Home

Cardinal-Health-VELA-Ventilator-Service-Manual

1. 61 Chapter 11 Specifications ie Ana an aaa wala 63 OX VOC SUD DIY etc 63 Electrical SUDDIV eh cA a 63 Data Input 64 Atmospheric amp Environmental Specifications 66 Physical Dimensions cd one et txt ie wc a EE dde 66 Appendix A Contact and Ordering Information 67 Appendix B Reordering Instructions 69 Appendix C Schematics amp Diagrams 71 Indes ep 93 L2859 101 Rev B VELA Ventilator Systems Service Manual vii Notices EMC Notice This equipment generates uses and can radiate radio frequency energy If not installed and used in accordance with the instructions in this manual electromagnetic interference may result The equipment has been tested and found to comply with the limits set forth in EN60601 1 2 for Medical Products These limits provide reasonable protection against electromagnetic interference when operated in the intended use environments described in this manual The ventilator has been tested to conform to the following specifications MIL STD 461D 1993 MIL STD 462D 1993 EN55011 1991 IEC 1000 4 2 1994 IEC 1000 4 3 1994 IEC 1000 4 4 1994 IEC 1000 4 5 1994
2. f il SRERSSLERKSRRVNBSSEGSoaan e c 9 001uF 0 00101 0 002 0 001uT G Qoluf 0 0044 O 00luI 0 002407 C21 C c cs Cil Cis 0 00 0 0 00107 0 061ur 0 00107 O COluf 0 0010 0 0910 0 0010 0 0010F v3 251 640 MVNORH 4 10 06 4 20 06 me S BODDEN 3095 SCHEMATIC D comser EXTERNAL PERIPHERAL INTERFAC E OEBURR EDGES 005 020 Mud _ _ 18 9 02 oir es SER E o NEL L2859 101 Rev B VELA Ventilator Systems L2859 101 Rev B wo o 0 10 CAPACITORS ARE 10 50V SM SIZE 0805 RESISTORS ARE 1 SM SIZE 0805 ALL COMPONENTS ARE SURFACE MOUNT REF ASSY NO 52070 amp TEST REQ 52075 di 9 95 2 99 j d 21 4 925 Service Manual RV100 47onm 120 5 VIASYS HCARE TRITICAL CARE DIVISION SCHEMATIC VELA POWER SUPPLY TOT a 5 77 8 87 VELA Ventilator Systems L2859 101 Rev B Service Manual 88 VELA Ventilator Systems L2859 101 Rev B Service Manual 89 VELA Ventilator Systems L2859 101 Rev B Service Manual 90 VELA Ventilator Systems Service Manual 91 I20uF 65 ELECT MESR 2 40 105 100x20H 5S L0 6 a 94027 CONNePIN 2 POS MTA IOO STRAIGHT MTA I0042 I ESR 2 40C 05C 100x20H 5S L
3. Reset Battery Charge Circuit See Chapter 7 Step 2 4 L2859 101 Rev B 53 54 Service Manual This page was intentionally left blank VELA Ventilator Systems L2859 101 Rev B VELA Ventilator Systems Service Manual 55 Chapter 9 Frequently Asked Questions Q How do l check the battery charging circuit A Access the SVT mode Access Transducer Data Choose Analog X any one showing will do Rotate the control knob until IB Internal Battery is selected press accept Exit screens and return to the wave form screen In the area just above one of the wave forms that shows what the wave form represents you can touch this and a menu window will appear rotate the control knob until the Analog X that you set IB in is selected then press accept The wave form will now represent a battery capacity You can see this voltage by pressing the freeze button and the voltage value will appear next to the curser line with a green status light this voltage should read above 809 of full charge The charge scale is 1 0 to 4 0 1 0 being 0 charge and 4 0 being Fully charged The formula to find the percent of charge for the VELA internal batteries is 8 1 0 3x 100 of charge Example 3 4 1 0 2 4 3 0 8 x 100 80 of full charge capacity Another way to see if the battery charge is working would be to connect to the internal battery Molex connecter on the red and black leads using the voltage meters probes enter t
4. 1 Recommended Tools 1 Recommended Maintenance 2 Chapter 2 Theory of ODGFallOl iio ren eser bec vaccae neo end 3 General Device DescorIpliOlis oc odii a e a PLU OR EE CDU 3 Pneumatic System Overview x ner Gries ee roe eas 3 Oxygen Blending System 4 Electronic Overview 4 Chapter 3 Disassembly and 9 General Instructions and 5 9 Required ka eL t E 9 Disassembly and Reassembly 65 10 Right Panel Containing the Power PCB P N 16351 12 Front Panel P N 16345A S N AHT07499 amp Below 13 Main PCB P N 52300A S N AHT07499 amp Below 15 Main PCB P N 52850A S N AHT07500 amp Above 15 Flow Sensor Receptacle assembly P N 16106 16 Exhalation Valve Assembly P N 16417 16 Blender Assembly P N 16358A a 17
5. 0 00118 TP500 ST78C34CJ44 C513 0 22uF 0509 NC1S2125 Service Manual C525 0 01uF 0 0012F 9 0 001vF 70543 0004 77 VELA Ventilator Systems L2859 101 Rev B 74LCX125M 72605 Tp607 es 01 USUS EET S ancs Lu A See LO TCHAREEC SS O 614 TP615 R621 UU TTE A a Service Manual aS FC Ii 78 VELA Ventilator Systems R710 R741 not installed L2859 101 Rev B 1005 0 0019F ADS7846E 4 WIRE 10uF 16v Service Manual R705 R706 79 VELA Ventilator Systems Turbine Differential Pressure 45cm to 175cm Exhalation Pressure 70cm to 130cm External Flow Differential Pressure 1 58cm to 6 35cm L2859 101 Rev B 661 Gain 299 Service Manual Barometric Pressure 14 7psi 1012 8mbar 0ft 10 10psi 695 9mbar 10000ft 36 25uvlmbar 70343 0003 02 Sensor C828 0 01uF 805 2 94K Gain 73 C922 T iuf 10v 80 VELA Ventilator Systems L2859 101 Rev B TPIC682730N p907 02 SOLENOID 70543 0002 424 SOLENOID 70543 0001 a 000000000000 5 IRFIZLAS 314 H INSP HOLD VALVE MBRS240LT T 26 0001 24V0C AUTO ZERO XFLO DIFF 5900 5901 9905 nat installed 912 000001 004 PURGE XFLO DIFF 912 000001 004 AUTO ZERO TURB DIFF AUTO ZERO EXHL PRES 912 00000
6. Lo me MODULAR JACK N 6 POSITION A i 6 CONTACT Sd CENTER LATCH TOP ENTRY 520258 3 L MOLEX 95022 2687 70246 V4 V3 v2 VARISTOR VARISTOR VARISTOR 82 NOM I B20V NOM 820V NOM B 510V RMS 510V RMS SIOV RMS La EZ 680V DC 680v DC 680V DC MTG HOLE V OD82 I 100821 V IODB2 I 68164 68164 68164 GROUND TO PANEL 7 GROUND PLANE NOTES uNLESS OTHERWISE SPECIFIED REVISION STATUS CHANGES TO THIS DRAWING MUST REFLECTED DRAWING 50570 2 CONTACTS 3 4 NORMALLY OPEN CLOSE ON ALARM INOP OR SHUTDOWN A JI CONTACTS 2 5 NORMALLY CLOSED OPEN ON ALARM INOP OR SHUTDOWN EE S CETTE V n iame TENAN a SCHEMATI e an PATIENT ASSIST CALL VELA Ventilator Systems Service Manual THIS DOCUMENT AND ITS CONTENTS THIS DOCUMENT ARE CONFIDENTIAL AND ARE NOT TO BE um EGNG oenen 7 DISSEMINATED TO THIRD PARTIES THIS DOCUMENT IS THE EXCLUSIVE COPYRIGHTED PROPERTY OF VIASYS HEALTHCARE S RESPIRATORY CARE BUSINESS UNIT AND MAY NOT BE REPRODUCED YER ROEM OR DISTRIBUTED IN WHOLE OR IN PART WITHOUT ITS PRIOR WRITTEN PERMISSION OR USED s cares puorreiesserereco OT FOR PURPOSES OTHER THAN AS EXPRESSLY AUTHORIZED emm prcoucronamense O o w RII 7 d E 5 MII ERRORE 7 ra sma i
7. Set Ventilator parameters as follows Mode Volume Assist Control Volume 500 ml Peak Flow 20 Ipm Breath Rate 12 bpm PEEP 0 cmH20 L2859 101 Rev B VELA Ventilator Systems Service Manual 45 8 Adjust all other controls and alarm limits out of range of operation to either OFF or min max settings for alarms Turn off ventilator 2 1 Delivered Volume Test 1 Power ventilator on 2 Press the MAIN icon on the top center screen select the Extended Functions button select the Vent Setup button 3 Selectthe Altitude button far right of window and set current locations proper altitude before continuing Note There are many different and varied types of Pressure Volume measurement devices used in calibration and functional testing It is not the intention of Cardinal Health to suggest the use of any one particular device over another Whatever device is used should have the capabilities to measure pressures and volumes accurately 4 With the ventilator in normal operating mode with parameters set as listed above 5 Measure the delivered volume from ventilator with Peak Flow of 20 Ipm Results must be within 10 of volume setting i e 500 ml 50 ml 6 Measure the delivered volume from ventilator with Peak Flow of 60 Ipm Results must be the same as mentioned above 7 Measure the delivered volume from ventilator with Peak Flow of 80 Ipm Results must be the same as mentioned above Note If t
8. T Insert the diaphragm Hold it by the center and set it into the exhalation valve housing receptacle Gently tap around the perimeter until the diaphragm is firmly seated 8 Line up the tabs of the exhalation valve body with the alignment slots on the exhalation valve housing Gently push the exhalation valve body into place and rotate it clockwise until the release latch pops out The exhalation valve body clicks into place 9 Gently pull on the exhalation valve body to make sure it is securely attached to the ventilator L2859 101 Rev B VELA Ventilator Systems Service Manual 61 Other Accessories For all other accessories purchased for use with your VELA Ventilator but not supplied by Cardinal Health follow the manufacturer s recommendations for cleaning or sterilization Recommended Periodic Maintenance Cardinal Health is committed to product support If you have any questions concerning your ventilator s operation or maintenance contact your product support representative as shown in Appendix A Contact Information Every 500 hours the air intake filter should be checked and cleaned if necessary A reminder message is displayed on the front panel at 500 hour increments To clear this message press the Accept Key To clean the filter remove it from its recess and immerse in warm soapy water Rinse thoroughly and dry thoroughly before replacing in the ventilator Preventive maintenance should be performed on your VELA
9. e m r Graphical Symbol in general use internationally for DO This symbol indicates CANCEL Do not accept entered values The ventilator continues to operate at previous settings Symbol 5467 IEC 60417 Pressing the button with this symbol will FREEZE the current display m Symbol 45569 IEC 60417 This symbol indicates a CONTROL LOCK L2859 101 Rev B xi xii Service Manual VELA Ventilator Systems Source Compliance Meaning Cardinal Health symbol This symbol represents a NEBULIZER Symbol 45319 IEC 60417 This symbol indicates ALARM SILENCE Symbol 45307 IEC 60417 This symbol indicates ALARM RESET E As YES Cardinal Health symbol Cardinal Health symbol Increase OXYGEN oo i J V Cardinal Health symbol Indicates VARIABLE ORIFICE FLOW SENSOR Symbol 5031 IEC 60417 i D This symbol indicates DIRECT CURRENT DC CM Symbol 5546 IEC 60417 This symbol indicates the INTERNAL BATTERY STATUS display L Cardinal Health symbol This symbol indicates INSPIRATORY HOLD Sue This symbol indicates EXPIRATORY HOLD h Cardinal Health symbol This symbol indicates MANUAL BREATH L2859 101 Rev B VELA Ventilator Systems Service Manual 1 Chapter 1 Introduction General Instructions When disassembling or assembling the VELA refer to the pneumatic schematic tubing diagram and the wiring dia
10. Printer The ventilator is constructed with a standard 25 pin female Centronics parallel printer port Remote Nurse Call The ventilator has a modular jack configured to interface with external systems that are either wired for normally open close on alarm or normally closed N C open on alarm signals Video Output The ventilator is constructed with a video output connector L2859 101 Rev B 66 Service Manual Atmospheric amp Environmental Specifications Temperature and Humidity Storage Temperature 20 to 60 4 to 1405 F Humidity 10 to 95 RH non condensing Operating Temperature 5 to 40 C 41 to 104 F Humidity 15 to 95 RH non condensing Barometric Pressure 760 to 545 mmHg Physical Dimensions Overall Size 13 Wx 145 Dx 12 H Weight lt 38 lbs VELA Ventilator Systems L2859 101 Rev B VELA Ventilator Systems Service Manual 67 Appendix A Contact and Ordering Information How to Call for Service To get help with any of the preventive maintenance routines or to request service for your ventilator contact Cardinal Health Respiratory Technologies at the following numbers Technical and Clinical Support Hours 6 30 AM to 4 30 PM Pacific Time Monday through Friday Phone 800 231 2466 From within the U S only or 714 283 2228 Fax 714 283 8471 After hours service Phone 800 231 2466 From within the U S only Fax 714 283 8473 or 714 283 8419 To
