Resvent iHope RS Series Service Manual
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Resvent iHope RS Series Service Manual

Resvent iHope RS Series Service Manual

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iHope Ventilator Service Manual
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Summary of Contents for Resvent iHope RS Series

  • Page 1 iHope Ventilator Service Manual RS series...
  • Page 2 Resvent Marketing Department. While the information set forth is believed to be accurate, it is not a substitute for the exercise of professional judgment. Nothing in this manual shall limit or restrict in any way Resvent’s right to revise or otherwise change or modify the equipment (including its software) described herein, without notice.
  • Page 3 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. Observance of the manual is a prerequisite for proper equipment maintenance and prevents equipment damage and personal injury.

  • Page 4: Table Of Contents

    Contents 1 Safety............................. 1 1.1 Safety Information......................1 1.1.1 Definitions........................1 1.1.2 Warning........................... 1 1.1.3 Caution..........................3 1.1.4 Note..........................3 1.2 Symbols..........................3 2 Theory of Operation for Pneumatic..................6 2.1 Pneumatic Circuit......................6 2.1.1 Overview of the Pneumatic System................6 2.1.2 Pneumatic Circuit Diagram................... 6 2.1.3 Theory of Operation of the Pneumatic Subsystem...........
  • Page 5 6.2.2 Ventilation Control test....................48 6.2.3 Sensor Zero Point test....................50 6.2.4 Flow Sensor Accuracy test..................50 6.2.5 Pressure Sensor Accuracy test.................51 7 Calibration..........................52 7.1.1 Patient Flow Calibration....................53 7.1.2 O2% Calibration......................55 7.1.3 O2 Proportional Valve Calibration................57 7.1.4 Pressure and Flow Zeroing..................58 7.1.5 Pressure Calibration....................60 8 Troubleshooting........................
  • Page 6 9.2.25 Replace the Switch....................99 10 Performance Verification....................101 10.1 System Inspection...................... 101 10.2 Power Failure Alarm Test..................101 10.3 O2 Pipeline Test......................101 10.4 System Test.........................102 10.5 Spontaneous Breathing Supporting Test............... 102 10.6 Humidifier Performance Test..................102 10.7 Alarm Tests......................... 102 10.7.1 Prepare for Alarm Tests..................102 10.7.2 High Pressure Test....................
  • Page 7 11.9.2 Parts List........................115 11.10 Exp. Valve Seat Assembly..................116 11.10.1 Exploded View....................... 116 11.10.2 Parts List.........................116 11.11 Exp. Valve Assembly for adult................116 11.11.1 Exploded View....................... 116 11.11.2 Parts List.........................116 11.12 Exp. Valve Assembly for infant................117 11.12.1 Exploded View.......................117 11.12.2 Parts List.........................117 11.13 Rinse box Assembly....................

  • Page 8: Safety

    1 Safety Read this information before servicing the ventilator. This section covers general safety information only. Safety information that applies to a specific task is included in the procedure description for that task. 1.1 Safety Information 1.1.1 Definitions WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
  • Page 9 The ventilator should not be positioned in a way that makes it difficult to disconnect  from mains power if necessary. Disconnect from supply mains by removing the power cord from the wall outlet. Remove the protective covers from the ventilator only to perform required service ...

  • Page 10: Caution

    1.1.3 Caution The ventilator is intended for use by healthcare professionals only.  At the end of the ventilator service life, the equipment and its accessories, must be disposed  of in compliance with the guidelines regulating the disposal of such products. Grounding reliability can only be achieved when equipment is connected to an ...
  • Page 11 Symbol Definition Manufacturer. Date of Manufacture. Serial number. Temperature limitations at transport and storage. Humidity limitations at transport and storage. Atmospheric pressure at transport and storage. Follow instruction for use. This label on the device points the user to the operator’s manual for complete information.
  • Page 12 Symbol Definition RS-232 connector HDMI connector. USB connector Inspiration connector Expiration connector Lock Unlock Nebulizer connector Proximal pressure port Alarm Audio pause AC power indicator light. Battery LED...

  • Page 13: Theory Of Operation For Pneumatic

    2 Theory of Operation for Pneumatic 2.1 Pneumatic Circuit 2.1.1 Overview of the Pneumatic System The pneumatic system consists of three parts: inspiratory limb, patient tube, and expiratory limb. The inspiratory limb can be further divided into gas supply subsystem, nebulizing subsystem, blower box subsystem, and inspiratory valve subsystem.
  • Page 14 High-pressure O2 O2 connector, NIST/DISS optional, supply gas O2(High) inlet pressure is 2.8-6bar Filters foreign substance in the high-pressure O2 Filter supply Dust filter Filters dust in the Air supply HEPA filter Filters bacteria and viruses in the Air supply Pfilter Pressure sensor Monitors vacuum at the Air inlet...

  • Page 15: Theory Of Operation Of The Pneumatic Subsystem

    Differential pressure Pflow Expiratory differential pressure sensor sensor Expiratory pressure Exp. P Expiratory pressure sensor sensor PEEP resistor Restricts PEEP flow PEEP Proportional solenoid adjust PEEP pressure Valve valve Expiratory valve Controls system PEEP PEEP pressure PEEP P PEEP pressure sensor sensor 2.1.3 Theory of Operation of the Pneumatic Subsystem According to structural composition and function, the pneumatic system of the ventilator...
  • Page 16 The gas supply subsystem is the starting part of the ventilator’s pneumatic circuit. It introduces external O2 and room air into the machine. A dust filter is necessary at the Air inlet as there is dust and foreign substance inside the room air. Meanwhile, to filter the bacteria and viruses inside the room air, HEPA filter is placed at the Air inlet to ensure the air entering the machine is clean and aseptic.
  • Page 17 and good repeatability of solenoid proportional valve at the rear end. The O2 inlet assembly is as shown below. Nebulizing Subsystem The nebulizing control subsystem controls the on-off of nebulized gas flow via NCV, to realize control of nebulizer by nebulized gas flow (nebulizer needs to be configured separately and is independent of the ventilator main unit).
  • Page 18 Blower Box Subsystem The schematic diagram of the blower box subsystem is as shown below. The blower box subsystem mixes Air and O2 and delivers the mixed gas to the lower level assembly. The blower box subsystem is composed of labyrinth chamber, blower, heat exchanger, HEPA filter and negative pressure sensor.
  • Page 19 Inspiratory Valve Subsystem The schematic diagram of the inspiratory valve subsystem is as shown below. The inspiratory valve subsystem is composed of inspiratory valve main body, pressure release valve, check valve and patient connector. This module mainly has following functions. First, it can release pressure to prevent the pressure of the pneumatic system from exceeding the preset pressure.
  • Page 20 order to pass the valve port. This dynamic process finally guarantees that the airway pressure is a setting value (this value corresponds to the control current of the proportional valve). During the inspiratory phase, the system gives the proportional valve control current to seals the valve.

