to open the O2 sensor cover. Rotate the O2 sensor clockwise to install it to the support. Insert the O2 sensor support to the breathing system. Insert the O2 sensor cable. Close the O2 sensor cover.
  • Page 121 When the sample gas of the AG module is compatible with the biological compatibility standard, the sample gas can be returned to the patient circuit. Depress the metal clip and then plug the exhaust tube to the sample gas return port. Sample gas return port 10.
  • Page 122 Passive AGSS  Connecting to the AG module Connecting to passive AGSS 11. When the ACGO circuit needs to scavenge the gas to the AGSS, use the adapter as shown below. Active AGSS  Connecting to the ACGO circuit...
  • Page 123 Passive AGSS  PN:115-026796-00 Connecting to the ACGO circuit Connecting to passive AGSS 12. When both the sample gas of the AG module and ACGO circuit need to scavenge the gas to the AGSS, use two adapters as shown below. Active AGSS ...
  • Page 124 13. Hang the checkout list and cleaning card on unit. 14. Mount the tank wrench on the rear. 15. Remove the protection foam between the arm and the instrument panel, cut the cable strap on the arm, and adjust the position of the display arm assembly to prepare for installing the display assembly.
  • Page 125 16. Open the display assembly packing box and remove the screw kit. Remove the foam from the left and right of the display to remove it. Remove the two screws with the Phillips screwdriver to remove the rear cable cover plate. Screw kit Rear cable cover plate 17.

  • Page 126: Tests After Installation

    Figure C Figure D Two M3×8 pan head cross HDMI cable restraining recessed screws plate 3.3 Tests After Installation Perform tests after installation. The details refer to 5 Testing. 3-12...

  • Page 127: Maintenance Period

    Check Replace 049-000142-00 trigger plate 23.47×2.95 O-ring, silicon Check Replace 082-003300-00 rubber A70, colorless Sealing ring for the bypass Check Replace 049-001491-00 absorber canister 14×2.65 O-ring, EPDM A70, Replace Replace 082-003225-00 white(A8) 4.7×1.8 O-ring, EPDM A70, Replace Replace 082-003252-00 white(A9)
  • Page 128 13.2×1.8 O-ring, EPDM Replace Replace 082-003216-00 rubber A70, white(A9) 78×2.5 O-ring, silicon rubber Replace Replace 082-003251-00 A50, colorless O-Ring 16X2 FKM A70 Check Replace 082-003254-00 White O-Ring 4.7x1.8 FKM A70 Check Replace 082-003266-00 White O-Ring 8.5X2 FKM A70 Check Replace 082-003253-00 White O-Ring 15.54X2.62 FKM...

  • Page 132: Maintenance Report

    Flow sensor (resistant to high-temperature disinfection) O2 cell holder assembly 4.5 Maintenance Report Perform tests after maintenance. The details refer to 5 Testing.

  • Page 133: Testing

    Testing NOTE A ventilation test can be performed only when the anesthesia system is powered on  (using AC mains instead of batteries). 5.1 Power-on Self-Test When the system is powered on, it performs a self-test to ensure that its alarm system (including the alarm LED indicators, speaker, and buzzer) and hardware (flowmeter board, VCM, VPM, power board, CPU board, etc.) are properly functioning.

  • Page 134: System Check

    5.2 System Check Three system check modes are available: power-on self-test, leak test, and vaporizer test (for A9). NOTE Both the leak test and vaporizer test are used to check for leakage in the backend  circuit of the flowmeter. The difference lies in whether the anesthesia machine is equipped with a vaporizer.

  • Page 135: Performing The System Check

    5.2.1 Performing the System Check Perform operations according to the instructions on the screen. The system check starts after clicking the Continue button. (If the machine is equipped with an electronic vaporizer, the vaporizer test automatically starts.) Verify successful completion of the Leak Test. Verify successful completion of the Electronic Vaporizer Test NOTE In standby mode, you can click...

  • Page 136: Gas Supply Tests

    5.3 Gas Supply Tests 5.3.1 O2 Supply Test NOTE Remove the O2 cylinder from the yoke before performing this test.  Open the Backup AIR/O2 door to let the machine enter the BFCS work mode. Fully open the O2 needle valve. Observe the float of the total flowmeter, which should be at the top of the flowmeter.

  • Page 137: Cylinder Supply Tests

    Reconnect the AIR pipeline supply. 5.4 Cylinder Supply Tests 5.4.1 N2O Cylinder Supply Test Remove the N2O supply hose from the gas inlet assembly. Verify that O2 supply is available. Mount the backup cylinder full of N2O on the backup cylinder yoke. Observe the reading on the N2O high pressure gauge for the entire system.

  • Page 138: Air Cylinder Supply Test

    5.4.3 AIR Cylinder Supply Test Remove the AIR supply hose from the gas inlet assembly. Mount the backup cylinder full of AIR on the backup cylinder yoke. Observe the reading on the AIR high pressure gauge for the entire system. Verify that the difference between the pressure displayed on the AIR high pressure gauge and the pressure displayed on the cylinder pressure gauge does not exceed 1.25 MPa(181 PSI).

  • Page 139: Bfcs Function Tests

    (Balance gas setting: Adjust the O2 flow knob to set the flow to 15 L/min. 14.25–15.75 L/min none) Adjust the air flow knob to set the flow to 15 L/min. 14.25–15.75 L/min Accuracy of the air Adjust the air flow knob to set the flow to 10 L/min. 9.50–10.50 L/min electronic flowmeter Adjust the air flow knob to set the flow to 3 L/min.

  • Page 140: Accuracy Confirmation Test

    5.6.3 Accuracy Confirmation Test Connect the O2 supply. Adjust the auto/manual switch to Manual and APL valve to SP. Connect the Y-piece in the breathing circuit to the leak test port, and the other two ends to the expiratory and inspiratory ports of the circuit. Connect a manual bag to the bag arm port. Open the Backup AIR/O2 door and turn on the backup flowmeter.

  • Page 141: Vaporizer Self-Locking Test

    Verify that all valves on this screen are turned off and Drive Gas Pressure is 0±5 kPa. Set Drive Gas Valve Status to On and verify that the displayed value of Drive Gas Pressure is 150±5 kPa. Open the cover of the vaporizer and verify that Drive Gas Pressure decreases to 0±5 kPa(0±0.7psi).

  • Page 142: Vaporizer Accuracy Test

    Turn off the vaporizer in position 1. 5.7.4 Vaporizer Accuracy Test Connect the sampling tee of the Calibrated Gas Analyzer to the ACGO port. Use a breathing hose to connect the output of the sampling tee to the scavenger. Verify that the scavenging system is connected to the wall and the float is between the minimum and maximum scales.

  • Page 143: Mechanical Vaporizer Test (A8 Only)

    12.0 10.2–13.8 18.0 15.3–20.7 5.8 Mechanical Vaporizer Test (A8 only) 5.8.1 Vaporizer Interlock Test Connect two vaporizers to the vaporizer manifold and lock them in proper places. Rotate either of the vaporizer dial to 3%. Verify that the other vaporizer dial cannot be rotated.

  • Page 144: Vaporizer Leak Test

    Verify that the scavenging system is connected to the wall and the float is between the minimum and maximum scales. Install a vaporizer and add anesthetic agent (if necessary). NOTE Ensure that the anesthetic agent does not exceed the highest liquid level indicator ...

  • Page 145: Other Functional Tests

    Mount and lock the vaporizer onto the vaporizer mount. (The vaporizer must be set to at least 1%.) Set the fresh gas flow to 0.2 L/min. Adjust the APL valve to 70 cmH2O. Push the O2 flush button until the airway pressure gauge value increases to about 30 cmH2O.

  • Page 146: O2 Flush Test

    Release the check valve at the high-pressure O2 inlet and verify that there is no gas output at the high-pressure O2 inlet. 5.9.3 O2 Flush Test Set the machine to ACGO mode. Connect a flow meter to the ACGO port and configure the flow meter to STPD. Verify that the O2 flush flow is between 35 to 50 L/min when pressing the O2 flush button.

  • Page 147: Circuit Function Tests

    Check the anesthetic agent type and concentration monitored by the internal AG module. Verify that the anesthetic agent type is consistent with the vaporizer type and the concentration is 0.8%–1.2%. 5.10 Circuit Function Tests 5.10.1 O2 Concentration and Tidal Volume Test NOTE When performing this test in the EFCS state, air must be set as the balance gas and ...

  • Page 148: Patient Circuit Heating Test

    Push the O2 flush button to inflate the manual bag. Verify that the value displayed on the PAW gauge ranges from 20 to 40 cmH2O. Pull the APL valve and observe the reading on the airway pressure gauge to verify that the pressure immediately decreases to 0±2 cmH2O.

  • Page 149: Negative Pressure Suction Tests

    If the flow does not meet the requirement, verify the status of the hospital's disposal system or adjust the position of the float to be between the MIN and MAX lines by turning its flow regulating knob (counter-clockwise to increase the flow and clockwise to decrease the flow). 5.12 Negative Pressure Suction Tests Check that the suction tubes between the overfill protection cup, filter, and liquid collection bottle are correctly connected.

  • Page 150: O2 Supply Failure And Balance Gas Branch Flow Not Achieved Alarm Tests5-18

    Remove the bypass assembly Remove the O2 cell Pull out the Breathing System Verify the alarm message Breathing System Not Mounted appears. Remove the Volume Exchanger Verify the alarm message Volume Exchanger Not Mounted appears. Re-install the Volume exchanger and verify that the Volume Exchanger Not Mounted message disappears.

  • Page 151: Ventilator-Related Alarm Tests

    5.13.4 Ventilator-Related Alarm Tests 5.13.4.1 Setup Ensure that the gas pressure for O2, N2O, and air is within the specified range. Perform the power-on tests according to the instructions on the screen. Ensure that the tests succeed. Attach a breathing circuit and a manual bag. NOTE For testing purposes, always use a reusable breathing circuit.
  • Page 152 Verify that the following FiO2 high alarm signals activate: The FiO2 Too High message appears on the screen.  An alarm tone sounds.  Set the FiO2 high alarm limit to the maximum value. Verify that the alarm signals cease. 5.13.4.4 Paw Alarm Test Set the peak low alarm limit to the lowest value.

  • Page 153: System Ventilation Performance Tests

    Remove the test lung and wait at least 30s and verify that an apnea alarm and Tube disconnected alarm occurs. Reconnect the test lung and verify that the apnea alarm disappears. 5.13.4.7 Continuous Airway Pressure Alarm Test Connect a manual bag to the manual bag port. Set the O2 flow to the minimum value.

  • Page 154: Vcv Pediatric Ventilation Mode Test

    Rate Tpause PEEP Plimit Start ventilation. Verify that the pressure waveform, respiratory volume, mean or plateau pressure, respiratory rate, and minute ventilation appear on the screen. Verify that the tidal volume displayed on the anesthesia machine is within 7% (±42 mL) of the value displayed on the ventilation tester within approximately the first 1 minute after ventilation starts.

  • Page 155: Pcv Adult Ventilation Mode Test

    Verify that the pressure waveform, respiratory volume, mean or plateau pressure, respiratory rate, and minute ventilation appear on the screen. Verify that the tidal volume displayed on the anesthesia machine is within ±15 mL of the value displayed on the ventilation tester within approximately the first 1 minute after ventilation starts.