11. condition The following cautions apply any time you work with the ventilator When replacing fuses ensure that new fuses are of the same type and value as those being replaced Incorrect fuses can cause damage to the ventilator A battery that is fully drained i e void of any charge may cause damage to the ventilator and should be replaced All accessory equipment that is connected to the ventilator must comply with CSA IEC601 UL2601 To avoid damage to the equipment clean the air filter regularly The following cautions apply when cleaning the ventilator or when sterilizing ventilator accessories Do not sterilize the ventilator The internal components are not compatible with sterilization techniques Do not gas sterilize or steam autoclave tubing adapters or connectors in place The tubing will over time take the shape of the adapter causing poor connection and possible leaks DO NOT submerge the ventilator or pour cleaning liquids over or into the ventilator L2859 101 Rev B VELA Ventilator Systems Service Manual Equipment Symbols The following symbols may be referenced on the ventilator or in accompanying documentation Symbol Source Compliance Meaning Symbol 03 02 IEC 60878 Indicates ATTENTION consult ACCOMPANYING DOCUMENTS Symbol 45016 IEC 60417 This symbol indicates a FUSE Symbol 45034 IEC 60417 Symbol 01 36 IEC 60878 This symbol indicates INPUT Symbol 45035 IEC
12. steps below The vent should be connected to a properly grounded AC source for at least 24 30 hours after battery charge controller reset Install a patient circuit and test lung on the VELA Turn on power to the unit Set the VELA to the settings shown above Record the start time of the test Unplug the vent from the AC source so the vent is now operating on battery Verify the On Battery Power message is displayed on the alarm banner top right Run the vent for one hour If the vent does not run for an entire hour then turn the power switch off the test is complete The batteries should be replaced Note Cardinal Health recommends that customers perform a Battery Performance Verification Test annually and change the batteries on the VELA at least every two years Batteries should be changed sooner if deemed necessary in the performance verification testing 11 12 If the ventilator operated for the one hour period without interruption or alarms the batteries can be considered operational and ready for use Turn off the VELA power switch and unplug from the AC source Note If this test does not pass do not continue with performance test Turn to Chapter 9 Troubleshooting section under Battery Performance Test and follow the troubleshooting guide for the failed test L2859 101 Rev B 48 Service Manual VELA Ventilator Systems 2 5 Touch Screen Calibration 1 Enter the SVT Calibration scre
13. 21542 4 ea Battery Tray Cable Assy PIN 15719 Figure 3 3 Battery Tray assembly Removal 1 Remove the power cable and top cover 2 Remove the 4 Phillips pan head screws in the battery tray 3 Liftthe battery tray out of the unit 4 Disconnect the batteries from the white Molex DC power connector Note When the batteries are disconnected the system will automatically re set the battery status memory and will initiate a 30 hour re charge cycle upon re connect If the DC status light is not green after the initial charging period has expired contact Cardinal Health tech support as described in Appendix A Installation Follow removal process in reverse order L2859 101 Rev B 12 Service Manual VELA Ventilator Systems Right Panel Containing the Power PCB P N 16351A 48 V Supply Red Black P1 L PL N GND 400 F401 F402 F300 J5 F301 3 8A 3 8A 25 25 5A PIN 71615 P N 71615 PIN 71614 P N 71614 PIN 03794 Figure 3 4 Power PCB Assembly Note The internal battery fuse is located on the power PCB See F301 in figure 3 4 Removal 1 Remove the power cable top cover and battery tray 2 Remove the 2 Phillips countersink screws from the right side of the rear panel 3 Remove the 1 Phillips countersink screw in the upper front of the right panel 4 Remove the 1 Phillips pan head screw in the lower center of the right panel Gently lift out the pane
14. 6 Calibration 37 ud 37 Galibratiomiarid Test Killu u qa usapu 38 Chapter 7 Operational Verification Procedure 43 D 49 2 0 P rtormancesTOS a Cu RTL 44 Operational Verification Procedure 49 Chapter 8 Troubleshooting Codes Messages 51 UVT Test Troubleshooting 51 Delivered Volumes Test Troubleshooting 52 Monitored Volume Test 66 52 FiO2 Performance Test 53 Battery Performance Test Troubleshooting 53 Chapter 9 Frequently Asked Questions 55 Chapter 10 Maintenance and 59 Cleaning amp Sterllizatloki 2 ea teens 59 M 59 SISMIZAUOM 2 60 Other ACCOSSOTBS note 61 Recommended Periodic Maintenance
15. 60417 Symbol 01 37 IEC 60878 This symbol indicates OUTPUT Symbol 45019 IEC 60417 Symbol 01 20 IEC 60878 This symbol indicates protective EARTH ground Symbol 45021 IEC 60417 Symbol 01 24 IEC 60878 This symbol indicates the EQUIPOTENTIAL connection used to connect various parts of the equipment or of a system to the same potential not necessarily being the earth ground potential e g for local bonding Symbol 5333 IEC 60417 Symbol 02 03 IEC 60878 This symbol indicates TYPE BH equipment which indicates equipment that provides a particular degree of protection against electric shock particularly with regards to allowable leakage current and reliability of the protective earth connection Symbol 5032 IEC 60417 Symbol 01 14 IEC 30878 This symbol indicates the equipment is suitable for alternating current Symbol 5049 IEC 60417 This Symbol indicates the ON condition for a part of the equipment When pressed the ventilator will operate from the MAINS voltage if connected or internal or external batteries if the battery charge is within operating specifications Symbol 5007 IEC 60417 Symbol 01 01 IEC 60878 Indicates ON Power Symbol 5008 IEC 60417 Symbol 01 02 IEC 60878 Indicates OFF Power o lt 5 Symbol 0651 ISO 7000 Horizontal return with line feed Indicates ACCEPT entered values for a specific field eo gt
16. Cell gently slip the old battery out being careful not to stress the holding arm spring 3 Install new battery with care 4 Reinstall the front panel assy 5 Discard the battery in accordance with local laws Replacing the left panel w power PCB and top cover assy 1 Lean the right panel up to the VELA slide in the front then push in the rear Reattach the screws on the rear 2 front 1 and lower edge of the right side 3 2 Toinstall the battery tray re attach the large white Molex connector and make sure it lays between the muffler elbows as you replace the battery tray onto the VELA This will ensure that there is enough space for the large capacitor attached to the Battery tray Re attach the 4 screws holding the battery tray in place Reconnect the ribbon cable 3 Slide the cover in place from the rear and push the top front edge home under the lip Attach the 4 screws on the rear of the cover 4 Reattach the power cord and re attach the power cord guard with the two screws 5 Perform Ventilator OVP and performance test Chapter 7 L2859 101 Rev B VELA Ventilator Systems Service Manual 37 Chapter 6 Calibration Procedure Calibration Note All personnel performing preventive maintenance and product repair must be trained and certified by Cardinal Health to service the product Test Set up To transducer Solenoid tubing To pressure manometer 0 to 60cmH2O High pressure gas source wall
17. Mounting Screw Holes 3 on bottom Not Shown Figure 3 11 Inlet filter screen L2859 101 Rev B VELA Ventilator Systems Service Manual 19 Removal 1 Prior to removal of the Back Panel the Inlet Filter Screen must be removed 2 Remove the seven 7 mounting screws securing the screen to the Manifold base assy Installation Follow removal process in reverse order Oxygen Sensor P N 16101 Figure 3 12 O2 Sensor Cell Removal After removing the inlet filter screen you will be able to access the O2 cell 1 The O2 sensor is visible on the left Disconnect the O2 cell wire connector from the manifold base 2 Twistand pull the O2 cell firmly to remove Installation Follow removal process in reverse order Rear Panel P N 16346 S N AHT07499 amp Below Rear Panel P N 16559 S N AHT07500 amp Above Peripheral Interface PCBA PIN S208 Alarm Speaker Assy P N 16357 On Off Switch PIN 68153 Fan Assy PIN 16256 Power Entry Module P N 15890 Patient Assist call PCBA P N 50570A Figure 3 13 Rear Panel assembly L2859 101 Rev B 20 Service Manual VELA Ventilator Systems Removal 1 2 3 2 6 3 After the Turbine assy has been removed Disconnect the Remote Alarm cable connector at J2 on the Remote Alarm PCBA Disconnect the Main Power Switch wires brown black from Main Power switch Turn the unit on its side Remove 3 Phillips pan head screws securing the rear panel to the Manifold Base
18. Replace Alarm speaker Assy P N 16357 Leak Test fails 1 External circuit leaks wrinkled exhalation diaphragm valve body damaged 2 Pressure relief valve not set 3 Internaltubing leaking 4 Insp hold solenoid leaking 5 Anti suffocation check valve leaking or damaged 6 Manifold base o rings damaged or manifold cracked 1 Ensure circuit is a reusable permanent type Turn ventilator off Remove Valve Body and reseat the diaphragm assy Inspect and replace valve body if damaged 2 Adjust relief valve clockwise until seated completely 3 Check dryer tube luer lock connecters for tightness 4 Ontop of Insp Hold Solenoid are two wires press with thumb between these wires during the test If leak stops call Cardinal Health Technical Support 5 Pull Turbine outlet boot out of the manifold and look in boot cavity for Check Valve P N 20651 If missing replace 6 Remove bottom plate of manifold and remove the red silicone O ring s Inspect O ring grooves for cracks if found replace manifold assy P N 16348 L2859 101 Rev B 51 52 Service Manual Delivered Volumes Test Troubleshooting Problem Possible Cause Action Delivered volumes are out of the 10 specification Altitude setting is not accurate for location Transducer has drifted over time Turbine filters are dirty Turbine characterization is no longer valid 1 Check a
19. STATUS CHANGES TO THIS DRAWING MUST BE REFLECTED ON DRAWING 50630 lt BLENDER PCBA SCALE NONE nor one SHEET OF VELA Ventilator Systems Service Manual 92 FILTER O2 INLET 0 X PSIG O2 INLET 40 85 PSIG MICROCOMPUTER CONTROLLER EXHALATION PRESSURE TRANSDUCE TURBINE I I I I PRESSURE I I I L O2 SENSOR TRANSDUCER I A DIFFERENTIAL TRANSDUCER 5 MIXING CHAMBER TO PATIENT INLET ISIL ENCER amananananananananangmunanananananam q 1 i 3 I ER LPM 145 0 LPM 40LPM FILTER ORIFICE TORIFICE ORIFICE INSPIRATIONI if i HOLD VALVE I I d o F 2 Sf nn I Wa OUTLET i SILENCER KL i I SOLENOIC SOLENOIG SOLENOIG SOLENOID SOLENOID I VALVE VALVE VALVE VALVE PRESSURE 1 SOLENOID SAFETY REGULATOR Ecc E RELIEF VALVE i o A SUB AMBIENT Dod O2 SYSTEM TURBINE RELIEF VALVE i EE te er ee re NEBULIZER 6 0 LPM ORIFICE ORIFICE j NOTE UNLESS OTHERWISE SPECIFIED PNEUMATIC SYSTEM VELA ALL OXYGEN FLOWS CALIBRATED AT 40 PSIG INLET P
20. Turbine and Muffler Assembly P N 16350 18 Turbine reorder P N 16349A 18 Inlet Filter Screen P N 21575 18 Oxygen Sensor P N 16101 19 Rear Panel P N 16346 S N AHT07499 amp 19 Rear Panel P N 16559 S N AHT07500 amp Above 19 Fan and Filter Assembly P N 16256 20 Manifold Base Assembly P N 16348 21 L2859 101 Rev B Service Manual VELA Ventilator Systems Chapter 4 Software Download 23 Software Download petet dpi 23 Ventilator Upgrade Procedure 26 Chapter 5 One Year P M Procedure 27 Contents of PM kit P N 11416 27 General Instructions and Warnings 27 ne tei pi ten 28 29 Chapter
21. VELA Ventilator Systems Service Manual Operational Verification Procedure Checklist This checklist is for use during the VELA Operational Verification Procedure Serial Number Ventilator Hours Date Serial Number Turbine Verification Steps Verification Step Check amp Initial Inspect the ventilator and components for appearance and cleanliness Confirm the Exhalation valve diaphragm and air intake filter and test lungs are correctly installed Wipe the ventilator clean if needed using a cloth moistened with an approved cleaning solution 1 0 Enterthe User Verification Test UVT 1 1 Lamp Test Verification 1 2 Switch Test Verification 1 3 Alarm Test Verification 1 3 Alarm Loudness Verification 1 4 LCD Test Verification 1 5 Leak Test Verification 2 0 Performance Test Set Parameters for Delivered Volume Test 2 1 Step 49 Delivered Volume Test at 20 Ipm 2 1 Step 10 Delivered Volume Test at 60 Ipm 2 1 Step 11 Delivered Volume Test at 80 Ipm 2 2 Monitored Volume Test Adjust Set Parameters for Monitored Test 2 2 Step 2 Monitored Volume Test Verification 2 3 FiO2 Performance Test Parameters for Fio2 monitoring test 2 3 Step 4 Monitored Value 21 setting 20 22 L2859 101 Rev B EQ 49 50 2 3 2 3 2 3 2 3 2 3 24 24 24 24 24 2 5 26 Service Manual Step 4 Monitored Value 30 setting 27 33 Step 4 Monitored Value 60 setting 55
