Mindray WATO EX-55Pro Service Manual
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Mindray WATO EX-55Pro Service Manual

Anesthesia machine
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Table of Contents

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WATO EX-55Pro/65Pro
Anesthesia Machine
Service Manual

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Do you have a question about the WATO EX-55Pro and is the answer not in the manual?

Questions and answers

Marlize Diederiks
May 30, 2025

How do you prepare the anesthetic machine for a suspected case of malignant hyperthermia?

0
1 comments:
Mr. Anderson
May 30, 2025

To prepare the Mindray WATO EX-55Pro anesthesia machine for suspected malignant hyperthermia:

1. Disconnect all pipeline and cylinder gas supplies.
2. Prepare necessary tools for disassembly.
3. Move the machine to a proper location and apply the brake.
4. Wear special gloves due to possible internal contamination.
5. Bleed gas pressure:
- Close other cylinder valves and disconnect all pipeline gas supplies except O₂.
- If no O₂ pipeline is available, connect and open the O₂ cylinder.
- Turn the system switch ON.
- Open all flow controls except O₂.
- Ensure N₂O and AIR gauges read zero.
- Disconnect the O₂ pipeline (or close the O₂ cylinder valve).
- Press the O₂ flush button to bleed remaining O₂.
- Turn the system switch OFF.
6. Follow disassembly procedures to clean or replace components as needed.

These steps ensure removal of residual anesthetic gases that may trigger malignant hyperthermia.

This answer is automatically generated

0

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Summary of Contents for Mindray WATO EX-55Pro

