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Table of Contents Table of Contents Introduction Guidelines for this technical manual 1.1.1 - Instructions for use 1.1.2 - Software and Hardware version 1.1.3 - Standard service procedures Symbols Abbreviations AquaVENT FD140i Overview ® General description AquaVENT FD140i features ® 2.2.1 - Safety features 2.2.2...
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Introduction 1.1 Guidelines for this technical manual This manual covers service information for the AquaVENT FD140i Gas Flow Driver ® Warning All service, repair and maintenance procedures as well as the setting of configuration and options may only be performed by an authorised service technician or a suitably qualified hospital engineer.
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Introduction 1.1.3 Standard service procedures Normal operational tests, calibrations and troubleshooting can be performed on the AquaVENT FD140i without opening the system’s housing. Only repair and ® replacement procedures require opening the system’s housing. Warning After the AquaVENT FD140i has been serviced, the ‘Post-service Checkout’ ®...
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Introduction 1.3 Abbreviations The following is a list of abbreviations used in this manual and device. Medical air Medical oxygen CPAP Continuous Positive Airway Pressure Positive Airway Pressure PEEP Positive End Expiratory Pressure FiO 2 Fraction of inspired oxygen Hardware version Software version Ser.- No.
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AquaVENT FD140i Overview ® 2.1 General description The AquaVENT FD140i is a gas fl ow driver that delivers an adjustable blend of medical ® air and oxygen to the patient via an attached breathing circuit. The device has six preset respiratory therapies: •...
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AquaVENT FD140i Overview ® 2.2.2 Device layout Pressure measurement port Respiratory gas outlet Nebuliser port Touchscreen Alarm mute button Mains power connection indicator Battery status indicator Power ON/OFF button AquaVENT FD140i Technical Manual (v1.0) ®...
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AquaVENT FD140i Overview ® 2.2.2 Device layout (cont’d) Refer to instruction manual Mains power inlet USB port AquaVENT FD140i Technical Manual (v1.0) ®...
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AquaVENT FD140i Overview ® 2.2.2 Device layout (cont’d) Handle Fan outlet Fixation claw Serial plate Medical oxygen inlet (NIST) Medical air inlet (NIST) AquaVENT FD140i Technical Manual (v1.0) ®...
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AquaVENT FD140i Overview ® 2.2.2 Device layout (cont’d) Over-pressure relief valve (do not obstruct) Mechanical under-pressure (free-breathing valve) (do not obstruct) AquaVENT FD140i Technical Manual (v1.0) ®...
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AquaVENT FD140i Overview ® 2.2.3 Device interface and icons Front panel icons and indicator lights: Power source indicators AC mains power supply is connected when indicator light is illuminated Running on internal battery when indicator light is illuminated solid green Internal battery is charged when indicator light is flashing green Internal battery level is ≤...
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AquaVENT FD140i Overview ® Power supply and battery charge indication Device unplugged from mains power Internal battery level - % charged (alternates between battery and unplugged icon) ...% Battery level at or below 20% remaining capacity Battery charging Charging General settings General settings menu Screen brightness Return to previous menu...
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AquaVENT FD140i Overview ® 2.3 Pneumatic components This section will describe the components contained within the pneumatic assembly of the AquaVENT FD140i. ® All components are located on the pneumatic assembly, excluding the following components, which are components included in a breathing circuit: •...
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AquaVENT FD140i Overview ® Proportional valve - AIR Proportional valve - O 2 Flow sensor - AIR Flow sensor - O 2 Flow mesh - AIR Flow mesh - O 2 Volume chamber Nebuliser valve Stenosis restrictor OS1/OS2 O 2 Concentration Sensor Free-breathing valve Over-pressure valve Patient Pressure sensor...
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AquaVENT FD140i Overview ® O 2 flow PV2 is a proportional valve used to control the flow of O 2 in the system. The flow control mesh – O 2 (M2) is used to create a differential pressure from the flow and the O 2 flow sensor (S2) is used to measure this differential pressure.