22. assy Remove the rear panel from the manifold base Installation Follow removal process in reverse order Fan and Filter Assembly P N 16256 EMI Fan Guard Filter Guard Assy PIN 34056 PIN 35060 Fan Assy PIN 16256 Filter Media PIN 34058 5 pk Removal 1 With rear panel removed or with rear panel still installed remove the 4 5 16 s nuts from fan assembly 2 Slide the fan itself off of the four screws holding them in there place Installation Follow removal process in reverse order L2859 101 Rev B VELA Ventilator Systems Service Manual 21 Manifold Base Assembly P N 16348 Insp Hold Solenoid PIN 16355 02 Bulkhead Cable Assy PIN 16356 Insp Hold Spring PIN 21971 Insp Hold Piston Basket PIN 21013 Insp Hold Piston PIN 21950 Insp Hold Umbrella 3 Valve PIN 05528 Relief Valve Housing PIN 20779 Relief Valve Poppet PIN 20511 Relief Valve Spring PIN 31023 Relief Valve Adjuster PIN 20865 Figure 3 14 Manifold Base Assembly Note This manifold base is a complete assembly and can only be ordered as P N 16348 It will come from the factory completely tested with components as pictured CAUTION Further disassembly of the manifold base is not recommended If further disassembly is performed there is no guarantee from Cardinal Health that the manifold will function properly L2859 101 Rev B 22 Service Manual This page was
23. including updating the active matrix liquid crystal display LCD monitoring the membrane keypad analog resistive touch screen and optical encoder for activity The Main System PCB also performs all the input output functions of the UIM including RS 232 GSP and printer video output and IEEE 1073 Medical Information Bus MIB L2859 101 Rev B VELA Ventilator Systems Service Manual 5 Liquid Crystal Display The liquid crystal display LCD provides graphical and digital feedback to the clinician The panel is a 10 4 SVGA 800x600 pixel active matrix LCD The LCD is used to implement the graphical user interface GUI It provides all of the adjustable controls and alarms as well as displays waveforms loops digital monitors and alarm status in real time Touch Screen The touch screen is a 10 4 analog resistive overlay on a piece of glass which is placed over an LCD screen The touch screen and the LCD together provide a set of software configurable soft keys The software enables the keys to be context sensitive The touch screen has a resolution of 1024x1024 Physically the touch screen consists of two opposing transparent resistive layers separated by insulating spacers Touching the screen brings the two opposing layers into electrical contact The Y coordinate is determined by applying a voltage from top to bottom on the top resistive layer This creates a voltage gradient across this layer The point of contact forms
24. obtain VELA Ventilator parts contact customer service at Hours 7 00 Am to 4 30 PM Pacific Time Monday through Friday Phone 800 328 4139 From within the U S only 714 283 2228 Fax 714 283 8473 or 714 283 8419 Online service for warranty replacements parts can be found at cardinalhealth com Select Warranty Form from the choices on the left of the screen Cardinal Health Customer Care Help line Hours 24 hours seven days a week Phone From within the U S only 800 934 2473 or 800 231 2466 or 800 520 4368 Fax 714 283 8473 or 714 283 8419 L2859 101 Rev B 68 Service Manual This page was intentionally left blank VELA Ventilator Systems L2859 101 Rev B VELA Ventilator Systems Service Manual 69 Appendix B Reordering Instructions For front panels S N AHT07499 and below The VELA series ventilator has had three different platforms since it s release in 2002 VELA T 2 VELA CF 1 amp VELA CF 2 The major differences between the three platforms is seen in the Front Panels VELA T 2 used a modified Main PCB from the T Bird series ventilators and a separate video PCB When we went to the VELA CF platform we had a new Main PCB that incorporated it s own Video capabilities with FiO2 monitoring as well This was a solid PCB that would allow the ventilator to have external software downloads with minimal down time waiting for parts to be shipped Our software updates and upgrades are obtainable through ou
25. pour cleaning liquids over into or onto the ventilator Cleaning Cleaning of External Surfaces All external surfaces of the ventilator can be wiped clean with a soft cloth using Isopropyl Alcohol Cleaning of Accessories and Ventilator Parts Accessories The following accessories can be cleaned using Klenzyme e exhalation valve body e exhalation flow sensor e exhalation diaphragm Cleaning Method for the Exhalation Valve Assembly Remove the Exhalation Valve Assembly for Cleaning 1 Press and hold the release latch on the lower left of the exhalation valve housing 2 Grasp the exhalation valve body rotate it counter clockwise until the alignment slots line up and then gently pull it free from the housing 3 Grasp the exhalation valve diaphragm by the center and remove it from the exhalation valve body 4 Using a clean soft cloth and Isopropyl Alcohol wipe all exposed surfaces around the exhalation valve housing Do not allow cleaning fluid to spill into the opening in the exhalation valve housing To Clean the Exhalation Valve Body Flow Sensor and Diaphragm 1 SoakinKlenzyme solution for 5 minutes Klenzyme bath may be heated to a maximum of 67 152 F 2 Rinse in distilled water After cleaning the surfaces make sure all excess cleaning solution is completely removed to prevent residue buildup Dry with a soft cloth or allow to air dry L2859 101 Rev B 60 Service Manual VELA Ven
26. setting for 30 on front control panel and allow reading to settle for 1 minute On the side of the blender there are five solenoids and five needle valves see Figure 3 9 page 16 using a 3 16 s nut driver loosen the top jam nut on the 5 LPM needle valve in the top position of the blender aluminum block Using a 1 16th inch hex head wrench insert the tip through the hole in the jam nut and adjust the needle to either increase FIO2 value counter clockwise or decrease clockwise to achieve a reading of 30 1 The adjustment must be made within the first 1 5 Minutes of setting the FiO2 of 30 Tighten the Jam nut and allow reading to settle within Specifications Set the O2 setting for 90 on the front control panel and allow reading to settle for 1 minute Repeat above procedure adjusting the 15 LPM needle valve this valve is the second valve from the top of the blender aluminum block Adjust it as mentioned above for the monitored value of 90 1 After making final adjustments to the blender 5 LPM and 15 LPM needle valves and making sure the needle valve jam nuts are secure Check all settings of the FIO2 range from 21 to 100 Check the O2 settings and confirm that accuracy is within 3 through out the blender range L2859 101 Rev B VELA Ventilator Systems Service Manual 43 Chapter 7 Operational Verification Procedure 1 0 UVT Functions Screen 1 Connect ventilator to a properly grounded A C electrical outlet
27. will be able to see a pressure drop during every inspiration The Low O2 inlet alarm is triggered when the pressure drops below the low alarm setting which is 35 psig for more than 30 seconds Q How often do need to change the O2 cell A Every 900 000 O2 hours O2 cell life is stated in oxygen percent hours The formula is O2 Concentration 96 x Exposure time hours Once the cell is exposed to ambient air out of its package it starts clicking off 21 oxygen hours every hour When it is in use at say 60 you are then using 60 oxygen hours every hour it is used at 60 So with a life of above 900 000 oxygen hours it averages out to about 2 years of use The O2 cell industry states this info based on an average setting of about 50 with constant use Why does it take so long for the FiO2 alarms Check O2 Cal and 02 Range Error to alarm A The Oxygen blending circuit in the VELA is quite unique in its operation The blender is microprocessor software controlled with many variables considered FiO2 setting volume flow breath rate FiO2 cell data etc to create a firing order or algorithm for the blender solenoids to be able to maintain the accurate O2 concentrations When you set a FiO2 value on the front panel all of this goes into play The initial information from the FiO2 setting and variables mentioned above are taken into account after 90 seconds the processor compares the set value to the monitored value and if the inp
28. 0 6 64077 ZVP3306F P 60V 200mA 14 OHMS J2 CONNePIN 2 POS MTA IOO STRAIGHT 10022 35OmWw 25 L SS p 6 st lt FET ner d IOO PSI OUTPUT lOOmV 25mV OmV 2 5mV TO FROM MAIN PCBA GAIN MAX W 24 000000000000 Js0 12 MTA IOO STRAIGHT 1 640456 2 100 12 70199 L2859 101 Rev B 105 100x20H 5S L0 6 64077 J3 1 2 5 STRAIGHT 100 2 105 100x20H 5S L0 6 64077 J4 CONNePIN 2 POS MTA IOO STRAIGHT 100 2 cs I20uF 65 1 lt 5 2 40 105 100x20H 5S L0 6 64077 J5 CONN PIN 2 POS STRAIGHT 100 2 TYPICAL OUTPUTS NOT WORST CASE XDCR TYPE 50 PSI 100 PSI LOw OUT 1637mV 277 INT GAIN R I998mV TYPICAL 2016mv 3535mV HIGH OUT 2396mv 4294mV PSI OUTPUT 498mV rem DEK ALL SWP DY 46 CAMPER FIRST amp LAST THREADS 45 5 CONC TOLERANCE 005 F I M 6025 6025 7 INTERPRET PER NGI YI4 cRrTICAL component vevice aom m noes Loy OS P 2 REVISIONS __ PROD REL PER ECO 53153 DD es a REVISED PER ECO 53312 11 1 9 C REVISED PER ECO 53847 JKD D REVISED PER ECO 54001 JKD D NOTES uwLEss OTHERWISE SPECIFIED 1 REVISION
29. 0 PSIG Oxygen gas source is connected to the High Pressure inlet assembly on the rear of the VELA Continue to operate ventilator with current settings from monitored volume tests Select FiO2 monitor window on left side of screen to read monitored O2 results With control setting at 21 the monitored value should read 20 22 Adjust O2 control setting to 30 the monitored value should read 27 33 Adjust O2 control setting to 60 the monitored value should read 55 65 Adjust O2 control setting to 90 the monitored value should read 85 95 Adjust O2 control setting to 100 the monitored value should read 95 100 Adjust O2 control setting to 21 the monitored value should read 20 22 Note If this test does not pass do not continue with performance test Turn to Chapter 9 Troubleshooting section under FiO2 Performance Test and follow the troubleshooting guide for the failed test L2859 101 Rev B VELA Ventilator Systems Service Manual 47 2 4 Battery Performance Tests A o Mode Pressure AC Breath Rate 80 BPM Insp Press 75 cmH20 Insp Time 0 5 sec PEEP 5 cmH20 Prior to executing the following test perform a battery charge controller reset To properly reset the charge controller you must disconnect the batteries from the power PCB after vent cover is removed disconnect one of the battery connecters Connect AC and power vent up to operation and then power down reconnect the batteries and follow
30. 1 004 Service Manual 81 VELA Ventilator Systems L2859 101 Rev B Service Manual 82 VELA Ventilator Systems oooooooooooooo From POWER PCBA 61104 0 01oF MOUNTING HOLES ON CONNECTOR EDGE 4 MH RENA TK MOUNTING MES MHG HBTS mao FID o o o Note Unless otherwise stated the resistors are a 0605 package and 5 Tol Note Unless otherwise stated the capacitors are a 0805 package and 10 Tol L2859 101 Rev B 10k 25C gii 1 0f 5 5v OSM5 Super Cap Service Manual ALARM CIRCUIT 74 00 50 10543 0004 83 VELA Ventilator Systems L2859 101 Rev B R1209 m1210 R1211 0 0K 210 0 609 2627 2 1437045 5 Service Manual 84 VELA Ventilator Systems Service Manual MAT L 5 CONS TOLERANCE F I M 8 T 6 5 4 3 8 L2859 101 Rev B secs Reve 7 INTERPRET PER AMET vie CRITICAL _ COMPONENT Danse a omet m FINISH P so2 B SCALE NONE nor scars onre OF 85 E S ANN MC _ e REN m barro ommo A PROD REL PER ECO 53205 DD 9 24 99 REVISED ECO 5368 Zl D D OM 92 PIN HEADER S POS POL LOCK 100 640456 4 70033 MTG HOLE GROUND PANEL LI t FERRITE BEAD
31. 2 Install diaphragm P N 16240 Valve Body P N 20005 and Flow sensor P N 15972 to the front of the ventilator 3 Press and hold the ACCEPT button on front panel as you turn on the ventilator Continue to hold the ACCEPT button until vent boots up completely 4 Select Patient Removed 1 1 Select Lamp Test 1 Verify all LED s are flashing except AC and Charge Status 2 Verify the Display Monitor Lamp Test in Progress ON OFF 1 2 Select Switch Test 1 Pressthe ACCEPT button once ACCEPT will be displayed in monitor window 2 Pressthe following switches and verify the correct name of the switch pressed appears in monitor window Switch Activated ALARM SILENCE ALARM RESET FREEZE INSP HOLD MANUAL BREATH EXP HOLD NEBULIZER 100 O2 PANEL LOCK ACCEPT CANCEL 1 3 Select Alarm Test 1 Verify Alarm Activates 2 Verify Alarm loudness function 3 Press Alarm Test and verify Alarm Deactivates L2859 101 Rev B Message in Window Silence Reset Freeze INSP Hold Manual Breath EXP Hold Nebulizer 10096 O2 Lock Accept Cancel 44 Service Manual VELA Ventilator Systems 1 4 Select LCD Test 1 Select Dim Screen and verify screen intensity level dims Select Bright Screen and verify the screen returns to normal intensity 2 3 Select Video Normal and verify Screen has turned white 4 Select Video Inverse and verify the screen returns to normal operation 1 5 Connect Leak Test Circuit to the ventil