  • Page 1 WATO EX-55Pro/65Pro Anesthesia Machine Service Manual...
  • Page 3 WATO are the registered trademarks or trademarks owned by Mindray in China and other countries. All other trademarks that appear in this manual are used only for editorial purposes without the intention of improperly using them. They are the property of their respective owners.
  • Page 4 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 Contents 1 Safety ............................1-1  1.1 Safety Information ........................1-1  1.2 Warnings ..........................1-1  1.3 Cautions ..........................1-2  1.4 Notes ............................1-2  2 Theory of Operation ........................ 2-1  2.1 Electrical Part .......................... 2-1  2.1.1 Outside Ports ...................... 2-2  2.1.2 Electrical Theory ....................2-3  2.1.5 Display System ....................
  • Page 6 4 Testing ............................4-1  4.1 System Inspection ........................4-1  4.2 System Self- Test ........................4-2  4.3 Leak and Compliance Tests ..................... 4-3  4.3.2 Manual Circuit Leak Test ................... 4-4  4.3.3 Troubleshooting—Leak Test ................4-5  4.4 Gas Supply Tests ........................4-5  4.4.1 O2 Pipeline Supply Test ..................
  • Page 7 4.12.5 Test the Sustained Airway Pressure Alarm ............. 4-30  4.12.6 Test the High Paw Alarm ................4-31  4.12.7 Test the Low Paw Alarm ................4-31  4.12.8 Breathing System Not Mounted Alarm Test ..........4-31  4.12.9 CO2 Absorbent Canister Alarm Test .............. 4-31  4.12.10 O2 Supply Failure Alarm Test ..............
  • Page 8 5.14 Flowmeter Pipeline ......................5-21  5.15 ACGO ..........................5-22  5.16 Module Rack ........................5-22  5.17 AG Module .......................... 5-22  5.18 BIS Module ......................... 5-22  5.19 CO2 Module ........................5-22  6 Device Maintenance ......................... 6-1  6.1 Maintenance Overview ......................6-1  6.2 Maintenance Period ......................... 6-1  6.3 System Check ..........................
  • Page 9 8.1.1 Fault Determination ................... 8-1  8.1.2 Avoiding Short Circuit of Component Leads ............. 8-1  8.1.3 Using Appropriate Tools ..................8-1  8.1.4 Cleanup of the Maintenance Area ..............8-2  8.2 Technical Alarms ........................8-2  8.2.1 Startup Alarm Messages ..................8-2  8.2.2 CPU Board Runtime Alarms ................8-7  8.2.3 Power Board Runtime Alarms ................
  • Page 10 9 Repair and Disassembly ......................9-1  9.1 Prepare for Disassembly ......................9-2  9.1.1 Tools ........................9-2  9.1.2 Preparations ......................9-2  9.1.3 Release Pressure ....................9-3  9.2 Disassemble Assemblies ......................9-3  9.2.1 Remove Top Cover Assembly and Top Plate Assembly ........9-3  9.2.2 Remove Speaker ....................
  • Page 11 9.2.39 Remove Air Compressor ................9-35  9.2.40 Remove Cart Slide ..................9-36  9.2.41 Remove Lock of Drawers ................9-36  9.3 Disassemble Breathing System (not compatible with Pre-Pak) ..........9-38  9.3.1 Remove O2 Sensor ................... 9-38  9.3.2 Remove Breathing Tubes ................. 9-39  9.3.3 Remove Flow Sensor ..................
  • Page 12 9.4.19 Remove APL Valve Assembly ................ 9-74  9.5 Electrical and Pneumatic Connections .................. 9-75  9.5.1 Electrical Connections..................9-75  9.5.2 Pneumatic Connections ..................9-79  10 Replacement Parts ....................... 10-1  10.1 Introduction ......................... 10-1  10.2 Ordering Replaceable Parts ....................10-1  10.3 Diagrams and Tables ......................10-2  10.3.1 Upper Half ......................
  • Page 13 Safety 1.1 Safety Information Please read and adhere to all warnings, cautions and notes listed here and in the appropriate areas throughout this manual. WARNING  Indicates a potential hazard or unsafe practice that, if not avoided, could result in death or serious injury.
  • Page 14 1.3 Cautions CAUTION  This device uses high pressure compressed gas. When attaching or disconnecting backup gas cylinders, always turn the cylinder valves slowly. Use the flow meters to bleed down the pressure, watching the cylinder gauge indicate the depleting cylinder pressure, before disconnecting the cylinder from the yoke.
  • Page 15 Theory of Operation 2.1 Electrical Part The hardware system of WATO EX-55/65 includes: mother board, power sub-system, main unit sub-system, display sub-system, gas parsmeters module sub-system, electronic flowmeter sub-system, pneumatic accessories, and others. The introductions of the modules are as follows: Mother board: connects to the related parts of cards and hardwares, and transfers related signals to corresponding cards and components.
  • Page 16 2.1.1 Outside Ports Series port for Network port USB port interconnection of devices Calibration port VGA port Name Located card Property Function online upgrade; Network port Main control board RJ-45 data outport Dual A type data outport; USB port Main control board receptacle connects to mouse Calibration port...
  • Page 17 2.1.2 Electrical Theory 2.1.2.1 Theory Diagram Auxiliary Fuse of auxiliary Standards of power Total Fuse electrical outlet electrical outlet Domestic standard M39-000207--- 009-005461-XX 010-000081-00 M07-00131F--- European standard M39-000208--- 009-005324-XX 010-000081-00 M07-00131F--- Board-to- Board-to- Card board cord 010-000081-00 M07-00131F--- American standard 009-000067-XX receptacle receptacle...
  • Page 18 2.1.2.2 Hardware Components List Cards list Description 051-001261-00 0631 Power board 051-000768-00 0623 Battery adapter board PCBA 051-001863-00 0625 Main control board PCBA 051-001996-00 0625 Ventilation protection board PCBA（Norgren） 0625 Ventilation control board PCBA 051‐003167‐00 051-002623-00 0625 Key control board PCBA 051-001260-00 0632 Encoder board PCBA 051-000415-00...
  • Page 19 Description 009-004711-00 0627 Top light board connection line 009-000977-00 0631 Indicator light connection line 009-001776-00 0631 System switch line 009-000066-00 NORGER pneumatic block connection line 009-004713-00 0625 Drive gas selector valve connection line 0621-20-78593 Switch (inside circuit) connection line 0601-21-78956 2Pin female socket integrative object 009-005644-00 0625 lighting board switch line...
  • Page 20 Description Note 9200-21-10633 2.25 speaker and connection line speaker Sensor Pressure transmitter 4000psi 012-000111-00 Pressure sensor 0.25% 2.1.3 Mother board The mother board is mainly used for the signal transfer of various boards and electrical components. Definition of mother board J1 (with monitoring module interface) Pin No.
  • Page 21 Pin No. Signal name Description TXD_VPM2 Sent signal of VPM series port (reserved) RXD_VPM2 Received signal of VPM series port (reserved) 12VA +12V power supply Ground Ground VPM_monitor_IO4 Status of drive gas selector valve Driving_O2_control Monitoring signal of drive gas selector valve 12VA +12V power supply Ground...
  • Page 22 Definition of mother board J2 (pneumatic assembly port) Pin No. Signal Name Discription VSAFE Safety valve power supply SAFE Safety valve control signal VXIQI Inspiration valve power supply XIQI Inspiration valve control signal VPEEP PEEP valve power supply PEEP PEEP valve control signal Qudongqiti_switch Drive gas pressure switch Ground...
  • Page 23 Pin No. Signal Name Discription Ground Definition of mother board J3 (display assembly port) Pin No. Signal Name Discription LCDVGA4+ Display differential signal LCDVGA4- Display differential signal LCD3V3 Display dedicated 3.3V power supply Ground LCDCLK+ Display differential clock signal LCDCLK- Display differential clock signal Ground LCDVGA3+...
  • Page 24 Pin No. Signal Name Discription Ground VBB_AutoFlowmeter 12V power supply for main and auxiliary CPU of EFCS _CPU flowmeter Ground Ground TXD_FLOW Sent signal of series port RXD_FLOW Received signal of series port ACGO_State2_CN No connection Ground ACGO_State1_CN No connection Ground ACGO+ No connection...
  • Page 25 No connection inside Ground Ground Ground Ground No connection inside Ground No connection inside No connection inside VGA_HSYNC VGA line frequency signal VGA_VSYNC VGA audio signal No connection inside Definition of mother board J9 (battery adapter board port) Pin No.  Signal Name  Discription ...
  • Page 26 Pin No.  Signal Name  Discription  Lithium battery 2, connected with thermistor signal NTC2 inside Lithium battery 1 input, connected to the anode of BAT1+ battery Ground Lithium battery 1 in-place signal. Low level indicates there is battery; high level indicates there is no battery Lithium battery 1 connected with thermistor signal NTC1 inside...
  • Page 27 Definition of mother board J11 (main control board port) Pin No. Signal Name Discription LCD3V3 LCD power supply Ground No connection inside No connection inside RXD_HW_OR_JH Received signal of infrared backpanel or patient monitor TXD_HW_OR_JH Sent signal of infrared backpanel or patient monitor Ground RXD_AG_232 Received signal of interior AG module...
  • Page 28 Pin No. Signal Name Discription VGA_Green VGA green signal VGA_Blue VGA cyan signal VGA_HSYNC VGA line frequency signal VGA_VSYNC VGA audio signal Ground RXD_POWER Received signal of power board series port TXD_POWER Sent signal of power board series port Ground RXD_FLOW Received signal of EFCS flowmeter series port TXD_FLOW...
  • Page 29 Pin No. Signal Name Discription LCDVGA4+ LVDS clock signal Ground Received signal of monitoring signal detection board RXD_VCM1 series port Sent signal of monitoring signal detection board series TXD_VCM1 port Ground RXD_VPM1 Received signal of auxiliary control module series port TXD_VPM1 Sent signal of auxiliary control module series port Ground...
  • Page 30 The power board can be divided into two parts: AC-DC, DC-DC. AC-DC part transforms the network source into 15.2V direct voltage. DC-DC part transforms the 15.2V direct voltage outputted by AC-DC part or lithium battery supply into several direct voltages needed by the system: 12V, 5.0V and 3.3V.
  • Page 31 Pin No. Signal name Description 10)   NTC1 Lithium battery 1, connecting to thermistor signal inside 11)   ground Heating wire drive voltage output (Range:12.42V to 12)   P15V 15.18V) 13)   HRT22 Pin 1 of heating wire thermistor 14)   HRT21 Pin 2 of heating wire thermistor 15)  ...
  • Page 32 Pin No. Signal name Description 39)   HRT11 Pin 2 of heating wire thermistor 40)   ground 41)   3.3V 3.3V supply valtage output (Range: 3.135V~3.465V) 42)   5.0V 5.0V supply valtage output (Range: 4.75V~5.25V) 43)   ground 44)   12V2 Second 12V supply valtage output (Range: 0V to 0.4V) 45)  ...
  • Page 33 Name Function NTC2 Thermistor inside battery Battery in-place signal Ground 2.1.4.3 Auxiliary Electrical Outlet Auxiliary electrical outlet comes from total AC mains inlet, and it is to supply the external devices of anesthesia machine. Declaration of Auxiliary Declaration Declaration of total current of Sales area electrical...
  • Page 34 South African standard 2-20...
  • Page 35 2.1.4.4 Others (heating module, fan, lithium battery) Heating module, fan and lithium battery are also inside the anesthesia machine. Heating module, drived by power board, offers temperature protection for software and hardware. The mechanism of heating is: power board heats thermistor up to 90℃ with full power, and then heats thermistor back to 70℃...
  • Page 36 J7, connect to EFCS J6,connect to auxiliary encoder lighting board J5, connect to J4, connect touchscreen to encoder J1, connect to mother board J3,connect to screen J2,connect to backlight port alarm light board Definition of key control board J1 (port connected with mother board) Pin No.
  • Page 37 Pin No. Signal Name Discription 18)   Ground 12VA 19)   12V supply 20)   Ground Definition of key control board J2 (port connected with alarm light board) Pin No. Signal Name Discription 12VA   12V supply   Ground   SDA_CPU Main control board IIC data signal  ...
  • Page 38 Definition of key control board J6 (port connected with auxiliary lighting board) Pin No. Signal Name Discription   12VA_AUX_Light Light board, 12V supply   Ground Definition of key control board J7 (port connected with EFCS flowmeter) Pin No. Signal Name Discription 5V_Touch_screen 5V supply...
  • Page 39 Definition of alarm light board J1 Pin No. Signal Name Discription   12V supply   Ground   Main control board IIC data signal   Main control board IIC data signal   3.3V supply 2.1.5.4 Encoder Board User can rotate it to left or right, or press it down. Definition of encoder board J1 Pin No.
  • Page 40 2.1.6 Control System 2.1.6.1 Main Control Board Main control board is the main control component of human-machine interaction in anesthesia machine. It drives the displays (including external display with VGA port) and speaker, and exchanges data with monitoring module, flowmeter control board, key control board, and infrared communication board through series ports.
  • Page 41 Pin No. Signal Name Discription   Main control board 5V supply   Main control board 5V supply   Ground   Ground   Main control board 3.3V supply   Main control board 3.3V supply   Ground 10)   FAN_STATE1_IN Fan status signal 1 11)  ...
  • Page 42 Pin No. Signal Name Discription 36)   USB1 data signal + 37)   USB1 data signal - 38)   Ground 39)   USB0 data signal + 40)   USB0 data signal - 41)   VCC_USB1 Power supply of USB1 42)   Ground 43)  ...
  • Page 43 Pin No. Signal Name Discription 67)   RSVD_IN1_IN Backup detection signal 68)   FAN_PWM2_OUT Fan control signal 2 69)   FAN_PWM1_OUT Fan control signal 1 70)   RSVD_OUT1_OUT Safety valve control signal 71)   TPPWR_CTRLOUT TouchPad supply control signal 72)   Ground 73)  ...
  • Page 44 Definition of main control board J4 Pin No. Signal Name Discription   No connection inside   RS-232 received   RS-232 sent   No connection inside   Ground   No connection inside   No connection inside   No connection inside   No connection inside Definition of main control board J8 Pin No.
  • Page 45 2.1.6.2 Monitoring Module Monitoring module monitors pressure and flow of anesthesia machine and breathing system, controls valves, monitors and collects statuses, reads O2 concentration, monitors pressure and flow in circuit, and control accuracy accurately. Monitoring module contains VCM and VPM. VCM monitrs the parameters including inspiratory flow, expiratory flow, interior flow of the machine, airway pressure, PEEP, O2 concentration, etc, and controls the actions of three-way valve and exhalation valve (including safety valve, PEEP valve, and inspiration valve).
  • Page 46 Definition of VCM J1 Pin No. Signal Name Discription   Sent signal by series port   Received signal by series port   ＋12V power supply   Ground 2-32...
  • Page 47   Ground   ＋12V power supply   PRST Safety valve control signal   ＋5V power supply Definition of VCM J5 Pin No. Signal Name Discription   sent signal by series port   Received signal by series port   Ground   ＋12V power supply Definition of VCM J6 Pin No.
  • Page 48 2-34...
  • Page 49 Definition of VPM J2 Pin No. Signal Name Discription   Ground   Ground   12V power supply of exhalation valve Definition of VPM J4 Pin No. Signal Name Discription   VSAFE 7V power supply of safety valve   SAFE Safety valve control signal  ...
  • Page 50 Definition of VPM J10 Pin No. Signal Name Discription Ground CO2_SWITCH CO2 absorbent canister switch signal Ground Ground HUILU_SWITCH Circuit switch signal Ground Definition of VPM J15 Pin No. Signal Name Discription Ground Ground Reserved switch monitor signal 1 (AD) Ground Ground Ground...
  • Page 51 2.1.7 EFCS flowmeter system 2.1.7.1 EFCS VCM The EFCS VCM is the core control component of the EFCS on the anesthesia machine. The EFCS VCM controls the oxygen, nitrous oxide and air flow by regulating the proportional valves, and monitors and feeds back the oxygen, nitrous oxide and air flow by using a flow sensor. In addition, the EFCS VCM can identify the switch of the backup flowmeter system and control the backlight.
  • Page 52 Definition of EFCS VCM J1 Pin No. Signal Name  Description VPM_VPP Auxilliary CPU power supply Ground VCM_VPP Main CPU power supply Ground PRO_VALVE_VPP 12V power supply for proportional valve Ground Not connected Ground Sent signal by communication serial port of the main VCM_TX_GUI control board Ground...
  • Page 53 VDDB Sensor signal conversion pin Ground Ground DVCC Sensor power supply SCL _O2 I2C clock signal Sensor signal conversion pin SDA_O2 I2C data signal SCL_BALANCE I2C clock signal DVCC Sensor power supply SDA_BALANCE I2C data signal Sensor signal conversion pin Ground Ground DVCC...
  • Page 54 Definition of flowmeter control board J1 Pin No. Signal Name Description Not connected Ground Key signal Ground 2.1.8 Gas parameter system 2.1.8.1 Infrared communication board Infrared communication board offers power supply to module rack module, and receives parameters monitored by AG module, CO2 module and BIS module, and then send these parameters to main control board through series port.
  • Page 55 Definition of infrared communication board J2 Pin No. Signal Name  Description 12V power supply 12V power supply Ground Ground 3.3V power supply 5V power supply(IO pull power supply) Ground Ground Definition of infrared communication board J4 Pin No. Signal Name  Description INTERFACE_TX0 Sent signal of infrared communication board...
  • Page 56 Definition of top light board J2 (three-level switch port) Pin No. Signal Name Discription   Low-light level   Low-light level       High High-light level   High High-light level Definition of top light board J3 (speaker port) Pin No. Signal Name Discription  ...
  • Page 57 2.1.9.3 Flowmeter Backlight Board Flowmeter backlight board is to light the auxiliary flowmeter and backup flowmeter. The backup flowmeter is controlled by the top light board switch. When the switch of top light board is set to ligh-light level or low-light level, the auxiliary light lights; otherwise, the auxiliary light is out. The backup flowmeter is controlled by the EFCS VCM.
  • Page 58 2.1.9.4 Indicator Board Indicator board supports the functions of AC power indicator and battery indicator. Indicator board (Top) Indicator board (Bottom) Definition of indicator J1 Pin No. Signal Name Discription Note High level: [2.5，3.5]V   LED_BAT Battery indicator drive signal Low level: [0~0.4]V High level: [2.5，3.5]V AC power indicator drive...
  • Page 59 2.2 Pneumatic Part 2.2.1 Pneumatic Circuit Diagram 2-45...
  • Page 60 2.2.2 Pneumatic Components and Symbles 2.2.2.1 Pneumatic Components The series numbers of components correspond with the number in the above pneumatic circuit diagram. SN Name SN Name O2 P- Line Inspiratory flow sensor O2 cylinder Expiratory flow sensor Air P- Line O2 sensor Air cylinder Scavenging reservoir and muffler...
  • Page 61 2.2.2.2 Key to Symbols Filter Regulator Pressure Gauge Check Valve Gas Supply Pressure Relief Valve Connector Flow Meter Flow Control Valve Pressure Switch Flow Restrictor 2-47...
  • Page 62 2.2.3 Gas Supplies 2.2.3.1 Pipeline Supply System 8 Pressure relief valve Pressure sampling pipe N2O pipeline of N2O supply inlet supply 8 Pressure Pressure relief valve sampling pipe of O2 supply 23 Pressure switch O2 pipeline 24 Regulator supply inlet 8 Pressure relief valve 23 Pressure switch...
  • Page 63 Backup O2 supply O2 pipeline (without backup cylinder) supply inlet assembly Drive gas Air pipeline Needle valve supply inlet assembly Needle valve N2O pipeline supply inlet assembly The above are three pipeline gas supplies, O O and Air, which functions to introduce the external pipeline gases into the machine.
  • Page 64 2.2.3.2 Backup Supply System 7 Regulator Pressure sampling pipe Check valve of cylinder The above are three inlet assemblies of backup cylinder supplies, O O and Air, which functions to introduce the external cylinder gases into the machine. Cylinder gas supplies, which are O , Air and N O, go into the system through cylinder connectors 2, 4 and 6 respectively.
  • Page 65 2.2.4 Anesthetic Gas Delivery System 2.2.4.1 System Switch Assembly inching switch Air inlet O2 inlet O2 outlet inching switch Air outlet There are two kinds of systwm switch, single O2 system switch, and O2 and Air system switch. The above figure shows the O2 and Air system switch. Supply gases of Air and O2 go into system switch 22, and then needle valve.
  • Page 66 2.2.4.2 Electronic Flow Control System-EFCS O2 (from the N2O (from Air (from the O2 supply) the N2O air supply) supply) From backup O2 flowmeter Balance gas sensor Total flow sensor O2 sensor To the vaporizer manifold The EFCS uses solenoid proportional valves to control the oxygen, air and nitrous oxide flow and monitor the actual flow, and provides feedback to the flow control unit.
  • Page 67 2.2.4.3 Flow Control System-BFCS O2 outlet O2 inlet BFCS offers 200KPa O2 displayed through the glass tube electronic flowmeter and delivered to patients after passed through the system switch. Turning flow controls counter-clockwise increases the flow and clockwise decreases the flow, with the basic flow rate of 0.75-1.25L/min. 2-53...