  • Page 156: Constant Flow Test (Checking The Flow Sensor Accuracy)

    The following table lists the normal range of the zero point of some pressure and flow sensors. Sensor Normal Range of Zero Point (AD Counts) 1068-1765 PAW sensor 1068-1765 PEEP sensor 1068-1765 Esophageal pressure sensor (Canada Only) 289-632 Inspiratory flow sensor 289-632 Expiratory flow sensor 0-200...

  • Page 157: Constant Flow Test (Checking The Pressure Sensor Accuracy)

    Select Setup > Service > Diagnostic Tests> Valves to access the flow test screen. Set Safety Valve to On. Set PEEP Valve Pressure to 50 cmH2O, and Auto/Manual Valve to Auto. Set Insp Valve Flow to the following values: 3L/min, 10L/min, 20L/min, 30L/min, and 60L/min.
  • Page 158 Connected to the syringe Connected to the pressure test equipment Set the calibration device as described below. To set the VT-Plus, perform the following operations: Pressure settings: Press the PRESSURE button on the front calibration control panel. Select Range and then set it to Low Press. 5-26...

  • Page 159: Electrical Tests

    Select Setup > Service > Data Monitors > VCM and find the actual airway pressure values. Adjust the pressure by using the syringe so that the pressure test equipment displays (5±1) cmH2O, (20±1) cmH2O, (50±1) cmH2O, (70±2) cmH2O, and (90±2) cmH2O in sequence. Verify that the deviation between the measured value of the PAW sensor displayed on the machine and that of the pressure test equipment does not exceed 1 cmH2O or 2% of the measured value of the calibration device, whichever is greater.

  • Page 160: Electrical Safety Inspection Test

    Press the switch again (for the second time) and verify that the work light is at high brightness. Press the switch again (for the third time) and verify that the work light is off. 5.18.3 Electrical Safety Inspection Test CAUTION The electrical safety inspection should be performed once a year.
  • Page 161 If the BIS and NMT modules are configured, perform the following patient auxiliary current tests between each electrode and the others by turns: Normal polarity;  Reverse polarity;  Normal polarity with open neutral;  Reverse polarity with open neutral; ...
  • Page 162 In routine maintenance, all the test items included in the electrical safety inspection form shall be performed. The following table specifies test items to be performed after the equipment is repaired with the main unit disassembled. When none of the power board, transformer, and patient Test items: 1 and 2 circuit board is repaired or replaced When the power board or transformer is repaired or replaced...

  • Page 163: System Calibration

    System Calibration 6.1 Overview This section elaborates how to test and calibrate the A8/A9 anesthesia machine. Calibration refers to mechanical and electrical adjustments using test devices. NOTE Functional tests must be performed after calibration to verify the calibration  result.

  • Page 164: Cautions

    6.2.2 Cautions CAUTION Refer to the maintenance period in Chapter 4 Device Maintenance when  conducting periodic maintenance. If the pipeline gas supply is in use and the main switch of the system is set to the  ON position, ensure that the standby gas cylinder valve is not opened. Otherwise, the cylinder gas supply could be depleted, resulting in an insufficient reserve in the case of a pipeline gas supply failure.

  • Page 165: System Calibration

    6.3 System Calibration NOTE The drive gas of the anesthesia machine and the drive gas set in the calibration  device must be consistent with the actual drive gas configured for the machine. If a test item concerning measurement accuracy fails in the system test, perform ...
  • Page 166 Calibration Item Function Description Calibration Occasion Zero offset exists in the Flowmeter zeroing Calibrates zero offset in flowmeter. (user) the flowmeter. The monitored value deviates from the total flow setting by 100 ml or 5%, whichever is larger; or the monitored value deviates from the limb flow setting by 50 ml or 5%, whichever is larger.

  • Page 167: Flow Calibration (User)

    6.3.1 Flow Calibration (User) 6.3.1.1 Principles NOTE A new flow sensor must be calibrated.  The measurement accuracy of flow sensors may be affected by the operating  environment, especially when they have been used for a long time, and the tidal volume control may also experience a great deviation correspondingly.
  • Page 168 6.3.1.2 Calibration Procedure Perform the following steps to calibrate flow sensors. Enter the standby mode. > Calibrate to access the screen shown below. Select Ensure that the drive gas pressure is sufficient. Remove the water collection cup. Plug the Y-piece into the leak test port and seal the breathing system. Select Begin to start calibration.
  • Page 169 The screen shown below is displayed if the ongoing calibration is aborted. Select Retry to do the calibration again, or select Done to exit the calibration screen. The screen shown below is displayed if the calibration fails. Select Retry to do the calibration again, or select Done to exit the calibration screen.
  • Page 170 The screen shown below is displayed upon successful calibration. Select Done to exit the calibration screen. NOTE If measurement deviations are not corrected after multiple flow sensor  calibrations, it is recommended that a flow sensor in the circuit be replaced and then a calibration be performed for the new flow sensor.
  • Page 171 Failure Possible Cause Recommended Action Description Check whether the gas supply is sufficient for the whole calibration process. (The pipeline gas pressure is not less than 345 kPa (50 psi).) Check whether the calibration device works properly. Check whether the fresh gas is turned off. Check whether the inspiratory valve can be closed tightly.
  • Page 172 Failure Possible Cause Recommended Action Description each valve current. If the collected AD value of the expiratory flow sensor at the time point with the measured value of the calibration device close to (smaller than) 180 L/min is greater than 4050, the measurement range of the expiratory flow sensor is abnormal.
  • Page 173 Failure Possible Cause Recommended Action Description increase the current of the inspiratory valve (Insp Valve Current), and observe the measured value of the calibration device under each valve current. If the collected AD value of the expiratory flow sensor at the time point with the measured value of the calibration device close to (smaller than) 180 L/min is greater than 4050, the measurement range of...

  • Page 174: O2 Sensor Calibration (User)

    6.3.2 O2 Sensor Calibration (User) 6.3.2.1 Principles NOTE The O2 sensor needs to be calibrated when a great deviation occurs in the O2  monitored value or the O2 sensor or VCM is replaced. Observe whether the O2 sensor displays values on the measure screen before ...
  • Page 175 2.The calibration screen shown below is displayed after you select Begin. During calibration, you can select Cancel to abort the calibration. 3.The screen shown below is displayed if the ongoing calibration is aborted. Select Retry to do the calibration again, or select Done to exit the calibration screen. 4.The screen shown below is displayed if the calibration fails.
  • Page 176 5.The screen shown below is displayed upon successful calibration (in standby mode). Select Done to exit the calibration screen. 6-14...
  • Page 177 Calibration at 21% and 100% O2 NOTE The calibration at 100% O2 and that at 21% O2 are performed together. The  first 50% progress indicates the calibration at 21% O2, and the last 50% progress indicates the calibration at 100% O2. Perform the following steps to calibrate the O2 sensor at 21% O2 and 100% O2.
  • Page 178 4.The screen shown below is displayed if the ongoing calibration is aborted. Select Retry to do the calibration again, or select Done to exit the calibration screen. 5.The screen shown below is displayed if the calibration fails. There are three cases: (1) the calibration at 21% and 100% O2 fails;...
  • Page 179 (3) the calibration at 21% O2 succeeds and that at 100% O2 fails. The fonts in red indicate the fault code. Select Retry to do the calibration again, or select Done to exit the calibration screen. 6-17...
  • Page 180 6.The screen shown below is displayed if the calibration at 21% and 100% O2 succeeds. Select Done to exit the calibration screen. 6-18...
  • Page 181 6.3.2.3 Common Failures and Recommended Actions Error Code Description Recommended Action Reinstall the O2 cell. Check whether the O2 sensor is in the 21% O2 environment. The calibration value at Display 1 Check whether the output voltage of the O2 sensor is 21% O2 is too small.

  • Page 182: Flowmeter Zeroing (User)

    Replace or connect a gas supply. The air supply pressure Display 35 If the gas supply is normal, check the gas supply is low. pressure switch. Check whether the alarm "O2 Sensor Disconnected" is displayed. If yes, check whether the O2 sensor is installed in the O2 sensor holder.
  • Page 183 6.3.3.2 Zeroing Procedure Perform the following steps to zero the EFCS. 1.Select Setup > System > Calibrate > Zero Flow Meters to access the screen shown below. Select Begin to start zeroing. 2.The zeroing screen shown below is displayed after you select Begin. During zeroing, you can select Cancel to abort the zeroing.
  • Page 184 3.The screen shown below is displayed if the ongoing zeroing is aborted. Select Retry to do the zeroing again, or select Done to exit the zeroing screen. 4.The screen shown below is displayed if the zeroing fails. Select Retry to do the zeroing again, or select Done to exit the zeroing screen.

  • Page 185: High-Flow O2 Supply Zeroing (User)

    5.The screen shown below is displayed upon successful zeroing. Select Done to exit the zeroing screen. NOTE Other faults may exist in the EFCS if the zeroing fails. You must locate and  rectify the faults. 6.3.3.3 Zeroing Failure Troubleshooting If the zeroing fails, perform the following steps to locate and rectify the fault.
  • Page 186 Enter the standby mode and turn HFNC on. Select Setup > System > Calibrate > Zero HFNC to access the screen shown below. Select Begin to start zeroing. During zeroing, you can select Cancel to abort the zeroing. The screen shown below is displayed if the ongoing zeroing is aborted. Select Retry to do the zeroing again, or select Done to exit the zeroing screen.
  • Page 187 The screen shown below is displayed if the zeroing fails. Select Retry to do the zeroing again, or select Done to exit the zeroing screen. 6-25...
  • Page 188 The screen shown below is displayed upon successful zeroing. Select Done to exit the zeroing screen. 6.3.4.3 Zeroing Failure Troubleshooting If the zeroing fails, perform the following steps to locate and rectify the fault. Disconnect the gas supplies, exhaust the gas inside the machine, and perform zeroing again. If the zeroing is successful, it is concluded that the previous zeroing failure is caused by a mechanical failure in the pilot valve or faults in the proportional valves.