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AquaVENT FD140i Overview ® 2.4 Electrical components HW 1.01 - The following overview diagram illustrates all electrical components contained within the AquaVENT FD140i. ® The electrical components can be split into three groups based on their placement within the device: •...
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AquaVENT FD140i Overview ® 2.4.1 Main board Microcontroller The microcontroller (MC1) deals with all inputs through the LCD touchscreen (LCD1), data provided by all sensors and controlling all pneumatic functions. It controls what information is displayed on the LCD touchscreen. It can send alerts in the form of an alarm through a speaker, touchscreen and LEDs.
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AquaVENT FD140i Overview ® Paramagnetic The AquaVENT FD140i can be fitted with a paramagnetic O 2 sensor. ® O 2 sensor This continuously monitors the FiO 2. If this value is measured outside of specifications it will generate an alarm. Patient Pressure sensor (S3) transmits information to the microcontroller in Patient Pressure sensor...
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Calibration and Testing 3.0 Calibration and Testing AquaVENT FD140i Technical Manual (v1.0) ®...
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Calibration and Testing 3.1 Calibration and Testing The AquaVENT FD140i software includes a self-test called ‘Self-Check’ that ® determines if the operating software, electronic circuits and pneumatic circuits are functioning properly. 3.1.1 Self-Check The Self-Check is started automatically when the device is turned on and takes approximately 10 seconds to complete.
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Calibration and Testing If a malfunction is identified during Self-Check, the corresponding message appears on screen. Depending on the priority of the alarm, the message displayed will read either ‘Note’ , ‘Fault’ or ‘Critical Fault’ , as seen below. If ‘Note’ is displayed, it means that the device will still pass the Self-Check and will allow the user to start therapy.
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Calibration and Testing If the user chooses ‘Yes’ , the paramagnetic oxygen sensor will go through an automatic calibration process, which lasts 75 seconds and then will go to the mode selection sreen. If the user chooses ‘No’ , the mode selection screen will appear. When the mode selection screen is displayed, there is a choice between six diff erent therapy modes:...
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Calibration and Testing 3.2 Service mode The service mode is used to test or troubleshoot the major components of the AquaVENT FD140i. For safety reasons, the service mode is not accessible ® during standby or in therapy mode. To enter the service mode, press/hold the following keys: •...
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Calibration and Testing 3.2.1 Service mode pages The system will access the service mode. There are 2 pages in the service mode. Service mode - Page 1, Engineering I/O - turn device off UI - return to User Interface (Self-Check will run) Current Time and Date Current Battery status Patient Pressure graph...
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Calibration and Testing Service mode - Page 2, Calibration UI - return to Engineering service mode page Flow O 2 - buttons to capture analog to digital conversion at each set O 2 flow point Flow AIR - buttons to capture analog to digital conversion at each set AIR flow point O 2 Conc.
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Calibration and Testing 3.3 Calibrations General Always allow the AquaVENT FD140i to warm up for at least 15 minutes ® instructions prior to any calibration procedure. The optimal room temperature to conduct calibration is approximately 23ºC. The following components of the AquaVENT FD140i may be calibrated during service: ®...
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Calibration and Testing Test equipment specifications: External flow measurement device: • Pressure range: 0 - 160 L/min • Accuracy: ± 0.05 L/min or 2% of reading • Calibrated for: AIR and O 2 External pressure measurement device: • Pressure range: 0 - 100 hPa •...
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Calibration and Testing This calibration can also be carried out manually. Follow instructions from 3.2 Service Mode to enter the Calibration Page, then: 1. Allow AIR to flow through the system for approximately 30 seconds by using the slider bar/buttons to open the valve for AIR. The O 2 bar must remain set to 0.
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Calibration and Testing 3.3.3 O flow calibration 1. Connect the inspiratory port and external flow measurement device using a 22mm tube. 2. Ensure the external flow measurement device has been positioned so that gas will flow through in the correct direction (arrows should indicate the direction of flow on an external flow measurement device).