  • Page 68 2.2.4.4 Vaporizer Manifold Double vaporizer manifold Single vaporizer manifold There are two kinds of vaporizer manifold, double vaporizer manifold and single vaporizer manifold. The anesthetic gas delivery device (vaporizer) is connected to the anesthetic gas delivery system. The mixed gas of N2O, O2 and Air go into the device and the fresh gas containing these three gases and anesthetic agent is finally outputted to the ACGO assembly.
  • Page 69 2.2.4.5 ACGO Assembly Enter breathing system ACGO outlet The above picture shows the ACGO assembly. The ACGO assembly includes flow restrictor 21, pressure relief valve 31, and pressure relief valve 55. Inputted O2 and fresh gas are mixed and enter the ACGO. Pressure relief valve 31 at the front restricts the pressure of inputed O2 and also that of the fresh gas not to exceed 37.9 kPa.
  • Page 70 The above picture shows the O2 flush button assembly. When O2 flush valve 20 is depressed, O2 rushes into the pneumatic circuit which is cut off when this valve is released. The O2 supply gas at 0.2 MPa after regulated goes through the O2 flush valve, the ACGO assembly, and into the breathing system.
  • Page 71 2.2.5 Breathing System 2.2.5.1 Overview The breathing system provides a closed loop for the anesthetic gas. The CO2 in the patient’s expired gas can be inspired in the inspiration phase to maintain the temperature and humidity conditions of the patient’s exhaled gas. During inspiration, the drive gas depresses the bag inside the bellows or the doctor presses manual bag to force the inside gas to enter the patient’s lung.
  • Page 72 43. APL valve 41. Manual/auto switch Bag arm 45. Bellows assembly 33. Inspiratory valve 36. Expiratory Patient connection (built-in valve 47. Airway inspiratory and expiratory pressure gauge flow sensors 37 and 38) 35. Built-in BYPASS valve 34. CO2 absorbent canister Handle In case of mechanical ventilation, during inspiration, gas flows through manual/auto switch 41, BYPASS valve 35 or sodalime canister 34, inspiratory valve 33, O2 sensor 39, airway pressure...
  • Page 73 2.2.5.2 Mechanical Ventilation The breathing system is in mechanical ventilation by switching manual/auto switch to auto position, as shown in the following figures. During inspiration, gas in the bellow flows through manual/auto switch 41, BYPASS valve 35 or sodalime canister 34, and then is mixed with the fresh gas and continue to flow through inspiratory valve 33, O2 sensor 39, airway pressure gauge 47, and inspiratory flow sensor 37 to the patient.
  • Page 74 To AGSS Drive gas Gas breathed out by the patient A. Manual inspiration mode B. Manual expiration mode 2.2.5.4 Gas Bench connector The sample gas, collected by AG module from the patient end, reenters to the breathing circuit through the CPC connector with self closing function, shown as the above figure. 2.2.5.5 O2 Sensor sensor O2 sensor, installed on the inspiration limb of the breathing circuit, monitors the O2 concentration...
  • Page 75 2.2.5.6 Anesthesia Calculation Module (If Available) AG module installation position Anesthesia calculation module (44, AG module), collecting the sample gas from patient, monitors and calculates anesthesia concentration and CO2 concentration. When the anesthesia concentration or CO2 concentration of the patient end is too high, an alarm will be triggered. 2.2.6 Pneumatically-Controlled Module of Anesthetic Ventilator The pneumatically-controlled module of the anesthetic ventilator provides drive gas for the patient...
  • Page 76 The following figure shows the pneumatic circuit diagram of the pneumatically-controlled module of anesthetic ventilator. Enter the bellow Drive gas assembly Enter gas reservoir As shown in the above figure, in the drive gas limb, the filter 9 filters drive gas again. The regulator 10 regulates pressure (about 0.2 MPa) inside the pneumatic circuit.
  • Page 77 The AGSS transfer system is a clear tube with 30 mm purple conical connectors at both ends, a female 30 mm conical connector as the inlet and a male 30 mm conical connector as the outlet. The transfer system is connected to the receiving system through the male 30 mm conical connector.
  • Page 78 2.2.10 Drive Pressure - High Pressure Regulator (200 kPa, 29 psi) The drive pressure regulator stabilizes the supply pressure upon the proportional valve. The flow generated by the proportional valve is therefore independent of pressure variations at the supply. Setting the drive pressure regulator at 200 kPa (29 psi) allows for a maximum of inspiratory flow of 110 L/min at the ventilator.
  • Page 79 Installation Guide 3.1 Preparation Before installation, contact the consumer and tell him/her to provide the following materials. The customer is responsible for supplying these materials. Missing items may result in delays, incomplete installations, and/or additional service visits.  Gas supply hose connector. ...
  • Page 80 Both the carrier and the receiver must sign his name and date on the bill of lading or air waybill. Save all damaged delivery package until further information is given by Mindray. The receiver must contact Mindray Customer Service Department immediately.
  • Page 81 Lift the packing box and remove it from the top of the equipment. Remove the foam from the top of this device. Cut the plastic straps as shown below. Pull down the plastic bag from the equipment.
  • Page 82 Cut the plastic straps close to the back of this device. Take care not to scratch or damage the equipment. Remove and discard the plastic straps. Remove the empty box on the equipment bench. Remove the foam from the display and bench. Use scissors to cut the two flexible packing straps attached to the base of the packing box platform.
  • Page 83 10. Remove the wood from the front of this device. Remove the foam and packing material from around the front of the equipment. 11. Remove the foam and packing material from around the back the equipment. 12. Place the packing box cover beside the wooden box base, using as the slope for pushing the equipment onto the floor, as shown below.
  • Page 84 13. Rotate the casters for 90°. Then push this device gently to roll it down the slope. Remove the packing box on the equipment. Keep the packing box in case that this device needs re-packing. 14. Open the packing box and take out the patient circuit and bag arm assembly. 15.
  • Page 85 18. Place the bellows housing downward onto the patient circuit. Then rotate it clockwise to fix it at proper position (the scale marks on the bellows housing shall be placed forward for the convenience of being seen by the operator). 19.
  • Page 86 20. Push the bag arm assembly into the breathing system and tighten the fixing nut as shown below. 21. Open the packing box and take out the detachable absorber canister assembly, waste gas scavenging system hose, and waste gas scavenging assembly gently. 22.
  • Page 87 23. Fill Pre-pack or loose fill CO2 absorbent into the canister. Slide the canister into the canister assembly. Rotate the lock bar anticlockwise for 90° to fix the canister at the proper position. 24. Slide the scavenging assembly into the rail at the left bottom of this device (namely, the same side with the breathing system assembly).
  • Page 88 Do not connect, disconnect, or move the breathing circuit or bag during selftest. 34. Install the patient monitor and arm according to the instructions in the monitoring kit. WARNING  Use only Mindray approved patient monitor and arm for this device. 3-10...
  • Page 89 35. Put the following parts into the bottom drawer: Operator’s manual   Sealing washer (P/N: 0348-00-0185) 36. Hang the user guide onto the handle of this device. Take the following steps to install the anesthesia machine with an air compressor. Loosen the six screws fixing the rear panel of the cart, remove the gas hose, and take out the rear panel.
  • Page 90 Loosen the five screws fixing the upper cover of the air compressor from behind, pull out the upper cover assembly of the air compressor from the front, remove the cable materials and pipelines connected to the upper cover, and take out the upper cover. Use an inner hexagon screw driver to loosen the two transport protection screws fixing the air pump.
  • Page 91 Fix the two transport protection screws on the positions as shown in the following figure. Inner hexagon screw driver Transport protection screw Install the two leakproof sponges where transport screws were. Leakproof sponges 3-13...
  • Page 92 7. Insert the air pump into the power socket. Air pump power socket Close the upper cover by two thirds from the front of the air compressor along the guide groove, connect the gas hose of the pressure gauge and indicator plug, push the upper cover to the proper position, tighten the five screws in the rear, and stick the three safety stickers to the positions circled in black, as shown in the following figure.
  • Page 93 10. Install the drawer on the cart. Front panel of the air Drawer compressor 11. Put the rear panel of the cart behind the cart, connect the gas hose, fix the rear panel with six screws, and stick two safety stickers to the positions circled in black. Connect the gas hose 12.
  • Page 94 13. Connect the compressed air hose to the air outlet of the filter at one end and to the air source inlet at the other end. Connect the Fixing plate of the compressed power cord air hose 3-16...
  • Page 95 3.2.2 Breathing System, Breathing System Accessories and Checkout Procedures Breathing system 2. AGSS transfer tube AGSS 4. CO2 absorbent 5. O2 sensor and cable 3.2.3 AGSS Connections Take out the AGSS from the foam and plastic bag. Install the AGSS onto this device via the GCX compatible rail system. Connect the AGSS transfer tube between the AGSS inlet port and this device exhaust port.
  • Page 96 3.2.3.1 Cylinder Wrench and User Guide Fix the cylinder wrench onto the back of this device so that it can be used to open or close cylinders without disconnecting from the machine. Hang the user guide on the device handle. 3.2.4 Vaporizer WARNING ...
  • Page 97 Align the vaporizer over the valve cartridges of the mounting bar. Hang the vaporizer on the mounting bar as shown below. Note that the locking handle is in the unlocked position. Locking handle in the unlocked position Rotate the locking handle clockwise to the locked position as shown below. Locking handle in the locked position 3.2.4.1 Assemble the Vaporizer...
  • Page 98 When reinstalling the vaporizer, lift each vaporizer straight up off the manifold rather than pulling forward. Do not rotate the vaporizer on the manifold. If a vaporizer unintentionally lifts off the manifold, install it again and complete steps 1 through 3. If the vaporizer lifts off a second time, do not use the system. NOTE ...
  • Page 99 NOTE  This device should use vaporizers with Selectatec mounting system that are compliant to ISO8835-4. Refer to the vaporizer manufacturer’s Instructions For Use for filling or draining the vaporizer and other information. 3.2.5 Cylinder Installation Remove the cover from a new O2, N2O, and AIR cylinder. Mount one cylinder at a time onto the rear of the anesthesia machine.
  • Page 100 3.2.7 Monitoring Products Mounting and Electrical Connection (optional) Mount the monitor (if available) according to the manufacturer’s monitor assembly instructions. NOTE  Use of other monitor and mounting hardware is performed by the installer. After mounting a monitor to this device, connect it to one of the AC outlets located on the rear of this device.
  • Page 101 Testing WARNING  After servicing the equipment or replacing its components, complete all the tests in this section.  Before doing the tests in this section, completely reassemble the equipment and refer to 6 Device Maintenance to do necessary calibrations. 4.1 System Inspection NOTE ...
  • Page 102 4.2 System Self- Test When the system is powered on, it performs a self-test to ensure its alarm system (alarm LED, speaker, and buzzer) and hardware (flowmeter board, ventilator board, assistant ventilator board, power board, and CPU board) are properly functioning. System Self-test Sequence Comments 1.
  • Page 103 4.3 Leak and Compliance Tests NOTE  Perform leak test after maintaining the anesthesia machine, replacing parts, or reconnecting tubes. 4.3.1 Automatic Circuit Leak and Compliance Test If the system is being powered on, the system automatically initiates a self-test and enters the Automatic Circuit Leak and Compliance Test screen.
  • Page 104 4.3.2 Manual Circuit Leak Test This test checks if the pneumatic circuit has leakage in manual ventilation mode. The test items include APL valve, check valve, CO2 absorber canister, patient tube, flow sensor, and flow sensor connector. The respiratory system leak test under manual ventilation mode shall be performed following the steps below: If the system is being powered on, the system automatically initiates a self-test and enters the Manual Circuit Leak and Compliance Test screen.
  • Page 105 4.3.3 Troubleshooting—Leak Test The following table lists the commonly-encountered problems and recommends actions for breathing system leak test in mechanical ventilation mode. Fault Description Possible Cause Recommended Action Leak test failure is The Auto/Manual switch is set to the Set the Auto/Manual switch prompted immediately Manual position and the message [Manual to the Auto position.
  • Page 106 4.4.2 N2O Pipeline Supply Test NOTE  Remove the N2O cylinder from the yoke before performing this test. Connect the machine to the O2 and N2O supply connectors on the wall via O2 and N2O supply hoses. Check that the O2 and N2O supply pressure gauges read 280 to 600 kPa. Turn on the system switch.
  • Page 107 4.5.2 N2O Cylinder Supply Test Remove the N2O supply hose from the gas inlet assembly. Mount the backup cylinder full of N2O on the backup cylinder yoke. If necessary, place a new clean washer between the cylinder and cylinder yoke to minimize leakage caused by yoke connections.
  • Page 108 NOTE  For Alicat, read the mass flow, that is, SLPM value.  A systematic deviation exists between the test value obtained using Alicat and the full electronic flowmeter control value. Therefore, the actual acceptance criterion is the set value divided by 0.983. ...
  • Page 109 4.7.2 Checking Needle Valve Correspondence Perform the following operations in the BFCS state: Turn the O2 needle valve and verify that the flow on the total flowmeter continuously increases from about 1 L/min to about 10 L/min. Turn off the O2 needle valve. The flow should decrease to about 1 L/min (that is, only the basal flow is reserved).
  • Page 110 Set the flow controls to mid range. Check that the flowtube float moves smoothly and that the electronic flowmeter displays normally. Test the Link system with N2O flow increasing: a. Turn the O2 and N2O flow controls fully clockwise (minimum flow). b.
  • Page 111 4.8.2 With O2 Sensor Do as described in 4.12.2Test the O2 Concentration Monitoring and Alarms before testing.To do the flow control system tests: Connect the pipeline supplies or slowly open the cylinder valves. Turn all flow controls fully clockwise (minimum flow). Set the system switch to the position.
  • Page 112 4.9 Vaporizer Test 4.9.1 Vaporizer Interlock Test Attach two vaporizers to the vaporizer manifold and lock them in place. Rotate one vaporizer dial to 3%. Verify that the other vaporizer dial is disabled. Set both vaporizer dials to 0. Rotate the other vaporizer dial to 3%. Verify that the first vaporizer dial cannot be rotated.
  • Page 113 4.9.3 Vaporizer Accuracy Test Set the APL valve to 70cmH2O. Put the Auto/Manual switch to the Manual position. Connect one end of the breathing hose to the expiration port and the other end to the bag arm. Connect the sampling tee of the gas analyzer to the inspiration port. Use a breathing hose to connect the output end of the sampling tee to the scavenging system.
  • Page 114 NOTE  The vaporizer has deviations due to change of barometric pressure (high altitude). And the Riken F-211 gas analyzer also has deviations. When testing the vaporizers using the Riken F-211 gas analyzer, the altitude can be ignored as the deviations cancel each other out.
  • Page 115 10. Release the quick oxygenation button. Observe the pressure gauge and ensure that the pressure will not decrease. 11. Turn off the vaporizer. 12. Repeat steps 6 to 11 for the other vaporizer. 4.10 Other Functional Tests 4.10.1 Drive Gas Switching Function Test NOTE ...
  • Page 116 Reading of auxiliary O2 VT-PLUS supply flowmwter 2 L/min 1.5~2.5 L/min 10 L/min 9~11 L/min 15 L/min 13.5~16.5 L/min 4.10.3 O2 Flush Test 4.10.3.1 In Mechanical Ventilation Mode Connect the O2 pipeline supply or cylinder. Set the bag/vent switch to the mechanical ventilation position. Set the system to standby or working status.
  • Page 117 4.10.4 ACGO Function Tests 4.10.4.1 ACGO Switch Alarm Test NOTE  It is no need to do this test for the device which do nou configure with ACGO. Exit Standby mode. Turn the ACGO switch to the position of ACGO. The icon of ACGO appears on the ventilation mode area on the screen.
  • Page 118 a. Turn the top cover counterclockwise to separate it from the sight glass. Remove the filter screen. b. Shake dust and foreign substance from the removed filter screen until satisfactory clean effect is achieved. The waste gas disposal system is not working or the pump rate is less than the AGSS normal working flow.
  • Page 119 Hose and connector Sealing ring If any damage or loose connection is detected, replace the corresponding part. 4.10.6 Negative Pressure Suction Inspection 4.10.6.1 Check the Tube Connections of Liquid Collection Bottle Check if the tubes are correctly connected following the connection diagram printed on the liquid collection bottle.
  • Page 120 c. Occlusion can occur after the filter is used for a long time. Replace the filter and do the test again. If the negative pressure suction device is without Venturi, step 1 and step 3 is no need. 4.11 Breathing Circuit Tests 4.11.1 Check Valve Test WARNING ...
  • Page 121 4.11.2 Bellows Test Set the system to Standby. Set the Bag/vent switch to the mechanical ventilation position. Set all flow controls to minimum. Connect the Y piece on the breathing tube to the leak test plug to occlude the outlet of the Y piece..
  • Page 122 Push the O flush button to let the pressure fall between 25 and 35 cmH2O on the airway pressure gauge. Select [Continue] to start manual leak test. 10. When the manual leak test is completed, the screen for manual leak test result is switched to automatically, prompting the manual leak test result.
  • Page 123 4.11.3.4 Definitions of Error Information during Breathing System Leak Test in Manual Ventilation Mode During the leak test, many abnormal factors or operations may result in breathing system manual circuit leak test failure. The following table lists the definitions of various abnormal factors. If the breathing system leak test fails, the relevant error code will be recorded in the service logbook.
  • Page 124 NOTE the test, you must select [Continue] to start the leak test again. To do the breathing system leak test in mechanical ventilation mode: To do the breathing system leak test in mechanical ventilation mode: Make sure that the system is Standby. If not, press the key and select [Ok] from the pop-up menu to enter Standby.
  • Page 125 NOTE  In case of leak test failure, check all of the possible leak sources, including bellows, breathing system tubes and CO2 absorbent canister. Check that they are correctly connected and their connectors are not damaged.  If there is indeed a leak, check the pneumatic circuit system for leakage and troubleshoot the problems as described in section 8.3 Leak and Compliance Tests.
  • Page 126 Failure description Possible cause Recommended action the safety valve is damaged, After the leak test, Control of safety valve by the replace the safety valve. If the the alarm of [PEEP monitor board fails. safety valve is in good condition, it Safety Valve Failure] indicates that the auxiliary control occurs.
  • Page 127 NOTE  In case of leak test failure, check the machine for leakage and roughly assess the amount of leakage by using the following methods.  Method 1: In the default VCV mode, stop fresh gas supply. If the bellows rises to the top each time, it indicates that the machine is not leaky.
  • Page 128 4.11.6.2 O2 Concentration Test 21% O2 concentration test: Put the O2 sensor unit with O2 sensor in the air. Observe the display value of O2 concentration on the screen; confirm it is within the range of 21% to 24%. 100% O2 concentration test: Set the O2 flow to 8L/min, and press O2 Flush button, to make the circuit to fill with 100% O2 as soon as possible.
  • Page 129 Figure 3 (withoutBYPASS) Figure 4 (with BYPASS) 4.12 Alarm Tests 4.12.1 Prepare for Alarm Tests Connect a test lung or manual bag to the Y piece patient connection. Set the Bag/vent switch to the position. Set the system switch to the position.
  • Page 130 4.12.2 Test the O Concentration Monitoring and Alarms NOTE  This test is not required if O sensor is not configured. Set the Bag/vent switch to the position. Remove the O sensor and make sure that the sensor measures approximately 21% O room air.
  • Page 131 4.12.6 Test the High Paw Alarm Set the Bag/vent switch to the position. Select [Alarm] and then [Limit]. Set the PEAK low limit to 0 cmH O and PEAK high limit to 5 cmH Make sure that a high Paw alarm occurs. Set the PEAK high limit to 40 cmH Make sure the high Paw alarm cancels.