  • Page 189: Pressure Calibration (Service)

    6.3.5 Pressure Calibration (Service) 6.3.5.1 Principles In pressure calibration (service), the anesthesia machine calibration device (for example, VT900, VT650, TSI Certifier) specified by the manufacturer needs to be used to calibrate the PEEP valve, Paw sensor, and PEEP pressure sensor. The calibration principles are as follows: The anesthesia machine calibration device can communicate with the VCM, which controls the tight closing of the inspiratory valve.
  • Page 190 6.3.5.3 Calibration Procedure Automatic Calibration Perform the following steps to calibrate the pressure sensor and PEEP proportional valve. Ensure that the anesthesia machine is in standby mode. Select Setup > Service > Calibrate > Pressure Sensor and select Automatic Calibrate to access the screen shown below.
  • Page 191 1) Zero Remove the two protection caps from the LOW PRESSURE (–) and (+) ports. Select Low  Pressure > Zero > OK. The pressure displayed is 0.00 cmH2O. Note 1: Zero the pressure of the calibration device before each pressure calibration. ...
  • Page 192 Connect the last connector of the three-way silicone tube to the LOW PRESSURE (+GAS OR FLUID) port of VT Plus or the LOW PRESSURE (+) port of VT900. Figure 3.1 Three ports of the pressure calibration test fixture 6-30...
  • Page 193 Calibration pipeline connection (with auxiliary pressure,Canada only): Mount the pressure  calibration test fixture to the circuit adapter block in place. Use a four-way silicone tube to connect the three ports of the pressure calibration test fixture (as shown in Figure 3.2). Connect the last connector of the four-way silicone tube to the LOW PRESSURE (+GAS OR FLUID) port of VT Plus or the LOW PRESSURE (+) port of VT900.
  • Page 194 The screen shown below is displayed if the ongoing calibration is aborted. Select Retry to do the calibration again, or select Done to exit the calibration screen. The screen shown below is displayed upon successful calibration. The screen shown below is displayed if the calibration fails. Select Retry to do the calibration again, or select Done to exit the calibration screen.
  • Page 195 The screen shown below is displayed upon successful calibration. Select Done to exit the calibration screen. 10. Reset the machine after pressure calibration is completed. Note: Set the auto/manual switch to Manual before you install the patient circuit. 6-33...
  • Page 196 Manual Calibration NOTE The accuracy error of the pressure gauge for pressure calibration is not greater  than ±0.5 cmH2O or ±2% of the reading value (whichever is larger). Perform the following steps to manually calibrate the pressure sensor and PEEP proportional valve.
  • Page 197 Select Cancel. The screen shown below is displayed. The screen shown below is displayed after the first step of manual calibration is completed. The system calibrates 16 calibration points one by one. All 16 points are on the rising curve. You can select to recalibrate any calibration point during calibration.
  • Page 198 The screen shown below is displayed upon successful calibration. 6-36...
  • Page 199 The screen shown below is displayed if the calibration fails. 6.3.5.4 Common Failures and Recommended Actions Failure Possible Cause Recommended Action Description Restart the anesthesia machine and/or calibration device. An error occurs in the communication Check the communication Display 1 with the calibration device.
  • Page 200 Failure Possible Cause Recommended Action Description Replace the PEEP valve. Use the valve diagnosis tool for diagnosis. (1) Open the PEEP valve based on 500 mA. The pressure measured by the calibration device is greater than or equal to 100 cmH2O. (2) Close the PEEP valve and The pressure cannot be controlled increase the opening of the...

  • Page 201: Expiratory Valve Calibration (Service)

    Failure Possible Cause Recommended Action Description Perform the calibration again. Replace the VCM. Display C The calibration data of the esophageal Check the pipeline connection pressure sensor does not conform to and the gas tightness. monotonicity (the AD value of the Check whether the gas supply former calibration point is greater than pressure ranges from 280 kPa...
  • Page 202 6.3.6.2 Calibration Procedure Perform the following steps to calibrate the expiratory valve. Enter the standby mode. Select Setup > Service > Calibrate > Expiratory Valve to access the screen shown below. Select Begin to start calibration. During calibration, you can select Cancel to abort the calibration.
  • Page 203 The screen shown below is displayed if the ongoing calibration is aborted. Select Retry to do the calibration again, or select Done to exit the calibration screen. The screen shown below is displayed if the calibration fails. Select Retry to do the calibration again, or select Done to exit the calibration screen.
  • Page 204 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 Possible Cause Recommended Action Description Display E A zero point error occurs in the PEEP Calibrate the sensor. sensor.

  • Page 205: Pressure And Flow Zeroing (Service)

    Failure Possible Cause Recommended Action Description Display 39 The system fails to write data into Perform the calibration again. EEPROM. Replace the VCM. 6.3.7 Pressure and Flow Zeroing (Service) 6.3.7.1 Principles The anesthesia machine automatically performs pressure and flow zeroing at regular intervals during operation.
  • Page 206 6.3.7.2 Zeroing Procedure Perform the following steps to zero pressure and flow sensors. Select Setup > Service > Calibrate > Zero Sensors to access the screen shown below. Select Begin to access the screen shown below. During zeroing, you can select Cancel to abort the zeroing.
  • Page 207 The screen shown below is displayed if the ongoing zeroing is aborted. Select Retry to do the zeroing again, or select Done to exit the zeroing screen. The screen shown below is displayed if the zeroing fails. Select Retry to do the zeroing again, or select Done to exit the zeroing screen.

  • Page 208: Total Flow Sensor Calibration (Service)

    The screen shown below is displayed upon successful zeroing. Select Done to exit the zeroing screen. NOTE Other faults may exist in the machine if the zeroing fails. You must locate and  rectify the faults. 6.3.7.3 Zeroing Failure Troubleshooting If the zeroing fails, perform the following steps to locate and rectify the fault.
  • Page 209 The calibration principles are as follows: When the EFCS opens the proportional valve in the N2O limb with a fixed flow for a period of time, read the N2O measured value by the O2 flow sensor in the total limb. After averaging for a certain period of time, this average value and the N2O measured value by the flow sensor in the N2O limb form a data point in the calibration table and so on.
  • Page 210 Select Begin to access the screen shown below. NOTE The real-time fresh gas flow is displayed on the Calibrate Total Flow Sensor  screen. Normally, only N2O and total flow values are greater than 0, and N2O and total flow values ascend with the increase of calibration progress. Air and O2 values should be 0 or small all the time.
  • Page 211 The screen shown below is displayed if the ongoing calibration is aborted. Select Retry to do the calibration again, or select Done to exit the calibration screen. The screen shown below is displayed upon successful calibration. The screen shown below is displayed if the calibration fails. Select Retry to do the calibration again, or select Done to exit the calibration screen.
  • Page 212 The screen shown below is displayed upon successful calibration. Select Done to exit the calibration screen. 6.3.8.4 Common Failures and Recommended Actions Failure Description Possible Cause Recommended Action After Begin is selected, The machine is in Set the machine to the EFCS state. calibration failure is the BFCS state.

  • Page 213: Internal Ag Calibration (User)

    6.3.9 Internal AG Calibration (User) Connect the internal AG module to standard gases (Gas concentration should meet the following requirements: AA≥1.5%,CO2≥1.5% ,N2O≥40%,O2≥40%,of which AA represents an anesthetic agent. a/c≤0.01(a is the gas absolute concentration accuracy; c is the gas concentration), as shown in the figure below. Pressure reducing Three-way...

  • Page 214: External Ag Calibration (User)

    Preheat the module for 10 minutes. In standby mode, select Setup > System, enter the password, press ENTER, click Calibrate, and select Internal AG Module to access the built-in AG module calibration screen. Turn on the gas cylinder switch and regulate the flow valve. Read the concentration of the anesthesia gas DES on the calibration screen, which should be (±0.2)%.

  • Page 215: Nmt Sensor Check (User) (Canada Only)

    Enter the standby mode. Select Setup > System > Calibrate > Check NMT Sensor to access the screen shown below. Place the NMT sensor on a horizontal table with Mindray logo facing up according to the instructions. Click Begin to start the check.
  • Page 216 Place the NMT sensor on a horizontal table with Mindray logo facing down. Keep the sensor from moving. Click Next to continue with the check. Press the NMT sensor on a vertical wall with the sensor cable perpendicular to the floor. Keep the sensor from moving.
  • Page 217 Press the NMT sensor on a vertical wall with the sensor cable parallel to the floor. Keep the sensor from moving. Click Next to continue with the check. The screen shown below is displayed after the NMT sensor check is completed. The screen shown below is displayed if the NMT sensor check fails.

  • Page 218: Vaporizer Injector Calibration (Service) (A9 Only)

    NOTE Perform the vaporizer injector calibration when the output concentration of  vaporizer exceeds the accuracy specification. A Mindray AG module is required for this calibration.  The external AG must be calibrated with standard gas before doing vaporizer ...
  • Page 219 Select Setup > Service > Calibrate > Vaporizer Injector to access the screen shown below. Select vaporizer 2 (for example, Iso vaporizer). (Note: The calibration steps of vaporizer 1 are the same as those of vaporizer 2.) Select Begin to start calibration. During calibration, you can select Cancel to abort the calibration.
  • Page 220 The screen shown below is displayed if the ongoing calibration is aborted. Select Retry to do the calibration again, or select Done to exit the calibration screen. The screen shown below is displayed if the calibration fails. Select Retry to do the calibration again, or select Done to exit the calibration screen.
  • Page 221 The screen shown below is displayed upon successful calibration. Select Done to exit the calibration screen. The vaporizer should be checked by a calibrated gas tester after vaporizer injector calibration. 6.3.12.3 Common Failures and Recommended Actions Failure Possible Cause Recommended Action Description Check whether the gas supply is connected and is sufficient...
  • Page 222 Failure Possible Cause Recommended Action Description psi)). Check whether the electronic flowmeter works properly. The temperature does not meet the Replace the electronic 00000008 requirement. vaporizer. 00000010 The AG module is not ready. Check whether the AG module is connected and works in full accuracy mode.
  • Page 223 Failure Possible Cause Recommended Action Description sampling point. Replace the internal AG module. Replace the electronic vaporizer. 00000040 The system exits the standby state. During calibration, the system exits the standby state. 00000080 The linearity does not meet the Check whether the gas supply requirement.

  • Page 224: Tests After Calibration

    Failure Possible Cause Recommended Action Description properly and whether leakage occurs. Check whether leakage occurs in the internal pipeline of the machine so that the fresh gas cannot flow through the sampling point. Replace the AG module. 6.4 Tests After Calibration For test items after flow and pressure calibration, see 5.2 System Check and 5.14 System Ventilation Performance Tests.

  • Page 225: Troubleshooting

    Troubleshooting 7.1 Precautions Before disassembling the machine for internal testing and maintenance, disconnect the power supply and all gas supplies, and shut down the anesthesia machine. Before connecting or disconnecting cables or probes inside the machine after disassembly, turn off the system power supply to prevent safety risks and damage to the machine. 7.2 Power-On Troubleshooting 7.2.1 Power-On and Display Failures Failure...

  • Page 226: Auxiliary Outlet Failures

    Failure Cause Confirmation Confirmation Result Solution Description machine is (refer to 3.2.2). powered on, the main screen is on but displays no content. The screen The problem is solved. of the (1) Replace the DC-DC power anesthesia board (refer to 11.1.11). machine is Reconnect the LCD (2) If the problem persists, replace...
  • Page 227 Whether the sample gas return port is connected or sealed.  b) Check whether the components are installed in place: Whether the gas module watertrap is installed in place;  Whether the absorber canister is installed in place;  Whether the bottom sealing cover of the absorber canister is installed in place; ...

  • Page 228: Leak Test Failures In Manual Mode

    Check whether the check valve cover has cracks. If yes, replace the valve cover (refer to 11.5.2). Remove the absorber canister, fix the locking handle in the locked position, and perform the leak test. If the test succeeds: Replace the bypass (refer to 11.5.1). ...