Calibration and Testing 3.3.5 Nebuliser set-up The nebuliser value can only be set if the AquaVENT FD140i is connected through ® USB interface to a terminal program. The fl ow of the nebuliser does not have a default value. The fl ow rate of the nebuliser depends upon the restrictor employed in the manifold.
Calibration and Testing 3.4 Mechanical free-breathing valve test In the instance of a total gas supply failure, the AquaVENT FD140i can enable a ® spontaneously breathing patient to breathe ambient air. If a total gas supply failure occurs, the free-breathing valve (mechanical under-pressure valve) allows the inspiration of room air.
Troubleshooting 4.1 Troubleshooting instructions Warning A post-service checkout must be performed after any maintenance, service or repair has been carried out on the device. If not, patient injury could occur. For instructions on how to do so, refer to ‘3.5 Post-service checkout’. The AquaVENT FD140i software includes a self-test called ‘Self check’...
Troubleshooting 4.2 Alarms The AquaVENT FD140i has a system in place ® that will alert the operator to issues, which have been divided into two priority groups: Low Priority Alarm High Priority Alarm (YELLOW) (RED) 4.2.1 Patient alarms Patient alarms are those which have been triggered by the patient's input to the system and will only occur during therapy.
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Troubleshooting Alarm Message Alarm Condition Action Inconsistent readings between Check the O 2 flow sensor cables. AIR pressure switch and O 2 flow If cables are as they should sensor. If O 2 supply is measured be, recalibrate the device. If Sensor O 2 defect when there should be no O 2 recalibration does not clear the...
Troubleshooting 4.3 Messages 4.3.1 Messages during system test Alarm Message Alarm Condition Action Recalibrate device. If Oxygen 0 - 10 l/min recalibration does not clear Calibration O 2 Flow A calibration cannot be the alarm, return the device retrieved to the manufacturer Recalibrate device.
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Troubleshooting Alarm Message Alarm Condition Action Recalibrate device. If AIR 120 - 140 l/min calibration recalibration does not clear Calibration AIR Flow E cannot be retrieved the alarm, return the device to the manufacturer Recalibrate device. If Oxygen concentration recalibration does not clear Calibration O 2 Sensor sensor calibration cannot be the alarm, return the device...
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Troubleshooting 4.3.2 Messages during O sensor calibration Alarm Message Alarm Condition Action Ensure both AIR and O 2 are supplied to Calibrate failure No O 2 or AIR supply device AquaVENT FD140i Technical Manual (v1.0) ®...
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Recommended Conducted by Instructions service interval Replacement/Service of AEC0355 Every 6 months Armstrong Medical Oxygen sensor if it is used Check for depletion and requirement of Every year Armstrong Medical oxygen fuel cell, if present Replace Cone Filters in the NIST fittings...
Maintenance and Service Recommended Conducted by Instructions service interval Every 3 years Armstrong Medical Replace Real Time Clock battery Every 6 years Armstrong Medical Replace O 2 pressure regulator Every 6 years Armstrong Medical Replace AIR pressure regulator Replace x2 proportional (flow sensor)
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Maintenance and Service Order Number Description FD140i service kit, 6-years • Gas outlet connector tool AMFD140iSK6Y • Precision Regulator 0-4bar High Flow (x2) • Proportional valve 2/2 3mm orifice 24vDC FL (x2) • Technical manual EN FD140i service kit, 10-years •...
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Repair Procedures 6.1 General instructions Warning Post-service checkout is required after you complete this chapter. You always have to carry out a post-service checkout after performing any maintenance, service or repair. Failure to do so may result in patient injury. For details, refer to 3.5 Post-service checkout.
Repair Procedures 6.3 Opening the device 6.3.1 Opening the housing To open the housing of the AquaVENT FD140i, follow this procedure: ® 1. Switch off the system 2. Disconnect the AC line supply (power supply) 3. Disconnect the gas supply 4.
Repair Procedures 6.3.2 Removing the pneumatic assembly To remove the pneumatic assembly of the AquaVENT FD140i, follow this procedure: ® 1. Open the housing as described in 6.3.1 2. Remove the nebuliser port and patient pressure port from front of housing, and remove the gas outlet from underside of housing.