  • Page 132 4.12.10 O2 Supply Failure Alarm Test Connect the O2 supply inlet with fixture O2. Adjust the O2 flow to 10L/min in Standby mode. Adjust the input pressure of O2 supply to 220.6±34.2kPa. Confirm whether there is an audio alarm of O2 Supply Failure. Stop the O2 supply for one (1) minute, this alarm should not disappear.
  • Page 133 Set the APL valve to 15cmH2O。 Set the air flow to 5 L/min using the flow control valve. Adopt O2 flow if there is no air flow. Squeeze the breathing bag once every 10 seconds to expand and contract the test lung, and generate a pressure about 20cmH2O.
  • Page 134 10. Verify that the tidal volume displayed on the anesthesia machine is within 7% (±42 mL) of the set value within approximately the first 1 minute after ventilation starts. 11. Verify that the measured O2 concentration is at least 97% after 5 minutes 12.
  • Page 135 4.13.6 PCV Adult Ventilation Mode Test Attach a breathing circuit and breathing bag. NOTE  For testing purposes always use a reusable breathing circuit. Attach an adult test lung to the Y-piece of the breathing circuit. Attach a ventilation tester between the expiratory port and the breathing hose. Set the O2 flow to 3 L/min and disable the N2O or air flow rates.
  • Page 136 Trigger breaths by slightly squeezing the test lung and releasing. Maintain a continuous breath rate. Verify that a pressure waveform and all ventilation parameters appear on the screen. Verify that the peak pressure read on the display is within ΔP + PEEP ±2. 10.
  • Page 137 The second column is the zero point of the current sensor and the third column is the zero point in case of factory calibration. The following table lists the normal range of the zero point of A7 pressure and flow sensors.
  • Page 138 To check the measurement accuracy of flow sensors, perform the following operations: Remove the bellows and water collection cup. The pneumatic connections between the anesthesia machine and calibration device are as shown in the following picture. You can connect the tube to a high-flow connector or low-flow connector based on the requirements.
  • Page 139 Gas Settings: Press the Setup button, select Setting->ENTER->Gas Settings->MODIFY->Gas Type->O2. Select BACK->BACK-> BACK. 4-39...
  • Page 140 When the system is standby, select Main-> Service-> Diagnostic Tests->Valves to access the following menu. Set Safety Valve to On. Set PEEP Valve Pressure to 30 cmH2O. Set Insp Valve Flow to the following values: (3±0.5)L/min, (10±1)L/min, (20±1)L/min, (30±2)L/min, (60±3)L/min Make sure that the deviation between the measured data of the inspiratory flow sensor, expiratory flow sensor and ventilator flow sensor and that of the anesthesia machine calibration device must not exceed 1 L/min or 5% of the measured value of the calibration device, whichever is greater.
  • Page 141 4.14.3 Constant Pressure Test (Checking the Pressure Sensor Accuracy) NOTE  Generally, measurement deviations seldom occur to pressure sensors. However, in case that the ventilator control board, solenoid valve assembly, or expiratory valve assembly needs to be replaced, you must perform pressure calibration and check the pressure sensor accuracy so as to confirm the effectiveness of calibration.
  • Page 142 4-42...
  • Page 143 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. 4-43...
  • Page 144 Gas Settings: Press the Setup button, select Setting->ENTER->Gas Settings->MODIFY->Gas Type->O2. Select BACK->BACK-> BACK. 4-44...
  • Page 145 When the system is standby, select Main-> Service-> Diagnostic Tests->Valves to access the following menu. Set Safety Valve to On. Set PEEP Valve Pressure to the following values: (5±1)cmH2O, (20±1)cmH2O, (50±1)cmH2O, (70±2)cmH2O, (90±2)cmH2O Make sure that the deviation between the measured data of the PAW sensor, PEEP pressure sensor and that of the anesthesia machine calibration device must not exceed 1 cmH2O or 2% of the measured value of the calibration device, whichever is greater.
  • Page 146 4.14.4 Total Flow Sensor Self Test NOTE  Perform this test after sensor calibration if the total flow sensor is replaced. Turn on the O2 and N2O supplies, and ensure that O2 and N2O are within the normal input pressure range. If the system has been powered on and N2O has been adjusted, power off and then on the system to ensure that the system is in the initial startup state.
  • Page 147 4.15.3 Electrical Safety Inspection Test Perform protective earth resistance test: a. Plug the probes of the analyzer into the protective earth terminal and equipotential terminal of the AC power cord. b. Test the earth resistance with a current of 25 A. c.
  • Page 148 Single Fault ____μA condition(SFC) Mains on Applied Part Leakage ____μA Max:5000μA Normal ____μA condition(NC) Patient Max: Auxiliary NC: 100μA Current SFC: 500μA Single Fault ____μA condition(SFC) For periodically performance, 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 main unit disassembled.
  • Page 149 Factory Maintenance Menu 5.1 Calibration The calibration screen includes [Flow Sensors], [Pressure sensors], [Zero Sensors], [O2 Sensor], and [Total Flow Sensor] calibration buttons. When the machine is configured with an AG module that has the paramagnetic oxygen module, the machine uses the paramagnetic oxygen module rather than the O2 sensor to monitor the oxygen concentration.
  • Page 150 The [Flow Sensors], [Pressure Sensors], [O2 Sensor], and [Total Flow Sensor] buttons are available only in standby mode. The [Zero Sensors] button is always available. During the calibration or zero calibration process, when you close the calibration or zero menu, the relevant calibration or zero calibration process stops.
  • Page 151 The VCM screen can monitor the measured values of flow sensors sand pressure sensors in real time, the power supply voltage and opening of valves, the power supply voltage of the ventilator, the status of three way valve etc. The following figure shows the screen display of VCM A/D channel data: When the actual value in the table is displayed in red, this value exceeds the reference range provided in the table.
  • Page 152 The VPM screen can monitor the measured values of pressure sensors and flow sensor, the power supply voltage and opening of valves, and the power supply voltage of the ventilator in real time. The following figure shows the screen display of VPM A/D channel data: When the actual value in the table is displayed in red, this value exceeds the reference range provided in the table.
  • Page 153 The Mainboard screen can monitor the fan speed of hardware box and module rack. The following figure shows the screen display of mainboard A/D channel data: 1) [Fan Speed] monitors the fan speed of the hardware box. 2) [Fan Speed 2] monitors the fan speed of the module rack. When the actual value in the table is displayed in red, this value exceeds the reference range provided in the table.
  • Page 154 The Power System screen displays the battery voltage and power supply voltage collected by the power system in real time, and the voltage and temperature of the heating module. The following figure shows the screen display of power system A/D channel data: When the actual value in the table is displayed in red, this value exceeds the reference range provided in the table.
  • Page 155 The Calibration Sensor screen can be accessed to check the calibration table data of valve, sensor, and O2 concentration. The sensors include pressure sensor and ventilator flow sensor. The following figure shows the screen display of the calibration data of each sensor:...
  • Page 156 The Zero Sensor screen can be accessed to check the zero point the sensor currently uses and the zero point the zeroing table saves. The following figure shows the screen display of the zero data of each sensor:...
  • Page 157 The Trends screen can be accessed to check the changing trend of such monitoring parameters as pressure, tidal volume, resistance, and compliance within a period of time. The following figure shows the screen display of trends:...
  • Page 158 The Status Monitor screen can be accessed to check all status information, including gas supply, Auto/Manual switch, ACGO switch, type of flow sensor and drive gas switch valve etc. The following figure shows the screen display of Boolean value: 5-10...
  • Page 159 The Flow Control System screen can be accessed to check the voltages of all valves, board voltage of the EFCS flowmeter, voltage and flow of the protection module of the EFCS flowmeter. The following figure shows the screen display of the flow control system: 5-11...
  • Page 160 The FCS status monitoring screen can be accessed to check the flowmeter version as well as the control status and monitoring status of the FCS valves. The following figure shows the screen display of FCS status monitoring: 5-12...
  • Page 161 5.3 Valves Diagnostic Test Tools The diagnostic function is available only in standby mode. The diagnostic function includes valves test, inspiratory valve test, PEEP valve test, and safety valve test. During the test, when you click the [Done] button in the [Diagnostic Tests] menu, the system returns to the [Service] menu, and the relevant test stops.
  • Page 162 For the anesthesia machine configured with the function of Drive Gas Auto Switch, there will be a [Drive Gas Valve] button added under the [PPEP Valve D/A] button in this menu. After setting relevant items, check the A/D value and actual value in the valve test table on the right to judge whether the test item is accurately controlled.
  • Page 163 5.3.2 Insp. Valve Test An inspiratory valve test is conducted by checking whether the power supply voltage and drive and feedback voltage of the inspiratory valve are within the normal range. For details about the inspiratory valve test menu, see the following figure: Click the [Start] button to start an inspiratory valve test.
  • Page 164 If the inspiratory valve test fails, a screen as shown in the following figure is displayed. You can click [Retry] to test again. When the inspiratory valve test is successful, a screen as shown in the following figure is displayed. 5-16...
  • Page 165 5.3.3 PEEP Valve Test A PEEP valve test is conducted by checking whether the power supply voltage and drive and feedback voltage of the PEEP valve are within the normal range. For the PEEP valve test screen, refer to 5.3.2 Insp. Valve Test. 5.3.4 Safety Valve Test The safety valve test process is as follows: In the condition where drive gas is available, after opening and then closing the safety valve, read the status of the gas drive pressure switch to...
  • Page 166 The preceding logs can be exported by choosing [Export data] in the [System] menu. If the number of logs exceeds 500, the new one will cover the older one. And the data will not be lost after powering off and on or upgrading software. 5.5 System Info System information includes Software Version information, Running time, and Register.
  • Page 167 5.6 Demo Mode You can enter demo mode only in standby mode. Demo mode has two types: demo mode with alarm and demo mode without alarm. You can select either of the two types by clicking the [Demo mode] button. In demo mode, only the [Demo mode] button is available in the maintenance menu.
  • Page 168 5.8 Factory Setup The password set by the factory is 558188. Choose [Main] > [Service] and then enter the password set by the factory to access the factory setting menu. The factory setting menu includes function activation, drive gas setting, drive gas auto switch, air pressure switch, flowmeter standard setting, flowmeter pipeline, ACGO setting, module rack setting, AG module setting, BIS module setting and CO2 module setting.
  • Page 169 5.9 Function Activation The system supports activation code-based activation and activation code file-based activation. The activation code file must be placed in the root directory of USB. If both CPAP/PS and PSV ventilation modes are activated for a machine, the system only reserves theCPAP/PS ventilation mode.
  • Page 170 5.15 ACGO ACGO has two options, that is, Off, ACGO with three-way valve. Among them, Off applies to the machine that does not need to be configured with ACGO, machine that needs to be configured with a non-independent ACGO, and machine that needs to be configured with independent ACGO without three-way valve.
  • Page 171 Device Maintenance WARNING  When it comes to test and maintain the equipment, make sure that the patient is disconnected from the equipment.  The equipment may have been used on patients carrying infectious diseases. Before testing or maintaining the equipment, wear sterile rubber gloves to reduce the risk of being infected.
  • Page 172 6.3 System Check Ensure that the device is intact. Ensure that the breathing system and absorbent canister are well connected. Ensure that the vaporizer is filled with a defined amount of anesthetic agent. Confirm the test list before additional operations. Confirm the additional standby cylinder wrench.
  • Page 173 The code of one-year service packages: 115-034694-00 one-year maintenance package (0625/Pre-pak) 115-034696-00 one-year expansion package (0625/Pre-pak) 115-034698-00 one-year complete package (0625/Pre-pak) 115-021121-00 one-year maintenance package (0616/0625) 115-021122-00 one-year expansion package (0616/0625) 115-021123-00 one-year complete package (0616/0625) Description Usage Note Airway 082-000711-00 O-ring 10X1.8, viton, A70 pressure...
  • Page 174 Sodalime canister sealing part Bypass lower 0601-20-78842 (Die MR78842) part assembly Bypass lower 049-000154-00 Outlet sealing cushion (0601) part assembly O-ring 14.00X2.65, silicone, Vaporizer 082-000162-00 A50, black support rack O-ring 4.7X1.8, viton, A50, Pressure M6M-010063--- black sampling port Drive gas connector(2) M6M-010058--- O-ring 16X2, viton, A50, black...
  • Page 175 (16) M6M-010058--- or 082-000673-00 (7)040-000358-00 (1)082-000711-00 (2)M6M-010031--- (8)M6M-010071--- (3)M6M-010033--- (9)0601-20-69771 (4)115-001366-00 (10) 049-000243-00 (5)0611-10-45654 (6)M6M-010038--- (14 ) 082-000162-00 (11)0601-20-78840 (12)0601-20-78842 (13)049-000154-00 (15)M6M-010063--- (16)M6M-010058--- (17)M6M-010051--- (18)M6M-010006---...
  • Page 176 If the anesthesia machine is configured with Pre-pak circuit, replace periodically as per the following list 115-034698-00 one year complete service kit. Description Usage PoP-off valve 049-000240-00 pop-off rubber pad rubber pad Valve cover for 082-001501-00 O-ring 27X1.5, silicone, A50 upper cover assembly Valve body for...
  • Page 177 Exchange the sealing ring (M6M-010063---) of the pressure sampling port, sealing ring (M6M-010006---) for fresh gas and ACGO, and sealing ring (M6M-010058---) for drive gas and APL every 12 months. Sealing ring Sealing ring Sealing ring （M6M-010058---） （M6M-010006---） （M6M-010063---） Non-Pre-pak Circuit part Remove the sealing ring (M6M-010058---) from the bag arm.
  • Page 178 Exchange the sealing ring (M6M-010031---) of the valve cover and sealing ring (M6M-010033---) of the valve seal. Sealing ring（M6M-010031---） Sealing ring（M6M-010033---） Remove the breathing connector, to exchange the flow sensor assembly. Flow sensor assembly（15-001366-00）...
  • Page 179 4. Unplug the cable of oxygen sensor, to exchange oxygen sensor (0611-10-45654). Oxygen sensor（0611-10-45654) Exchange the sealing ring (M6M-010038---) of the water collection cup. Sealing ring（M6M-010038---） Exchange the sealing ring (049-000243-00) of bellows housing and bellows (040-000358-00). Bellows （040-000358-00） Sealing ring of bellows housing（049-000243-00）...
  • Page 180 Remove the bellows housing and bellows, and unscrew the four screws. Open the Pop-off valve cover, to exchange the sealing ring (M6M-010071---). Sealing ring（M6M-010071---） After opening the Pop-off valve cover, exchange the Pop-off valve rubber pad (0601-20-69771) of the Pop-off valve slug. Pop-off valve rubber pad (0601-20-69771) PoP-off valve slug 6-10...
  • Page 181 Remove the lifting device assembly, and remove the BYPASS lower assembly, and then exchange the BYPASS big sealing cushion (0601-20-78840). Lifting device BYPASS lower assembly BYPASS big sealing cushion（601-20-78840） 10. Remove the BYPASS lower assembly, and exchange the sodalime canister sealing part (0601-20-78842).
  • Page 182 11. Remove the Bypass lower assembly, to exchange the outlet sealing cushion (0616) (049-000154-00). Outlet sealing cushion (0601) （049-000154-00） 12. Exchange the sealing ring (M6M-010051---) of the sodalime canister support rack. Sealing ring（M6M-010051---） 6-12...
  • Page 183 Pre-pak circuit If the Pre-pak circuit is configured: (1) Exchange the sealing ring ( 049-000240-00) of the Pop-off valve rubber pad every 12 months. Pop-off valve rubber pad ( 049-000240-00 ) 6-13...
  • Page 184 (2) Exchange the sealing ring (082-001501-00) of the valve cover every 12 months. Sealing ring （082-001501-00） (3) Exchange the sealing ring(082-001503-00)of the valve seal every 12 months. Sealing ring （082-001503-00） 6-14...
  • Page 185 (4) Exchange the sealing ring (082-001504-00) of the water collection cup every 12 months. Sealing ring （082-001504-00） (5) Exchange the sealing ring (082-001508-00) for the base of the bellows every 12 months. Sealing ring for the base of the bellows 6.4.1.2 Checkout and Test of the Anesthesia Machine Perform the following maintenance procedures every 12 months: System inspection (refer to 4.1).
  • Page 186 Closed the battery box. Closed the rear cover plate. Please only adopt the battery (P/N: 022-000008-00) which Mindray anesthesia machine supports. 6.6 Tests after Maintenance After the anesthesia machine at the client end is maintained, some routine tests are required to check if the current status of the anesthesia machine is normal.
  • Page 187 mechanical connectors. return visit ventilation 2. Check the control effectiveness of main control board mode and auxiliary control board over PEEP safety valve. 3. Check the monitoring effectiveness of auxiliary control module over airway pressure and PEEP path pressure. Breathing system leak Check the pneumatic circuit in manual ventilation mode After each...
  • Page 188 6.6.1 Check the Mechanical Ventilation Mode NOTE  The main function of the anesthesia machine is to provide breathing support—mechanical ventilation which complies with the doctor’s settings to the patient. The tests in this section are performed aiming to ensure that the machine is able to provide normal mechanical ventilation.
  • Page 189 TV control and measurement are normal: the displayed TVe value should be within  the range of TV setting X (1±10%) ml. Circuit leak is within the acceptable range: the folding bag can reach the top of the  bellows housing each time and the lowest graduation on the bellows housing which the bag falls to each time corresponds to approximately TV setting.
  • Page 190 Select PCV as the ventilation mode. Adjust total amount of fresh gas to 0.5 L/min. Set the following combinations of Pinsp, Rate and PEEP respectively: (10 cmH2O, 15 BPM, OFF), (15 cmH2O, 12 BPM, 5 cmH2O), (20 cmH2O, 10 BPM, 8 cmH2O). Set others to the defaults.
  • Page 191 6.6.4 Check the Sensor Zero Point NOTE  The zero point A/D value of the airway pressure sensor and PEEP pressure sensor should fall within the normal range of 7432 to 16206.  The zero point A/D value of the inspiratory flow sensor should fall within the normal range of 554 to 26457.
  • Page 192 6.6.5 Check the Flow Sensor Accuracy NOTE  If a great deviation of TV measured value occurs, test the measurement accuracy of flow sensors so as to determine whether to perform flow calibration again. Checking the flow sensor accuracy is to check: ...
  • Page 193 6.6.6 Check the Pressure Sensor Accuracy NOTE  Generally, measurement deviations do not easily occur to pressure sensors. However, in case of maintaining or replacing the monitor board, three-way valve assembly, or expiratory valve assembly, you need to perform pressure calibration and check the flow sensors accuracy so as to confirm the effectiveness of calibration.
  • Page 194 6.6.7 Check the Electronic Flowmeter Accuracy NOTE  When a great measurement deviation occurs to the electronic flowmeters, checkthe electronic flowmeter accuracy so as to determine whether to calibrate the electronic flowmeters again. This test is to check if the measurement by the electronic flowmeter is normal. Do this test after calibration to check the calibration effect.
  • Page 195 6.6.7.2 Check the N2O Electronic Flowmeter Accuracy NOTE  When checking the accuracy of N2O electronic flowmeter, first adjust O2 flow to sufficiently large (above 5 L/min), so as to make sure that O2 flow does not increase when the needle valve of N2O supply flowmeter is being adjusted. Otherwise, you need to increase O2 flow further and do the test again.
  • Page 196 FOR YOUR NOTES 6-26...
  • Page 197 System Calibration 7.1 Overview This section elaborates how to test and calibrate the WATO EX-55 pro/65pro anesthesia machine. Calibration refers to mechanical and electrical adjustments using test devices. The anesthesia machine needs to be tested and calibrated after repairs or at regular intervals as part of routine maintenance.