  • Page 229: Technical Alarms

    If yes, replace the bag arm (refer to 11.5.1). If not, replace the sealing ring of the bag arm (refer to 11.5.1). If the problem persists, replace the APL valve (refer to 11.5.1). If the problem persists, replace the circuit (refer to 11.5.1). 7.3 Technical Alarms A technical alarm, as apposed to a physiological parameter alarm, is an alarm condition that exists no matter whether a patient is connected to the machine.
  • Page 230 Message Priority Cause Solution upon power-on 8. Leak of the check valve on the balance gas limb 9. Air 3-way valve self-test error 10. N2O 3-way valve self-test error 11. O2 switch valve self-test error 1. Power on the machine again for a self-test.
  • Page 231 Message Priority Cause Solution 3. If the problem persists, re-plug the VCM (refer to 8.6.2), and reconnect the cable between the backplane and display. 4. If the problem persists, replace the monitoring and controlling assembly (refer to 11.1.11). 1. Power on the machine again for 1.
  • Page 232 Message Priority Cause Solution 1. Power on the machine again for a self-test. 2. If the power board has a voltage error alarm, clear this alarm (refer to 7.3.3). 3. Select Setup > Service > Data Monitors > PEEP Valve to run a PEEP valve test.
  • Page 233 A/D channel table. Error/Power Board voltage is in error. For A8, it is normal if 24 VA is 0. Voltage: Failed For A9, it is normal if 18 VA is 0. 2. Open the service door (refer to...
  • Page 234 Setup > Service > Data connected. connected. Monitors > Power System and check whether the AC-DC output voltage is normal (A8--18VA: 17.4-18.6, A9---ACDC: 21.4-25). If the AC-DC output voltage is abnormal, replace the AC-DC power board (refer to 11.1.11). 4. If the problem persists, replace the DC-DC power board (refer to 11.1.11).

  • Page 235: Cpu Board Runtime Alarms

    Message Priority Cause Solution 1. Power on the machine again for a self-test. An error occurs during the 2. Exit the standby state, check the Internal AG Error selftest of the internal AG alarm error code of the AG module. module, and clear the alarm based on the error code (refer to 7.3.11).

  • Page 236: Power Board Runtime Alarms

    Message Priority Cause Solution the panel of the instrument and the backplane (backplane socket position: J6 socket on the left). 3. If the problem persists, replace the status screen control board (refer to 11.1.5). 1. Restart the auxiliary O2/air module. 2.
  • Page 237 A/D channel fall within the range specified in the A/D channel table. For A8, it is normal if 24 VA is 0. For A9, it is normal if 18 VA is 0. If the auxiliary O2/air module or HFNC Power Supply 3.3 V, 5 V, 12 V...
  • Page 238 Battery in Use AC power fails. Service > Data Monitors > Power System and check whether the AC-DC output voltage is normal (A8--18VA: 17.4-18.6, A9---ACDC: 21.4-25). If the AC-DC output voltage is abnormal, replace the AC-DC power board (refer to 11.1.11).

  • Page 239: Electronic Flowmeter And Bfcs Runtime Alarms

    Message Priority Cause Solution time and then restart it. If the problem persists after the machine runs for a period of time (at least 30 minutes), replace the DC-DC power board (refer to 11.1.11). 1. Restart the machine. 2. If the problem persists, select Setup > Service >...
  • Page 240 Message Priority Cause Solution 1. Check whether O2 is supplied normally. The gas supply pressure on the O2 pipeline should be within the range of 280- 600kPa (40-87PSI), and the cylinder pressure should be The O2 flow exceeds within the range of 6.9-20.0MPa O2 Branch Flow the target flow by 10% (1000-2900PSI).
  • Page 241 Message Priority Cause Solution Communication is lost 3. If the problem persists, replace the with the CPU board for flow sensor (refer to 11.3.1). 10s. Flowmeter Comm Stop shall be detected by both the main board CPU and flowmeter CPU. 1.
  • Page 242 Message Priority Cause Solution 2. If the gas supply on the pipeline is sufficient, but "Air Supply Failure" is still reported, replace the air supply inlet assembly (refer to 11.1.8). 3. If the cylinder pressure gauge indicates that the cylinder pressure is sufficient, but the status screen indicates that the pressure is lower than the normal range, replace the air...
  • Page 243 Failure Cause Solution Code (refer to 11.1.4). Restart the machine. If the problem Balance gas limb 0x00000040 EFCS assembly persists, replace the EFCS assembly leakage (refer to 11.1.4). Zero point reading Restart the machine. If the problem 0x00000080 error upon EFCS assembly persists, replace the EFCS control board power-on...

  • Page 244: Vcm Runtime Alarms

    Failure Cause Solution Code 3. If the problem persists, replace the EFCS control board (refer to 11.3.1). 1. Perform steps 1, 3, 6, 7, and 8 in Electromagnet section 4.6.5.2 to identify the faulty Electromagnet 2 electromagnet, and then replace the 0x00000020 power-off failure EFCS control...
  • Page 245 Message Priority Cause Solution (refer to 6.3.5). 6. If the calibration fails, replace the sensor adapter board (refer to 11.1.16). 7. If the problem persists, replace the monitoring and controlling assembly (refer to 11.1.11). 1. Restart the anesthesia machine. 2. If the power board has a voltage error alarm, clear this alarm (refer to 7.3.3).
  • Page 246 Message Priority Cause Solution 3. If the sensor displays a negative value in step 2, remove the auxiliary output assembly (refer to 8.1.2), remove the VE box (refer to 8.29), and check whether the silicone tube falls off from the three-way valve assembly and circuit adapter board.
  • Page 247 Message Priority Cause Solution VCM (refer to 8.6), and reconnect the cable between the backplane and display (refer to 8.1.7). 4. If the problem persists, replace the monitoring and controlling assembly (refer to 11.1.11). 1. Check whether gas is supplied normally.
  • Page 248 Message Priority Cause Solution 11.1.11). 1. Disconnect the gas supply, disconnect the patient airway connection, and exit the standby mode. Select Setup > Service > Data Monitors > Zero Sensors, and check whether the current zero points of the PEEP sensor, Paw sensor, and Pes sensor exceed the stored zero 1.
  • Page 249 Message Priority Cause Solution 4. If the problem persists, replace the monitoring and controlling assembly (refer to 11.1.11). In volume control ventilation mode, the Fresh Gas Flow 1. Decrease the fresh gas flow setting as fresh gas flow setting Too High required.
  • Page 250 Message Priority Cause Solution the preceding step, replace the monitoring and controlling assembly (refer to 11.1.11). If the problem persists, replace the vaporizer base valve assembly (refer to 11.1.12). Handle the problem as the switchover Auto/Manual The auto/manual switch High failure by referring to 7.4.2 after the Switch Failure malfunctions.

  • Page 251: Electronic Vaporizer Runtime Alarms

    7.3.6 Electronic Vaporizer Runtime Alarms Message Priority Cause Solution AA Vaporizer The anesthetic agent 1. Observe the remaining anesthetic Liquid Level Low liquid level is lower agent through the glass tube. If the than 50 ml and higher anesthetic agent is insufficient, fill than or equal to 20 the anesthetic agent.
  • Page 252 Message Priority Cause Solution (3) AA vaporizer injection branch failure (4) AA vaporizer heating board failure (5) AA vaporizer drive gas branch failure (6) AA vaporizer voltage error AA Vaporizer High An AA vaporizer Rectify the fault based on the alarm Selftest Error self-test error occurs.
  • Page 253 Message Priority Cause Solution the external and internal AG modules. 4. If both the measured values of the external and internal AG modules in step 3 are lower than 0.8% or higher than 1.2%, replace the electronic vaporizer. 5. If only the measured value of the internal AG module in step 3 is lower than 0.8% or higher than 1.2%, replace the internal AG...
  • Page 254 Failure Cause Solution Code 1. Reinstall the electronic vaporizer, or Boil-off space Electronic restart the machine. 00000002 temperature sensor vaporizer 2. If the problem persists, replace the failure electronic vaporizer. 1. Reinstall the electronic vaporizer, or Heating Module Electronic restart the machine. 00000004 Failure vaporizer...

  • Page 255: Agss Module Runtime Alarms

    7.3.7 AGSS Module Runtime Alarms Message Priority Cause Solution 1. Adjust the AGSS knob. 2. Check the hospitals' waste gas disposal Scavenging Flow The scavenging system. is Too High flow is too high. 3. If the problem persists, replace the AGSS (refer to 11.1.14).

  • Page 256: Hfnc Module Runtime Alarms

    Message Priority Cause Solution 3. If the problem persists, replace the auxiliary O2/air module (refer to 11.1.4). The calibration table of 1. Restart the auxiliary O2/air module. Calibrate Aux the proportional valve or 2. If the problem persists, replace the O2/AIR Module sensor has no data or has auxiliary O2/air module (refer to 11.1.4).
  • Page 257 Message Priority Cause Solution 1. Re-plug the AG module, or replace the slot. The O2 sensor O2 Sensor Error 2. If the problem persists or the alarm malfunctions. occurs repeatedly, replace the AG module. 1. Re-plug the AG module, or replace the slot.
  • Page 258 Message Priority Cause Solution 3. If the problem persists, replace the AG module. 4. If the problem persists, check the connection cable between the backplane and the display. 5. If the problem persists, replace the module rack (refer to 11.1.14). 6.
  • Page 259 Message Priority Cause Solution halogenated agents. The measured MAC is less than 3. 1. Check whether only one type of The AG module detects halogenated agent is used. two and more types of 2. If only one type of anesthetic agent is halogenated agents.

  • Page 260: Internal Ag Module Runtime Alarms

    Message Priority Cause Solution exceeds the monitored gas to the normal range. measurement range of 2. If the problem persists, calibrate the the module. AG module again. 3. If the problem persists, replace the AG module. 1. Decrease the concentration of the The monitored value monitored gas to the normal range.

  • Page 261: Bis Module Runtime Alarms

    Message Priority Cause Solution malfunctions, or the 2. If the problem persists, disassemble the communication fails. VE component (refer to 8.29), and then re-connect the cable of the AG module. 3. If the problem persists, replace the internal AG module (refer to 11.1.7). 1.
  • Page 262 Message Priority Cause Solution about BIS module 2. If the problem persists, replace the initialization. BIS module. 3. If the problem persists, check the connection cable between the backplane and the display. 4. If the problem persists, replace the module rack (refer to 11.1.14). 5.
  • Page 263 Message Priority Cause Solution BIS sensor. 1. Check the contact between BIS BIS Electrode 3 Lead BIS electrode 3 falls off sensor electrode 3 and the patient skin. from the patient. 2. If the problem persists, replace the BIS sensor. 1.
  • Page 264 Message Priority Cause Solution High Imped. electrode RE is too high. sensor electrode RE and the patient skin. 2. If the problem persists, replace the BIS sensor. 1. Check the contact between BIS sensor electrode RE and the patient BIS Electrode RE BIS electrode RE falls skin.