Repair Procedures 6.3.3 Device assemblies The following are located in the housing of the AquaVENT FD140i: ® 1. Display PCB 2. Battery 3. Exhaust fan and speaker 4. Power entry connector 5. Power supply unit 6. USB interface (USB port) AquaVENT FD140i Technical Manual (v1.0) ®...
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Repair Procedures The following components are located on the pneumatic assembly: 1. Pneumatic assembly circuit board 2. Paramagnetic O 2 sensor 3. Tube, nebuliser, pressure measurement connectors 4. Pressure switch (AIR) 5. Pressure regulator (AIR) 6. Proportional valve (AIR) 7. Proportional valve (O 2 ) 8.
To update the fi rmware, a bootloader application needs to be installed onto a Windows computer. Please contact Armstrong Medical for access to the bootloader application download fi le. Perform the following step to communicate to the AquaVENT FD140i via USB: ®...
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Repair Procedures Putting new fi rmware on the microprocessor of the AquaVENT FD140i : ® 1. Press the 'Fwm Cpy -> Old' button to copy the code on the microprocessor to the 'Last Code' location. This process wil take approximately 20-30 seconds. 2.
Repair Procedures 6.5 Replacing main unit components Note To replace any main unit components, the housing must fi rst be opened. For instructions, refer to 6.3.1 Opening the housing. 6.5.1 Replacing battery 1. Follow instructions in 6.3.2 Removing the pneumatic assembly 2.
Repair Procedures 6.5.2 Replacing LCD screen Note In order to replace the LCD screen, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) • Fan & Speaker assembly (refer to 6.5.5) • Power entry connector (refer to 6.5.6) •...
Repair Procedures 6.5.3 Replacing display PCB Note In order to replace the display PCB, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) • Fan & Speaker assembly (refer to 6.5.5) • Power entry connector (refer to 6.5.6) •...
Repair Procedures 6.5.4 Replacing coin cell battery Note In order to replace the display PCB, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) • Fan & Speaker assembly (refer to 6.5.5) • Power entry connector (refer to 6.5.6) •...
Repair Procedures 6.5.5 Replacing alarm loudspeaker Note In order to replace the alarm loudspeaker, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) • Fan & Speaker assembly (refer to 6.5.5) 1. Remove the 6 screws from housing and place the replacement speaker into the speaker bracket, ensuring the speaker is oriented so that the cable sits in the cut-out of the bracket.
Repair Procedures 6.5.6 Replacing fan assembly Note In order to replace the fan assembly, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Unplug the fan cable from connector J10 on display PCB. 2. Remove the 4 screws connecting the fan to the fan bracket using a Phillips screwdriver.
Repair Procedures 6.5.7 Replacing power entry connector 1. Disconnect the live, neutral and protective earthing cables from the pins on the back of the power entry connector. 2. Using a Phillips screwdriver, remove the 2 screws holding the power entry connector in place and remove the power entry connector.
Repair Procedures 6.5.8 Replacing power supply unit Note In order to replace the power supply unit, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Disconnect the live/neutral cable and the power supply unit to Display PCB cable from power supply unit.
Repair Procedures 6.5.9 Replacing USB assembly 1. Disconnect the protective earth cable and 6-way Display PCB to USB PCB cable. 2. Using a picking tool, remove the USB port dust cover. 3. Using a Phillips screwdriver, remove the 2 screws holding the USB PCB in place. 4.
Repair Procedures 6.6 Replacing pneumatic assembly components Caution After replacing any of the components contained within the pneumatic assembly, a full calibration must be performed on the device. Refer to Chapter 3 for instructions on calibration. 6.6.1 Replacing tube, nebuliser & patient pressure measurement connector The following steps are to replace the tube connector: 1.
Repair Procedures 6.6.3 Replacing patient pressure sensor Note In order to replace the patient pressure sensor, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Disconnect patient pressure sensor cable from pneumatics PCB. 2. Remove the 2 screws to remove the sensor and block from the manifold. 3.