32. 4 PART OF 16049 16355 PART OF 16348 524301 PART OF 16349 PART OF 163501 WIRING DIAGRAM 10424 l PARI OE LIST leone 200 NOT scm SHEET 8 OF 3 L2859 101 Rev B 71 VELA Ventilator Systems L2859 101 Rev B 10665 PART OF 15895 Service Manual PNEUMATIC DIAGRAM REV NOT SCALE DRAWNO SHEET OF 9 72 VELA Ventilator Systems THIS DOCUMENT AND ITS CONTENTS THIS DOCUMENT ARE CONFIDENTIAL AND ARE NOT TO BE COPYRIGHTED PROPERTY DISSEMINATED TO THIRD PARTIES THIS DOCUMENT IS THE EXCLUSIVE OF VIASYS HEALTHCARE S RESPIRATORY CARE BUSINESS UNIT AND MAY NOT BE REPRODUCED OR DISTRIBUTED IN WHOLE OR IN PART WITHOUT ITS PRIOR WRITTEN PERMISSION OR USED FOR PURPOSES OTHER THAN AS EXPRESSLY AUTHORIZED mm Ip i3 vcc3 R101 A102 100 100K R100 1 L2859 101 B 8 B8B8P88BBBBBBBS B88886888858566 Service Manual NN UW W UU UY CM ip ni 62606 RELEASE FOR PILOT amp o FOR PILOT a encoucrrow azuzasz 208 215 001 ciii 6113 115 0 1uF 0 1uF 6 1uF Cios C107 C109 212 C114 116 0 0010 O 001uF 0 0010 0 001uP 0 0010 0 001uF FOR LEFT EDGE FOR RIGHT EDGE OF CHIP PINS CHIPS PINS 15 16 89 103 111 118 19 90 94 108 131132 122 117 10 16 0 FOR EDGE 0194 PINS 117 118 133 134 121 122 732
33. 58 6 U103A 74VHC2123 eos SCHEMATIC D CORNER FILLETS amp RADI 006 010 E DESURR EDGES 208 220 VELA COLDFIRE rewel el sez PO 2 2 42 nc T a aramee mas 7 VELA Ventilator Systems L2859 101 Rev B Service Manual 7 1DIR OOK 24 Sora 324337 148 281 2 2 88888898 8888 8 74 17 16245 80203 33 74 VELA Ventilator Systems Service Manual 3 Pagus 33388838 8 AAEE z I eee Note Can use 64Mbit or 126hibit SORAM on G4Mbit device pin 21 is an intemal NC i lt 15423322008 77 SDRAM 309 caa 313 0 1uF 0 iuF 6 1uF 0303 25LC640 I SN L2859 101 Rev B VELA Ventilator Systems 0 0luF C401 0 i1uF 07 x ACHE c4o6 c40s L2859 101 Rev B oD BBERS88E BSSERBERE 5 x 2 AD al ES 4 5 A6 a AB AS Doo Dol 2 Do D97 OO EBB5558585555558 bk EEEEESEE ERSBARBEBSUB OUZO MA11 GPIO2 FZ 8401 10 0K MA10 GPIOl MD 3 1 011 GENERICA BUS MD4 0 BIG ENDIAN MOS 0 WAITS ACTIVE LOW 8 01 SYM 1 16 MO15 1 WAITS IS ALWAYS DRIVEN Service Manual PSAVE c425 0 01uF zos EZAN Ene E e DR RA A17 2 een px IOR 1 7210 50 220ur 25V luP l0V 76 VELA Ventilator Systems L2859 101 Rev B Io pD1 IO PD2 8 gt
34. 65 Step 4 Monitored Value 90 setting 85 95 Step 4 Monitored Value 100 setting 95 100 Step 4 Monitored Value 21 setting 20 22 Battery Performance Test Parameters for Battery Duration Test Step 1 Battery Charge Controller Reset Step 6 Record Start time of test Step 8 Verify On Battery Power message Step 10 Battery Performance and Duration Test Verification Touch Screen calibration Charge Status Verification Signature Procedure Complete po 11 Spr el MESS dede SENS UE VELA Ventilator Systems L2859 101 Rev B VELA Ventilator Systems Chapter 8 Troubleshooting Codes Messages Service Manual UVT Test Troubleshooting Problem Possible Cause Action Lamp Test has various LED s Front Control Panel has open Replace Control Panel P N 80519 that do not light during test traces to lights or damaged LED s and Overlay P N 80520 01 English P N 80520 00 Icons During Switch Test not all switches activate with indicated nomenclature Front Control Panel has open traces to switches or damaged switches Replace Control Panel P N 80519 and Overlay P N 80520 01 English 80520 00 Icons Alarm Test fails to activate Front Control Panel has open traces to switches or damaged switches Alarm speaker is not functional 1 Replace Control Panel P N 80519 and Overlay P N 80520 01 English 80520 00 Icons Check Speaker wires to speaker and main PCB ensure proper connection
35. 8 D 10pk 1 Nut Driver 1 8 ID silicone tubing P N 04029 X 50ft 5 16 Nut Driver Adult Test Lung P N 33754 11 82 Nut Driver Adult Patient Circuit P N 10684 Digital Volt Meter Variable Orifice Flow Sensor assembly P N 15972 Tack puller or Needle nosed pliers Valve Body P N 20005 Diagonal cutters Tapered nipple P N 00680 1 34 open ended wrenches Hex nut P N 00822 Pressure Manometer cmH20 and psig Regulator P N 6754 L2859 101 Rev B 2 Service Manual VELA Ventilator Systems Recommended Maintenance Schedules Schedules Every 500 hours the fan and ambient air filters should be cleaned and replaced if necessary Every year the following preventive maintenance procedure should be performed see chapter 4 for instructions This procedure includes e Install PM kit P N 11416 e Perform verification procedures described in Chapter 4 e Calibration of the transducers solenoids if necessary Every 10 000 hours or every two years whichever occurs sooner the internal oxygen sensor P N 16101 and internal batteries P N 21542 4 ea should be replaced Maintenance on the VELA should only be carried out by a trained and authorized service technician Cardinal Health will make available to qualified technicians service manuals and such items as circuit diagrams component parts lists calibration instructions and other information to assist in repair of those parts of the ventilator designated by the manufacturer as repairab
36. 897 over it with the lip facing towards the check valve Place the new cone filter P N 06804 onto the delrin washer and push gently until you are sure it has seated correctly Replace the fitting and tighten down with the 34 inch open end wrench Replacing the filter retaining ring and check valve on the hi pressure fitting Using a 34 inch open end wrench loosen and remove the threaded high pressure oxygen fitting this is a two piece fitting remove only the outer threaded retainer fitting Remove the white cone filter the white delrin washer amp the black duck billed check valve as described above Figure 5 9 Unscrew the high pressure O2 fitting Install a new black check valve and make sure it is seated Install a new white delrin washer with the lip down as shown in figure 5 and described above Place the cone filter on the delrin washer and push gently to seat Replace and tighten down the fitting with a 34 inch open end wrench Figure 5 4 Installing the Delrin Washer Replacing the muffler and muffler filter assemblies Note Always take precautions against static discharge when working with the ventilator Retain all hardware for re assembly From the back panel remove the power cord guard by unscrewing the two retaining screws as shown in figure 6 Unplug the power cord Figure 5 5 Removing the power cord guard L2859 101 Rev B 32 Service Manual VELA Ventilator Systems Unscrew the screws holding o
37. 9 101 Rev B 10 Service Manual VELA Ventilator Systems Disassembly and Reassembly Procedures To perform a complete disassembly of the unit follow all of the steps in each removal section in the order presented in this chapter To reassemble the unit follow all of the steps in each Installation section in reverse starting with the last component and finishing with the power cable installation instructions Power Cable Figure 3 1 Power Cord and Bracket Removal 1 Remove the 2 Phillips pan head screws in the top portion of the power cable guard at the rear of the unit see figure 3 2 2 Remove the guard and unplug the power cable Installation Follow removal process in reverse order Top Cover P N 15893 Phillips Pan Head Screws Small Side Panel Screws See PIN 03448 Screw Kit See P N 03446 Screw Kit Figure 3 2 Top Cover Assembly L2859 101 Rev B VELA Ventilator Systems Service Manual 11 Removal 1 Remove the power cable 2 Remove the 4 Phillips pan head screws in the back panel 3 Remove the 3 screws from the bottom of each side of the ventilator if present 4 When all screws have been removed slide the top cover towards the rear of the unit and lift off Installation Follow removal process in reverse order Battery Tray P N 16049 Reorder P N 16048 50 Pin RCPT Lg Tie Strap 63 VDC Elect Cap Cable P N 70424 P N 05038 4 ea PIN 64084 Battery Assy 12 Volt PIN
38. A wiring and tubing diagrams Reference copies of these are located in Appendix B of this manual Ensure that you follow these safety warnings and precautions Figure 3 0 Battery Disconnect Molex Connector WARNING Always disconnect the main power cable before removing the instrument cover and disconnect the battery once the top cover and battery tray have been removed to prevent injury and or damage to the VELA Ventilator System see figure 3 1 CAUTION The VELA contains ESD susceptible components Ensure you are properly grounded through a current limiting connection before performing any service or maintenance procedures and store ESD susceptible electrical components in anti static bags to prevent damage to the components Note When the batteries are disconnected the system will automatically re set the battery status memory and will initiate a 30 hour re charge cycle upon re connect If the DC status light is not green after the initial charging period has expired contact Cardinal Health tech support as described in Appendix A Note The terms left and right refer to a view from the front of the unit looking towards the rear Required Tools Long amp short Philips screwdrivers Digital Volt Meter Flat bladed screwdriver Tack puller or Needle nosed pliers Nut Driver Diagonal cutters 5 16 Nut Driver 11 32 Nut Driver 7 8 Nut Driver 1 and 34 open ended wrenches L285
39. L2859 101 Rev B 16 Service Manual VELA Ventilator Systems Flow Sensor Receptacle assembly P N 16106 High Pressure Port Low Pressure Port PIN 51000 40275 Receptacie Gap PIN 30025 O rings Figure 3 7 Flow Sensor Connector Removal After removal of the Front Panel and the Main PCBA the Flow Receptacle is accessible and can be removed by sliding the receptacle off of the threaded studs that are part of the LCD panel Installation Follow removal process in reverse order Exhalation Valve Assembly P N 16417A Bas Dryer Tube assy PIN 10631 Ezhalation Valve Receptacle PIN 21345 Figure 3 8 Exhalation Valve Assembly Removal After removal of the Front Panel Assy follow the steps below 1 Remove the two mounting screws securing the Exhalation Valve assy and remove Installation Follow removal process in reverse order L2859 101 Rev B VELA Ventilator Systems Service Manual 17 Blender Assembly P N 16358A Nebulizer Solenoid Blender PCBA High Pressure Cavity P N 50630A Low Pressure Cavity Blender Solenoid 02 shut off Solenoid P N 15578 5 ea 16352 5 Ipm valve assy P N 10406 40 PSIG Pressure Regulator P N 33030 15 Ipm valve assy P N 10407 48 Ipm valve assy P N 10408 Figure 3 9 Blender assembly Removal 1 Remove the power cable top cover battery tray and left panel If the rear panel is installed remove the high and low pressure oxygen fittings fro
40. Main wire cable at J16 On the Main PCBA disconnect the Alarm Loudness cable at J19 On the Main PCBA disconnect the O2 Cell cable at J12 On the Main PCBA disconnect the Nurse Call cable at J18 On the Main PCBA disconnect the Exhalation Valve cable at J15 Onthe Main PCBA disconnect the Gas dryer Tube from the Luer fitting From the Left side of the Vent remove the following cables and tubing 10 On the Main PCBA disconnect the O2 and Nebulizer Solenoids at J23 amp J24 11 Onthe Main PCBA disconnect the Blender Cable Assy at J13 12 On Main PCBA disconnect the Turbine Encoder cable at J6 13 On the Main PCBA disconnect the green Nebulizer tube assy 14 On the Main PCBA disconnect the 1 8 amp 1 4 ID tubing from the turbine assy 15 Remove the two 2 front panel mounting screws from the back inside corners of the front panel assy ROOM L2859 101 14 Service Manual VELA Ventilator Systems Installation Install Front Panel Assy and follow removal process in reverse order Front Panel for VELA ColdFire 2 S N AHT07500 amp Above Note All Front Panels for the ColdFire 2 ventilators SIN AHT07500 amp above come without the Main PCB assemblies The Main PCB must be ordered separately P N 16687 0A VELA Basic Front Panel Used for Domestic English Overlay P N 16687 1A VELA Plus Front Panel Used for Domestic English Overlay P N 16687 2A VELA Comprehensive Front Panel Used for Domes