  • Page 265: Co2 Module Runtime Alarms

    3. If the problem persists, replace the occurs. BIS plug-in module. 1. Check the type of the BIS sensor. BIS Wrong Sensor A Mindray undeclared 2. If the problem persists, replace the Type BIS sensor is used. BIS sensor. A sensor overcurrent or 1.
  • Page 266 Message Priority Cause Solution module rack (refer to 11.1.14). 5. If the problem persists, replace the cable between the backplane and display. The CO2 sensor 1. Re-plug the CO2 module. CO2 Sensor High temperature is greater 2. If the problem persists, replace the Temp than 63°C.
  • Page 267 Message Priority Cause Solution The monitored value 1. Recalibrate the CO2 module. FiCO2 Overrange exceeds the measurement 2. If the problem persists, replace the range. CO2 module. 1. Re-zero the CO2 module. CO2 Zero Failed The CO2 module fails. 2. If the problem persists, replace the CO2 module.

  • Page 268: Nmt Module Runtime Alarms

    Message Priority Cause Solution Range temperature of the 2. If the problem persists, replace the MiniMedi CO2 module CO2 module. is beyond the normal range. 1. Re-plug the CO2 module. The MiniMedi CO2 2. Recalibrate the CO2 module. CO2 Check Cal. module fails.
  • Page 269 Message Priority Cause Solution connection cable between the backplane and the display. 4. If the problem persists, replace the module rack (refer to 11.1.14). 5. If the problem persists, replace the cable between the backplane and display. 1. Re-plug the NMT module, main cable, sensor, and stimulation electrode, or plug the NMT module to another machine.

  • Page 270: Typical Troubleshooting

    Message Priority Cause Solution sensor or NMT module. 1. Recalibrate the sensor. TOF-Ratio Over ST-Ratio measurement is 2. If the alarm persists, replace the Range out of range. sensor or NMT module. 1. Recalibrate the sensor. DBS-Ratio Over TOF-Ratio measurement 2.

  • Page 271: Mechanical Ventilation Stop

    switch is turned Data Monitors > Status both of auto/manual auto/manual switch Monitor to access the switch position switches 1 and 2 (refer to 11.1.12). monitoring screen. Turn the is inconsistent with that of auto/manual switch to Manual the auto/manual switch. and Auto in turn, and check The status of the Replace the...

  • Page 272: Inaccurate Airway Pressure Control

    Failure Confirmation Cause Confirmation Solution Description Result constant-flow test replace the sensor (refer to for further analysis 11.5.2). by referring to 5.16. Check the zero point of the Zero the sensor by referring Refer to 5.15. sensor by referring to 5.15. to 6.3.7.

  • Page 273: Inaccurate Peep Control

    Failure Confirmation Cause Confirmation Solution Description Result The fresh air Adjust the fresh air flow Check the fresh air flow flow setting is setting to be within the setting. beyond the optimizer range. optimizer range. Check the zero point of the Zero the sensor by referring Refer to 5.15.

  • Page 274: Irregular Flow Waveforms

    Failure Confirmation Cause Confirmation Solution Description Result 3-way valve sampling line are connected properly. Remove the VE assembly by referring to 8.29 and check The silicone tube Reconnect the silicone tube whether the sampling line on loosens or is and prevent it from the work surface is connected occluded.

  • Page 275: Bfcs Failures

    Failure Confirmation Cause Confirmation Solution Description Result Check whether other A ventilation Refer to 4.3 to clear the technical alarms are technical alarm is alarm. generated. generated. (1) Replace the sensor (refer to 11.5.2). (2) If the problem persists, replace the sensor adapter The problem The problem persists.

  • Page 276: Electronic Vaporizer Failures

    Failure Cause Confirmation Confirmation Result Solution Description not fall off. The status of the 4. Access the FCS screen corresponding (1) Replace the (refer to 4.6.5), set electromagnet does electromagnets of the Electromagnet 1 and EFPM not change, or BFCS door (refer to Electromagnet 1 to ON, and changes from ON to 11.1.5).
  • Page 277 Failure Confirmation Cause Confirmation Solution Description Result board and its cables (refer to 11.4.1). The vaporizer Proceed with step 3 to cannot be started. continue with the check. The vaporizer Replace the electronic status is ON. vaporizer. (1) Replace the electronic 3.

  • Page 278: Agss Failures

    Failure Confirmation Cause Confirmation Solution Description Result the output pressure of the kPa (22±0.7 psi). secondary pressure regulator The output pressure Adjust or replace the with a manometer. is beyond 150±5 secondary pressure kPa (22±0.7 psi). regulator (refer to 11.1.4). The gas supply 1.

  • Page 279: Auxiliary O2/Air And Hfnc Module Failures

    Failure Confirmation Cause Confirmation Solution Description Result (3) If the problem persists, replace the monitoring and controlling assembly (refer to 11.1.11). 7.4.11 Auxiliary O2/Air and HFNC Module Failures Failure Confirmation Cause Confirmation Solution Description Result (1) Reconnect or replace the No Comm Stop cable between the auxiliary alarm is generated.
  • Page 280 Failure Confirmation Cause Confirmation Solution Description Result or HFNC module (refer to 11.1.4). Check whether the gas supply is connected properly The O2 supply Connect or replace the gas (O2 supply is required for pressure is less than supply. the HFNC module), and is 280 kPa (40 psi).

  • Page 281: After-Service Tests

    7.5 After-Service Tests Different test items are required after different troubleshooting. Perform tests based on the requirements of each FRU described in 11 FRUs after troubleshooting. 7.6 Diagnostic Tests Select Setup > Service from the main screen and enter the service password to access the Diagnostic Tests screen.
  • Page 282 7-58...
  • Page 283 7-59...
  • Page 284 7.6.1.1 Ventilator Valve Control Status Diagnostic Test (1) Select Setup > Service > Diagnostic Tests > Valves to access the Valve Diagnostic Tests screen. (2) Safety valve diagnostic test: If the safety valve is set to On, on the status bar on the left, both the safety valve states monitored by the VCM and VPM should be On.
  • Page 285 7.6.1.3 Pressure Sensor Test When no pressure measurement device is available, check the pressure sensors in the following way: 1) Directly connect the inspiratory port to the expiratory port with a breathing hose, or connect the patient circuit to the inspiratory port, expiratory port, and leak test plug in the same way as that in the leak test.

  • Page 286: Insp Valve Test

    7.6.2 Insp Valve Test Check whether the supply voltage and feedback current of the valve are within normal range. Select Setup > Service > Diagnostic Tests > Insp Valve. 7-62...

  • Page 287: Peep Valve Test

    7.6.3 PEEP Valve Test Check whether the supply voltage and feedback current of the valve are within normal range. Select Setup > Service > Diagnostic Tests > PEEP Valve. 7-63...

  • Page 288: Safety Valve Test

    7.6.4 Safety Valve Test Check whether the monitoring module and auxiliary module can open and close the safety valve normally. Select Setup > Service > Diagnostic Tests > Safety Valve. 7-64...

  • Page 289: Fcs Tests

    7.6.5 FCS Tests Select Setup > Service > Diagnostic Tests > FCS Tests. 7-65...
  • Page 290 7-66...
  • Page 291 7.6.5.1 FCS Tests Properly connect the gas supply (O2, N2, and AIR), and let the machine enter the standby state. Select Setup > Service > Diagnostic Tests > FCS Tests to access the FCS diagnostic test screen. Set the BFCS two-way valve to EFCS and BFCS in turn. On the status bar on the left, the BFCS two-way valve status should be consistent with the settings.
  • Page 292 balance gas proportional valve to 300 mA. The balance gas limb flow and the total flow displayed on the left should be above 0. If the sensors indicate that no flow is detected, the N2O three-way valve or the balance gas proportional valve is faulty.

  • Page 293: Vaporizer Tests (A9)

    7.6.6 Vaporizer Tests (A9) Here you can check if the vaporizer valves are working correctly. Select Setup > Service > Diagnostic Tests > Vaporizer 1 Test or Vaporizer 2 Test. 7-69...
  • Page 294 7-70...
  • Page 295 7-71...
  • Page 296 7-72...
  • Page 297 7-73...
  • Page 298 7-74...

  • Page 299: Hfnc Test

    7.6.7 HFNC Test Here you can check if the HFNC valves are working correctly. Select Setup > Service > Diagnostic Tests > HFNC. 7-75...
  • Page 300 FOR YOUR NOTES 7-76...

  • Page 301: Repair And Disassembly

    Repair and Disassembly 8.1 Disassemble the O2 Cell Holder Assembly 8.1.1 Prepare for Disassembly 8.1.1.1 Tools During parts disassembly and replacement, the following tools may be required: None.  8.1.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 302: Remove The Sodalime Absorber Canister Assembly

    Make sure that the anesthesia machine is turned off and disconnected from the A/C power  source. Bleed down the gas pressure inside the anesthesia machine to avoid personal injury or  equipment damage. Disconnect all pipeline and cylinder gas supplies. ...

  • Page 303: Disassemble The Bag Arm Assembly

    Bypass assembly 8.4 Disassemble the Bag Arm Assembly 8.4.1 Prepare for Disassembly 8.4.1.1 Tools During parts disassembly and replacement, the following tools may be required: None.  8.4.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 304: Remove The Patient Circuit Assembly

    Make sure that the anesthesia machine is turned off and disconnected from the A/C power  source. Bleed down the gas pressure inside the anesthesia machine to avoid personal injury or  equipment damage. Disconnect all pipeline and cylinder gas supplies. ...

  • Page 305: Disassemble The Locking Nuts Of The Inspiration And Expiration Connectors

    APL valve assembly 8.7 Disassemble the Locking Nuts of the Inspiration and Expiration Connectors 8.7.1 Prepare for Disassembly 8.7.1.1 Tools During parts disassembly and replacement, the following tools may be required: None.  8.7.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 306: Disassemble The Inspiration And Expiration Connectors

    8.8 Disassemble the Inspiration and Expiration Connectors 8.8.1 Prepare for Disassembly 8.8.1.1 Tools During parts disassembly and replacement, the following tools may be required: None.  8.8.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 307: Disassemble The Volume Exchanger Assembly

    8.10 Disassemble the Volume Exchanger Assembly 8.10.1 Prepare for Disassembly 8.10.1.1 Tools During parts disassembly and replacement, the following tools may be required: None.  8.10.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 308: Remove The Ve Box Assembly

    8.11.1.2 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.  8.11.1.3 Pre-disassembly Refer to 8.1.4Remove the Work Surface Cover Plate FRU to remove the work surface cover plate.

  • Page 309: Remove The Ve Mounting Box In-Position Switch

    8.12.2 Remove the VE Mounting Box In-Position Switch Remove the two screws with the Phillips screwdriver, remove the protection cap, disconnect the plug, and then pull out the in-position switch. In-position switch 8.13 Pre-disassembly (Disassemble Housings and Some System Parts) 8.13.1 Open the Service Door Remove the five screws from the service door with the Phillips screwdriver to open the door.

  • Page 310: Remove The Rear Cover Plate Of The Work Surface

    8.13.3 Remove the Rear Cover Plate of the Work Surface Turn the three pentagonal knobs on the cylinder yoke assembly counterclockwise to remove the knobs (if there is a cylinder yoke). Remove the two screws from the rear cover plate of the work surface with the Phillips screwdriver to remove the rear cover plate.

  • Page 311: Remove The Upper-Left Cover Plate

    Disconnect the cables and tubes from the instrument panel assembly and remove the assembly. Figure A Figure B Instrument panel assembly BFCS door 8.13.6 Remove the Upper-Left Cover Plate Remove APL valve. Remove the vacuum regulator - 2 screws to remove the cover and 4 screws from the inside. Disconnect tubes 147 and 148b.