  • Page 21: Pneumatic Connection

    2.2 Pneumatic Connection 2.2.1 Pneumatic Connection Diagram 2.2.2 Tubes List Length No. Name Diameter(mm) Assembly Qty. (mm) L1= 22±1 Silicone tube 4.0x2.0 Main control board 1004-000012-00 L2=143±1 Y shape connector 0-1 Silicone tube 4.0x2.0 and Variable 26±1 1004-000012-00 diameter connector Variable diameter 0-2 Silicone tube 3.0x0.7...
  • Page 22 connector Pressure connector Silicone tube 4.0x2.0 25±1 1004-000012-00 2-1 silicone tube 4.0x2.0 Rinse box assembly 1 160±1 1004-000012-00 2-2 Silicone tube 4.0x2.0 SOL2 200±1 1004-000012-00 L and Y shape 2-3 Silicone tube 4.0x2.0 25±1 1004-000012-00 connector PU tube 6.0x4.0 Nebulizer Nozzle 160±5 11003-000001-00 PU tube...

  • Page 23: Theory Of Operation For Electronic

    3 Theory of Operation for Electronic 3.1 System Schematic Diagram The block diagram of the hardware system is as shown below. The connection lines in the diagram indicate the connection between hardware boards and that between modules. The hardware system is divided into the following modules: power module, main board power management module, parameter module, main control module, protection module, extended module, display module and gas parameter module.

  • Page 24: Hardware Block Diagram

    Main control module: includes main core board and peripheral drive interface etc.; fulfills man-machine interaction of the ventilator, data interaction with other modules and subsystems; extends USB, network and HDMI interfaces. Display module: includes includes LCD screen, touchscreen panel and driver board, alarm light board, encoder board and TP-key board;...

  • Page 25: Power Supply System

    3.3 Power Supply System 3.3.1 Power Supply System Block 3.3.2 Power Supplies Distribution Power supplies for hardware boards and their parts +3.0V；+3.3V；+5V；+12V；+32V；-5V Parameter module Protection module +3.3V；+5V； Main core board Extended module +3.3V；+5V；+12V； TP-key board +3.3V Alarm light board +3.6V Encoder board Touchscreen driver board Display LCD...

  • Page 26: Board Function

    Turbine +32V(max) Hall sensor Vacuum sensor board +3.3V Mainstream CO2 module Sidestream CO2 module 3.4 Board Function 3.4.1 Power Boards The power module includes AC-DC board, DC-DC board. Their functions are: AC-DC board: transforms the external AC input power into DC power (nominal value ...
  • Page 27 DC-DC Board J7 connector of DC-DC board is DC input connector. It is defined as follows: Pin No. Signal name Signal description Remark DC-IN- Negative terminal of external DC input signal DC-IN- DC-IN+ Positive terminal of external DC input signal DC-IN+ J4 connector of DC-DC board is the connector with intelligent battery1.
  • Page 28 J3 connector of DC-DC board is the connector with cooling fan. It is defined as follows: Pin No. Signal name Signal description Remark +12V Power of the fan Fan pwm output Output signal of fan speed Input signal to control the fan Fan pwm in speed J2 connector of DC-DC board is the connector with switch button.

  • Page 29: Main Board

    3.4.2 Main Board The main board includes main board power management module, main control module, parameter module, protection module, extended module. It fulfills the most function of the ventilator. Power Management Module The main board power management module provides the power supply for other parts of the main board.
  • Page 30 +V12 Power supply for cooling fan Ground Ground Ground Ground Ground Ground Ground AC_LED Control signal of AC indicator light Serial port signal of main core board USART1_TX transmitting to power board Control signal of battery indicator BAT_LED light Serial port signal of main core board USART1_RX2 receiving from power board Buzzer control signal from power...
  • Page 31 J66 is core board debug port. It is defined as follows: Pin No. Signal name Signal description Remark No internal connection No internal connection +V3.3_MAIN Power supply Ground Serial port signal of core board UART1_TXD transmitting to external PC Serial port signal of core board UART1_RXD receiving from external PC USB3 is external USB connector.
  • Page 32 CLK- TMDS Clock- consumer electronic control No internal connection Clock line for Display Data Channel Data line for Display Data Channel / DDC_GND Display Data Channel Ground Power supply Hot Plug detect J10 is the connector between main board and display. It is defined as follows: Pin No.
  • Page 33 Ground LVDS1 DIFFERENTIAL DATA LVDS1D0- LINE0- LVDS1 DIFFERENTIAL DATA LVDS1D0+ LINE0+ LVDS0 DIFFERENTIAL DATA LVDS0D3- LINE3- LVDS0 DIFFERENTIAL DATA LVDS0D3+ LINE3+ LVDS0 DIFFERENTIAL CLOCK LVDS0C- LINE- LVDS0 DIFFERENTIAL CLOCK LVDS0C+ LINE+ Ground Ground LVDS0 DIFFERENTIAL DATA LVDS0D2- LINE2- LVDS0 DIFFERENTIAL DATA LVDS0D2+ LINE2+ LVDS0 DIFFERENTIAL DATA...
  • Page 34 COM1 is external nurse call connector. It is defined as follows: Pin No. Signal name Signal description Remark No internal connection Serial port transmitting signal of MTXD1 main core board Serial port receiving signal of main MRXD1 core board Keyin reserved Ground No internal connection...
  • Page 35 HALL1 Hall position signal H1 VDD5V Hall sensor power supply Turbo blower drive signal A Ground HALL3 Hall position signal H3 Ground Turbo blower drive signal C Turbo blower drive signal B NTC_IN Thermistor J50 is the connector for zero valve. It is defined as follows: Pin No.
  • Page 36 J63 is the connector for Insp. hold valve. It is defined as follows: Pin No. Signal name Signal description Remark Negative terminal of Insp. hold hold _Valve_N valve No connection Positive terminal of Insp. hold hold _Valve_P valve J45 is the connector between O2 flow sensor and parameter board. It is defined as follows: Pin No.