41. Monitor verify that the altitude is set correctly and vent has been running for a minimum of 30 minutes to ensure that the sensor is at proper operating temperature The FiO monitor calibration is located in the UVT screen FiO2 Monitor Calibration amp gt Connect 50 PSIG O2 source to the high pressure O2 inlet assembly Enter Extended Functions screen and select Vent Setup Select FiO2 Monitor Enable only if FiO2 Monitor Disable is showing Select exit and return to Extended Functions screen Select the FiO2 monitor Calibration button and perform a complete calibration of both the ambient and the 100 calibrations This may take 3 5 minutes each L2859 101 Rev B 42 Service Manual VELA Ventilator Systems Blender FIO2 Calibration 1 Make sure the ventilator is in normal operating mode before adjusting the blender The switch 1 on the SW900 must be in the OFF position Connect 50 PSIG O2 source to high pressure inlet assembly Attach a test circuit made of reusable patient tubing with the test lung p n 33754 Power up ventilator and make the following adjustments to settings on front panel Set Ventilator parameters as follows Mode Volume Assist Control Volume 500 ml Peak Flow 60 Ipm Breath Rate 12 bpm PEEP 5 cmH20 Adjust all other controls and alarm limits out of range of operation to either OFF or min max settings for alarms 5 6 10 10 Set the O2
42. QUASI STATIC 1993 This ventilator is also designed and manufactured to comply with the safety requirements of IEC 601 1 IEC 601 2 12 CAN CSA C22 2 No 601 1 M90 and UL 2601 1 MRI Notice This equipment contains electromagnetic components whose operation can be affected by intense electromagnetic fields Do not operate the ventilator in a MRI environment or in the vicinity of high frequency surgical diathermy equipment defibrillators or short wave therapy equipment Electromagnetic interference could disrupt the operation of the ventilator Intended Use Notice The Vela Ventilator is intended to provide continuous or intermittent ventilatory support for the care of individuals who require mechanical ventilation The ventilator is a restricted medical device intended for use by qualified trained personnel under the direction of a physician Specifically the ventilator is applicable for adult and pediatric patients weighing at least 10 kg 22 lbs who require the following general types of ventilation support as prescribed by an attending physician e Positive pressure ventilation Assist Control SIMV or CPAP modes of ventilation The ventilator is suitable for use in institutional and transport settings It is not intended for use as an emergency medical transport ventilator or for homecare applications Regulatory Notice Federal law restricts the sale of this device except by or on order of a physician IEC Classification T
43. RESSURE L2859 101 Rev B VELA Ventilator Systems Index accessories 61 active matrix LCD 4 B back light inverter 4 5 battery status 9 11 28 battery tray 11 gt calibration curves 1 cleaning accessories 59 exhalation valve assembly 59 external surfaces 59 complete disassembly of the unit 10 customer service 67 D DC power connector 11 diaphragm 59 60 differential pressure 3 disconnect the battery 9 27 drawings diagrams and schematics 2 E electronic 4 ESD susceptible electrical components 9 27 exhalation system 3 6 exhalation valve 59 60 exhalation valve assembly 16 F filters 2 flow delivery system 6 Flow Delivery System 3 flow sensor 59 60 L2859 101 Rev B Service Manual 93 front panel description VELA ColdFire 2 14 reorder instructions 69 E inspiratory hold solenoid 35 inspiratory hold valve 4 light emitting diodes 5 liquid crystal display 5 M main controller system 6 maintenance 61 maintenance schedules 2 membrane key panels 4 membrane panel 5 method of sterilization 60 N NIST 1 EE optical encoder 4 5 oxygen blending system 4 7 performance checklist 49 pneumatic system 3 power cable guard 10 power PCB 12 power system 5 R rear panel 20 94 resistive touch screen overlay 4 safety system 4 service calls 67
44. Replacing the fan filter yf Pop out the fan filter retaining grid using a flat tip screwdriver Pinch amp 29 pull out the foam filter Small filter P N 33801 Large filter P N 34058 see figure 1 To install a new filter carefully place the new filter in the fan housing and place the retaining grid back onto the fan housing Check to make sure there are no creases or folds in the foam filter as this will reduce its efficiency and could allow contaminants into the ventilator body Push the retaining grid until all four tabs click into place Figure 5 0 Pinch and remove foam fan filter Replacing the filter retaining ring amp check valve on the low pres 2 fitting Using a 34 inch open end wrench loosen and remove the low pressure oxygen fitting from the back panel as shown in figure 2 Figure 5 1 Unscrew the low pressure O2 fitting Remove the white cone filter P N 06804 and dislodge amp remove the white delrin retaining step washer P N 03897 use needle nose pliers if needed Using needle nose pliers pull the black duck billed check valve P N 03895 out Figure 5 2 White Delrin retaining step washer and duck billed check valve L2859 101 Rev B VELA Ventilator Systems Service Manual 31 To replace take a new black duck billed check valve P N 03895 and insert it into the fitting Tap lightly with the end of a screwdriver to make sure it is seated then place a new delrin retaining step washer P N 03
45. S identify conditions or practices that could result in serious adverse reactions or potential safety hazards CAUTIONS identify conditions or practices that could result in damage to the ventilator or other equipment NOTES identify supplemental information to help you better understand how the ventilator works Warnings Warnings and Cautions appear throughout this manual where they are relevant The Warnings and Cautions listed here apply generally any time you operate the ventilator e The VELA Ventilator is intended for use by a trained practitioner under the direction of a qualified physician When the ventilator is connected to a patient a trained health care professional should be in attendance at all times to react to an alarm or other indications of a problem e Alarm loudness must be set above ambient sound in order to be heard e Always have an alternate means of ventilation available whenever the ventilator is in use e operator should not touch the electrical connectors of the ventilator or accessories and the patient simultaneously e Due to possible explosion hazard the ventilator should not be used in the presence of flammable anesthetics e Anaudible alarm indicates an anomalous condition and should never go unheeded e Anti static or electrically conductive hoses or tubing should not be used within the patient circuit f a mechanical or electrical problem is recognized while running the Operational Verificatio
46. Service Manual VELA Ventilator Systems T tools amp equipment 1 touch screen 5 turbine gas delivery system 3 UIM 4 L2859 101 Rev B
47. VELA ventilator Service manual CardinalHealth Service Manual VELA Ventilator Systems 2008 Cardinal Health All rights reserved No part of this document may be reproduced stored or transmitted in any form or by any means without the written permission of Cardinal Health except as specifically permitted under the copyright laws of the United States of America VELA is a registered trademark of the Cardinal Health group of companies Other brands and their products are trademarks of their respective holders and should be noted as such USA Authorized European Representative Cardinal Health Cardinal Health Germany 234 GmbH Respiratory Technologies Leibnizstrasse 7 1100 Bird Center Drive 97204 Hoechberg Palm Springs California 92262 8099 Germany Telephone 800 231 2466 Telephone 49 931 4972 0 1 714 283 2228 49 931 4972 423 Fax 1 714 283 8493 cardinalhealth com 0086 Literature number L2859 101 Revision B L2859 101 Rev B VELA Ventilator Systems Revision History Service Manual Date Revision Pages Changes September 2006 A NA NA May 2008 B 2 10 20 23 25 27 37 Updated for VELA Coldfire 2 40 42 44 46 57 60 63 66 69 92 Throughout the document Changed VIASYS Healthcare to Cardinal Health and Cardinal Health Respiratory Technologies Changed Vela to VELA viii Updated Intended Use Notice and IEC Classification to remove references to infant ventilat
48. a voltage divider which is read by the analog to digital converter The X coordinate is determined by applying a voltage from left to right on the bottom resistive layer Again this creates a voltage gradient and the point of contact forms a divider which is read with an analog to digital converter Membrane Panel The membrane panel provides a set of permanent dedicated keys which enable control of ventilator functions The membrane panel also provides visual display using embedded light emitting diodes LEDs The membrane panel consists of membrane switches which are read by the microprocessor The switches form a matrix of rows and columns key closure causes an interrupt to the microprocessor which responds by scanning the key matrix to determine which key has been pressed Light Emitting Diodes LED Some of the membrane keys require LED s to indicate when the key is active The LED s are embedded into the membrane panel Optical Encoder The optical encoder is used to modify control settings A setting is selected by pressing a soft key on the touch screen and then modified by turning the optical encoder data dial to change the value When the encoder is rotated two pulse streams are generated phase A and B When the encoder is turned clockwise phase A leads B by 90 degrees When the direction is counter clockwise phase B leads A by 90 degrees The electronics uses the phase information to drive an up down counter which is re
49. ad by the microprocessor The optical encoder is not interrupt driven and therefore must be polled by the microprocessor Back Light Inverter The back light inverter converts 12 VDC into the high frequency AC voltage necessary to power the LCD back light which is used to illuminate the LCD Power System The Power System conditions and controls electrical energy from the AC line input and the internal batteries The Power System supplies 24VDC 8VDC and 5VDC to the Main System PCB When energy is available from the AC line the ventilator operates from this source and also recharges the internal batteries When AC line power is not available the power system draws energy from the internal batteries The power system uses energy efficient DC to DC converter technology to convert energy from the AC line or batteries to appropriate voltages and currents to supply power to ventilator components and systems L2859 101 Rev B 6 Service Manual VELA Ventilator Systems Main System PCB The Main System PCB is comprised of three Pressure Transducers an Analog to Digital Converter two Digital to Analog Converters Solenoid Valves and the Watchdog and Hardware Fault Monitors One of the pressure transducers measures the patient circuit pressure This pressure is an input to the control system differential pressure transducer measures the pressure across the turbine This pressure is also an input to the control system A second differential pr
50. ate of receipt 2 Elastomeric components and other parts or components subject to deterioration over which the Company has no control are warranted for sixty 60 days from date of receipt 3 internal batteries are warranted for ninety 90 days from the date of receipt 4 The turbine only is warranted to be free from defects in material or workmanship for five 5 years or 40 000 hours whichever occurs first The foregoing is in lieu of any warranty expressed or implied including without limitation any warranty of merchantability except as to title and can be amended only in writing by a duly authorized representative of the Company L2859 101 Rev B VELA Ventilator Systems Service Manual Contents FiGVISIOI HISIOTV uuu iii ETT TERT iv Mollege ces et ua AU A AE AME E tm vii EMC NOICE MI MH vii MRINOUCG erani ete Dreier res vii Intended Use Notice vii Regulatory NOtlCe 5 Pix RR vii IEC EIasSITICAD OTI tri ea dvi ta oe ep teo in vii Declaration of Conformity Notice viii salely IntOHriatlotlic ix TEM Warnings 5 date o aun uuu ka M M ix EVELLO x Eq iprient u a aa nia aus daya xi Chapter 1 General InstEHetlofis 535 on aaa