  • Page 312: Remove The Display Assembly

    Two screws near the One screw under the Two screws on the rear patient circuit O2 cell door 8.13.7 Remove the Display Assembly Remove the six screws (marked by ○ in Figure A) with the Phillips screwdriver to remove the rear cover plate of the display assembly. Remove the four screws (marked by ○...

  • Page 313: Remove The N2O, Air, And O2 Inlet Assemblies

    Disconnect all pipeline and cylinder gas supplies.  Maneuver the anesthesia machine to an appropriate location and then apply the brake.  8.14.1.3 Pre-disassembly Refer to 8.1.1Open the Service Door to open the service door. 8.14.2 Remove the N2O, Air, and O2 Inlet Assemblies Remove the two screws fastening the corresponding gas inlet assembly with the M4 hexagon screw spanner (due to the space limitation, remove the N2O inlet assembly first during the disassembly).

  • Page 314: Remove The Pipeline Negative Pressure Inlet Assembly

    Disconnect all pipelines and cylinder gas supplies.  Maneuver the anesthesia machine to an appropriate location and then apply the brake.  8.15.1.3 Pre-disassembly Refer to 8.1.1Open the Service Door to open the service door. 8.15.2 Remove the Pipeline Negative Pressure Inlet Assembly Disconnect the hose from the pipeline negative pressure inlet assembly.

  • Page 315: Remove The Pressure Switch (Gas Inlet)

    Remove the gas inlet assembly corresponding to the pressure switch. Refer to steps 1 and 2 in section 8.2.2. 8.16.2 Remove the Pressure Switch (Gas Inlet) Remove the two screws fastening the switch pressure with the M3 hexagon screw spanner, disconnect the plug of the pressure switch, and remove the pressure switch.

  • Page 316: Disassemble The Monitoring Board

    8.18 Disassemble the Monitoring Board 8.18.1 Prepare for Disassembly 8.18.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.18.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 317: Disassemble The Ac-Dc Board

    8.19 Disassemble the AC-DC Board 8.19.1 Prepare for Disassembly 8.19.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.19.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 318: Disassemble The Dc-Dc Board

    Figure B 8.20 Disassemble the DC-DC Board 8.20.1 Prepare for Disassembly 8.20.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.20.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 319: Disassemble The Motherboard

    Figure B DC-DC board 8.21 Disassemble the Motherboard 8.21.1 Prepare for Disassembly 8.21.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.21.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 320: Disassemble The Pressure Regulator Assembly (0645)

    8.22 Disassemble the Pressure Regulator Assembly (0645) 8.22.1 Prepare for Disassembly 8.22.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.22.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 321: Remove The Efcs Flowmeter Monitoring Board

    Maneuver the anesthesia machine to an appropriate location and then apply the brake.  8.23.1.3 Pre-disassembly Refer to 8.1.1Open the Service Door to open the service door. 8.23.2 Remove the EFCS Flowmeter Monitoring Board Disconnect the cable plugs from the EFCS flowmeter monitoring board. Remove the two screws (marked by □...

  • Page 322: Disassemble The Efcs Flowmeter Flow Sensors

    8.25 Disassemble the EFCS Flowmeter Flow Sensors 8.25.1 Prepare for Disassembly 8.25.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.25.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 323: Disassemble The N2O, Air, And O2 Cylinder Yoke Assemblies

    Figure A Figure B Figure C 8.26 Disassemble the N2O, Air, and O2 Cylinder Yoke Assemblies 8.26.1 Prepare for Disassembly 8.26.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  220 mm torque wrench ...

  • Page 324: Remove The N2O, Air, And O2 Cylinder Yoke Assemblies

    Refer to 8.1.2Remove the Auxiliary Output Assembly to remove the auxiliary output assembly. Refer to 8.1.3Remove the Rear Cover Plate of the Work Surface to remove the rear cover plate of the work surface. 8.26.2 Remove the N2O, Air, and O2 Cylinder Yoke Assemblies Disconnect the cable plug on the rear of the cylinder yoke and the hose at the bottom of the cylinder yoke.

  • Page 325: Remove The Sensor Adapter Board Pcba

    Refer to 8.1.2Remove the Auxiliary Output Assembly to remove the auxiliary output assembly. Refer to 8.1.3Remove the Rear Cover Plate of the Work Surface to remove the rear cover plate of the work surface. 8.27.2 Remove the Sensor Adapter Board PCBA Disconnect the tubes from the sensor adapter board PCBA.

  • Page 326: Remove The High-Flow O2 Supply Assembly Or Auxiliary O2/Air Assembly8-26

    Refer to 8.1.3Remove the Rear Cover Plate of the Work Surface to remove the rear cover plate of the work surface. 8.28.2 Remove the High-Flow O2 Supply Assembly or Auxiliary O2/Air Assembly Disconnect the cables and tubes from the high-flow O2 supply assembly or auxiliary O2/air assembly.

  • Page 327: Remove The System Switch Assembly

    Refer to 8.1.4Remove the Work Surface Cover Plate FRU to remove the work surface cover plate. Refer to 8.1.5Remove the Instrument Panel Assembly to remove the instrument panel assembly. 8.29.2 Remove the System Switch Assembly Disconnect the hose and cable from the system switch assembly. Remove the four screws from the system switch assembly with the Phillips screwdriver to remove the assembly.

  • Page 328: Remove The High-Flow O2 Therapy Flowmeter Or Auxiliary Output Flowmeter Assembly

    Refer to 8.1.5Remove the Instrument Panel Assembly to remove the instrument panel assembly. 8.30.2 Remove the High-Flow O2 Therapy Flowmeter or Auxiliary Output Flowmeter Assembly Disconnect the hose and cable from the high-flow O2 therapy flowmeter or auxiliary output flowmeter assembly. Remove the four screws from the high-flow O2 therapy flowmeter or auxiliary output flowmeter assembly with the Phillips screwdriver to remove the assembly.

  • Page 329: Disassemble The Lower Drawer Assembly

    Left rail Right rail 8.32 Disassemble the Lower Drawer Assembly 8.32.1 Prepare for Disassembly 8.32.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.32.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 330: Disassemble The Co2 Locking Assembly

    Right rail Left rail 8.33 Disassemble the CO2 Locking Assembly 8.33.1 Prepare for Disassembly 8.33.1.1 Tools During parts disassembly and replacement, the following tools may be required: M5 hexagon screw spanner  Scissors  8.33.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 331: Disassemble The Agss Assembly

    Remove the three screws with the M5 hexagon screw spanner to remove the CO2 locking assembly. The cable strap and cable are routed under the rails. CO2 locking assembly 8.34 Disassemble the AGSS Assembly 8.34.1 Prepare for Disassembly 8.34.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver ...

  • Page 332: Disassemble The Module Rack Assembly

    Two screws on the Two screws inside the AGSS assembly rear of the cart drawer mounting position 8.35 Disassemble the Module Rack Assembly 8.35.1 Prepare for Disassembly 8.35.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver ...

  • Page 333: Disassemble The Battery Box Assembly

    8.36 Disassemble the Battery Box Assembly 8.36.1 Prepare for Disassembly 8.36.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.36.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 334: Disassemble The Anesthesia Calculation Pipeline Assembly

    8.37 Disassemble the Anesthesia Calculation Pipeline Assembly 8.37.1 Prepare for Disassembly 8.37.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  Scissors  8.37.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 335: Remove The Drive Gas Assembly

    8.38.1.2 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.  8.38.1.3 Pre-disassembly Refer to 8.1.4Remove the Work Surface Cover Plate FRU to remove the work surface cover plate.

  • Page 336: Disassemble The O2 Cell Calibration Valve Assembly

    Remove the ACGO assembly. 8.40 Disassemble the O2 Cell Calibration Valve Assembly 8.40.1 Prepare for Disassembly 8.40.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.40.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 337: Disassemble The Air Filter

    8.41 Disassemble the Air Filter 8.41.1 Prepare for Disassembly 8.41.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.41.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 338: Remove The Ag Module

    8.42.1.3 Pre-disassembly Refer to 8.1.4Remove the Work Surface Cover Plate FRU to remove the work surface cover plate. Refer to step 1 in 8.23.2Remove the Patient Circuit Assembly to remove the patient circuit. Refer to 8.28Disassemble the Volume Exchanger Assembly to remove the volume exchanger assembly.

  • Page 339: Disassemble The One-Way Valve

    8.44 Disassemble the One-Way Valve 8.44.1 Prepare for Disassembly 8.44.1.1 Tools During parts disassembly and replacement, the following tools may be required: None.  8.44.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 340: Remove The Vaporizer Manifold Assembly

    8.45.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power  source. Bleed down the gas pressure inside the anesthesia machine to avoid personal injury or  equipment damage. Disconnect all pipeline and cylinder gas supplies. ...

  • Page 341: Disassemble The Electronic Vaporizer Base Interface Board Pcba (A9)

    8.46 Disassemble the Electronic Vaporizer Base Interface Board PCBA (A9) 8.46.1 Prepare for Disassembly 8.46.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.46.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 342: Remove The O-Ring Of Gas Connector (A9)

    8.47.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power  source. Bleed down the gas pressure inside the anesthesia machine to avoid personal injury or  equipment damage. Disconnect all pipelines and cylinder gas supplies. ...

  • Page 343: Remove The Pneumatically-Controlled Lock Assemblies

    Phillips screwdriver  M4 and M5 hexagon screw spanners  8.48.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power  source. Bleed down the gas pressure inside the anesthesia machine to avoid personal injury or ...

  • Page 344: Remove The Small-Display Cpu Board Assembly (Without The Display Cable)8-44

    8.49.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power  source. Bleed down the gas pressure inside the anesthesia machine to avoid personal injury or  equipment damage. Disconnect all pipeline and cylinder gas supplies. ...

  • Page 345: Remove The Small Display Assembly

    Make sure that the anesthesia machine is turned off and disconnected from the A/C power  source. Bleed down the gas pressure inside the anesthesia machine to avoid personal injury or  equipment damage. Disconnect all pipeline and cylinder gas supplies. ...

  • Page 346: Disassemble The Backup Flowmeter Assembly

    8.51 Disassemble the Backup Flowmeter Assembly 8.51.1 Prepare for Disassembly 8.51.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.51.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 347: Disassemble The Backup Flowmeter Door Electromagnet

    8.52 Disassemble the Backup Flowmeter Door Electromagnet 8.52.1 Prepare for Disassembly 8.52.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.52.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 348: Remove The Backup Flowmeter Door Electromagnet

    8.52.2 Remove the Backup Flowmeter Door Electromagnet Disconnect the cables (marked by □ in the figure) from the backup flowmeter door electromagnet. Remove the two screws from the backup flowmeter door electromagnet with the Phillips screwdriver to remove the electromagnet. Electromagnet 8.53 Disassemble the Indicator Light Board 8.53.1 Prepare for Disassembly...

  • Page 349: Disassemble The Segment Display

    Remove the two screws from the indicator light board with the Phillips screwdriver to remove the indicator light board. Indicator light board 8.54 Disassemble the Segment Display 8.54.1 Prepare for Disassembly 8.54.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver ...