  • Page 37: Display Module Boards

    J1 is the connector for vacuum sensor adapter board. It is defined as follows: Pin No. Signal name Signal description Remark Ground Ground Clock line of vacuum sensor I2C2_SCL I2C connector Data line of vacuum sensor I2C I2C2_SDA connector Vacuum sensor power supply, VDD3V3 3.3V Protection Module...
  • Page 38 J3 is the connector between button control board and monitoring module main board. It is defined as follows: Pin No. Signal name Signal description Remark Control signal of AC indicator DC_LED light Control signal of battery AC_LED indicator light Serial port signal of indicator USART1_TXD board transmitting to main core board...
  • Page 39 J3 is the connector between encoder board and indicator board. It is defined as follows: Pin No. Signal name Signal description Remark ENCODE_A Encode signal A ENCODE_B Encode signal B ENCODE_S Encode signal S Ground J2 is the connector between touchscreen control board and indicator board. It is defined as follows: Pin No.
  • Page 40 J1 is the connector between alarm light board and indicator board. It is defined as follows: Pin No. Signal name Signal description Remark +V3.3 3.3V power supply LED_B Control signal of blue light LED_G Control signal of green light LED_R Control signal of red light Encoder Board Select and confirm touch buttons on the IHOPE ventilator display.

  • Page 41: Electrical Connection

    3.5 Electrical Connection 3.5.1 Electrical Connection Diagram A hollow arrow indicates connection via board-board connectors while a solid arrow indicates connection via cables. “Bxx” indicates self-made board and “Sxx” indicates purchased material.  “#xx” indicates cable material.  3.5.2 Electrical Connection List Description RS300AC-DC board AC input connection line 05602-000002-00...
  • Page 42 RS300 Touchscreen connection line RS300 Display module connection line 05699-000003-00 RS300 PEEP proportional valve connection line 05603-000004-00 RS300 O2 proportional and nebulizer valve connection 05603-000013-00 line RS300 HOLD valve connection line 05603-000014-00 RS300 Pressure release valve connection line 01701-000003-00 RS300 Autozero 2/3-way valve connection line 05603-000015-00 RS300 O2 flow sensor connection line 05603-000003-00...
  • Page 43 RS300 indicator board PCBA 30101-000004-00 RS300 main board PCBA 30101-000003-00 RS300 Touch key 30101-000007-00 board PCBA RS300 Encoder board PCBA 30101-000005-00 RS300 alarm light board PCBA 30101-000006-00 RS300 vacuum sensor board PCBA 30101-000001-00 Note: For cable material which contains the corresponding purchased component, P/N is the P/N of the cable material.

  • Page 44: Maintenance Menu

    4 Maintenance Menu A password is required to access different modes within the ventilator machine. Hospital password:1234  Factory password:1013  4.1 Hospital Setup This section introduces the functions mainly used by the hospital equipment maintenance personnel. It includes these functions: language, unit, gas supply, defaults settings, transfer settings, export, interface setting, system information.

  • Page 45: Export Patient Data

    Select [Export] to save the ventilator’s current settings and defaults to the USB memory. Select [Import] to load the settings in the USB memory to the ventilator. 4.1.6 Export Patient Data This function is used for data export, which means to export patient demographics, current setting parameters, current alarm limits, and trend data of the ventilator in the format of “html”.

  • Page 46: System Information

    If no setting is made for [Alarm Level] or [Alarm Type], nurse call signals will not be triggered whatever alarm occurs。 WARNING Do not rely exclusively on the nurse call system for alarm notification. Remember  that the most reliable alarm notification combines audible and visual alarm indications with the patient’s clinical condition.
  • Page 47 Set altitude. When the atmospheric pressure sensor is faulty, the Altitude atmospheric pressure can be calculated based on altitude. Altitude Unit Set altitude unit, including two options: m and ft. Blower Life Span Set blower life span. Clear Blower Running Click this button after replacing the blower to clear the blower Time running time.
  • Page 48 Nebulizer Nebulizer Time P-V Tools Pstart P-V Tools Pmax P-V Tools Flow Procedure P-V Tools Vlimit P-V Tools History Loop P-V Tools reference Loop Recruitment Tool △P-insp Calibration-Pressure Calibration Device Calibration Calibration-Exp. Valve Calibration reference Maintain Setup Correction Mode Setup Custom Parameter Screen Screen Layout...

  • Page 49: Factory Calibration

    Version Information In [Versions] menu, you can view the version information of the software currently used by each module. 4.3.2 Factory Calibration The factory calibration menu provides access to the following: zeroing, flow calibration, pressure calibration, Exp. valve calibration, O2 calibration. For details, refer to 7Calibration.

  • Page 50: Software Upgrade

    5 Software Upgrade Warning If you remove the memory device before the files are successfully transferred, you  must reinitialize the USB port by powering the ventilator off and on again. CAUTION Software upgrade and configuration activation can be performed by authorzied ...

  • Page 51: Problems And Recommended Actions

    5.2 Problems and Recommended Actions Failure Possible cause Recommended solution description Insert the USB memory into the USB memory is not inserted. USB port of the Unable to find USB memory is faulty. ventilator. USB device The USB port of the ventilator is Replace with a faultless USB damaged.