51. atient gas are constructed from compatible plastics plated steel and aluminum There is also an oxygen inlet port which allows for low flow titration of oxygen into the gas output of this device Electronic Overview The VELA ventilator electronic system is comprised of several subsystems each containing numerous components These subsystems are the GUI System the Power System the Main Microprocessor System and the Exhalation and Flow Delivery systems Individual subsystems are discussed in detail User interface module UIM The UIM consists of a 10 4 inch 800x600 active matrix LCD with an analog resistive touch screen overlay a back light inverter a set of membrane key panels an optical encoder and the Main System PCB Software and the touch screen provide a set of context sensitive soft keys The membrane panel provides a set of hard permanent keys for dedicated functions Selecting the function with a soft key and adjusting the setting using the optical encoder changes a parameter A parameter is accepted or canceled by pressing the appropriate membrane key The UIM performs all ventilator control functions gas calculations monitoring and user interface functions The UIM uses a Graphical User Interface GUI via the active matrix SVGA LCD and resistive touch screen to provide system and patient information to the user and to allow the user to modify ventilator settings The Main System PCB handles all user interface requirements
52. ator and select Leak Test 1 Completion of the test takes about 15 seconds 2 Verify test passes 3 Turn ventilator off Note If any test does not pass do not continue with performance test Turn to Chapter 9 Troubleshooting section under UVT Test Tests and follow the troubleshooting guide for the failed test e Disconnect the Leak Test circuit and connect a suitable permanent Patient Test Circuit Do not use disposable circuits for testing purposes using the Siemens test lung P N 33754 to continue the Performance Tests 2 0 Performance Test 1 Ensure that a 50 PSIG Oxygen gas source is connected to the High Pressure inlet assembly on the rear of the VELA Connect the VELA power cord to a properly grounded AC outlet Press and hold the ACCEPT button on front panel as you turn on the ventilator Continue to hold the ACCEPT button until vent boots up completely and you are in the UVT screen Enter the Extended Functions screen and ensure the FiO2 Monitor is ENABLED Select the VENT SETUP button and select the FiO2 Monitor Calibration button Select the Start Ambient Calibration button and ensure the cal is complete and valid this can take up to 3 5 minutes to complete Select the Start 100 Calibration button and ensure the cal is complete and valid this can take up to 3 5 minutes to complete After FiO2 calibration is successful exit the calibration screen exit the extended functions screen
53. d that the batteries be replaced every two years Q How dol know the Monitored Volumes good or bad A Because the monitored values are calculations based on the Delivered volumes you must first determine if the delivered volumes of the ventilator are accurate before you can know if the monitored values are inaccurate Follow the Delivered Volume Test in chapter 7 This will tell you if the delivered volumes are accurate If the delivered volumes are good follow the Monitored Volume Test in chapter 7 to determine accuracy of the monitored values L2859 101 Rev B 56 Service Manual VELA Ventilator Systems Q Why does the O2 Inlet fluctuate so much when my wall pressure is consistent A The VELA ventilator does not have a pressurized accumulator like many ventilators do that add a volume of gas to equal out pressures during higher demands of gas flow With that in mind when the FiO2 settings are set above 21 and a demand by means of a delivered breath is made on the blender the solenoids will servo open and closed On higher FiO2 settings you can see a pressure drop occur on the monitored O2 inlet pressures This is normal and should not be viewed as a problem The blender has 5 solenoids with 5 fixed orifices that can flow as much as 140 Ipm for short periods of time which will drop the inlet system pressure readings dramatically However the pressure does not remain low The pressure will fluctuate with every breath and you
54. dating VELA ventilator the computer screen will display the Download time and status The VELA ventilator will automatically reboot and return to the VELA Splash screen and then the Patient Select screen The alarm will be in the Patient Default alarm mode C Temp Vela Downloader gt vela_downloader exe X2 01 27 mem usb ConsoleDownloader 02 01 02 Waiting to start download Load address ff80040c Start address ff800420 File size is 3436416 bytes Number of bytes downloaded 3436408 CRC 86204765 Download time 8 minutes and 36 second s Download successfully completed C Temp Vela Downloader gt pause Press any key to continue 11 Perform an OVP before using the ventilator on a patient L2859 101 Rev B 26 Service Manual VELA Ventilator Systems Ventilator Upgrade Procedure Note The VELA Ventilator has many modes and functions that can be purchased in addition to the basic configuration the vent is shipped with These options will be available for purchase initially as well as available any time in the future This procedure can only be accomplished after the purchase and sales order number have been verified Technical Support can enable these other features in the ventilator after confirmation of added enhancements L2859 101 Rev B VELA Ventilator Systems Service Manual 27 Chapter 5 One Year P M Procedure Contents of PM kit P N 11416 2ea 03808 Inlet assy O Ring 2
55. e tube listed in figure 6 3 labeled to tube assy S903 Apply 60 cmH 0 of pressure to the transducer Allow pressure to stabilize for 3 4 seconds Press the PRESSURE APPLIED button to confirm the 60 cmH O span calibration 0 6 cmH 0 Verify O K is displayed next to the 60 Select Save Calibration to store settings Reconnect the tubing to the tube assembly connecter Exhalation Flow Transducer Calibration 1 2 oN Oo R 9 Install the flow sensor adaptor to the flow sensor receptacle P N 51000 40078 provided in the Calibration kit From PT802 follow the tube labeled High Pressure side of flow sensor receptacle in figure 6 3 down to the 1 16 tee connecter At the tee connecter turn and follow over to the tubing connecter and disconnect at the larger 1 8 side of the tubing connecter Select XFLOW XDCR on screen Select PRESSURE APPLIED to set the zero pressure reference Verify OK appears next to 0 press Connect test set up 1 as shown in figure 6 0 Connect calibration tubing to the tube listed in figure 6 3 labeled Tube 3 that was disconnected from the tee Apply cmH O of pressure to the transducer Allow pressure to stabilize for 3 4 seconds Press the PRESSURE APPLIED button to confirm the 3 cmH20 span calibration 0 3 cmH20 Verify O K is displayed next to the 3 Select Save Calibration to store settings 10 Reconnect the small tubing to the tee connecter
56. ea 03895 Duckbill check valve 2ea 03897 Delrin washer 2ea 05186 Inlet assy O Ring lea 05528 Umbrella valve 11 4 2ea 06804 O2 inlet filters 1 10365 Muffler filter core assy 2ea 20819 Rear inlet filter 1pk 33801 Fan filter media small 1pk 34058 Fan filter media large lea 21950 Piston inspiratory valve lea 21971 Compression spring 268 30020 Filter end cap O Ring lea 31028 Insp check valve cover O Ring lea 31029 Insp piston O lea 68319 Battery 3V coin cell lea 21013 Inspiratory Valve gasket General Instructions and Warnings WARNING Always disconnect the main power cord before removing the instrument cover and disconnect the battery once the top cover and battery tray have been removed to prevent injury and or damage to the VELA Ventilator System CAUTION The VELA contains ESD susceptible components Ensure you are properly grounded before performing any service or maintenance procedures and store ESD susceptible electrical components in an anti static bag to prevent damage to the component L2859 101 Rev B 28 Service Manual VELA Ventilator Systems Note When the batteries are disconnected the system will automatically re set the battery status memory and will initiate a 24 hour re charge cycle upon re connect During this period the DC status light will remain red for Approximately 2 hours and Amber for 16 18 hours then it will go to green and continue its trickle charge unti
57. elow the transducers Damage may occur to these components if tubing is removed Exhalation Pressure Transducer Calibration 1 Follow the tube connected to the bottom port of solenoid 9904 and disconnect tubing at the larger side 1 8 end of the luer lock connecter See figure 6 3 2 Select EXLPRESS XDCR on screen 3 Select PRESSURE APPLIED to set the zero pressure reference L2859 101 Rev B 40 Noo co Service Manual VELA Ventilator Systems Verify OK appears next to 0 press Connect test set up 1 as shown in figure 6 0 Connect calibration tubing to the tube listed in figure 6 3 labeled to exhalation valve dryer tube S904 Apply 60cmH2O of pressure to the transducer Allow pressure to stabilize for 3 4 seconds Press the PRESSURE APPLIED button to confirm the 60cmH20O span calibration Verify O K is displayed next to the 60 Select Save Calibration to store settings Reconnect the tubing to the luer lock connecter Turbine Pressure Transducer Calibration 1 Ov PR o Follow the tube connected to the bottom of the solenoid 9903 and disconnect the tube at the larger end the 1 8 end of the tube assembly connecter Select TURB PRESS on screen Select PRESSURE APPLIED to set the zero pressure reference Verify OK appears next to 0 press Connect test set up 1 as shown in figure 6 0 Connect calibration tubing to th
58. en as described in Chapter 6 2 Select Touch Screen Calibration 3 Using stylus pen touch all three points as they appear on the screen Verify calibration passed 4 If calibration does not pass repeat calibration process until it does pass 2 5 Battery Status Verification 1 Charge battery to minimum 80 capacity before returning to service 2 Verify voltage capacity Access the SVT mode Access Transducer Data Choose Analog X any one showing will do Rotate the control knob until IB Internal Battery is selected press accept Exit screens and return to the wave form screen In the area just above one of the wave forms that shows what the wave form represents you can touch this and a menu window will appear rotate the control knob until the Analog X that you set IB in is selected then press accept The wave form will now represent a battery capacity You can see this voltage by pressing the freeze button and the voltage value will appear next to the curser line with a green status light this voltage should read above 809 of full charge The charge scale is 1 0 to 4 0 1 0 being 0 charge and 4 0 being Fully charged The formula to find the percent of charge for the VELA internal batteries is 1 0 3x 100 of charge 3 4 1 0 2 4 3 0 8 x 100 80 of full charge capacity If ventilator passes the UVT and Performance Tests the Ventilator is performing to specifications and may be put into service L2859 101 Rev B
59. ential pressure transducer which converts the pressure signal to an electrical signal The microprocessor uses this signal for flow triggering and to monitor exhaled tidal volume The airway pressure transducer reads pressure in the exhalation leg of the patient circuit This signal is used as a feedback signal for controlling PEEP pressure control pressure support and various pressure monitors Periodically the auto zero valves activate to reference the differential and airway pressure transducers to ambient pressure The offset is recorded by the microprocessor and is used as an offset for future pressure measurements This compensates for long term and temperature drift Materials exposed to patient gases include compatible plastics aluminum and stainless steel L2859 101 Rev B 4 Service Manual VELA Ventilator Systems Safety System The mechanical safety system ensures that the patient can breath spontaneously from room air and that the patient pressure is limited to a maximum preset value in the event of a ventilator malfunction This mechanical system consists of a pressure relief valve and a sub ambient relief valve In the event of a ventilator malfunction that results in high pressure the pressure is limited by a relief valve The relief valve consists of a user adjustable spring loaded poppet acting against a seat In the event the ventilator fails to deliver a breath the patient may inspire spontaneously by drawing room air throug