Repair Procedures 6.6.4 Replacing fl ow sensor Note In order to replace the fl ow sensor, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Disconnect the appropriate sensor cable from pneumatics PCB, depending on which fl ow sensor requires replacement.
Repair Procedures 6.6.5 Replacing proportional valves Note In order to replace either proportional valve, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) The following steps are to replace the AIR proportional valve (circled in red): 1.
Repair Procedures 6.6.6 Replacing pressure switches Note In order to replace the pressure switches, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Remove the cable connecting the pressure switch to the pneumatics assembly circuit board from the PCB.
Repair Procedures 6.6.7 Replacing pressure regulators Note In order to replace the pressure regulators, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Using a 2mm Allen key, remove the two M3 screws of the regulator requiring replacement.
Repair Procedures 6.6.8 Replacing nebuliser valve Note In order to replace the nebuliser valve, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Disconnect the cable from the nebuliser valve and remove the 2 screws holding it in place.
Repair Procedures 6.6.9 Replacing gas inlet connectors Note There are two gas inlet connectors on the AquaVENT FD140i, one for AIR and ® one for O2. To change these connectors the device housing does not need to be opened. 1. Use a 22mm wrench to disconnect the connectors from the manifold.
Repair Procedures 6.6.10 Replacing o-rings at gas inlet connectors 1. Remove the gas inlet connectors by following the instructions outline in Chapter 6.6.9. 2. Remove and replace the o-rings, ensuring they are positioned correctly as illustrated. AquaVENT FD140i Technical Manual (v1.0) ®...
Repair Procedures 6.6.11 Replacing gas inlet filters 1. Remove the gas inlet connectors by following the instructions outlined in Chapter 6.5.9. 2. Remove the nylon cone filter from the inlet connector. 3. Place the new nylon cone filter into the connector as illustrated. 4.
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Repair Procedures 6.6.12 Replacing paramagnetic sensor Note In order to replace the paramagnetic O 2 sensor, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Disconnect the cable which connects the paramagnetic oxygen sensor to the pneumatics assembly PCB from the sensor.
Repair Procedures 6.6.13 Replacing over pressure valve Note In order to replace the over pressure valve, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Remove the over pressure valve from the manifold using a 22mm socket, circled in red.
Repair Procedures 6.6.14 Replacing mechanical free-breathing valve Note In order to replace the mechanical free-breathing valve, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Using a 2mm Allen key, remove the two screws at either side of the free breathing valve.
Repair Procedures 6.6.15 Replacing fuel cell Note In order to replace the fuel cell, the following must have already been successfully removed: • Pneumatic assembly (refer to 6.3.2) 1. Disconnect the cable which connects the fuel cell sensor to the pneumatics assembly PCB.
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Illustrated Parts 7.2 Main unit spare parts Description Order Number FD140i Front casing set AMCOEM1000-001 (including membrane) (AMCOEM100-003) FD140i Rear casing set AMCOEM1000-002 FD140i Fan set AMCOEM1000-019 FD140i Speaker set AMCOEM1000-020 FD140i Rechargeable battery set AMCOEM1000-021 FD140i Display PCB(A) set for LCD screen AMCOEM1000-010 (including LCD screen) (AMCOEM1000-185)
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Illustrated Parts 7.3 Pneumatic assembly spare parts Note Most pneumatic spare part items described below consist of multiple order numbers; they are pre-assembled, but consist of multiple components. All order numbers must be included in each spare part order. Description Order Number Pressure regulator AMCOEM1000-111...
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Illustrated Parts Description Order Number AMCOEM1000-137 AIR inlet connector AMCOEM1000-132 AMCOEM1000-138 O2 inlet connect AMCOEM1000-132 Nylon cone fi lter for inlet connectors AMCOEM1000-133 AMCOEM1000-110 Free-breathing valve AMCOEM1000-158 AquaVENT FD140i Technical Manual (v1.0) ®...
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