  • Page 198 7.2.2 Cautions CAUTION  Refer to the maintenance period in the Chapter 6 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 199 7.3 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 relevant calibration.
  • Page 200 Calibration Function Calibration Occasion Item Description EFCS Zeros the EFCS There is deviation between the zero point of flow flowmeter flowmeter. and actual zero points on the EFCS flowmeter. zeroing (user) After the fresh gas is turned off, the EFCS flowmeter displays non-zero values.
  • Page 201 7.3.1.1 Flow Calibration Principles This calibration item is used to calibrate only the flow sensors and inspiration valve in the circuit. The built-in flow measurement base source of the machine is utilized to calibrate the inspiratory flow sensor and expiratory flow sensor on the breathing system. The VCM opens the inspiration valve based on inspiration valve DA values obtained from service calibration, to inflate the circuit of the breathing system, records the flow of the built-in flow sensor, and uses the measured value of the built-in flow sensor as well as AD values collected by the inspiratory flow sensor and...
  • Page 202 7.3.1.2 Calibration (User) Procedure Perform the following steps to calibrate flow sensors. Enter the standby mode. [Main] > [General]> [Calibrate Flow Sensors], to enter the screen shown below. Follow the instructions on the screen to set the machine and select [Next] to enter the screen shown below.
  • Page 203 Select [Begin] to calibrate the flow sensor. During the calibration, you can select [Cancel] to abort. The screen shown below is displayed if the ongoing calibration is aborted. Select [Try Again] to do the calibration again or select [Done] to exit the calibration screen. The screen shown below is displayed if the flow sensor calibration fails.
  • Page 204 The screen shown below is displayed upon a successful flow sensor 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 205 7.3.2 Flow calibration (Service) NOTE  After the VCM or expiratory valve assembly is replaced, flow calibration (service) shall be implemented.  If the deviation between the value measured by the embedded flow sensor and the value measured by a standard flow measurement device is great, flow calibration (service) shall be implmented.
  • Page 206 7.3.2.2 Precautions NOTE  Ensure that tubes do not leak when connected. That is, they have passed the leakage test.  Do not move or press tubes during calibration.  When connecting calibration tubes, ensure that the gas flow direction is correct. Normally, the gas flows from the inspiration connector of the breathing system, the high-flow inlet of the anesthesia machine calibration device, the anesthesia machine calibration device, the high-flow outlet of the anesthesia machine calibration...
  • Page 207 Select [Calibrate Automatically] to enter the screen shown below. Select the required calibration device. Connect a calibration device with the anesthesia machine using a communication cable. The calibration device can be the VT or Fluke VT Plus.  The following figure shows the ports on the VT and the corresponding settings: Calibration communication port Power...
  • Page 208 Mode I: Remove the cover on the top of the anesthesia machine. Connect the communication port (the white cable on the left in the figure) on the calibration device to the calibration communication port on the VCM board on the anesthesia machine using the communication cable A.
  • Page 209  The following figure shows the ports on the Fluke VT Plus and the corresponding settings: (1). Power on the anesthesia machine calibration device Fluke VT Plus. The following figure shows the ports on the Fluke VT Plus: RS232 connecting cable, connecting the calibration device...
  • Page 210 (2). Connect the Fluke VT Plus to the anesthesia machine. The following figure shows the corresponding port: RS232 connecting cable, connecting the anesthesia machine Cable connection on the back of the anesthesia machine  Connectors and settings related to FPM are shown below. Anesthesia machine end connection mode is same as Fluke VT Plus.
  • Page 211 interface. Press [ZERO] on the panel. In the displayed interface, press [OK] to complete zeroing. (2) On the panel of the calibration device VT, press [MODE]. Select [Calibration Mode] from the menu, and press [OK] on the panel to go to the calibration interface. See the following figure: If the VT Plus is used as the calibration device, configure the Fluke VT Plus in the following way: (1) Gas settings: Select [Main], and select [Setting] >...
  • Page 212 (3) Zeroing settings: Select [Main], and select [Setting] > [ENTER] > [Zero Mode] > [Manual] > [BACK] > [BACK]. (4) Serial port mode settings: Select [Main], and select [Setting] > [System] > [Enter] > [Serial Mode] > [OTIS Ctrl] > [BACK] > [BACK]. (5) The calibration goes into the serial port mode interface after the VT Plus is configured.
  • Page 213 （2）Zero the sensor without connecting any tubes. （3）User Setup->Gas Type->O2 （4）User Setup->Measure Mode->BTPS 7-17...
  • Page 214 Press [Next]. The menu as shown in the following figure is displayed: Select the low-speed channel first if the VT Plus is used as the calibration device. See the following figure: 7-18...
  • Page 215 Airway connection involving the VT Plus Select the large-volume flow inlet/outlet (0 – 120 L/min) on the calibration device if the VT is used as the calibration device. See the following figure: Air flow direction Water collection cup adapter Airway connection involving the VT ...
  • Page 216 The menu as shown in the following figure is displayed after the low-speed channel calibration is complete: 10. Connect to the high-speed flow channel of the calibration device as shown in the following figure if the VT Plus is used as calibration device: Airway connection involving the VT Plus Select [Continue] without changing the flow speed if the VT or FPM is used as the calibration device.
  • Page 217 12. The interface as shown in the following figure is displayed after the calibration is complete.  If the flow sensor calibration fails, the interface as shown in the following figure is displayed. Read the detailed information displayed on the calibration device, troubleshoot the failure and rectify the fault.
  • Page 218 13. The interface as shown in the following figure is displayed if the ongoing calibration is cancelled. Select [Retry] to re-calibrate. Select [OK] to quit calibration. 7.3.2.4 Common Failures and Recommended Actions Failure Description Possible Cause Recommended Action After Begin is The prompt message "Manual Set the Auto/Manual switch to the selected, no ventilation...
  • Page 219 Failure Description Possible Cause Recommended Action machine calibration device. Set the anesthesia machine again if necessary. The prompt message Calibration data is incorrect Replace the inspiratory and expiratory "Calibration Failure! flow sensors and conduct calibration Please try again." is again. If calibration still fails, replace displayed 15 minutes the VCM.
  • Page 220 Failure Description Possible Cause Recommended Action [00000020] is There is a zero point error for 1. Check the zero point of the sensor. displayed the ventilator flow sensor. 2. Check whether the inspiratory valve is switched off: After the inspiratory valve is switched off (DA=0 on the valve diagnosis tool), the AD value of the sensor on the anesthesia machine does not change...
  • Page 221 Failure Description Possible Cause Recommended Action [00000100] is The measured range of the 1. Check whether the sampling line is displayed ventilator flow sensor is connected correctly. abnormal. 2. Diagnose the failure using the valve diagnosis tool: In the calibration airway connection environment, start the valve diagnosis tool.
  • Page 222 Failure Description Possible Cause Recommended Action 1. Check the sampling line connection and tightness. 2. Check the gas supply pressure. 3. Check the configuration of the calibration device. [00002000] is The resolution of the expiratory 4. Troubleshoot the sensor and valve displayed flow sensor is incorrect.
  • Page 223 Failure Description Possible Cause Recommended Action 1. Use the valve diagnosis tool to diagnose: (1) Turn on the inspiratory valve in 4000 DA and check that the flow speed measured by the calibration device reaches 90 L/min. (2) Turn off the inspiratory valve. Open up the inspiratory valve gradually in DA.
  • Page 224 7.3.3.1 Pressure Calibration Principles In pressure calibration (service), the anesthesia machine calibration device 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 inspiration valve.
  • Page 225 7.3.3.3 Calibration Procedure Calibrate the pressure sensor and the PEEP valve as follows: Ensure that the anesthesia machine is in standby mode. Select [Main] > [Service] > [Calibration] > [Pressure Sensors] to go to the screen as shown in the following figure: Select [Auto Calibrate].
  • Page 226 Perform automatic calibration according to Step 4 in section 4.3.2.1. Connect the calibration device and the anesthesia machine with a communication cable. Press [Next]. The menu as shown in the following figure is displayed: Connect the sampling lines for pressure calibration with a 4-way assembly. The following figure shows the 4-way assembly, calibration device connector, and VCM used for pressure calibration.
  • Page 227 Connect the 4-way assembly to the pressure sensor P1, PEEP pressure sensor P2, and #97 sampling line on the VCM, and the low-pressure port on the Fluke VT Plus (or high-pressure port sampling interface on the VT, or sampling interface on the FPM). The #99 sampling line is not connected to the assembly during this calibration.
  • Page 228 For FPM as a calibration device, prepare the following plugs and sampling ports. Connect the plugs, sampling ports and FPM inspiratory flow sensor ports as shown in the following figure. Note that the tube length must not exceed 0.6m. Connect the power supply to the calibration device and zero the calibration device manually.
  • Page 229 Select the required calibration device, select [Start]. The calibration interface as shown in the following figure is displayed. During the calibration process, you can select [Cancel] to cancel calibration. 10. The interface as shown in the following figure is displayed after the calibration is complete.
  • Page 230 11. The interface as shown in the following figure is displayed if the ongoing calibration is cancelled. Select [Retry] to re-calibrate. Select [OK] to quit calibration. 7.3.3.4 Common Failures and Recommended Actions Failure Possible Cause Recommended Action Description After [Start] is The alarm "Drive Gas Pressure Change or connect the gas supply to selected, no...
  • Page 231 Failure Possible Cause Recommended Action Description selected, the inspiratory, expiratory, ventilator ventilation sound is pressure sensor, or PEEP pressure heard. The prompt sensor is not connected or is message connected incorrectly. For details, "Calibration see section 5.4. Failure! Please try The maximum pressure generated Replace the expiratory valve assembly.
  • Page 232 Failure Possible Cause Recommended Action Description switch can be set normally. [00000008] is There is a zero point error for the 1. Check the zero point. displayed. flow pressure sensor. 2. Replace the VCM. [00000010] is There is a zero point error for the 1.
  • Page 233 Failure Possible Cause Recommended Action Description [00000200] is The flow pressure sensor 1. Check the sampling line connection displayed. resolution is incorrect. (The and tightness. difference between the maximum 2. Check the gas supply pressure. AD value and the minimum AD 3.
  • Page 234 Failure Possible Cause Recommended Action Description [00008000] is The ACGO switch is in ON 1. Check whether the ACGO switch is displayed. position. in OFF position. 2. Check the monitoring status of the ACGO switch on the interface of the anesthesia machine.
  • Page 235 7.3.4 Pressure and Flow Zeroing (Service) 7.3.4.1 Zeroing Mechanisms The anesthesia machine automatically performs pressure and flow zeroing at regular intervals during operation. You can also perform pressure and flow zeroing manually in the factory maintenance menu. Manual zeroing can immediately eliminate measurement deviations caused by zero offset of sensors.
  • Page 236 Select [Start]. The zeroing interface as shown in the following figure is displayed. During the zeroing process, you can select [Cancel] to cancel zeroing. The interface as shown in the following figure is displayed if the ongoing zeroing process is cancelled. Select [Retry] to re-zero. Select [OK] to quit zeroing. 4.
  • Page 237 The interface as shown in the following figure is displayed after the zeroing is complete. Select [OK] to quit zeroing. NOTE  If zeroing fails, other faults may occur on the machine. In this case , you need to troubleshoot the machine. 7.3.4.3 Common Failures and Recommended Actions If zeroing fails, troubleshoot the failure as follows: Set the anesthesia machine to manual or standby mode.
  • Page 238 7.3.5.2 Zeroing Procedure Zero the EFCS flowmeter as follows: Select [Main] > [General] > [Zero Flow Meters] to go to the screen as shown in the following figure. Select [Begin]. The zeroing screen as shown in the following figure is displayed. During the zeroing process, you can select [Cancel] to cancel zeroing.
  • Page 239 A screen as shown in the following figure is displayed if the ongoing zeroing process is cancelled. Select [Try Again] to re-conduct zeroing. Select [Done] to quit zeroing. A screen as shown in the following figure is displayed if zeroing fails. Select [Try Again] to re-conduct zeroing.
  • Page 240 A screen as shown in the following figure is displayed after the zeroing is successful. Select [Done] to quit zeroing. NOTE  If zeroing fails, other faults may occur on the EFCS flowmeter. In this case, troubleshoot the EFCS flowmeter. 7.3.5.3 Common Failures and Recommended Actions If zeroing fails, troubleshoot the failure as follows: Disconnect the gas supply, empty the gas out of the machine (or adjust the flowmeter to...
  • Page 241 7.3.6 O2 Sensor Calibration 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 calibration.
  • Page 242 The calibration interface as shown in the following figure is displayed after you select [Start]. During the calibration process, you can select [Cancel] to cancel calibration. The interface as shown in the following figure is displayed if the ongoing calibration is cancelled.
  • Page 243 The interface as shown in the following figure is displayed after the calibration is complete. Select [OK] to quit calibration. 7.3.6.2 100% O2 Calibration NOTE  100% O2 calibration must be performed in standby mode.  100% O2 calibration can be performed only after 21% O2 calibration is completed successfully.
  • Page 244 3. Select [Next].The calibration interface as shown in the following figure is displayed. You can set the machine based on the instructions displayed on the screen. 4. Select [Next].The calibration interface as shown in the following figure is displayed. You can set the machine based on the instructions displayed on the screen. Wait for two minutes to ensure that the O2 battery voltage is stabilized at the maximum value for at least 30 seconds.
  • Page 245 6. The interface as shown in the following figure is displayed if the ongoing calibration is cancelled. Select [Retry] to re-calibrate. Select [OK] to quit calibration. 7. The interface as shown in the following figure is displayed if the calibration fails. The message displayed in red indicates the error code.
  • Page 246 7.3.6.3 Common Failures and Recommended Actions Failure Description Possible Cause Recommended Action After [Start] is selected, An “O2 Sensor Disconnected” Connect the O2 sensor. the prompt message alarm is displayed, indicating that indicating calibration the O2 sensor is not connected. failure is displayed very The O2 supply pressure is Change or connect the gas...
  • Page 247 Error Code Description Recommended Action is not in the normal range of O2 sensor is proper. 3586 to 9140 (AD value). Check whether the O2 sensor is in the 21% O2 environment. Check whether the output voltage of the O2 sensor in the calibration menu is stable.
  • Page 248 7.3.7.3 Calibration (Factory) Procedure Calibrate the flow sensor as follows: Ensure that the machine is in standby mode. Select [Main] > [Service] > [Calibrate] > [Calibrate Total Flow Sensor] to go to the screen as shown in the following figure: Select [Begin].
  • Page 249 NOTE  [Calibrate Total Flow Sensor] displays real-time fresh gas flow. In normal cases, only the N2O flow value and total flow value are greater than 0, and the N2O flow value and total flow value increase with the calibration progress. The air and O2 values should be always 0 or very small.
  • Page 250 A screen as shown in the following figure is displayed if the ongoing calibration is cancelled. Select [Try Again] to re-conduct calibration. Select [Done] to quit calibration. 7.3.7.4 Common Failures and Recommended Actions Failure Description Possible Cause Recommended Action After [Begin] is The machine is in the Set the machine to the EFCS state.
  • Page 251 Calibrate as follows: Make sure that the CO2 module is already warmed up. Select the [Maintenance] shortcut key → [Factory Maintenance >>] → enter the required password → [Module Cal. >>] → [Gas Module Cal. >>] → [CO2 Module Cal.]. Check the airway and make sure that there are no occlusions or leaks.
  • Page 252 7.3.9 AG Calibration (factory) 7.3.9.1 Preparations Prepare the following before doing the calibration:  Gas cylinder, with a certain standard gas or mixture gas. 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).
  • Page 253 10. If the calibration is finished successfully, the message [Calibration Completed!] is displayed. Otherwise, the message [Calibration Failure! Please try again.] is displayed. In this case, you need to do the calibration again NOTE  If the calibration fails, you can select [Defaults] to restore the factory default calibration values.
  • Page 254 Check the airway and make sure that there are no occlusions or leaks.  Vent the sampling tubing to the air and check whether the current rate and set rate are approximately the same. If the deviation is great, it indicates that there is an occlusion in the tubing.
  • Page 255 Troubleshooting 8.1 Troubleshooting Guide 8.1.1 Fault Determination Problems that are hard to detect may exist in some fault symptoms due to existence of multiple potential faults. If related faults exist, the following troubleshooting can help you identify faults (if any). 8.1.2 Avoiding Short Circuit of Component Leads During the repairing process, a serial of quick measurement must be conducted.
  • Page 256 8.1.4 Cleanup of the Maintenance Area Clean up the maintenance area after each maintenance. 8.2 Technical Alarms A technical alarm, as apposed to a parameter alarm, is an alarm condition that exists no matter whether a patient is connected to the machine. Technical alarms include: ...
  • Page 257 Alarm Message Cause Solution Priority 3. An error occurs during the 3. If the problem persists, replace the self test of the CPU, RAM, CPU board. address line, watchdog, Flash, O2/N2O/AIR proportional valve, or FPGA. The sample values of the Flowmeter DVDD, AVDD, or VC voltage Restart the machine for a self test...
  • Page 258 Alarm Message Cause Solution Priority and expiratory valve assembly. 4. When necessary, replace the VCM board. 5. When necessary, replace the expiratory valve assembly.. 6. When necessary, replace the power board. 1. Check whether the accuracy of the inspiratory flow sensor is within the valid range.
  • Page 259 Alarm Message Cause Solution Priority calibration. 4. Replace the VCM board and perform calibration. 1. The calibration table is not Calibrate Flow found in the EEPROM. Perform maintenance calibration. Refer Sensor and Insp 2. The checksum of to chapters related to the flow sensor Valve Calibration table does not calibration.
  • Page 260 Alarm Message Cause Solution Priority normal, replace the VCM board. The control status of the drive Drive Gas Valve Restart the machine for a self test gas valve is different from the Self Test Error again. detected status. Use the same method for solving the O2 Supply High The O2 supply pressure is low.
  • Page 261 Alarm Message Cause Solution Priority normally. 4. Replace the BIS module. 1. Reconnect the CO2 module, and restart the machine for a self test again. CO2 Self Test 2. Check the cable connection between Error An error occurs during the the module rack and CPU board.
  • Page 262 8.2.3 Power Board Runtime Alarms Alarm Message Cause Solution Priority 1. Restart the anaesthesia machine. 2. Reconnect the communication cable. 3. Remove the internal battery. Shut down the power supply of the power board for 5 minutes, The CPU board and then restart the power board.
  • Page 263 Alarm Message Cause Solution Priority board. 1. Check whether the battery voltage is within the valid range. 2. Check whether the cable is correctly Battery The battery is not Medium connected. Undetected detected. 3. Replace the battery. 4. If the problem persists, replace the power board.
  • Page 264 8.2.4 Electronic Flowmeter Board Runtime Alarms Message Alarm Cause Solution Priority Electronic Flow Medium 1. The voltage of the main 1. Restart the machine. Control Error CPU or protection CPU is 2. Measure supply voltage of the out of the specified range. flowmeter board.