  • Page 350: Disassemble The Encoder Beside The Segment Display

    Segment display 8.55 Disassemble the Encoder Beside the Segment Display 8.55.1 Prepare for Disassembly 8.55.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  220 mm torque wrench  8.55.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 351: Disassemble The Bfcs Switch Control Board

    Encoder assembly 8.56 Disassemble the BFCS Switch Control Board 8.56.1 Prepare for Disassembly 8.56.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.56.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 352: Remove The Bfcs Switch Control Board

    Refer to 8.1.5Remove the Instrument Panel Assembly to remove the instrument panel assembly. 8.56.2 Remove the BFCS Switch Control Board Disconnect the cable (marked by □ in the figure) from the BFCS switch control board and horizontally pull out the BFCS switch control board. BFCS switch control board 8.57 Disassemble the BFCS Door Assembly...

  • Page 353: Disassemble The Backup Flowmeter Keyboard

    8.58 Disassemble the Backup Flowmeter Keyboard 8.58.1 Prepare for Disassembly 8.58.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.58.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 354: Disassemble The Alarm Lamp Board

    8.59 Disassemble the Alarm Lamp Board 8.59.1 Prepare for Disassembly 8.59.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.59.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 355: Remove The Speaker

    8.60.1.3 Pre-disassembly Refer to step 1 in 8.1.7Remove the Display Assembly to remove the display assembly. 8.60.2 Remove the Speaker Disconnect the cable from the speaker. Remove the screw with the Phillips screwdriver to remove the speaker. 8.61 Disassemble the Display Service Kit 8.61.1 Prepare for Disassembly 8.61.1.1 Tools During parts disassembly and replacement, the following tools may be required:...

  • Page 356: Remove The Cpu Board Pcba

    8.62.1.2 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.  8.62.1.3 Pre-disassembly Refer to step 1 in 8.1.7Remove the Display Assembly to remove the display assembly. 8.62.2 Remove the CPU Board PCBA Disconnect the cables from the CPU board PCBA.

  • Page 357: Disassemble The Encoder Knob (Top Hat-Shaped)

    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 ...

  • Page 358: Disassemble The Flow Regulator Encoder And Two Gas Knobs

    8.65 Disassemble the Flow Regulator Encoder and Two Gas Knobs 8.65.1 Prepare for Disassembly 8.65.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  Needle-nose pliers  8.65.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 359: Remove The Airway Pressure Gauge

    8.66.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power  source. Bleed down the gas pressure inside the anesthesia machine to avoid personal injury or  equipment damage. Disconnect all pipeline and cylinder gas supplies. ...

  • Page 360: Remove The Auto/Manual Switch Assembly

    Refer to 8.29Disassemble the VE Box Assembly to remove the VE box assembly. Refer to 8.20Disassemble the Sodalime Absorber Canister Assembly to remove the Venturi negative pressure control panel assembly. Refer to 8.24Disassemble the APL Valve Assembly to remove the APL valve assembly. Refer to 8.1.6Remove the Upper-Left Cover Plate to remove the upper-left cover plate assembly of the work surface.

  • Page 361: Remove The Upper-Left Cover Plate Fru

    Refer to 8.20Disassemble the Sodalime Absorber Canister Assembly to remove the Venturi negative pressure control panel assembly. Refer to 8.24Disassemble the APL Valve Assembly to remove the APL valve assembly. Refer to 8.1.6Remove the Upper-Left Cover Plate to remove the upper-left cover plate assembly of the work surface.

  • Page 362: Remove The O2 Cell Door Cover Assembly

    Refer to 8.29Disassemble the VE Box Assembly to remove the VE box assembly. Refer to 8.20Disassemble the Sodalime Absorber Canister Assembly to remove the Venturi negative pressure control panel assembly. Refer to 8.24Disassemble the APL Valve Assembly to remove the APL valve assembly. Refer to 8.1.6Remove the Upper-Left Cover Plate to remove the upper-left cover plate assembly of the work surface.

  • Page 363: Disassemble The Circuit Adapter Block Assembly

    Cut the cable strap with the scissors and remove the O2 cell cable. 8.71 Disassemble the Circuit Adapter Block Assembly 8.71.1 Prepare for Disassembly 8.71.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.71.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power...

  • Page 364: Disassemble The Circuit Switch (Hook Lock)

    Circuit adapter block assembly 8.72 Disassemble the Circuit Switch (Hook Lock) 8.72.1 Prepare for Disassembly 8.72.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.72.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 365: Disassemble The Circuit Heater

    8.73 Disassemble the Circuit Heater 8.73.1 Prepare for Disassembly 8.73.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.73.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 366: Disassemble The Auto/Manual Position Detection Switch

    8.74 Disassemble the Auto/Manual Position Detection Switch 8.74.1 Prepare for Disassembly 8.74.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.74.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 367: Disassemble The Apl Valve Mounting Base Assembly

    8.75 Disassemble the APL Valve Mounting Base Assembly 8.75.1 Prepare for Disassembly 8.75.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.75.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 368: Disassemble The Auto/Manual Drive Valve Assembly

    8.76 Disassemble the Auto/Manual Drive Valve Assembly 8.76.1 Prepare for Disassembly 8.76.1.1 Tools During parts disassembly and replacement, the following tools may be required: Phillips screwdriver  8.76.1.2 Preparations Before disassembly, Make sure that the anesthesia machine is turned off and disconnected from the A/C power ...

  • Page 369: Remove The Steinco 5-Inch Central Control Caster

    8.77.1.2 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.  8.77.2 Remove the STEINCO 5-Inch Central Control Caster Refer to 8.1.1Open the Service Door to open the service door.
  • Page 370 Left and right side panels Rear side of the chassis Front side of the chassis Turn over the chassis and remove the seven screws with the Phillips screwdriver to remove the front housing of the chassis. Front housing of the chassis 8-70...
  • Page 371 Remove the four screws (marked by ○ in the figure) with the Phillips screwdriver to remove the flap. Then remove the four screws (marked by □ in the figure) with the M8 hexagon screw spanner to remove the right-front caster assembly. Right-front caster assembly Flap Remove the screw (marked by ○...

  • Page 372: Disassemble The Steinco 5-Inch Standalone Brake Casters

    10. Pull out the caster driven shaft (0645) for a certain distance, remove the four screws from the STEINCO 5-inch central control caster with the M6 hexagon screw spanner, and pull out the caster upward. Caster driven shaft (0645) 8.78 Disassemble the STEINCO 5-Inch Standalone Brake Casters 8.78.1 Prepare for Disassembly 8.78.1.1 Tools...

  • Page 373: Remove The Steinco 5-Inch Standalone Brake Casters

    8.78.1.3 Pre-disassembly Refer to steps 1 to 5 in 8.76.2Remove the STEINCO 5-Inch Central Control Caster to remove the chassis. 8.78.2 Remove the STEINCO 5-Inch Standalone Brake Casters Turn over the chassis and remove the six screws with the Phillips screwdriver to remove the rear housing of the chassis.
  • Page 374 FOR YOUR NOTES 8-74...

  • Page 375: Software Upload

    Software Upload List of software upload functions Software Upgrade Modules Included Latest Version Package Bundle Version 01.00.00.04 Host Software 01.00.00.04 Linux Kernel 02.07.00.14 Status Screen Software 01.00.00.02 Linux Kernel (Status Screen) 02.07.00.14 Ventilator Control Module 01.00.00.01 Avatar.mpkg Ventilator Protect Module 01.00.00.01 EFCS 01.00.00.01...

  • Page 376: Preparations

    9.1 Preparations 1.Connect the network port of the PC to the CS1 port of the A9/A8 by using a crossover network cable, as shown in the figure below. 2.Before running the Mindray anesthesia machine and ventilator software upgrade tool, set the IP address of the PC to 77.77.1.xxx and the subnet mask to 255.255.255.0.

  • Page 377: Upgrading The Software

    (2) When you are prompted to set a language, select English and click OK. (3) When the Welcome dialog box is displayed, click Next. (4) When the Customer Information dialog box is displayed, enter the following information: (5) User Name: Mindray (6) Company Name: Mindray (7) Serial Number: 26582640 (8) Click Next.
  • Page 378 4.Click Select Package, select the .mpkg or .pkg package, and click OK.
  • Page 379 Upgrade the software one by one according to the order in the software package.  To check the software version on the A9/A8, select Setup > Service, enter the service password, and press Enter. The service screen is displayed, and you can check system information and view the united version number.

  • Page 380: Upgrade Via Usb Drive

    9.3 Upgrade via USB Drive Create the UPGRADE_AMP folder under the root directory of the USB drive. Create the Avatar sub-folder under the UPGRADE_AMP folder. Place the Avatar_Installer.pkg file and software upgrade package under the Avatar folder. Note: Before upgrading the high-flow O2 supply assembly, enable high-flow O2 supply (the flowmeter backlight is on).

  • Page 381: Software Function Activation

    ID, current configurations, and functions to be activated. If you need to activate functions listed in the above table, contact the service department of Mindray to apply for the activation codes. Detailed steps are as follows: 1.Record the anesthesia machine SN.

  • Page 382: Activation Procedure

    3.Record the functions that need to be activated and search for the P/N. 4.Provide the information above for the service department of Mindray when you issue a software function upgrade order. 10.2 Activation Procedure NOTE Record the current configurations and functions to be activated before activation.
  • Page 383 3.Insert the USB drive in the machine on which the function configurations need to be activated. Access the License menu as follows: Select Main > Service, enter the correct password, and select Setup > License, as shown below: 4.Click Install to active the function configurations via the USB drive. When the activation is completed, the system displays "New functions activated, please restart! "...
  • Page 384 FOR YOUR NOTES 10-4...

  • Page 385: Frus

    FRUs 11.1 Mechanical Subsystem 11.1.1 Display Assembly Name Test Item After Remarks Replacement 5.1 Power-on self-test. The CPU board Display service kit 115-077944-00 Check the touchscreen PCBA is and encoder functions. excluded. 11-1...
  • Page 386 Check whether the lamp is Alarm lamp board PCBA 051-003208-00 turned on in red, yellow, and blue in turn. Speaker assembly 115-065029-00 5.1 Power-on self-test For A8, the A8 software package 115-077947-00(A9 US) Main screen CPU board 5.1 Power-on self-test should be 115-077949-00(A9...

  • Page 387: Cylinder Yoke Assembly

    11.1.2 Cylinder Yoke Assembly Name Test Item After Replacement Remarks 5.4.2 O2 cylinder supply test. O2 cylinder yoke assembly Observe whether the O2 (electronic monitoring) 115-066820-00 cylinder pressure is displayed on the small display. 5.4.1 N2O cylinder supply N2O cylinder yoke test.

  • Page 388: High-Flow O2 Therapy Flowmeter Assembly, And System Switch Assembly11-4

    11.1.3 High-Flow O2 Therapy Flowmeter Assembly, and System Switch Assembly Name Test Item After Remarks Replacement High-flow O2 therapy 5.9.1 High-flow O2 115-065008-00 flowmeter assembly supply test 5.2 System check; System switch assembly 115-064077-00 5.7.1 Vaporizer Monitoring Function Test 11-4...