60. essure transducer is used to measure the flow at the outlet of the exhalation valve This pressure is also an input to the control system Analog to digital converters are used to change the analog pressure signals into measured binary numeric values for use by the microprocessor Digital to Analog converters are used to change the binary numeric commands generated by the microprocessor in the control system into analog signals which drive the turbine and exhalation valve The microprocessor also performs several repetitive tasks such as generating the refresh signals for the display system cycling the A to D converters through a pattern of measurements from the multiple signal sources and scanning the control panel for pressed buttons Solenoid Valves and Valve Drivers including the Auto Zero valves are employed on the Circuit Pressure transducer and on the Turbine Differential Pressure Transducer These valves allow the control systems software to compensate for long term drift and temperature induced zero shift in the pressure transducers by periodically rechecking the zero pressure readings Similar solenoid valves are employed in the Oxygen Blending System The valve drivers for the Auto Zero and Blender valves are similar The Main System PCB controls all ventilator functions All user settings for alarms controls ventilation mode waveform and monitoried data are stored here and are combined with measured pressure flow and speed data t
61. fore of the control voltage from the D to A converter The speed of rotation is monitored by the optical Speed Transducer The transducer outputs a train of pulses with a frequency proportional to the rotational speed of the motor This pulse train is a control feedback input to the microprocessor L2859 101 Rev B VELA Ventilator Systems Service Manual 7 Oxygen Blending System The electrical portion of the oxygen blending system is made up of a safety solenoid a pressure regulator set to 40 PSI an O2 Inlet Transducer five Solenoid Valves one Nebulizer solenoid and the driver circuitry for the solenoid valves The Oxygen Blender Pressure Transducer measures the system gas pressure after the regulator so that O2 delivery can be compensated for inlet pressure fluctuations The Solenoid Valves are energized and deenergized under software control by the Main System microprocessor to supply the correct amount of oxygen to satisfy the current O2 setting and current gas flow demand The driver circuitry translates the binary logic signals presented by the microprocessor to larger voltage and currents suitable for energizing the Solenoid Valves L2859 101 Rev B Service Manual VELA Ventilator Systems This page was intentionally left blank L2859 101 Rev B VELA Ventilator Systems Service Manual 9 Chapter 3 Disassembly and Assembly General Instructions and Warnings When performing the procedures in this chapter refer to the VEL
62. gram shown in Appendix B and the appropriate schematics and assembly drawings for each assembly The illustrations shown in this manual are for reference only current revisions of these diagrams and schematics are available to qualified personnel from Cardinal Health Respiratory Technologies Technical Support Always take standard ESD precautions when working on VELA ventilator systems Ensure the ventilator is disconnected from the AC power supply before performing and repairs or maintenance When you remove any of the ventilator covers or panels immediately disconnect the internal battery Molex connector see figure 3 0 before working on the ventilator Recommended Tools amp Equipment Note Before using any test equipment electronic or pneumatic for calibration procedures the accuracy of the instruments must be verified by a testing laboratory The laboratory master test instruments must be traceable to the NIST National Institute of Standards Technology or equivalent When variances exist between the indicated and actual values the calibration curves provided for each instrument by the testing laboratory must be used to establish the actual correct values This certification procedure should be performed at least once every six months More frequent certification may be required based on usage Long amp short Philips screwdrivers Flat bladed screwdriver 1 8 ID Tubing tee P N 0035
63. h the sub ambient relief valve Materials exposed to patient gas are aluminum compatible rubber and compatible plastics Inspiratory Hold Valve The inspiratory hold valve is an electromechanical solenoid valve If activated the inspiratory hold valve blocks flow between the flow delivery system and the patient This valve is activate during inspiratory hold and maximum inspiratory pressure maneuvers Materials exposed to patient gases are aluminum and compatible rubber and plastic Oxygen Blending System The oxygen blending system is made up of an C2 inlet transducer an O2 inlet pressure regulator seven solenoid valves five flow orifices one nebulizer orifice an inlet filter and an accumulator When a breath is initiated the turbine draws mixed gas from the accumulator Filtered air is drawn into the accumulator through the filter Oxygen is supplied to the accumulator through the solenoids and orifices The microprocessor opens and closes the valves as required to supply the correct amount of oxygen to satisfy the O2 setting and the flow demand The signal from the O2 inlet pressure transducer is used to compensate delivered O2 for O2 inlet pressure variations The blender can be used to supply nebulized flow at 100 oxygen safety solenoid is used to shut off the flow of oxygen when the ventilator is turned off or has gone inoperative The O2 inlet pressure regulator helps minimize variations in the oxygen supply Surfaces exposed to p
64. he back of the connecter on these leads and with the unit connected to AC you should see a slight increase of voltage taking place over time If you disconnect the AC plug while unit is running on a test lung you will see the battery voltage maintain a very stable reading Q How do determine if the batteries are good A Refer to the Battery Performance Test in chapter 7 Using the same set up as mentioned above with voltage meter probes connected to the back of the Molex connecter and ventilator connected to and running with a test lung connected Check the battery voltage during step 7 The voltage should decrease very slowly during this test If you detect a very rapid discharge occurring and the batteries are very hot to the touch the batteries have lost their capacity and should be replaced Q How often do need to change the batteries The Nickel Metal Hydride batteries have a life expectancy of 300 to 500 full discharges however this is a difficult life expectancy to quantify in an amount of time as few customers will often discharge the batteries fully The life of a battery will depend largely on the exercise of the batteries regularly It is a good practice to run the ventilator on battery power for 2 4 hours on a regular interval to ensure discharge and recharge This could be done once or twice a month if vent is in constant use The battery care is a very important aspect of preventative maintenance It is however recommende
65. his test does not pass do not continue with performance test Turn to Chapter 9 Troubleshooting section under Delivered Volume Test and follow the troubleshooting guide for the failed test 2 2 Monitored Volume Test Note Perform this test only after the Delivered Volume Test has been completed and the results are acceptable with tolerances provided Set Ventilator parameters as follows Mode Volume Assist Control Volume 500 ml Peak Flow 60 Ipm Breath Rate 12 bpm PEEP 5 cmH20 Adjust all other controls and alarm limits out of range of operation to either OFF or min max settings for alarms 1 Allow ventilator to operate at these settings for one minute L2859 101 Rev B 46 Service Manual VELA Ventilator Systems 2 Check ventilator monitors for the following results Minute Volume 6L 1 2L Tidal Volume 500 ml 100 ml Ratio 1 6 3 10 Breath Rate 12 bpm 2 bpm PIP Equal to manometer 5 cmH2O PEEP 5 cmH20 2 cmH20 Inspiratory Time 1 15 sec 0 5 sec Note If this test does not pass do not continue with performance test Turn to Chapter 9 Troubleshooting section under Monitored Volume Test and follow the troubleshooting guide for the failed test 2 3 FiO2 Performance Test Note Perform this test only after the Delivered Volume Test has been completed and the results are acceptable with tolerances provided 1 o NO PF I Ensure that a 5
66. intentionally left blank VELA Ventilator Systems L2859 101 Rev B VELA Ventilator Systems Service Manual 23 Chapter 4 Software Download Procedure Software Download Follow the instructions below to load new software into the VELATM ventilator If you need assistance contact a Cardinal Health representative 1 Make sure the VELA Ventilator is powered OFF 2 Assemble the adaptor P N 16392 9 pin female connector to Ethernet cable adaptor and Ethernet cable P N 70693 3 Connect the 9 pin end of the adaptor P N 16392 to the 9 pin serial communication port connector of the computer being used to download the new software If a serial communication port is not available on your computer a USB to 9 pin serial adaptor is required to connect to P N 16392 4 Connect one end of the Ethernet cable P N 70693 to the RJ 45 jack on the back panel of the VELA Ventilator RJ 45 jack 5 Ensure the other end of the Ethernet cable P N 70693 is connected to the 9 pin adaptor P N 16392 6 If you have the VELA Software Update CD p n 63663 insert the CD into the computer CD drive and proceed to step 9 otherwise acquire the VELA software update files from the Cardinal Health FTP site and proceed to the next step 7 After downloading the VELA software update files from the Cardinal Health FTP site use My Computer or Windows Explorer to navigate to the location where the files are stored on the computer There are three files requi
67. ion Remove optional from the first sentence of Oxygen Blending System 65 Removed the Caution statements regarding non operational ports L2859 101 Rev B iV Service Manual VELA Ventilator Systems Warranty THE VELA ventilator systems are warranted to be free from defects in material and workmanship and to meet the published specifications for two 2 years or 8 000 hours whichever occurs first The turbine only is warranted to be free from defects in material or workmanship for five 5 years or 40 000 hours whichever occurs first The liability of Cardinal Health referred to as the Company under this warranty is limited to replacing repairing or issuing credit at the discretion of the Company for parts that become defective or fail to meet published specifications during the warranty period the Company will not be liable under this warranty unless A the Company is promptly notified in writing by Buyer upon discovery of defects or failure to meet published specifications B the defective unit or part is returned to the Company transportation charges prepaid by Buyer C the defective unit or part is received by the Company for adjustment no later than four weeks following the last day of the warranty period and D the Company s examination of such unit or part shall disclose to its satisfaction that such defects or failures have not been caused by misuse neglect improper in
68. it was disconnected from L2859 101 Rev B VELA Ventilator Systems Service Manual 41 O2 Pressure Transducer Calibration Apply 50 PSI to the high pressure O2 inlet on the rear of the ventilator Select O2 PRESS you should hear the gas flow from the front nebulizer port now turn gas pressure off and disconnect the high pressure gas hose from the high pressure inlet on the rear of the ventilator Select Pressure Applied to set a zero pressure reference Verify OK appears next to 0 press Connect test setup 2 as shown in figure 6 1 to the front panel nebulizer port and regulate oxygen to 50 PSIG 0 5 PSIG Select Nebulizer button on right front panel to allow gas to reach the blender internal transducer Allow pressure to stabilize for 3 4 seconds Press the PRESSURE APPLIED button to confirm the 50 PSIG span calibration Verify is displayed next to the 50 press Select Save Calibration to store settings Turn off gas supply and disconnect the test setup Exhalation Valve Characterization 1 co Inm Reconnect the battery tray at this time Manual pressure relief should be set to maximum position fully clockwise Select Exhale Valve on screen Connect 30 reusable circuit tubing P N 09531 from the vent output to the exhalation valve body port Select Start calibration This process will take 4 6 minutes Verify calibration passed Note Before calibrating the FIO2