  • Page 52: Preventive Maintenance

    6 Preventive 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 53 Remove the expiratory valve diaphragm at the tail with hand and replace with a new service part. Do not damage the diaphragm during replacement. Note that the diaphragm is evenly snapped in the ring recess of the expiratory valve plastic part. HEPA filter Replacement Replace the HEPA filter every 12 months as required.

  • Page 54: Periodically-Maintained Parts

    6.1.2 Periodically-Maintained Parts S/NP/N Description Qty. Remarks Lithium battery 05502- 1 or Replace after two years or when the system 000001-00 gives the alarm of “Battery failure”. ion14.4V6900mAh Replace after the blower has worked for 20000 60201- Blower box hours or when the system gives the alarm of 000010-00 assembly “Blower Need...

  • Page 55: Ventilation Control Test

    S/N Test item Description Requirements to pass the test The deviation between the actual speed of the Test the speed of the Blower test monitored blower and the control speed is less blower. than ±10% of the control speed. Given the blower’s speed constant, the Inhalation Test the inspiratory measured fluctuation of Insp.
  • Page 56 The tests are to check the consistency between the machine setting values and measured values, the working state of the ventilator, and the alarms so as to determine if this ventilator operates normally. Volume Control Ventilation test This test is to check if the ventilator can provide volume control ventilation, including tidal volume control, feedback and measurement, as well as correct ventilation alarms.

  • Page 57: Sensor Zero Point Test

    6.2.3 Sensor Zero Point test NOTE When PEEP is set to 0, if the zero point value of the patient pressure sensor has an  error, the baseline of the pressure waveform is not at the zero point in ventilation status.

  • Page 58: Pressure Sensor Accuracy Test

    Set flow of blower setting. Increase the flow to fall within the following ranges respectively: (3 ± 0.5) L/min, (10± 1) L/min, (20 ± 1) L/min, (30 ± 2) L/min, (60 ± 3) L/min. Record the measured flow values of the insp flow sensor and patient flow sensor of each setting point under stable state.

  • Page 59: Calibration

    7 Calibration NOTE Perform the corresponding calibration if any of the system tests described in 5.2  System Test is failed. After replacing the main board, valve, or sensors, perform the corresponding  calibration as described in this chapter. The calibration data can be seen in the factory calibration menu. ...

  • Page 60: Patient Flow Calibration

    Patient flow waveform deviates from the baseline of Calibrate the zero-point Pressure and flow zero. deviation of the pressure sensor zeroing and flow sensor. Or pressure waveform looks strange. 7.1 Patient Flow Calibration NOTE Factory flow calibration is necessary after replacing the main board. ...
  • Page 61 Select [Setup] → [Maintain]and enter the required password. Select [Sensor] → [ Calibration] → [Flow]. Select [Patient Flow Calibration] in the left box. Connect the hoses and insert the patient flow sensor into the Y piece port, make sure the other port of the sensor opens to air. Select [Start] to start factory flow calibration.

  • Page 62: O2% Calibration

    them. 4. Check if the three-way valves are correctly connected. If not, reassemble them. 1. Check if the sampling tubes are Patient flow sensor zero point twisted. If yes, untwist them. error If error 312 persists, replace the main board. 1.
  • Page 63 Make sure that high-pressure O2 supply is connected and enough. Make sure the outlet of Insp valve and the air inlet of machine are not blocked. Select [Start] to start factory O2% calibration. 7.2.2 Error Codes and Corrective Actions Error Cause Corrective Action Code...

  • Page 64: O2 Proportional Valve Calibration

    7.3 O2 Proportional Valve Calibration NOTE Calibrate O2 proportional valve when the valve or O2 flow sensor or the main board  is replaced. Calibrate O2 proportional valve when a great deviation of O2 concentration  monitored value still occurs even though the O2 cell is replaced. 7.3.1 Calibration Procedures To perform factory O2 proportional valve calibration, Select [Setup] →...

  • Page 65: Pressure And Flow Zeroing

    7.4 Pressure and Flow Zeroing Zeroing is necessary when pressure or flow waveform deviates from the baseline. During the operation of the ventilator, pressure and flow are zeroed automatically at a specific interval. Pressure and flow can also be zeroed manually in the factory maintenance menu.
  • Page 66 valve status voltage. It is not in 2. If step one does not work, replace the range of ON. the valve and then conduct zeroing. Replace the main board. Error of patient flow high- pressure end zeroing three-way valve status voltage. It is not in the range of OFF.

  • Page 67: Pressure Calibration

    pressure sensor is lower than the threshold of previous zero point. 7.5 Pressure Calibration NOTE Factory pressure calibration is necessary when the main board is new made and  never be calibrated. When a great deviation (deviation is larger than 0.4cmH2O and 4% of the monitored ...
  • Page 68 Connect VT Plus calibration line, as shown below. Pneumatic connection. Connect the calibration pneumatic circuit, as shown below. Connect the inspiratory port and expiratory port with hoses and occlude the Y piece end. Connect the airway pressure sampling line to LOW PRESSURE “+” pressure sampling port of VT Plus by using pneumatic connection fixture.
  • Page 69 Connect the calibration line at the back of the ventilator (RS232 port). Connect PF300 calibration line as shown below. Connect the calibration pneumatic circuit. Connect the inspiratory port and expiratory port with hoses and occlude the Y piece end. Connect the airway pressure sampling line to PF300 by using pneumatic connection fixture.
  • Page 70 Error Codes and Corrective Actions Error Cause Corrective Action Code 1. Check the calibration device setup and communication cable Calibration device communication connection. error Check the correct standard device is selected on the calibration interface. Calibration device zero-point pressure error. The zero point Zero the calibration device correctly pressure of calibration device is before calibration.
  • Page 71 Insp. pressure sensor calibration 1. Check for leakage during table AD is not monotone calibration. 2. Check if the sampling line of Insp. pressure sensor resolution inspiratory pressure sensor is error properly connected and not twisted. Reassemble the sensor sampling Diff.