  • Page 265 Comm Stop establish communication 2. Check the cable connection between with the flowmeter board the flowmeter board and the main within consecutive 10 board. seconds. 3. Replace the flowmeter board when necessary. 4. Replace the main board when necessary. Backup Flow Medium 1.
  • Page 266 8.2.5 VCM Board Runtime Alarms Alarm Message Cause Solution Priority 1. Restart the anaesthesia machine. The CPU board cannot 2. Reconnect the communication cable. Aux Control communicate 3. If the problem persists, replace the ventilator Module Comm High normally with the Aux control board.
  • Page 267 Alarm Message Cause Solution Priority 5. When necessary, replace the expiratory valve assembly. 6. When necessary, replace the power board. 1. Test the voltage at the corresponding testing point. 2. Check the installation of and connection between the power cable and expiratory valve Safety Valve PEEP safety valve Medium...
  • Page 268 Alarm Message Cause Solution Priority 4. If the accuracy does not meet the requirement, perform calibration. 1. The Vte is smaller than Vti by 200 ml or by 50% for 30s 1. Check whether the circuit and flow sensor consecutively. are correctly connected.
  • Page 269 Alarm Message Cause Solution Priority should disappear. If the alarm does not disappear, the pressure switch fails. In this case, replace the pressure switch. If the pressure switch does not fail, check the connection between the pressure switch and the VCM board.
  • Page 270 Alarm Message Cause Solution Priority Channel PEEP sensor or Paw is out of range, replace the ventilation control Failure sensor is out of range. board or VCM board assembly. 2. If the AD of the zero point of each sensor is within the valid range, check whether the software of the VCM board is compatible with the system software version.
  • Page 271 Alarm Message Cause Solution Priority normally with the keyboard and CPU board. keyboard for 10s 3. When necessary, replace the keyboard. consecutively. 4. When necessary, replace the CPU board. 8.2.6 External AG Module Runtime Alarms Alarm Message Cause Solution Priority AG Hardware The AG hardware is Replace the AG module.
  • Page 272 Alarm Message Cause Solution Priority The AG module Use only one type of halogenated anesthetic supports measurement agent. and calculation of two Mixed Agent types of halogenated anesthetic agent, and the measured MAC is smaller than 3. The AG module Use only one type of halogenated anesthetic supports measurement agent.
  • Page 273 Alarm Message Cause Solution Priority the module. 3. Replace the AG module. The monitored value 1. Reduce the concentration of the monitored ISO Over exceeds the gas to the normal range. Range measurable range of 2. Calibrate the AG module again. the module.
  • Page 274 Alarm Message Cause Solution Priority BIS R Over The monitored value of Replace the BIS module. Range BIS R exceeds the measurable range. The sensor is not properly 1. Check whether the BIS sensor is BIS High attached to the skin of the in proper contact with the skin.
  • Page 275 Alarm Message Cause Solution Priority C High Imped. electrode C is too high. in proper contact with the skin. 2. Replace the BIS sensor. 1. Check whether BIS electrode C is BIS Electrode BIS electrode C is in proper contact with the skin. C Lead Off detached from the patient.
  • Page 276 3. Replace the plug-in module of the BIS module. The BIS sensor is not a BIS Wrong 1. Check the type of the BIS sensor. Mindray specified Sensor Type 2. Replace the BIS sensor. product. Sensor overcurrent or BIS Sensor 1.
  • Page 277 8.2.8 CO2 Module Runtime Alarms Sidestream CO2 module: Alarm Message Cause Solution Priority The CO2 module is 1. Replace the communication cable CO2 Comm High faulty or encounters a of the CO2 module. Stop communication failure. 2. Replace the CO2 module. The temperature of the CO2 Sensor CO2 sensor is higher...
  • Page 278 Alarm Message Cause Solution Priority CO2 module. The monitored value is EtCO2 1. Re-calibrate the CO2 module. out of the measurable Overrange 2. Replace the CO2 module. range. The monitored value is FiCO2 1. Re-calibrate the CO2 module. out of the measurable Overrange 2.
  • Page 279 8.2.10 Microstream CO module: Alarm Message Cause Solution Priority The CO2 module is 1. Replace the communication cable CO2 Comm High faulty or encounters a of the CO2 module. Stop communication failure. 2. Replace the CO2 module. 1. Check whether the sample line of Sampleline the CO2 module is occluded by any Occluded...
  • Page 280 Alarm Message Cause Solution Priority The monitored value is 1. Re-calibrate the CO2 module. Overrange out of the measurable 2. Replace the CO2 module. range. 1. Re-calibrate the CO2 module. Check Cal. 2. Replace the CO2 module. Leak and Compliance Tests NOTE ...
  • Page 281 Set the machine following the instructions on the screen, and then select Continue to perform the automatic circuit leak and compliance test. Progress of the automatic circuit leak and compliance test is displayed on the screen. As shown in the figure below, select Cancel to cancel the ongoing test.
  • Page 282 Set the machine following the instructions on the screen, and then select Continue to perform the manual circuit leak and compliance test. Progress of the manual circuit leak and compliance test is displayed on the screen. As shown in the figure below, select Cancel to cancel the ongoing test.
  • Page 283 NOTE  If a leak exists, check whether the pneumatic circuit system leaks, and perform troubleshooting following the information in ‘Section 8.3. Circuit Leak Test’. After the fault source is repaired, second leak test shall be conducted.  If a leak exists, check whether the pneumatic circuit system leaks, and perform troubleshooting following the information in ‘Section 8.5.
  • Page 284 8.4.1 Onsite Maintenance Tools The following table lists the tools required for troubleshooting. Name Quantity Negative pressure ball 040-000814-00* Syringe (100 ml) 040-000040-00* Test fixture of the circuit transit adapter 115-002452-00* Test fixture of the pressure sampling tube of the flow sensor 115-002456-00* Test fixture of the vaporizer support 115-002453-00*...
  • Page 285 Name Quantity Φ6 silicone tube A21-000007---* A5 maintenance manual 046-001140-00 Adult test lung 0138-00-0012 Wrench 0367-00-0080 15 mm Y-shape connection accessory 0103-00-0508 15 mm silicon air tube (0.6 meters) 0004-00-0076 2.3 L silicon breathing bag 0992-00-0139 Adjuster calibration hose 0453-00-1216 A5 fault locating kit 115-009450-00 Vaporizer guide...
  • Page 286 The following figures show the required tools. (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (1) PU tube (4X200) (2) PU tube (6X100) (3) PU tube (6X200) (4) PU tube (6X300) (5) PU tube (8X200) (6) Φ6 silicone tube (7) Air tube (8) 3106-04-06 adapter connector (9) 3106-06-00 adapter connector...
  • Page 287 Negative pressure ball Test fixture of the circuit transit adapter Test fixture of the pressure sampling line of the flow sensor 8-33...
  • Page 288 Test fixture of the vaporizer support Anesthesia machine calibration device 1 MPa (10 bar) test pressure gauge 8-34...
  • Page 289 The test fixture of the circuit transit adapter has four pressure sampling tube connectors and four 6 quick connectors, which are marked with the corresponding numerical symbols, as shown in the following figure. Pressure sampling tube 6 quick connectors connectors 6 fast-plug The pressure sampling tube connector can be connected to the Silicon hose (6x300), and the ∅6 quick connector can be connected to the PU tube (6X100), PU tube (6X200), and PU tube...
  • Page 290 The test fixture of the circuit transit adapter can be installed on the circuit transit block of the anaesthesia machine or the removed patient circuit, as shown in the following figure. If the plugging is difficult during installation, apply some lube oil (lubricating grease or Krytox high-performance Fusso lubricating grease) on the seal ring of the corresponding circuit transit block, as shown in the following figure.
  • Page 291 8.4.1.1 Precautions for Use of Test Fixture of Pressure Sampling Tube of Flow Sensor The test fixture of the flow sensor tributary has two pressure sampling tube connectors, as shown in the following figure. Pressure sampling tube The pressure sampling tube connector can be connected to the Silicon hose (6x300). When using the test fixture of the flow sensor tributary, take out the expiration or inspiration flow sensor from the patient circuit.
  • Page 292 8.4.1.2 Precautions for Use of Test Fixture of Vaporizer Support Before use, take out the seal ring on the connector of the vaporizer support for cooperating with the vaporizer. Slide the fixture into the connector, as shown in the following figures. Before the test After the test fixture slid in fixture slid in...
  • Page 293 In contact after fixing in the corresponding position 8.4.1.3 Precautions for Use of Negative Pressure Ball Besides the seal cover, the front end of the negative pressure ball also has two check valves, as shown in the following figure. The embedded check valve is connected to the inlet port of the negative pressure ball and is used only for gas suction.
  • Page 294 Ensure no leakage occurs before using the negative pressure ball. Check whether the pre-seal cover is fastened. Then, squeeze the negative pressure ball to exhaust all gas inside. Properly install the exhaust port plug. Block the pre-inlet port using your fingers and then release the negative pressure ball.
  • Page 295 Failure Description Possible Cause Recommended Action gauge is damaged. pressure gauge. When the O2 supply pressure is too low, the "O2 Supply Adjust the pressure switch of the O2 inlet Failure" alarm is not assembly to keep the O2 supply pressure generated;...
  • Page 296 Test procedures: I. O2 inlet assembly: Switch off the gas source switch and switch on the O2 flush switch to release the remaining pressure. Disconnect pipeline 46 connecting to the EFCS flowmeter. Connect the 1 MPa test pressure gauge to the pipeline 46 using the 3106-04-06 adapter connector.
  • Page 297 10. Switch on the pipeline source and record the reading on the pressure gauge. If the deviation between this reading and the reading on the O2 pipeline pressure gauge exceeds 0.1 MPa (1 bar), the O2 pipeline pressure gauge is damaged. Handle this issue according to the fault locating table.
  • Page 298 III. Air inlet assembly: Stop the gas supply. Disconnect pipeline 51 connecting to the EFCS flowmeter. Connect the 1 MPa test pressure gauge to pipeline 51. Switch on the pipeline air source. Record the reading on the pressure gauge. If the deviation between this reading and the reading on the air pipeline pressure gauge exceeds 0.2 MPa (2.0 bar), the air pipeline pressure gauge is damaged.
  • Page 299 Test procedures: Switch off the gas source switch and switch on the O2 flush switch to release the remaining pressure. Disconnect pipeline 47. Remove only the end of the pipeline connecting to the pressure regulator assembly. Connect a PU tube (8X200) to the O2 inlet of the pressure regulator assembly. Connect another end of the PU tube and the removed end of pipeline 47 to two connectors of the 3140-08-00 Y-shape tube.
  • Page 300 10. Switch off the O2 supply and keep the reading on the test pressure gauge remain non-decreased. If the "O2 Supply Failure" alarm is generated in 10s, the pressure switch of the O2 inlet assembly is damaged. Handle this issue according to the fault locating table.
  • Page 301 8.4.2.4 Adjusting the Regulator of the Pipeline Gas Inlet Assembly Unscrew the fastening nut at the top of the regulator. Rotate the valve stem clockwise to increase the pressure or anticlockwise to decrease the pressure with an adjustment valve stem for inner hexagon wrench, as shown in the figure below.
  • Page 302 Failure Description Possible Cause Recommended Action support and the spring is damaged or polluted. The vaporizer support Replace the vaporizer support assembly is damaged. assembly. The general flowmeter is Replace the general flowmeter. leaked. The ORC assembly is leaked. Replace the ORC assembly. The flow regulator is leaked.
  • Page 303 8.4.3.1 Leakage Test on the O2 Flush Button Assembly Use the following tools to perform the leakage test on the O2 flush button assembly:  One negative pressure ball  One 3106-06-00 adapter connector  One PU tube (6X100) Test procedures: Switch off the gas source switch and switch on the O2 flush switch to release the remaining pressure.
  • Page 304 Test procedures: Turn off the pipeline gas supplies and switch on the O2 flush switch to release the remaining pressure. Remove the PU tube 83 connecting to the auxiliary oxygen flowmeter assembly and seal this end with the tube plug. 3.
  • Page 305 Remove the PU tube 48 connecting to the backup oxygen flowmeter assembly. Connect the negative pressure ball and then squeeze the negative pressure ball to exhaust the internal gas. Release the negative pressure ball. If the negative pressure ball is completed expanded within 30s, the backup oxygen flowmeter assembly is damaged.
  • Page 306 Release the negative pressure ball. If the negative pressure ball is completed expanded within 30s, the EFCS flowmeter assembly is damaged. 8.4.3.5 Leakage Test on the System Switch Assembly Use the following tools to perform the leakage test on the system switch assembly: ...
  • Page 307 Release the negative pressure ball. If the negative pressure ball is completed expanded within 30s, the pipeline connecting to the system switch assembly is damaged. Disable the system switch. Remove the 3126-06-00 tube plug used to block pipeline 45. Then, squeeze the negative pressure ball to exhaust all gas inside. Release the negative pressure ball.
  • Page 308 Test procedures: Disable the system switch. Remove the vaporizer. Remove the PU tube 25 connecting the vaporizer support assembly. Disconnecting the end connecting to the vaporizer support and block this end using the 3126-08-00 tube plug. Remove PU tube 55 connecting the vaporizer support assembly.Connect this end to the negative pressure ball using a 3106-06-08 adapter connector.
  • Page 309 Repeat step 5 and step 6 each time you move the test fixture of the vaporizer support. If the negative pressure ball is completed expanded within 30s, the rubber flat washer or the lower surface in contact with the mechanical face is damaged. Handle this issue according to the fault locating table.
  • Page 310 8.4.4 Breathing System The following table lists the faults related to the breathing system. Failure Possible Cause Recommended Action Description Re-install the CO2 canister. Clean The CO2 canister in not properly the soda lime at the sealing joint. installed. Ensure that the soda lime canister is properly installed.
  • Page 311 Failure Possible Cause Recommended Action Description The breathing tube connecting to the Replace the breathing tube. patient end is damaged. Replace the bellow once every The bellow is damaged. year. Repair or replace the sealing The sealing connector of other parts of connector according to section the breathing system is damaged.
  • Page 312 Failure Possible Cause Recommended Action Description After checking, repair the pressure sampling line of the flow sensor The pressure sampling line of the flow according to section 8.4.4.1 sensor is leaked. Leakage Test on the Sampling Line of the Flow Sensor. 8.4.4.1 Leakage Test on the Sampling Line of the Flow Sensor If an irregular flow waveform is displayed, the pressure sampling line of the flow sensor may be leaked.
  • Page 313 Push the pushrod of the syringe to make the reading of the anaesthesia machine calibration apparatus rise to 70-90 cmH2O. Stop pushing the pushrod and remain the relative position between the pushrod and the syringe body unchanged. If the pressure reading of the anaesthesia machine calibration apparatus decreases no more than 5 cmH2O within 15s, the test item is passed.
  • Page 314 Push the pushrod of the syringe to make the pressure reading on the anaesthesia machine calibration apparatus rise to 70-90 cmH2O. Then, stop pushing. Remain the relative position between the pushrod and the syringe body unchanged. If the pressure reading of the anaesthesia machine calibration apparatus decreases no more than 5 cmH2O within 15s, the test item is passed.
  • Page 315 Pass Check the Check the sealing elements Figure b Manual 2. Leakage Completed sealing parts of of the APL valve, ventilation Pass Completed pass test on the manual supporting tube of the leakage test manual breathing bag intermediate plate, and the ventilation and the breathing Automatic/Manual switch...
  • Page 316 Note：After troubleshooting faults, perform the failed test again before proceed with the current step. If the test fails again, perform the leak test based on the flowchart. You can skip the steps after test success or component maintenance. Figure d Leakage test on breathing circuit 8-62...
  • Page 317 Leakage test on mechanical ventilation Perform the leakage test in mechanical ventilation mode according to section 3.7.2 Leakage Test on Breathing System. Leakage test on the breathing system in manual ventilation mode Required tools:  Three breathing tubes  One Y-shape breathing tube Test procedures: (1) Enter the standby mode.
  • Page 318 Check the bellow housing and the ensure the Automatic/Manual switch is set to Manual. Required tools:  One anesthesia machine calibration device  One test fixture of the circuit transit adapter  One syringe  Two Φ6 silicon tubes  One PU tube (6X300) ...
  • Page 319 (7) Push the pushrod of the syringe to make the pressure reading on the anaesthesia machine calibration apparatus rise to 30-35 cmH2O. Then, stop pushing. Remain the relative position between the pushrod and the syringe body unchanged. If the pressure reading of the anaesthesia machine calibration apparatus decreases more than 10 cmH2O within 30s, the test fails.
  • Page 320 (7) Start the system and enter the standby mode. (8) Choose Setup > Service > DiagnosticTests > Valves. Set the AD value of the PEEP valve to be larger than 50 cmH2O. Set the A/D value of the inspiration valve to 0 to generate the flow at 0 L/min.
  • Page 321 Check the canister assembly. Required tools:  One VT PLUS  One Lucer adapter connector  One syringe  Two Φ6 silicon tubes  One PU tube (6X300)  Three breathing tubes  One Y-shape tube  One Y-shape breathing tube ...
  • Page 322 Connect to the Φ6 silicon tube Connect to the TV plus Connect to the VT Plus Rotate the blue part to lock the connecter connecting to VT Plus Lucer adapter connector Lucer adapter connector Bypass disabled Lucer adapter connector Bypass enabled 8-68...
  • Page 323 (6) Check the sealing parts on two connectors of the lifting device. If damaged, replace the sealing parts. Then, re-install the lifting device on the breathing system. Check the circuit inspiration and expiration parts. Test procedures: (1) Disable the system switch. (2) Check the manual breathing bag.
  • Page 324 Check the ACGO assembly. Required tools:  One negative pressure ball  One test fixture of the circuit transit adapter  One PU tube (6X100)  Two 3106-08-10 adapter connectors  One 3126-06-00 tube plug  One 3126-08-00 tube plug ...
  • Page 325 (7) Repeat step 3 to step 7 in 4 Leakage Test on Each Tributary of the Circuit Transit Adapter. If the test is not passed, the ACGO assembly is damaged, replace the seal ring of the ACGO assembly or replace the ACGO assembly. 8.4.5 Tidal Volume The following table lists the faults that may cause inaccurate tidal volumes.
  • Page 326 Failure Possible Cause Recommended Action Description The inlet flow sensor on the Replace the expiratory valve or its integrated integrated airway of the airway. expiratory valve is damaged. Expiration begins in advance Set the Plimit to a larger value so that the because the specified Plimit Paw value does not exceed the limit.
  • Page 327 Turn on the gas source and enter standby mode. Choose Setup > Service > Diagnostic Tests > Valves and set the A/D value of the PEEP valve properly so that the PEEP exceeds 40 cmH2O. Set the PEEP safety valve to the ON state.
  • Page 328 8.5.1 Mapping Between Menu Items on the Valve Diagnosis Tool Interface and Airways The following figure shows the mapping between the sensors or valves on the tool interface and the components in the airway schematic diagram. Flow sensor of the Inspiratory valve anaesthesia machine...
  • Page 329 8.5.2 Mapping Between Menu Items on the Valve Diagnosis Tool Interface and Hardware Components The following figure shows the actual connection of the sensor sampling lines on the VCM. Airway pressure PEEP pressure Expiratory Flow sensor of flow sensor the anaesthesia Flow direction machine Inspiratory...
  • Page 330 8.5.3 Preparations Before Using the Valve Diagnosis Tool Before identifying valve or sensor faults by using the valve diagnosis tool, make preparations as follows: Connect the airway according to the type sensor or valve to be checked. Before using the diagnosis test menu, connect the tubes of the anaesthesia machine with constant flow to check the flow sensor and inspiratory valve.