  • Page 389: High-Flow O2 Supply Assembly, Anesthesia Calculation Inlet Pipeline Assembly, And Efcs Flowmeter Service Part

    11.1.4 High-Flow O2 Supply Assembly, Anesthesia Calculation Inlet Pipeline Assembly, and EFCS Flowmeter Service Part Name Test Item After Remarks Replacement 5.9.1 High-flow O2 Power on the supply test A8/A9 and switch the High-Flow O2 Supply 115-077955-00 HFNC on Assembly after the maintenance. Anesthesia calculation 5.9.5 Internal AG module...

  • Page 390: Instrument Panel Assembly

    11.1.5 Instrument Panel Assembly Name Test Item After Remarks Replacement BFCS switch 5.6 BFCS function test; control board 051-003212-00 5.7.1 Vaporizer Monitoring PCBA Function Test 5.6 BFCS function test; Two springs BFCS door 115-066824-00 5.7.1 Vaporizer Monitoring are included. service kit Function Test 5.1 Power-on self-test.
  • Page 391 Name Test Item After Remarks Replacement 5.1 Power-on self-test; Upgrade the Display board 5.7.1 Vaporizer Monitoring software FRU of status 115-077964-00(A9 US) Function Test package after screen maintenance. 5.1 Power-on self-test; Small-display 115-066860-00 5.7.1 Vaporizer Monitoring service part Function Test 5.1 Power-on self-test.

  • Page 392: O2 Cell Door Cover Assembly, O2 Cell Calibration Valve Assembly, And Acgo Assembly

    11.1.6 O2 Cell Door Cover Assembly, O2 Cell Calibration Valve Assembly, and ACGO Assembly Name Test Item After Remarks Replacement O2 cell door cover 5.2 System Check; assembly (US) (The 115-064805-00 5.7.1 Vaporizer door can be opened.) Monitoring Function Test O2 cell door cover 5.2 System Check;...

  • Page 393: Built-In Ag Assembly (A9)

    11.1.7 Built-in AG Assembly (A9) Name Test Item After Remarks Replacement 5.9.5 Internal AG module test; Air filter 082-003616-00 5.7.1 Vaporizer Monitoring Function Test 5.9.5 Internal AG module test; Internal AG module FRU 115-078073-00 5.7.1 Vaporizer Monitoring Function Test 11-9...

  • Page 394: Gas Inlet Assembly

    11.1.8 Gas Inlet Assembly 11-10...
  • Page 395 Name Test Item After Remarks Replacement 5.3.2 N2O supply test. N2O inlet assembly Check whether the N2O 115-066338-00 (Canada) pressure is displayed on the small display. 5.3.2 N2O supply test. Check whether the N2O N2O inlet assembly (US) 115-064069-00 pressure is displayed on the small display.

  • Page 396: Drawer And Battery Box Assemblies

    11.1.9 Drawer and Battery Box Assemblies Name Test Item After Remarks Replacement Power on the machine, access the diagnostic maintenance Battery box screen, select Data Includes two assembly (two 115-066846-00 Monitors > Power System, batteries. batteries) and check the battery quantity and voltage.

  • Page 397: Circuit Adapter Block Assembly

    11.1.10 Circuit Adapter Block Assembly Name Test Item After Remarks Replacement 5.2 System Check; Circuit adapter block assembly 5.7.1 Vaporizer (circuit connector adapter 115-066856-00 Monitoring Function assembly) Test 5.10.2 APL Valve Test; Cables are Auto/manual position detection 5.7.1 Vaporizer included. 009-008835-00 switch Monitoring Function...

  • Page 398: Boards

    11.1.11 Boards Name Test Item After Remarks Replacement 5.1 Power-on The cable from self-test the AC-DC AC-DC board(A8) 115-066844-00 board to the DC-DC board is included. 5.1 Power-on The cable from self-test the AC-DC AC-DC board 115-066845-00 board to the...

  • Page 399: Work Surface And Left Cover Plate

    11.1.12 Work Surface and Left Cover Plate 11-15...
  • Page 400 Name Test Item After Remarks Replacement Airway pressure gauge 082-003308-00 5.2 System Check The pressure gauge is removed from Upper-left cover plate 5.7.1 Vaporizer the left cover 115-066828-00 Monitoring Function Test plate, and there is no auto/manual switch. 5.2 System Check; Auto/manual switch 115-064076-00 5.7.1 Vaporizer...

  • Page 401: Mechanical Vaporizer Subsystem (A8)

    11.1.13 Mechanical Vaporizer Subsystem (A8) Name Test Item After Remarks Replacement Vaporizer manifold assembly (A8) 115-064121-00 5.8.1 Vaporizer interlock assembly 5.8.4 Vaporizer leak test 11-17...

  • Page 402: Agss Assembly

    11.1.14 AGSS Assembly Name Test Item After Remarks Replacement Module rack assembly 115-065010-00 Connect gas modules to The infrared the three slots to check communication whether the gas modules board is included. work properly. 11-18...

  • Page 403: Ve Mounting Box Assembly

    11.1.15 VE Mounting Box Assembly Name Test Item After Remarks Replacement 5.7.1 Vaporizer SWITCH, small-stroke, VE mounting box M07-00010S-00 Monitoring caster-type, 200 gf in-position switch Function Test 11-19...

  • Page 404: Sensor Adapter Board Pcba

    11.1.16 Sensor Adapter Board PCBA Name Test Item After Remarks Replacement Perform 6.3.1 flow calibration and 6.3.6 pressure calibration first. 5.14 System ventilation Sensor adapter board FRU performance test (with auxiliary pressure 5.15 Sensor zero point for Canada) 115-070026-00 check Perform 6.3.1 flow calibration and 6.3.6 pressure calibration first.
  • Page 405 11-21...
  • Page 406 Name Test Item After Remarks Replacement Negative pressure control 5.12 Negative Pressure 115-064062-00 panel assembly (pipeline) Suction Tests Volume exchanger 115-066855-00 5.2 System Check assembly FRU 5.2 System Check; Electronic vaporizer base 115-066850-00 5.7.1 Vaporizer Monitoring assembly FRU Function Test Check the braking function STEINCO 5-inch 034-000670-00...
  • Page 407 11-23...
  • Page 408 Name Test Item After Remarks Replacement This assembly is applicable to A9. Pressure regulator 5.7.1 Vaporizer 115-064092-00 It is used to assembly (A9) monitoring function test monitor the drive gas pressure. 6.3.1 Flow calibration 6.3.6 Pressure calibration 6.3.2 O2 sensor VCM FRU (with calibration ACGO/with auxiliary...

  • Page 409: Drive Gas Assembly

    11.1.17 Drive Gas Assembly 11-25...

  • Page 410: Gas Supply Subsystem

    Name Test Item After Replacement Remarks 6.3.6 Pressure Calibration (Service) 5.2 System Check 5.14.2 VCV adult ventilation mode test Drive Gas assembly FRU 115-066825-00 5.14.3 VCV child ventilation mode test 5.14.4 PCV adult ventilation mode test 5.7.1 Vaporizer Monitoring Function Test 11.2 Gas Supply Subsystem 11.2.1 O2 Inlet Assembly Name...

  • Page 411: Flowmeter Subsystem

    11.3 Flowmeter Subsystem 11.3.1 EFCS Assembly Name Test Item After Remarks Replacement 6.3.9 Total flow sensor calibration EFCS flowmeter flow sensor 051-002721-00 5.5 EFCS accuracy test 6.3.9 Total flow sensor calibration test EFCS flowmeter monitoring 5.5 EFCS accuracy test board FRU 115-077990-00 5.6 BFCS function test 11-27...

  • Page 412: Vaporizer Subsystem(A9)

    11.4 Vaporizer Subsystem(A9) 11.4.1 Electronic Vaporizer Base Name Test Item After Remarks Replacement Electronic vaporizer base 5.7 Electronic vaporizer interface board PCBA 051-003280-00 test 5.7.2 Vaporizer self-locking test; Pneumatically-controlled lock 5.7.1 Vaporizer assembly 115-064346-00 Monitoring Function Test 11-28...

  • Page 413: Breathing Circuit Subsystem

    11.5 Breathing Circuit Subsystem 11.5.1 Patient Circuit Material Package Test Item Name Remarks After Replacement Bag arm assembly 115-048600-00 5.2 System Check Flexible bag arm 115-048035-00 5.2 System Check Auto/manual valve 115-064186-00 5.2 System Check 5.10.2 APL valve test APL valve assembly 115-064061-00 5.2 System Check Bypass assembly...

  • Page 414: Patient Circuit Assembly

    11.5.2 Patient circuit assembly Test Item Name Remarks After Replacement Valve cover 043-009522-00 5.2 System Check Check valve service part 801-0631-00104-00 5.2 System Check Locking nuts of the inspiration 801-0631-00059-00 5.2 System Check and expiration connectors Inspiration and expiration 801-0631-00057-00 5.2 System Check connectors Water collection cup...

  • Page 415: Circuit Connector Adapter Assembly

    11.5.3 Circuit Connector Adapter Assembly Test Item Name Remarks After Replacement 5.10.2 APL valve test; APL valve mounting 115-064187-00 5.7.1 Vaporizer Monitoring base assembly Function Test 5.13.2 "Breathing Circuit Not Circuit switch (hook Installed" alarm test; 801-0613-00053-00 lock) 5.7.1 Vaporizer Monitoring Function Test 5.10.4 Patient circuit heating test;...
  • Page 416 FOR YOUR NOTES 11-32...

  • Page 417: A Tube Connection Diagrams

    Tube Connection Diagrams A.1 A8 Tube Connection Diagram...
  • Page 418 A.2 A9 Tube Connection Diagram...
  • Page 419 Guide Rail Load The load of the GCX guide rail for the A8 anesthesia machine is as follows: L (mm) L = 4150/M M (kg) L (mm): maximum arm length M (kg): load CIS is mounted. The 12-inch arm accessory has the largest load (bending moment) among all arm accessories recognized by Mindray, with a maximum load of 13.6 kg (30 lbs).
  • Page 420 M (kg): load CIS is mounted. The 12-inch arm accessory has the largest load (bending moment) among all arm accessories recognized by Mindray, with a maximum load of 13.6 kg. Therefore, the force can be calculated as follows: Wmax = 13.6 kg × 304.8 mm = 4150 kgf.mm (30 lbf ft)
  • Page 421 The load of the GCX guide rail for the A8/A9 anesthesia machine is as follows: L (mm) L = 8535/M M (kg) L (mm): maximum arm length M (kg): load A collapsible auxiliary work surface is mounted. The (12+12)-inch double-hinged arm has the largest load (bending moment) among all arm accessories recognized by Mindray, with a maximum load of 14 kg.
  • Page 422 The load of the GCX guide rail for the A8/A9 anesthesia machine is as follows: L (mm) L = 8230/M M (kg) L (mm): maximum arm length M (kg): load The monitor bracket is mounted. The 12-inch arm accessory has the largest load (bending moment) among all arm accessories recognized by Mindray, with a maximum load of 27 kg.
  • Page 424 PN: 046-019104-00(4.0) December 26 2021...

This manual is also suitable for:

A9

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