  • Page 72: Troubleshooting

    8 Troubleshooting 8.1 Introduction In this chapter, ventilator failures are listed along with possible causes and recommended actions. Refer to the tables below to check the ventilator, isolate and eliminate the failures. Once isolating the part you suspect defective, refer to 9Repair and Disassembly to disassemble the equipment, and repair and replace the defective part.
  • Page 73 are not connected. Re-do pressure calibration. Insp. pressure and Make sure that the insp. pressure and peep peep pressure sensor pressure sensor sampling lines are in good sampling lines are not condition (not broken) and are properly connected. connected or are leaky. Make sure that the PEEP proportional valve power Exp.

  • Page 74: Technical Alarms

    error on the valve diagnostic screen. If yes, replace the pressure release valve and re-do system check. Replace the VCM. 8.3 Technical Alarms Before troubleshooting the ventilator, check for technical alarm message. If an alarm message is presented, eliminate the technical alarm first. The following sections detail how to troubleshoot technical alarms related to the ventilator.
  • Page 75 1. Check if the patient tube is obstructed. If yes, dredge it. 2.Check the Accuracy of Flow Sensor to Patient circuit Patient tube is check the flow sensor. If it is inaccurate, 1007 High occluded obstructed. perform calibration again. 3. Check the Accuracy of Pressure Sensor to check the pressure sensor.
  • Page 76 5cmH2O. Check if high pressure is connected and is enough. Oxygen O2 supply is Diagnose if the O2 proportional valve is 1016 High supply failed insufficient. abnormal on the valve diagnostic screen. If yes, replace the O2 proportional valve. Replace the main board. Spontaneous breathing fails to satisfy the exp.
  • Page 77 Check if the temperature of machine working environment exceeds the factory specified maximum working temperature, which is 40℃. The blower Check if the fan air intake vent and air High blower temperature 1029 High exhaust vent are occluded. If yes, clear the temperature exceeds the foreign matter and dust.
  • Page 78 Fault (1055) released valve valve. failure 1. Check if the check valve works normally. If not, replace the check valve. Technical 1056 Insp. limb failure 2. Check the insp. flow sensor. High Fault (1056) 3. Replace the check valve or insp. flow sensor and perform calibration.
  • Page 79 speed etc.), replace the fan. 3.If the above two items are eliminated, check if the battery is normal. 4.If the failure persists, replace the DC-DC board. Check the external power connection. If the external power supply is normally connected and the voltage is normal, Running on Battery is being check the connection between external...
  • Page 80 failed, charge. temperature Battery2 recharge Battery 2 temp. 2014 failed, error. Unable to Replace battery 2. temperature charge. Technical Battery 1 charge 2015 Replace battery 1. High Error (2015) failure Technical 2016 Battery 1 aging Replace battery 1. High Error (2016) Battery 1 Technical 2017...

  • Page 81: Diagnostic Test

    4. Check if the software version is compatible. If not, upgrade the correct software version. 1. Check if the key board and core board are not in good contact. If yes, re-plug or replace the communication cable. Key board 2. If the failure persists, check the Technical 3007 communication...

  • Page 82: Troubleshooting Methods

    Connect the pneumatic circuit according to the type of sensor or valve to be checked.  Constant-flow connection method: connect the ventialtor tubes by following the constant-flow connection method to check the flow sensors and inspiratory valve. For details, refer to 6.2.4Flow Sensor Accuracy Test. ...
  • Page 83 To diagnose the sampling line connection error of patient flow sensor:  Increase the DA setting of the blower gradually to 10L/Min. The AD value of the flow sensor should also increase. With the gradual increase of gas supplied,  If the AD value of one flow sensor decreases gradually, it is possible that the two sampling lines of the flow sensor are connected reversely.

  • Page 84: Pneumatic System Failures

    much, it is possible that the PEEP valve is faulty, the sampling line is disconnected, or the valve drive circuit has an error. To locate if there is a problem with the valve drive circuit, you can check the status value of PEEP valve in the diagnostic menu.

  • Page 85: Pneumatic Failures List

    1004-000012-00 Tube. Silicone,4mmX2mm Tube. Adult silicone tube 450mm Hexagonal wrench Gas flow analyzer VT-PLUS 8.5.2 Pneumatic Failures List The pneumatic system failures are as listed below. Failure description Possible cause Troubleshooting Reference The output pressure setting of regulator is Re-set the regulator output The output pressure inaccurate.
  • Page 86 and insp. valve, flushing is assembled properly. limb, O2 sensor sampling Replace the blower limb etc.) box assembly. The blower box is leaky. O-ring aging Replace the insp. The pressure release valve assembly. Leakage of insp. valve diaphragm is aged Replace the insp.

  • Page 87: Gas Supply Subsystem

    8.5.3 Gas Supply Subsystem Regulator Output Pressure is Inaccurate The regulator reduces supply gas pressure and stabilizes the effect of supply gas pressure fluctuation upon the rear end. After long term of use, the output pressure of the ventilator regulator may be inaccurate. Generally, you need to check the regulator output pressure under the following situations: Perform machine inspection at the client end.
  • Page 88 Nebulizer Is Faulty or Flow is Abnormal The nebulizer switch valve controls ON/OFF of nebulized gas flow. To judge if the nebulizer function is normal, Connect high pressure O2 connector to the high pressure O2 supply or cylinder. Make sure that the pressure of external gas supply satisfies the ventilator requirements and that gas supply is enough.

  • Page 89: Maximum Output Flow Is Small

    sufficient. In diagnosis mode, adjust D/A of O2 proportional valve to 71% to let the O2 proportional valve fully open. Observe if the O2 flow display on the ventilator screen is ≥145L/min. If the maximum flow output value is small, generally, it is caused by the internal failure proportional valve.

  • Page 90: Inspiratory Valve Assembly Leakage

    8.5.6 inspiratory Valve Assembly Leakage If the Insp. valve is leaky, troubleshoot as follows. If clear leakage sound is heard, listen to find the leakage so as to confirm the faulty part. Remove the Insp. valve from the machine. Perform visual inspection to see if the sealing ring and the diaphragm of pressure release valve on the Insp.