  • Page 331 You can check whether the sampling lines are connected correctly by using the valve diagnosis tool.  Perform the following operations to check the connection of the sampling lines of the flow sensor: Connect the tubes of the anaesthesia machine with constant flow. For details, see section 5.4.1.
  • Page 332 8.5.6 Diagnosing Pressure Data Exceptions of Sensors  The pressure sensor has one sampling line. Connection exceptions include:  The sampling line is not connected.  The sampling line is connected incorrectly. You can check whether the sampling lines are connected correctly by using the valve diagnosis tool.
  • Page 333 For any sampling line connection errors, reconnect the sampling line and ensure that it is connected correctly.  Perform the following operations to diagnose the measurement error of the pressure sensor: As the actual pressure increases, the measurement value of the pressure sensor ...
  • Page 334 8.5.8 Diagnosing PEEP Safety Valve Exceptions If the PEEP safety valve is in the normally closed state and the gas source complies with the regulations, the alarm Drive Gas Pressure Low will be triggered. You can check whether the status of the PEEP safety valve and PEEP valve is correct in the Diagnostic Tests menu.
  • Page 335 that when the D/A value is small, the PEEP valve has a non-responsive area. If the D/A value is smaller than the range, the PEEP valve cannot be turned on and the output volume is always 0. If the D/A value is larger than the range, the output pressure increases as the D/A value increases.
  • Page 336 Failure Description Possible Cause Recommended Action The O2 Supply The pressure switch of Adjust the pressure switch of the O2 supply Failure alarm is not the O2 supply inlet is inlet and ensure that the O2 pressure is within generated when the invalid.
  • Page 337 Disconnect pipeline 83. Do not pull out the pipeline end that connects to the auxiliary O2 source. Pull out the end that connects to the Y-shape tube. Connect the 1 Mpa test pressure gauge to the Y-shape tube by using the 3106-04-06 adapter connector.
  • Page 338 Turn on the pipeline gas source and record the reading on the test pressure gauge. If the deviation between the readings of the test pressure gauge and O2 pipeline pressure gauge exceeds 0.1 MPa (1 bar), the O2 pipeline pressure gauge is damaged. Handle this problem according to the fault identification table.
  • Page 339 Turn on the pipeline N2O and O2 sources. Adjust the regulator of the N2O supply inlet to the measured/preset value (see step 4 in the description of the O2 supply inlet) of the O2 supply inlet. Record the reading on the N2O pipeline pressure gauge. Turn off the pipeline N2O source and turn on the N2O flow regulator to release the remaining pressure.
  • Page 340 Turn on the pipeline N2O source and record the reading on the test pressure gauge. If the difference between the readings of the test pressure gauge and N2O pipeline pressure gauge exceeds 0.1 MPa (1 bar), the N2O pipeline pressure gauge is damaged. Handle this problem according to the fault identification table.
  • Page 341 Turn on the pipeline air source and record the reading on the test pressure gauge. If the difference between the readings of the test pressure gauge and pipeline air pressure gauge exceeds 0.1 MPa (1.0 bar), the pipeline air pressure gauge is damaged. Handle this problem according to the fault identification table.
  • Page 342 Test procedure: Turn off the pipeline gas source and press the quick oxygenation key to release the remaining pressure. Disconnect pipeline 63. Pull out the pipeline end that connects to the cylinder bracket and do not pull out the other end. Connect a PU tube (8x200) to the Y-shape tube.
  • Page 343 11. Adjust the O2 flow regulator until the O2 flow reaches about 0.5 L/min and the reading on the test pressure gauge decreases to 0.2 MPa (2 bar). 12. Turn off the O2 flow so that the reading on the test pressure gauge does not decrease. If the alarm Drive Gas Pressure Low is generated after 10 seconds, the pressure switch in the integrated airway of the expiratory valve is damaged.
  • Page 344 8.6.1.4 Adjusting the Regulator of the Pipeline Gas Supply Inlet Turn the regulator clockwise by using an M3 inner hexagon wrench to increase the pressure or anticlockwise to decrease the pressure. See the figure below. Each time after you adjust the pressure, release the pressure inside the pipeline gas supply inlet by using the calibration hose of the regulator (PN0453-00-1216).
  • Page 345 Failure Possible Cause Judgment Method Recommended Description Action The alarm The heater is in Measure the resistances of pins 1 and Replace the Heating poor condition. 2 and pins 3 and 4 of the connector heater. Module Failure that connects to the thermistor under is generated at the workbench by using a multimeter.
  • Page 346 Failure Possible Cause Judgment Method Recommended Description Action displays a analysis. black screen The CPU board is Power on the anaesthesia machine. If Replace the CPU and the alarm abnormal. the sound of the valves can be heard board. indicator is off. and the top lamp works properly, the CPU board is abnormal.
  • Page 347 IP address is set to 192.168.23.1 and the subnet mask is set to 255.255.255.0 for the PC. Check and set the IP address of the PC. See the figure below. Ensure that the Mindray anaesthesia machine software upgrade tool is installed on the PC. If the upgrade tool is not installed, perform the following steps: (1) Run SystemUpdateTool.exe.
  • Page 348 (11) If the Install Shield Wizard dialog box is displayed, select Finish. Software upgrade: (1) On the desktop, run the Mindray anaesthesia machine software upgrade tool. If the dialog box for selecting a product series is displayed, select Wato Pro and click OK.
  • Page 349 IP address settings and network cable. (11) The software update progress is displayed on the screen of the anaesthesia machine. (12) After the upgrade is completed, Succeed is displayed on the Mindray anaesthesia machine. A message indicating system update success is displayed on the Mindray anaesthesia machine software upgrade tool.
  • Page 350 (14) After the 02_Power V1.7.pkg software is upgraded, shut down the anaesthesia machine and then start it again. Note  If the anaesthesia machine cannot be started normally after the upgrade, find the guide document attached with the upgrade package and take measures according to the document.
  • Page 351 8.8.1 Common Software Upgrade Problems and Solutions Common Problem Cause Solution During the upgrade, the A power failure or upgrade Send the CPU board back to the buzzer on the CPU board exception occurs, which factory for repair. beeps and the upgrade cannot damages the BIOS program be finished.
  • Page 352 When a customer needs to add pad configurations, the after-sales service engineer must apply to the after-sales service department of Mindray for the corresponding activation codes. The procedure is as follows: Record the serial number (see the label on the left of the machine) of the anaesthesia machine for which configurations are to be activated.
  • Page 353 Record the configurations to be activated. Send the recorded information to the after-sales service department of Mindray for activation code application. 8.8.2.2 Software Function Activation Procedure Note  Before activation, check and record the existing paid configurations and those that need to be added.
  • Page 354 Enter the activation code. Click Activate. If the entered activation code is correct, the system will display the message “Activation completed. Please restart the machine for the configuration to take effect!” Click OK and restart the anaesthesia machine for the newly activated configuration item to take effect.
  • Page 355 8.8.2.3 Common Software Function Activation Problems and Solutions Common Problem Cause Solution When the customer attempts Before the anaesthesia Send the CPU board back to the to restart the anaesthesia machine displays the factory for repair. machine after activation, the activation success message, CPU board beeps and the the power supplied to the...
  • Page 356 FOR YOUR NOTES 8-102...
  • Page 357 Repair and Disassembly WARNING  Only use lubricants approved for anesthesia or O2 equipment.  Do not use lubricants that contain oil or grease. They can burn or explode in the presence of high O2 concentrations.  Obey infection control and safety procedures. Used equipment may contain blood and body fluids.
  • Page 358 9.1 Prepare for Disassembly 9.1.1 Tools During parts disassembly and replacement, the following tools may be required:  Metric Allen wrench (2.5#, 3#, 4#, 5# and 8#)  Phillips screwdriver  Diagonal pliers  Flathead screwdriver  Metric M3 and M4 socket screwdriver ...
  • Page 359 9.1.3 Release Pressure Make sure to bleed down the gas pressure inside the anesthesia machine before disassembling pneumatic fittings to avoid personal injury or equipment damage. To bleed gas pressure: Close other cylinder valves and disconnect pipeline gas supplies. Do not disconnect the O2 pipeline.
  • Page 360 9.2.2 Remove Speaker Remove the top plate assembly. Remove the speaker cable connected to top light board. Cut the tie line, and unscrew the two (2) screws fixing the speaker, and then disconnect the connection line to remove the speaker.
  • Page 361 9.2.3 Remove Top Light Board and Switch Remove top cover assembly. Remove the cable connected to top light board. Unscrew the two (2) screws to remove the top light board. Press inward the fasteners, to remove the top light switch.  ...
  • Page 362 9.2.5 Remove Cart Rear Cover Plate Assembly Remove the six (6) screws on the cart rear cover plate assembly to remove the assembly.
  • Page 363 9.2.6 Remove Module Rack Box Assembly Open the service door. Remove the cables from the module rack box assembly. Remove the four (4) screws to remove the module rack box assembly. 9.2.7 Remove Module Rack Fan Open the service door. Remove the module rack box assembly.
  • Page 364 Remove the two (2) screws to remove the fan together with the bracket. Remove the four (4) screws to remove the module rack fan. 9.2.8 Remove Display Assembly Remove the top plate assembly. Open the service door. Unscrew the three (3) screws fixing the display assembly and the 1 captive screw on the rear of the machine.
  • Page 365 9.2.9 Remove Key Control Board Remove display assembly. Disconnect the cables on the display control board. Remove the six (6) screws fixing the key board, to remove the connected cables and the key control board.
  • Page 366 9.2.10 Remove Work Surface Light Board Remove display assembly. Disconnect the cables on the work surface light board. Unscrew the 3 screws fixing the lamp shade (0625), to remove the lamp shade (0625). Unscrew the three (3) screws to remove the work surface light board.  ...
  • Page 367 9.2.11 Remove the Alarm Lamp Board Remove the display assembly. Remove the cables from the alarm lamp board. Remove the two (2) screws on the alarm lamp board to remove the board. 9.2.12 Remove Encoder Board and Encoder Remove the display assembly. Disconnect the cables connecting the encoder assembly.
  • Page 368 Remove the four (4) screws fixing the encoder board and the connected cables to take out the encoder board. 9.2.13 Remove Display and Touch Screen Remove the display assembly. Unscrew the seven (7) screws fixing the rear cover plate of display. Disconnect the cables connected with the display and the touch screen to take out the display and the touch screen.
  • Page 369 9.2.14 Remove Hardware Box Assembly Remove top cover assembly and top plate assembly. Disconnect the cables on the top light board, and unscrew the four (4) combined screws fixing the power board and one (1) M3 toothed nut to remove the power board. Disconnect the cables and pipes on the VCM assembly, and unscrew the four (4) combined screws to remove the VCM assembly.
  • Page 370 Disconnect the cables and pipes on the VCM assembly, and unscrew the 4 combined screws to remove the VCM pallet. Remove the two (2) stud screws and the one (1) combined screw to remove the main board. Disconnect the pipeline of three-way valve assembly and cables on the VCM, and unscrew the three (3) combined screws to remove the three-way valve assembly.
  • Page 371 Remove power board and main board, and cables connected to mother board. And unscrew the thirteen (13) screws to remove the mother board. Disconnect cables between the fan socket and the mother board and between the filter socket and the mother board. And unscrew the five (5) screws to remove the rear cover plate of hardware box.
  • Page 372 9.2.15 Replace Fuse Remove the covers of fuses by flathead screwdriver according to the direction on the bases of fuse. Insert new fuses, and tighten the covers of fuses by flathead screwdriver. WARNING  Bafore replace fuse, ensure to turn off the system switch and disconnect power cable to avoid electrical shock.
  • Page 373 9.2.17 Remove EFCS flowmeter Open the service door. Disconnect cables and PU pipes on the EFCS flowmeter, and unscrew the three (3) fixing screws to remove the EFCS flowmeter. 9-17...
  • Page 374 9.2.18 Remove EFCS Flowmeter Board Remove the EFCS flowmeter. Unscrew the four (4) screws fixing the EFCS flowmeter assembly and remove the connected cables to take out the EFCS flowmeter assembly. Unscrew the four (4) screws fixing the EFCS flowmeter board to take out the EFCS flowmeter board.
  • Page 375 9.2.19 Remove Flowmeters Remove the EFCS flowmeter assembly. Unscrew the eight (8) screws fixing the flowmeters. Remove the connected cables to take out the two flowmeters. Unscrew the six (6) screws fixing the outlet block assembly to take out the inlet and outlet block assemblies.
  • Page 376 9.2.20 Remove Proportional Valve, Three-Way Valve and Two-Way Valve Remove the EFCS flowmeter assembly. Unscrew the two (2) screws fixing various valves to take out the valve to be replaced. Remove the inlet block. Unscrew the two (2) screws fixing the two-way valve to take out the two-way valve on the inlet block.
  • Page 377 9.2.21 Remove Vaporizer Manifold Open the service door. Disconnect the pipes from the pipeline connected with the vaporizer manifold assembly. Unscrew the four (4) screws, and remove the vaporizer manifold assembly.         9.2.22 Remove Gas Source Inlet Port Assembly Remove the service door and rear cover plate.
  • Page 378 NOTE: There are multiple types of gas supply inlet assemblies. These assemblies can be categorized according to gas supply type (O O \ AIR), connector (NIST\DISS), and electronic pressure monitoring. Refer to the following table: Description Application O2 gas supply inlet assembly 115-030786-01 (NIST/0625/umbrella valve) NIST...
  • Page 379 Air supply inlet assembly DISS/electronic pressure 115-056332-00 (0635/DISS/electronic pressure monitoring) monitoring 9.2.23 Remove Backup Gas Source Inlet Port Assembly Remove the service door and rear cover plate. Disconnect the pipeline connected with the backup gas source inlet port assembly. Unscrew the four (4) screws fixing the metal plate of backup gas source, and remove the backup gas source assembly.
  • Page 380 9.2.24 Remove Backup Cylinder Bracket Remove the service door and rear cover plate. Remove pipeline and coil connected with the backup cylinder bracket. Unscrew the four (4) screws fixing each cylinder bracket to remove one backup cylinder bracket. Refer to the following table for backup cylinder brackets: Description Application Without electronic pressure...
  • Page 381 9.2.25 Remove Cover Plate of Work Surface Remove the service door and rear cover plate. Unscrew the nine (9) captive screws fixing the cover plate of working surface. Disconnect the 83# pipe next to the auxiliary O2, and cables connected to the auxiliary flowmeter.
  • Page 382 Remove set screws of knobs fixing the auxiliary O2 assembly and negative pressure suction to take out the knob. Push the cover plate of work surface forward to remove it. 9-26...
  • Page 383 9.2.26 Remove Exhalation Valve Assembly Remove the cover plate of work surface. Disconnect the pipeline and cables connected with the exhalation valve. Unscrew the two (2) screws to remove the exhalation valve. 9.2.27 Remove ACGO Assembly Remove the cover plate of work surface. Disconnect the pipeline and cables connected with the ACGO assembly.
  • Page 384 9.2.28 Remove Gas Reservoir Assembly Remove the cover plate of work surface. Disconnect the pipeline and cables connected with the gas reservoir. Unscrew the two (2) screws to remove the gas reservoir. 9.2.29 Remove O2 Flush Assembly Remove the cover plate of work surface. Unscrew the four (3) M3X8 combined screws and the four (4) M3X8 countersunk head screws fixing the front panel bracket, to remove the front panel bracket.
  • Page 385 9.2.30 Remove High-pressure Gauge Assembly Remove the cover plate of work surface. Remove the end of coil next to the cylinder bracket. Unscrew the two (2) screws fixing each high-pressure gauge assembly, to remove one coil and one high-pressure gauge assembly from the front end of the machine. There is no pressure gauge assembly for the machine configured with electronic pressure monitoring.
  • Page 386 Disconnect the coil and the high-pressure gauge. 9.2.31 Remove Gas Supply Pressure Gauge Assembly Remove the cover plate of work surface. Remove the pipeline connected with the gas supply pressure gauge assembly. Unscrew the two (2) screws fixing each gas source gauge assembly from the front end of the machine, to remove one gas source gauge assembly.
  • Page 387 9.2.32 Remove Negative Pressure Control Panel Assembly Remove the cover plate of work surface. Remove the pipeline connected with the negative pressure control panel assembly. Unscrew the four (4) screws from the front end of the machine, to remove the negative pressure control panel assembly.
  • Page 388 9.2.34 Remove System Switch Assembly Remove the cover plate of work surface. Disconnect the pipeline and cables connected to the system switch assembly. Unscrew the four (4) screws from the front of the machine, to remove the system switch assembly. 9.2.35 Remove Indicator Light Board Remove the cover plate of work surface.
  • Page 389 9.2.36 Remove Drive Gas Switching Valve Remove the rear cover plate and cart rear cover plate. Disconnect the cables and pipeline of the drive gas switching valve. Unscrew the two (2) screws fixing the drive gas switching valve. 9.2.37 Remove Power Cable Unscrew the three (3) screws on the anti-pulling hook of mains plug, and then remove the power cable.
  • Page 390 WARNING  Bafore replace the power cable, ensure to disconnect the mains plug to avoid electrical shock. 9.2.38 Remove Drawer Pull the drawer out, and move the black switch on the right of the drawer downward and the left of the drawer upward by two hands at the same time, to remove the drawer assembly.
  • Page 391 9.2.39 Remove Air Compressor Loosen the six screws fixing the rear panel of the cart, remove the gas hose, and take out the rear panel. Remove a drawer from the front, loosen the two screws fixing the front panel of the air compressor, and take out the front panel.
  • Page 392 Loosen the four inner hexagon screws fixing the air compressor from the front and rear, and pull out the entire air compressor from behind the cart. For details about disassembly and maintenance of the air compressor, see the service manual. 9.2.40 Remove Cart Slide Remove the drawer.
  • Page 393 Unscrew the four (4) M4X12 combined screws, to remove the presser of the lock of drawer. Unscrew the screw and the nut, to remove the lock of drawer. 9-37...
  • Page 394 9.3 Disassemble Breathing System (not compatible with Pre-Pak) 9.3.1 Remove O2 Sensor Remove one end of O2 sensor cable from the O2 sensor connector on the circuit adaptation block. Remove the O2 sensor assembly from the O sensor connector on the breathing system. 9-38...
  • Page 395 Rotate the O2 sensor shell anticlockwise, to separate the O2 sensor cable and the O2 sensor shell. And then rotate the O2 sensor shell anticlockwise again, to separate the O2 sensor and the shell. 9.3.2 Remove Breathing Tubes NOTE  When disassembling the breathing tube, hold the tube connector at both ends of the tube to prevent damage of the tube.
  • Page 396 Remove the two ends of the breathing tubes from the inspiration/expiration connectors on the breathing system. 9-40...
  • Page 397 9.3.3 Remove Flow Sensor Rotate the rotary cover of the breathing connector anticlockwise. Pull out the breathing connector together with the rotary cover. Pull out the flow sensor horizontally. 9-41...
  • Page 398 The following pictures show the appearance of inspiratory flow sensor assembly and expiratory flow sensor assembly. Expiratory flow sensor assembly Inspiratory flow sensor assembly 9.3.4 Remove Manual Bag Remove the manual bag from the bag arm assembly, as shown below. 9.3.5 Remove Bellows Assembly Turn the bellows housing anticlockwise.
  • Page 399 Lift off the bellows housing to remove it Remove the bellows from the bellows base. 9.3.6 Remove Pop-off Valve Assembly Remove the four locking screws. 9-43...
  • Page 400 Remove the Pop-off cover plate assembly. Remove the rubber pad of Pop-off valve and metal block assembly. 9.3.7 Remove Expiratory Check Valve Assembly Turn the valve cover clockwise to remove it. 9-44...
  • Page 401 Take out the check valve, as shown below. 9.3.8 Remove Inspiratory Check Valve Assembly For the disassembling procedure of inspiratory check valve assembly, see 9.3.7 Remove Expiratory Check Valve Assembly 9-45...