  • Page 91: Patient Flow Test Has An Error

    8.5.8 Patient Flow Test has an Error If patient flow test has an error, and there is no flow sampling data in the sampling limb or there is great deviation, troubleshoot as follows. Observe if the flow sensor diaphragm is normal. If it is broken or damaged, replace the flow sensor.

  • Page 92: Hardware And Electrical System Failures

    8.6 Hardware and Electrical System Failures Failure Possible cause Recommended action description Check and make sure of the The AC power supply is not connected At startup, AC correct connection of AC or the fuse of the AC mains inlet is indicator light power supply.
  • Page 93 The alarm light board hardware failure causes failure to drive the alarm light. The key related connection line is disconnected or is not reliably Check and make sure of connected. Key failure reliable cable connection. The key control board hardware failure Replace the key control board.

  • Page 94: Repair And Disassembly

    9 Repair and Disassembly WARNING To help prevent fires, only use lubricants approved for ventilator or O2 equipment.  Do not use lubricants that contain oil or grease. They burn or explode in high O2  concentrations. Obey infection control and safety procedures. Used equipment may contain blood ...

  • Page 95: Disassemble The Service Parts

    CAUTION The internal parts may be contaminated during long-term use of the equipment.  Wear special gloves during disassembling and inspecting. 9.2 Disassemble the Service Parts 9.2.1 Replace the Inspiratory Valve Component Open the buckle cover, break the button down, then take out the inspiratory valve component.

  • Page 96: Replace The Fan Dust Filter

    Remove the air inlet dust Open the cover filter 9.2.5 Replace the Fan Dust Filter Open the fan inlet cover, then remove the fan dust filter. Open the cover Remove the fan dust filter 9.2.6 Replace the HEPA Filter Open the turbine inlet cover, remove the air inlet dust filter first, then pinch the HEPA filter button and remove it.

  • Page 97: Replace The Display Component

    Remove M3X8 combination screws Remove the 4 PCS M3X8 combination screws and 4PCS M4X12 inner hexagon screws from the front shell, remove 3PCS M3X8 combination screws from the back. Remove 4PCS Remove 3PCS M3X8 combination M3X8 combination screws screws Remove 4PCS M4X12 inner hexagon screws Leaning the display component on the kernel component, then take out the upper cover.

  • Page 98: Replace The Side Cover

    Remove 4PCS M4X12 inner hexagon screws 9.2.9 Replace the Side Cover Remove the upper cover and the display component as described in 9.2.7 and 9.2.8. Remove 5PCS M3X10 countersunk head screws and remove the bottom plate. Remove 5PCS M3X10 countersunk head screws Remove all screws as below pictures shown, then remove the left cover and the right cover.

  • Page 99: Replace The Lithium Battery

    Remove 4PCS M3X8 combination screws Remove 4 PCS M3X8 combination screws and remove the front cover. Remove 4PCS M3X8 combination screws 9.2.10 Replace the Lithium Battery For optional battery (battery 1): Just need to remove the bottom plate then could replace the battery.

  • Page 100: Replace The Main Board Pcba

    Remove 4 PCS M3X8 combination screws and take out the shield plate, then remove the heat transfer gasket above the core-board. Remove Remove heat 4PCS M3X8 transfer gasket combination screws Remove the core-board carefully (Gently pry the four corners with a small tool, do not touch any electronics on the main board).

  • Page 101: Replace The Front Baffle

    Remove all cables Remove 8PCS M3X8 combination screws from the main board, then remove the main board and take down the turbine line, remove the button battery at last. Remove 8PCS M3X8 Turbine line combination screws Remove button battery 9.2.13 Replace the Front Baffle Remove the upper cover, display component and side cover as described in 9.2.7, 9.2.8 and 9.2.9.

  • Page 102: Replace The Three-Way Valve

    9.2.14 Replace the Three-way Valve Remove the front baffle as described in 9.2.13. Remove 2PCS M3X8 combination screws and take out the three-way valve. Remove 2PCS M3X8 combination screws 9.2.15 Replace the Gas Capacitor Component Remove the front baffle as described in 9.2.13. Remove 2PCS M3X8 combination screws and take out the gas capacitor component.
  • Page 103 Remove all tubes Remove all cables on the main board(12pcs). Remove all cables Remove 4PCS M3X8 combination screws and 2PCS M3X6 countersunk head screws, then remove the support plate with mainboard together. Remove 2PCS Remove M3X6 4PCS M3X8 countersunk combination head screws screws Remove the turbine line.

  • Page 104: Replace The Inspiratory Valve Seat Component

    Remove 2PCS Remove 2PCS M3X6 countersunk M3X8 combination head screws screws Remove 3PCS tubes then remove the turbine component. Remove the tubes 9.2.18 Replace the Inspiratory Valve Seat Component Remove the upper cover, display component, side cover and turbine component as described in 9.2.7, 9.2.8, 9.2.9 and 9.2.17.

  • Page 105: Replace The Right Panel

    Remove 2PCS M3X6 countersunk head screws Remove the tubes 9.2.20 Replace the Right Panel Remove the upper cover, display component, side cover, turbine component, inspiratory valve seat component and O2 inlet component as described in 9.2.7, 9.2.8, 9.2.9, 9.2.17 ,9.2.18 and 9.2.19. Remove the 3PCS tubes first , then remove 6PCS M3X8 combination screws and take out the right panel component.

  • Page 106: Replace The Ac-Dc Power Module

    Remove 2PCS M3X6 countersunk head screws 9.2.23 Replace the AC-DC Power Module Remove the upper cover, display component, side cover and turbine component as described in 9.2.7, 9.2.8, 9.2.9 and 9.2.17. Remove 3 PCS M3X8 combination screws, the insulating cover, the cables and take out the AC-DC power module.
  • Page 107 Remove the...

  • Page 108: Performance Verification

    10 Performance Verification 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 7Calibration to do necessary calibrations. 10.1 System Inspection NOTE Make sure that the breathing system is correctly connected and not damaged.

  • Page 109: System Test

    Disconnect the O2 pipeline supply. As O2 pressure decreases, the high-level alarm [O2 Supply Failure] is triggered. 10.4 System Test Enter system check:  Enter system check screen after power-on. Connect O2 supply and block the flow sensor mounted on Y piece as prompted. Then select [Continue] to start system check item by item.

  • Page 110: High Pressure Test

    Set the ventilator controls as follows (in standard working state):  Ventilator mode: [VCV]  O2 concentration [O2%]: 40%  Tidal volume [VT]: 300 ml  inspiratory time [Tinsp]：2s，or inspiration and exhalation expiration ratio [I :E]：1 :2  Frequency [f]：10 bpm ...

  • Page 111: Patient Circuit Occluded Test

    10.7.7 Patient Circuit Occluded Test Make sure a test lung is connected to the ventilator and start ventilation in PCV mode normally. Nip the inspiration tube with the hands, make sure the monitoring value of VTi is lower than 10 ml. Verify that the Patient Circuit Occluded alarm is activated after several breathing cycles.

  • Page 112: Apnea Alarm Test

    10.7.12 Apnea Alarm Test After the ventilator system starts up normally, connect the ventilator to the test lungs to start ventilation. Set apnea alarm time to 15s. Set breathing frequency to 3bpm. Verify that the [Apnea] alarm is activated. Set breathing frequency to 10bpm. Verify that this alarm is automatically reset. 10.8 Function Tests 10.8.1 Setting to Standard Working Mode Turn on the power switch and make sure that the ventilator is in working mode.

  • Page 113: Electrical Safety Test

    Expiration Hold Select the [Functions] key → [Exp. Hold]. Press and hold the [Exp. Hold] key continuously. Make sure that the ventilator enters expiration hold phase. The ventilator automatically terminates the expiration hold function if the [Exp. Hold] key is pressed and held for continuous 30 seconds.

  • Page 114: Test Form

    a. Plug the probes of the safety analyzer into the protective earth terminal of AC power cord and into the O2 connector. b. Test the earth resistance with a current of 25 A. c. Verify the resistance is not larger than 0.1ohms (100 mohms). d.

  • Page 115: Parts

    11 Parts 11.1 Main Unit Assembly 11.1.1 Exploded View 11.1.2 Parts List Description 60201-000015-00 Display module 10003-000017-00 Display module mounting 10001-000040-00 Hinge cover 10001-000153-00 Front cover plate 10002-000007-00 Baseboard 10105-000002-00 Rubber 19*15*17 10001-000155-00 Right side plate 10001-000156-00 Rear cover plate 10001-000032-00 Baffle of air inlet 10006-000017-00...

  • Page 116: Display Assembly

    10001-000154-00 Left side plate 10001-000042-00 Oxygen battery cover 11.2 Display Assembly 11.2.1 Exploded View 11.2.2 Parts List Description 60201-000016-00 Display front housing assembly 10002-000020-00 Hinge Reinforcement Plate 10101-000001-00 Hinge 10001-000040-00 Hinge cover 10004-00006X-00 Hinge cover silicone plug 10004-000000-00 Screw silicone plug 10001-000039-00 Rear alarm lampshade 10001-000038-00...

  • Page 117: Display Front Housing Assembly

    11.3 Display Front Housing Assembly 11.3.1 Exploded View 11.3.2 Parts List Description 05102-000001-00 Touch screen / 18.5 inch 10001-000035-00 Front alarm lampshade 10006-000042-00 Screen upper and lower dust bar 10006-000043-00 Screen left and right dustproof strip 10001-000034-00 Front housing of display screen 10004-000061-00 Encoder silicone plug 30101-000005-00 Encoder PCBA 30101-000004-00 Indicator adapter PCBA...

  • Page 118: Kernel Assembly

    11.4 Kernel Assembly 11.4.1 Exploded View 11.4.2 Parts List Description 60201-000003-00 Oxygen source inlet assembly /Nist 10002-000001-00 Mainframe support 60201-000004-00 Host right panel assembly 05502-000001-00 Lithium battery RRC2054-2 10002-000008-00 DCDC power board-support board 60201-000014-00 Gas capacity assembly 10002-000014-00 Mainframe front baffle 10002-000014-00 Oxygen battery adapter 05801-000001-00 Fan 60*25...

  • Page 119: O2 Inlet Assembly（Nist

    60201-000010-00 Turbine box assembly 10002-000013-00 Turbine box assembly fixed board 10002-000016-00 Main control board PCBA mounting board 30101-000003-00 Main control board PCBA 11.5 O2 Inlet Assembly（NIST） 11.5.1 Exploded View 11.5.2 Parts List Description 10003-000019-00 O2 connector (NIST) 11002-000002-00 Seal, O ring 14X1.78 silicone black A50 11006-000001-00 Filter 11002-000001-00 Seal, O ring 10X1.5 silicone black A50 11001-000002-00 O2 proportional value with cable...

  • Page 120: O2 Inlet Assembly（Diss

    11.6 O2 Inlet Assembly（DISS） 11.6.1 Exploded View 11.6.2 Parts List Description 10003-000018-00 O2 connector (DISS) 11002-000002-00 Seal, O ring 14X1.78 silicone black A50 11006-000001-00 Filter 11002-000001-00 Seal, O ring 10X1.5 silicone black A50 11001-000002-00 O2 proportional value with cable 11001-000005-00 Nebulizer value with cable 11001-000004-00 Main body of regulator 11099-000001-00 Filter net 01402-000001-00 SENSOR Flow Oxygen 300slpm...

  • Page 121: Blower Box Assembly

    11.7 Blower Box Assembly 11.7.1 Exploded View 11.7.2 Parts List Description 60201-000012-00 HEPA filter 11002-000007-00 O-RING.8.2X1.78 Silicone, black, A50 30101-000001-00 Negative pressure sensor PCBA 11.8 Insp. Valve Seat Assembly 11.8.1 Exploded View 11.8.2 Parts List Description 01701-000001-00 Insp. hold valve 10004-000014-00 Diaphragm of Insp.