  • Page 402 9.3.9 Remove CO2 Absorbent Canister Hold the rotary handle upward for 90 degrees. Turn the rotary handle anticlockwise for 90 degrees. 9-46...
  • Page 403 Pull the CO2 absorbent canister out from the mounting slot. WARNING  Sodalime is a caustic substance and is a strong irritant to eyes, skin and respiratory system. Affected areas should be flushed with water. If irritation continues after flushing with water, seek medical assistance immediately. 9.3.10 Remove Water Collection Cup Hold the water collection cup and turn it counterclockwise to remove it.
  • Page 404 9.3.11 Remove Airway Pressure Gauge Lift the airway pressure gauge straight up to remove it. 9.3.12 Remove Bag Arm Unscrew the locking nut anticlockwise. Lift the locking nut straight up to remove bag arm. 9-48...
  • Page 405 9.3.13 Remove Breathing System Ensure that the above-mentioned assemblies are disassembled. Then hold the breathing system with one hand. Press down the locking catches on the circuit adapter with the other hand. Remove the breathing system from the circuit adapter forcibly with both hands. NOTE ...
  • Page 406 9.3.14 Remove CO2 Absorbent Canister Connection Block Assembly Turn over the breathing system. Loosen the three screws using inner hexagon spanner. 9-50...
  • Page 407 Remove the lifting device from the breathing system. Turn over the lifting device. Loosen the two screws using inner hexagon spanner. Pull up forcibly to separate the CO2 absorbent canister connection block assembly. 9-51...
  • Page 408 Pull up to take out the lifting device. Lifting device 9.3.15 Remove Back Upper Cover and Back Lower Cover Assemblies Unscrew the six (6) screws as shown in the following picture. Unscrew the knurled thumbnut as shown in the following picture. 9-52...
  • Page 409 Turn over the circle. Pull up to separate the back upper cover assembly. Pull leftwards to take out the back lower cover assemblies. 9.3.16 Remove Front Upper Cover Loosen the six (6) screws on the upper cover. 9-53...
  • Page 410 Loosen the captive screws on the upper cover. Hold the upper cover assembly tightly and pull it up to remove it. 9.3.17 Remove Median Plate Assembly Pull up the median plate assembly to remove it. 9-54...
  • Page 411 9.3.18 Remove Lower Cover Assembly The lower cover assembly is shown as follows. Lower cover assembly 9.3.19 Remove Bag/vent Switch Assembly Remove the upper cover assembly, referring to 9.3.16Remove Front Upper Cover. Turn over the upper cover assembly and remove the three screws securing the bag/vent switch assembly.
  • Page 412 The following picture shows the appearance of bag/vent switch assembly. Remove the three screws shown in the picture. Remove the sealing ring and shaft pin to remove the shaft for bag/vent switch. Remove the sealing ring and shaft pin 9-56...
  • Page 413 Shaft for bag/vent switch Press spring for bag/vent switch Remove the press spring for bag/vent switch and replace the two sealing rings (0030-10-13077). Sealing ring 9.3.20 Remove APL Valve Assembly Remove the lower cover assembly, referring to 9.3.16Remove Front Upper Cover. Remove the two screws to pull out the APL valve assembly.
  • Page 414 The following picture shows the appearance of APL valve assembly. 9.4 Disassemble the Breathing System (compatible with Pre-Pak) 9.4.1 Remove O2 Sensor Remove one end of the O2 sensor cable from the connector on the anesthesia machine. Unplug the O2 sensor from the port on the Breathing System by pulling straight out.
  • Page 415 Turn the black plug counterclockwise to take it out of the housing. And then turn the O2 sensor counterclockwise to take it out of the threaded cup. 9.4.2 Remove Breathing Tubes NOTE  When disassembling the breathing tube, hold the tube connectors at both ends of the tube to prevent damage to the tube.
  • Page 416 9.4.3 Remove Flow Sensor Turn the locking nuts counterclockwise. Pull out the inspiration and expiration connectors together with their locking nuts. And then pull out the flow sensors horizontally. The following pictures show the appearance of inspiratory and expiratory flow sensor assemblies.
  • Page 417 9.4.4 Remove Manual Bag Remove the manual bag from the connector on the breathing system as shown below. 9.4.5 Remove the Absorbent Canister Hold and turn the rotary handle clockwise for 45 degrees. Pull out the absorbent canister horizontally. 9-61...
  • Page 418 WARNING  Sodalime is a caustic substance and is a strong irritant to eyes, skin and respiratory system. Affected areas should be flushed with water. If irritation continues after flushing with water, seek medical assistance immediately. 9.4.6 Remove CO2 Bypass Assembly Remove the absorbent canister as per section 9.4.5.
  • Page 419 Turn the knurled nut counterclockwise to disassemble the drain valve. Drain Valve Stem Drain Valve Body 9.4.8 Remove Bypass Valve and the Trigger Board Remove the CO2 Bypass assembly as per section 9.4.6. Remove the transfer tube. 9-63...
  • Page 420 Unscrew the four screws as shown in the picture and remove the cover plate. Unscrew the four screws as shown in the picture and remove the upper bypass cover. Unscrew the two screws as shown in the picture and remove the trigger board. CO2 Bypass Valve Trigger board 9-64...
  • Page 421 Remove the cramp ring to take out the valve needle. Snap ring Valve Seal 9.4.9 Remove Patient Circle Assembly Remove the CO2 Bypass assembly as per section 9.4.6. Pull the patient circle assembly away from the rotating block assembly. 9.4.10 Remove Bellows Assembly Turn the bellows dome counterclockwise and lift off to remove.
  • Page 422 Remove the bellows from the bellows base. 9.4.11 Remove Pop-off Valve Assembly Remove the bellows assembly as per section 9.4.10. Unscrew the four locking screws as shown in the picture. Hold and pull up the Pop-Off valve cover to remove it. Take out the rubber and metal Pop-Off valve.
  • Page 423 9.4.12 Remove Expiratory/Inspiratory Check Valve Assemblies Turn the check valve cover counterclockwise to remove it. Pull out the check valve as shown in the following picture. 9.4.13 Remove Water Collection Cup Hold the water collection cup and turn it counterclockwise to remove it. 9-67...
  • Page 424 Remove the water collection cup. 9.4.14 Remove Airway Pressure Gauge Lift the airway pressure gauge straight up to remove it. 9.4.15 Remove Bag Arm Unscrew the locking nut counterclockwise and lift straight up to remove bag arm. 9-68...
  • Page 425 Remove the bag arm from the bag arm mount. 9.4.16 Remove the Back Upper Cover and Back Lower Cover Assemblies Unscrew the six (6) screws as shown in the following picture. Unscrew the knurled thumbnut as shown in the following picture. 9-69...
  • Page 426 Turn over the circle. Pull up to separate the back upper cover assembly. Pull leftwards to take out the back lower cover assemblies. 9.4.17 Remove the Front Upper Cover, Median Plate and Front Lower Cover Assemblies Remove the Back Upper Cover and Back Lower Cover Assemblies as per section 9.4.16.
  • Page 427 Loosen the six screws on the upper cover. Loosen the captive screws on the upper cover. Hold the upper cover assembly tightly and pull it up to remove it. 9-71...
  • Page 428 Remove the spring washer and plain washer (note: pay special attention to the spring washer and plain washer when removing them because they easily get loose). Pull up the median plate assembly to remove it. Median Plate Assembly Lower Cover Assembly 9.4.18 Remove Automatic/Manual Ventilation Switch Assembly Remove the upper cover as per section 9.4.17.
  • Page 429 Unscrew the three (3) screws as show in the picture. Remove the O-Ring and pull out the axis pin. Take out the seal and pull out the axis pin Compression spring Axis Remove the compression spring and replace the two seals ( 0030-10-13077). Seal 9-73...
  • Page 430 9.4.19 Remove APL Valve Assembly Turn the locking ring anticlockwise and pull the APL valve assembly straight up to remove it. 9-74...
  • Page 431 9.5 Electrical and Pneumatic Connections After parts disassembling and replacing, refer to the following sections to re-install and re–connect the parts. 9.5.1 Electrical Connections 9.5.1.1 Electrical Circuit Diagram 9-75...
  • Page 432 9.5.1.2 Board List Description 0623 motherboard PCBA 051-000765-02 0621 electronic flowmeter PCBA 0621-30-69351 (three flowtubes configured) 0621-30-78639 (two flowtubes configured) 0621-30-78638 (one flowtube configured) 0623 toplight board PCBA 051-000764-00 0616 monitored signal detection board 051-003166-00 0621 power board 0621-30-78595 0621 main control board 9210-30-30150 0623 battery conversion board PCBA 051-000768-00...
  • Page 433 Description Bag/vent switch Circuit in-position switch CO2 absorbent switch travel switch Pneumatic block assembly Three-way valve Isolation transformer temperature control switch / Isolation transformer radiator fan Auxiliary electrical outlet Fuse 9.5.1.3 Connection Line List Description 0623 battery connection line 009-001455-00 2.25"...
  • Page 434 Description GB socket connection line 0621-20-69608 0623 network connection line 009-001469-00 0623 12.1" AU display data line 009-001470-00 0623 12.1" LG display data line 009-001471-00 Flowmeter three-way valve assembly connection line 0621-20-78648 0623 auxiliary electrical outlet total fuse connection line 009-001472-00 Circuit inside heating connection line 0621-21-78641...
  • Page 435 9.5.2 Pneumatic Connections 9.5.2.1 Pneumatic Connection A: system pneumatic connection diagram (configured with O2, N2O and Air supplies without cylinders) 9-79...
  • Page 436 9.5.2.2 Pneumatic Connection B: system pneumatic connection diagram (configured with O2, N2O and Air supplies with cylinders) 9-80...
  • Page 437 9.5.2.3 Pneumatic Connection C: system pneumatic connection diagram (configured with O2, N2O and Air supplies without cylinders) 9-81...
  • Page 438 FOR YOUR NOTES 9-82...
  • Page 439 Replacement Parts 10.1 Introduction WATO EX-55/65 pro (0628/0627）anesthesia system can be divided into 18 parts according to its structure and functions. Each part contains several replaceable parts. Table 8-1 through Table 8-18 provide the information about the replaceable parts and Diagram 8-1 through Diagram 8-14 give the positions of replaceable parts on WATO EX-55/65 pro (0628/0627).
  • Page 440 10.3 Diagrams and Tables 10-2...
  • Page 441 Figure Part Number Description Remark 115-031133-00 Foot-operated switch (0625) Caster, 5inch with brake 034-000506-00 Caster, 5inch without brake 034-000507-00 034-000353-00 Drawer locker, black 043-007342-00 Work surface cover (0627/with negative pressure) 043-007345-00 Work surface cover (0627/without negative pressure) 010-000088-00 SWITCH Latching 1X90°form V 115-032993-00 Double vaporizer manifold assembly (0625)
  • Page 442 (0627) 115-040110-00 Air high pressure gauge assembly (0627) 115-025663-00 Drawer assembly (0625) 043-006091-00 Front cover of the chassis (0625) 10-4...
  • Page 443 Figure Part Number Description Remark 115-030333-00 AGSS material package (0634 high flow/international) 115-017947-00 Negative pressure suction liquid collecting bottle holder (0632) 041-017805-00 Left slide on the cart (0625) 115-025550-00 Service door assembly (0625) 115-016480-00 Box assembly of module rack 115-018132-00 Pipeline negative pressure inlet assembly (NIST) 115-018133-00...
  • Page 444 045-001620-00 Dustproof foam (0625) 041-016963-00 GCX slide of main unit (left) (0625) 0621-20-78748 Anti pull hook of mains plug Top cover assembly (0627) 115-038712-00 Rear cover plate of hardware box (0625/European standard) 115-025587-00 Cart rear cover (with cylinder support base 042-012631-00 /0625) 034-000507-00...
  • Page 445 Figure Part Number  Description  Qty  FRU Remark No.  O2 cylinder bracket 115-036770-00 assembly (umbrella valve) 115-040738-00 EFCS flowmeter module maintenance package (O2, N2O, Air /0627) 115-040739-00 EFCS flowmeter module maintenance package (O2, Air /0627) 115-040740-00 EFCS flowmeter module maintenance package (O2, N2O/0627) Negative generator 115-017748-00...
  • Page 446 115-056325-00 Air supply inlet assembly (DISS/0627/electronic pressure monitoring) 115-040097-00 Air supply inlet assembly (with pressure switch /DISS/0627) 115-039357-00 Air supply inlet assembly (with pressure switch /NIST/0627) 115-034706-01 Backup O2 supply assembly (0615/umbrella valve) 115-004519-01 O2 supply inlet assembly (with big cylinder) 115-004520-01 N2O supply inlet assembly (with big...
  • Page 447 10.3.2 Hardware Box 10-9...
  • Page 448 Figure Part Number Description FRU Remark 115-025506-00 Battery box assembly (0625) Metal sheet bracket of hardware box 042-014912-00 (0625/silkscreen) 048-004559-00 Cotton cushion of mother plug (0625) 051-002637-00 0627 mother board PCBA cross recess head screw combined assembly M04-051140--- GB/T9074.8 M3X8, green color zinc plating M04-000018--- Stud screw, M3X20+8-8, rust nickel plating...
  • Page 449 10-11...
  • Page 450 Figure Part Number Description FRU Remark Welding joint of hardware box rear cover 042-014913-00 plate (0625/silkscreen) 509B-10-06194 HEADER FUSEHOLDERφ5*20 0509-20-00098 Grounding terminal Serrated lock washer external teeth, M04-021048--- GB/T862.2-19876, green color zinc plating Plain washer-product grade A, M04-021003--- GB/T97.1-2002 6, green color zinc plating Stainless steel hexagonal nut, M04-004401---...
  • Page 451 否 009-005461-00 0625 socket connecting line 10.3.3 Work Surface Figure Part Number Description FRU Remark 043-005409-00 Left decorative plate of cart (0625) 049-000810-00 Exhaust pipe 042-012586-00 Main bracket of work surface Stainless steel plain washer-product 030-000159-00 grade A, GB/T97.1-2002 6 passivation Single coil spring lock washer - normal M04-004504--- type, GB/T93-1987, 6, green color zinc...
  • Page 452 plating Stainless steel hexagon lobular socket M04-051116--- head cap screw, GB/T70.1-2000M6X16 passivation Circuit bracket assembly (disposal soda 115-031143-00 lime canister/0625) 047-015130-00 Circuit upper cover flap (0625) 115-032992-00 Gas reservoir assembly (0625) 043-005403-00 Circuit adapter upper cover (0625) 115-001372-01 Exhalation valve assembly Countersunk flat head screw combined M04-051140--- assembly, GB/T9074.8 M3X8, green...
  • Page 453 033-000239-00 Spring of drive gas hose 0625 pneumatic block and ACGO 009-004807-00 switch line Figure Part Number Description Remark Work surface cover plate (0627/with 043-007342-00 negative suction) Work surface cover plate (0627/without 043-007345-00 negative suction) 041-017483-00 Auxiliary O2 connector (0625) Stainless steel hexagonal nut, M14x1.5 030-000171-00 passivation (customized)
  • Page 454 10.3.4 WATO EX-55 Pro/65 Pro Auxiliary O2 Supply Flowmeter Assembly Figure Part Number Description Remark Auxiliary flowmeter, O2, range: 0 to 082-002107-00 15L/min 0632 total flowmeter backlight board 051-001256-00 PCBA Countersunk flat head screw combined assembly, M04-051158--- GB/T9074.8 M3X6, green color zinc plating Auxiliary flowmeter backlight board 047-014213-00...
  • Page 455 10.3.5 WATO EX-55 Pro/65 Pro Cart Assembly 10-17...
  • Page 456 Figure Part Number Description FRU Remark Chassis assembly (standard/central 115-025662-00 brake/0625) 042-012610-01 Right plate of cart(0625) 042-012620-02 Drawer lock board (0625) 042-012619-00 Presser of drawer lock board (0625) countersunk flat head screw combined M04-051139--- assembly, GB/T9074.8 M4X12, green color zinc plating 034-000353-00 Drawer lock, black 042-011155-00...
  • Page 457 10.3.6 WATO EX-55 Pro/65 Pro Pre-pak Circuit Bracket Assembly 10-19...
  • Page 458 Figure Part Number Description Remark 043-005422-00 Circuit shaft lower cover Stainless steel inner hexagon 030-000718-00 screw.M12X25. passivation Inner hexagon set screw, GB/T80-2000 M04-051078--- M4X8, black 041-017054-00 Pressing plate under circuit Sliding bearing. 32x36x16, flange type, 032-000449-00 plastic, self-lubrication 041-017049-00 Welding joint of circuit support plate hexagon socket cap head screw, M04-051114--- GB/T70.1-2000 M5X12, green color zinc...
  • Page 459 10.3.7 Breathing Circuit Adapter Block Assembly Figure Part Number Description Remark Connecting piece of circuit adapter 041-018676-00 block (0625) M90-000162--- Grab type lock, with micro switch O ring, 8.5X2.0, fluorine rubber, A75 M6M-010006--- black 041-002961-00 Connector of ACGO plug (0616) M6M-010058--- O ring, 16X2, fluorine rubber, A50 black...
  • Page 460 M04-051107--- SUS316 screw, countersunk head cross recessed, without cutting tail, FT3X8, passivation 0601-20-78906 Drive shaft flap 0601-20-78921 Spring of drive shaft M6M-010063--- O ring, 4.7x1.8, fluorine rubber, black, 0601-20-78905 Drive shaft M07-00010S-00 0 limit switch 048-001515-00 Buffer sponge (0623) countersunk flat head screw combined M04-051140--- assembly, GB/T9074.8 M3X8, green color zinc plating...
  • Page 461 Figure Part Number Description Bellows housing 801-0631-00054-00 Bellows assembly 801-0601-00001-00 Paw gauge 115-025563-00 Expiratory flow sensor assembly 801-0631-00056-00 Inspiratory/expiratory connector 801-0631-00057-00 Breathing circuit unit 115-025565-00 Inspiratory/expiratory connector turncap 801-0631-00059-00 Water collection cup 801-0631-00058-00 Inspiratory flow sensor assembly 801-0631-00060-00 O2 sensor cable 801-0631-00102-00 APL valve assembly 115-046754-00...
  • Page 462 10-24...
  • Page 463 Figure Part Number Description FRU or not? CO2 absorber hose 801-0631-00092-00 Drain valve of CO2 absorber 801-0631-00112-00 base CO2 absorber base 801-0631-00100-00 CO2 absorber canister 801-0631-00066-00 CO2 bypass assembly 115-036378-00 10.3.9.2 Absorbent Canister Assembly Not Compatible with Pre-Pak 10-25...
  • Page 464 Figure Part Number Description Remarks or not? Absorbent canister assembly 115-030838-00 (0625) 0601-20-78838 Left hook 115-030837-00 0601-20-78836 Hook ram 0601-20-78827 Lifting tray SUS316 countersunk flat head M04-051118--- screw, GB/T818-2000 M3X10 Lifting device base 043-006236-00 (0625/ silkscreen) SUS316 single coil spring lock M04-021068--- washer - normal type, GB/T93-1987 4...
  • Page 465 10.3.10 Expiratory Check Valve and Inspiratory Check Valve Figure No. Description Part Number Check valve dome 801-0631-00061-00 Valve cover 801-0631-00110-00 Disc 801-0631-00111-00 10.3.11 O2 Cell Assembly Figure No. Description Part Number O2 cell cover 801-0631-00090-00 MedicelMOX-2 O2 sensor 0611-10-45654 O2 cell cable 801-0631-00091-00 10-27...
  • Page 466 10.3.12 WATO EX-55 Pro/65 Pro Display Assembly Figure Part Number Description FRU Remark 043-007351-00 Silkscreen of 15” screen (0627) 051-000415-00 0631 alarm lamp board PCBA Copper shaft encoder board 801-0613-00035-00 (maintenance spare parts) 115-034073-00 Encoder assembly (0635) Touchscreen, resistance type, 15″ 021-000287-00 five-line 115-040737-00...
  • Page 467 10.3.13 WATO EX-55 Pro/65 Pro Backup flowmeter assembly Figure Part Number Description FRU Remark 082-002459-00 Backup O2 oxygen flowmeter 047-018260-00 Backlight board insulation film (0627) Total flowmeter backlight board 047-009077-00 (0632) 0632 total flowmeter backlight board 051-001256-00 PCBA 10-29...
  • Page 468 10.3.14 Base Assembly Figure Part Number Description Remark 041-017056-00 Transmission shaft of the front wheel (0625) M04-000202--- Plain washer-product grade A, GB/T97.1-2002 8, green color zinc plating M04-021031--- Stainless steel single coil spring lock washer - normal type, GB/T93-1987 8, passivation M04-051119--- Hexagon socket countersunk head screw, GB/T70.1-2000M8X16, green color zinc...
  • Page 469 M04-051140--- countersunk flat head screw combined assembly, GB/T9074.8M3X8, green color zinc plating 032-000112-00 Sliding bearing. 12x14x18X10, flange type, plastic, self-lubrication 044-000712-00 Transmission shaft level (0625) M04-051073--- Hexagon socket countersunk head screw, GB/T70.1-2000M4X12, green color zinc plating M04-021005--- Single coil spring lock washer - normal type, GB/T93-1987 4, green color zinc plating 042-015313-00 Pedal shaft Support piece of 2(0625)
  • Page 470 Figure Part Number Description FRU Remark M04-051073--- Hexagon socket countersunk head screw, GB/T70.1-2000 M4X12, green color zinc plating M04-021005--- Single coil spring lock washer - normal type, GB/T93-1987 4, green color zinc plating M04-004702--- Plain washer-product grade A, GB/T97.1-2002 4, green color zinc plating 041-017802-00 Driving medium of brake (0625) 041-017061-00...
  • Page 471 042-015310-00 Support assembly 1 of brake (0625) 032-000447-00 Sliding bearing. 12x14x6, sleeve type, plastic, self-lubrication 044-000657-00 Connecting piece of brake (0625) M04-051062--- Stainless steel hexagon socket countersunk head screw, GB/T70.1-2000 M5x16, passivation 044-000593-00 Brake crank (0625) 10.3.15 Tubes Description 5.5mmX8mm green PU tube (polyether 082-000521-00 4mmX6mm green PU tube (polyether 082-000522-00...
  • Page 472 10.3.16 O-ring Description Part Number Remarks Valve port sealing cushion 049-000140-00 For the CO2 bypass shaft CO2 bypass assembly 049-000142-00 washer Exterior washer of the 049-000143-00 absorber canister Interior washer of the 049-000145-00 absorber canister CO2 absorber hose 049-000146-00 Pop-off rubber pad 0601-20-69771 Bottom washer of the 049-000243-00...
  • Page 474 PN: 046-009688-00 (4.0)

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