  • Page 122: Insp. Valve Assembly

    10004-000009-00 Seal diaphragm 10004-000013-00 Blower connecting tube 01402-000002-00 Insp. flow sensor(±250slpm) 10004-000012-00 Tube of flow sensor 01701-000003-00 Electromagnet of pressure release valve 01701-000002-00 Mode switching valve 11.9 Insp. Valve Assembly 11.9.1 Exploded View 11.9.2 Parts List Description 11002-000006-00 O-RING.19X2 Silicone, black, A50 11002-000007-00 O-RING.8.2X1.78 Silicone, black, A50 10004-000016-00...

  • Page 123: Exp. Valve Seat Assembly

    11.10 Exp. Valve Seat Assembly 11.10.1 Exploded View 11.10.2 Parts List Description 11001-000001-00 PEEP valve 11002-000005-00 O-RING.5X1.5 Silicone, black, A50 11.11 Exp. Valve Assembly for adult 11.11.1 Exploded View 11.11.2 Parts List Description 10004-000019-00 Membrane of Exp. valve 10001-000073-00 Main body of Exp. Valve for adult 10001-000074-00 Hand wheel of Exp.

  • Page 124: Exp. Valve Assembly For Infant

    11.12 Exp. Valve Assembly for infant 11.12.1 Exploded View 11.12.2 Parts List Description 10004-000019-00 Membrane of Exp. valve 10001-000144-00 Main body of Exp. Valve for infant 10001-000074-00 Hand wheel of Exp. valve 11.13 Rinse box Assembly 11.13.1 Exploded View 11.13.2 Parts List Description 11006-000003-00 Flow restrictor 10004-000022-00 Gasket...

  • Page 125: Trolley Assembly

    11.14 Trolley Assembly 11.14.1 Exploded View 11.14.2 Parts List Description 30301-000002-00 Trolley handle assembly 60201-000028-00 trolley gas cylinder fixed assembly 10007-000001-00 Trolley column 30301-000001-00 Trolley base assembly 10002-000043-00 Trolley humidifier fixed assembly...

  • Page 126: Trolley Handle Assembly

    11.15 Trolley Handle Assembly 11.15.1 Exploded View 11.15.2 Parts List Description 10001-000054-00 trolley front handle top cover 10001-000055-00 trolley front handle bottom cover 30301-000002-00 trolley support platform assembly 10001-000057-00 trolley rear handle bottom cover 10001-000056-00 trolley rear handle top cover...

  • Page 127: Trolley Base Assembly

    11.16 Trolley Base Assembly 11.16.1 Exploded View 11.16.2 Parts List Description 10001-000053-00 Trolley base cover 10103-000001-00 Caster.5 white, with brakes (FRU) 10103-000002-00 Caster.5 white, without brakes (FRU)

  • Page 128: Trolley Gas Cylinder Fixed Assembly

    11.17 Trolley Gas Cylinder Fixed Assembly 11.17.1 Exploded View 11.17.2 Parts List Description 10006-000022-00 trolley magic tape...

  • Page 129: A Preventive Maintenance Report

    A Preventive Maintenance Report Customer Name Service Company Service Date (YYYY/MM/DD) A.1 Check before Preventive Maintenance S/N of System Total Running Ventilator Time (hrs) Linux System System Software AB Module Software CB Module Software KB Module Software Software PB Module Software Version SB Module Software AB Module Boot...

  • Page 130: Test After Preventive Maintenance

    Pressure calibration Calibrate successfully. □Yes □No □Yes □No Calibrate successfully and O2 % calibration (21% ______ 100% record the AD value. ______) Resistance calibration (Single Calibrate successfully. □Yes □No limb) A.3 Test after Preventive Maintenance System Check (Dual Limb) Items Result Remarks Blower Test...
  • Page 131 Zero Point Accuracy Test (Chapter 6.2.3) Sensor Name Counts Actual Counts Range Result Insp. flow sensor -1~1LPM □Pass □Fail O2 flow sensor -1~1LPM □Pass □Fail Pat. flow sensor -1~1LPM □Pass □Fail Insp. press 0.2~0.2cmH2 □Pass □Fail sensor PEEP press 0.2~0.2cmH2 □Pass □Fail sensor Pat.
  • Page 132 Electrical Safety Test (Chapter 10.9) Items Measured Data Pass Criteria Result Protective Earth Resistance (Ω) <=0.1 □Pass □Fail Normal Status(uA) <=500 □Pass □Fail Earth Leakage Current Single Fault(uA) <=1000 □Pass □Fail Remarks Engineer Signature： Date：...

  • Page 133: B Replacement Parts List

    B Replacement Parts List Material Code Material Description Picture Inspiratory Valve 60201-000009-00 Component/RS Expiratory Valve 60201-000007-00 Component/RS 50199-000001-00 O2 Sensor 10006-000016-00 Air Inlet Dust Filter 10006-000017-00 Fan Dust Filter HEPA Filter 60201-000109-00 Component 10001-000157-00 Upper Cover...
  • Page 134 60201-000015-00 Display Component/RS 10001-000153-00 Front Panel 10001-000031-00 Back Panel 10001-000154-00 Left Panel 10001-000155-00 Right Side Cover 10001-000032-00 Air Inlet Cover 10001-000033-00 Fan Cover 10001-000042-00 O2 Sensor Cover...
  • Page 135 05502-000001-00 Lithium Battery 05001-000003-00 Core-Board PCBA 30101-000003-00 Main Board PCBA/RS 60201-000088-00 Three-way Valve Gas Capacitor 60201-000014-00 Component 30101-000002-00 Power Board/RS Turbine 60201-000010-00 Component/RS Inspiratory Valve Seat 60201-000008-00 Component/RS...
  • Page 136 60201-000003-00 O2 Inlet Component 10001-000023-00 Right Panel Expiratory Valve Seat 60201-000005-00 Component/RS 09901-000015-00 Speaker 05204-000001-00 AC-DC Power Module 60201-000110-00 Fan Component 60201-000111-00 Switch Component...

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