69. l and the power PCB Lay the panel flat and make the following disconnections o On the Power PCBA disconnect the 26 pin ribbon cable at J1 On the Power PCBA disconnect the 2 wire brown black connector at J7 On the Power PCBA disconnect the 3 wire connector at J2 On the Power PCBA disconnect the 10 wire connector at J6 On the Power PCBA disconnect the 2 wire red black connector at J300 10 On the Power PCBA disconnect the 2 wire black white connector at P1 L amp P1 N 11 On the Power PCBA disconnect the ground wire green yellow spade connector Installation Reconnect cables and follow removal process in reverse order L2859 101 Rev B VELA Ventilator Systems Service Manual 13 Front Panel P N 16345A S N AHT07499 amp Below Note For further details on ordering the replacement front panels and Main PCB see Appendix B VELA Diamond Main PCBA PIN 52300A 3 Volt Coin Cell Battery CR2032 68319 Front Panel Mounting Holes J19 J12 J18 J15 Figure 3 5 Front Panel Assembly Removal Remove the power cable top cover battery tray right panel and left panel From the Power PCBA side Rt side of the vent remove the following cables and tubing On the Main PCBA disconnect the 50 pin ribbon cable at JP1 On the Main PCBA disconnect the Insp Hold Solenoid cable at J14 On the Main PCBA disconnect the Power to Main ribbon cable at J17 On the Main PCBA disconnect the Power to
70. l complete If the charge cycle does not follow this sequence please contact Cardinal Health technical support for further assistance Note The terms left and right refer to a view from the front of the unit looking towards the rear Note All personnel performing preventive maintenance and product repair must be trained and certified by Cardinal Health to service the product Required Tools Philips screwdrivers Flat tip screwdrivers Needle nosed pliers 34 Open end wrench L2859 101 Rev B VELA Ventilator Systems Service Manual 29 Procedure Battery Duration Test Below is a procedure that will identify batteries that need to be replaced as well as reset the Battery Charger Controller This test procedure will take approximately one hour to complete The following settings should be used for this test Control Control Setting Alarm Alarm Setting Breath Pressure A C Low Ve 0 1 Mode Rate 80 bpm High Rate OFF Insp Pres 75 cmH2O Low Ppeak OFF Insp 0 5 sec High Ppeak 120 Time PEEP 5 cmH2O Apnea Interval 60 Flow OFF Trigger O2 21 Battery Check Procedure 1 The vent should be connected to a properly grounded AC source for at least 24 hours prior to executing this procedure 2 Install a patient circuit and test lung on the VELA 3 Connect the VELA to a properly grounded AC source Turn on power to the unit 4 Set the VELA to the settings
71. le items The drawings diagrams and schematics included in this manual are for reference only and may be updated separately from this manual after publication For current revisions of all documentation contact Cardinal Health Respiratory Technologies Technical Support at the numbers provided in Appendix A L2859 101 Rev B VELA Ventilator Systems Service Manual 3 Chapter 2 Theory of Operation General Device Description The VELA Ventilator uses a revolutionary turbine gas delivery system with sophisticated microprocessor control Its Graphical User Interface provides support for pediatric to adult patients The VELA can deliver clinically advanced modes of ventilation like Pressure Support APRV NPPV and PRVC and can be powered with an internal battery or AC power for a more extensive patient range Pneumatic System Overview The VELA ventilator pneumatic system is electromechanical and comprises four major subsystems each containing several components These systems are the flow delivery system the exhalation system the safety system and the inspiratory hold valve Individual subsystems are discussed in detail below Flow Delivery System This electromechanical system controls all inspiratory flow to the patient The system delivers flow to satisfy criteria for many breath types including volume controlled pressure controlled pressure supported APRV NPPV and PRVC The system comprises a turbine differential pressure transd
72. ls at the analog output connector 1 Airway Pressure Paw Range 60 to 140 cmH20 Scale 1 cmH20 25 mV Accuracy 50 mV or 5 of reading whichever is greater Zero Offset 1 5 VDC at 0 cmH O 2 Flow Inspiratory Expiratory When selected the ventilator provides a continuous analog voltage representative of inspiratory flow minus expiratory flow Range 100 to 200 LPM Adult Scale Factor 1LPM 10mV Adult 1LPM 25mV Pediatric 1LPM 50mV Neonate Accuracy 10 of reading or 30 mV whichever is greater Zero Offset 3 0 VDC at 0 LPM Machine When selected the ventilator provides a continuous analog voltage representative of machine delivered flow Range 0to200LPM Adult Scale Factor 25 mV Adult 1LPM 50mV Pediatric 1LPM 100 mV Neonate Accuracy 10 of reading or 30 mV whichever is greater Zero Offset None L2859 101 Rev B VELA Ventilator Systems Service Manual 65 3 Volume Range 1 00to4 00L Adult Scale Factor 1L V Adult 1mL 5mV Pediatric 1mL 10mV Neonate Accuracy 10 of reading or 30 mV whichever is greater Zero Offset 1 000 VDC 4 Breath Phase The ventilator provides a continuous analog voltage representative of breath phase Inspiration 5 VDC Expiration 0 VDO Digital Communication The ventilator is constructed with one RS 232 port for bi directional communication of data CAUTION This is a non operational port Do not make connection
73. ltitude setting and adjust to current location 2 Recalibrate the Turbine Differential and Exhalation Pressure Transducer 3 Check the Turbine filters and replace if necessary P N 10365 4 Remove turbine and return to Cardinal Health Service Center for Re characterization or replace Turbine P N 16349 Monitored Volume Test Troubleshooting Problem Possible Cause Action Monitored volumes are out of the 20 specification Altitude setting is not accurate for location Patient Circuit leaks Flow Sensor is inaccurate Flow Sensor receptacle is leaking Flow Sensor receptacle internal tubing is kinked or damaged Exhalation Flow Transducer has drifted over time Check altitude setting and adjust to current location 2 Correct leaking Patient circuit 3 Replace Flow Sensor 4 Sensor receptacle o rings may be damaged inspect and replace as needed P N 30025 5 Inspect and correct tube routing or kinks causing restricted flow 6 Re calibrate Exhalation Flow Transducer VELA Ventilator Systems L2859 101 Rev B VELA Ventilator Systems Service Manual FiO2 Performance Test Troubleshooting Problem Possible Cause Action FiO2 Monitor window only reads and will not monitor 02 1 The FiO2 Monitor is not Enabled O2 cell has drifted out of cal range The O2 cellis faulty Enable FiO2 monitor i
74. m the rear panel using a 3 4 wrench noting that the high pressure fitting is located above the low pressure fitting On the Blender PCBA disconnect the 12 wire connector at J301 Remove the bottom strip ambient air inlet filter by pinching and pulling it out Remove 3 Phillips pan head screws on the right side of the rear panel Use needle nosed pliers to disconnect the oxygen diffuser tube as you remove the blender assembly Oo Installation Follow removal process in reverse order Note When the blender is replaced or re installed new screws will be required These 3 screws p n 53002 56206 will be included with all blender assemblies The screws can be ordered separately L2859 101 Rev B 18 Service Manual VELA Ventilator Systems Turbine and Muffler Assembly P N 16350 Turbine reorder P N 163494 Turbine Assy PIN 16349 WiTurbine Interface PCBA Turbine driver PCBA PIN 71597A Turbine Muffler Assy PIN 10364 Turbine Base Gasket P N 20754 Figure 3 10 Turbine and Muffler Assembly Removal 1 Afterthe Blender assy has been removed 2 Disconnect the Main Wire Harness connector at P2 on the Turbine Driver PCBA 3 Remove the five 5 mounting screws securing the turbine muffler assy 4 Disconnect the Turbine Encoder Cable from the Main PCBA at J6 5 Liftoutthe turbine assy carefully Installation Follow removal process in reverse order Inlet Filter Screen P N 21575 Mounting Screw
75. n Tests or while operating the ventilator the ventilator must be removed from use and referred to qualified personnel for servicing Using an inoperative ventilator may result in patient injury When a low gas supply alarm occurs the oxygen concentration delivered to the patient will differ from that set on the O2 control setting e Asource gas failure will change the FIO2 and may result in patient injury e functioning of this equipment may be adversely affected by the operation of other equipment nearby such as high frequency surgical diathermy equipment defibrillators short wave therapy equipment walkie talkies or cellular phones Donot block or restrict the Oxygen bleed port located on the instrument back panel Equipment malfunction may result L2859 101 Rev B Cautions Service Manual VELA Ventilator Systems Electric shock hazard Do not remove any of the ventilator covers or panels Refer all servicing to an authorized Cardinal Health Respiratory Technologies service technician A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation Upon loss of protective ground all conductive parts including knobs and controls that may appear to be insulated can render an electric shock To avoid electrical shock plug the power cord into a properly wired receptacle use only the power cord supplied with the ventilator and make sure the power cord is in good
76. n Vent setup screen See chapter 6 Re calibrate FiO2 monitor see Chapter 6 Replace O2 cell P N 16101 Check O2 Cal alarm occurs after 5 minutes of operation O2 cell has drifted out of cal range The O2 cell is faulty The delivered Oxygen Blender O2 output is 696 out of range Re calibrate FiO2 monitor see Chapter 6 Replace O2 cell P N 16101 Re calibrate the O2 blender 02 Range Error alarm occurs after 5 minutes of operation The delivered Oxygen Blender O2 output is 8 out of range Re calibrate the O2 blender Battery Performance Test Troubleshooting Problem Possible Cause Action Ventilator does not pass the battery performance test Battery capacity has diminished and cannot hold a charge Replace the batteries P N 21542 Ventilator DC status light shows green light but does not run on batteries for more than a short time 1 Batteries are not holding charge Battery charge monitor lost its memory 2 Check batteries for capacity level Chapter 9 Q amp A Reset Battery Charge Circuit See Chapter 7 Step 2 4 Ventilator DC status light shows green light when AC is disconnected it runs for short time but gets a Battery Low message and it can be cleared by pressing reset only to return within minutes vent runs for hours Battery Charge Monitor lost it s memory
77. n the VELA cover Slide cover towards the rear of the machine and lift off as shown in figure 7 Figure 5 6 Slide cover off towards the rear Remove the 4 screws securing the battery tray amp lift it and the attached large capacitor assembly out Lean the battery tray and capacitor assembly against the left side of the VELA while you disconnect the large white Molex DC power connector shown in figure 8 Set the complete assembly aside Figure 5 7 Battery Disconnect Molex Connector Note When the batteries are disconnected the system will automatically re set the Battery Charge Controller and will initiate an 28 hour re charge cycle upon re connection During this period the DC status light will remain red for approximately 2 hours and amber for 16 18 hours then it will go to green and continue it s trickle charge until complete If the charge cycle does not follow this sequence please contact Cardinal Health tech support for further assistance Remove the right panel There are two screws securing the panel from the upper right back of the ventilator one in the front top and three on the bottom edge of the panel Pull the panel out from the rear first then ease it towards the back amp tilt out Lay the assembly flat The Mufflers are now accessible L2859 101 Rev B VELA Ventilator Systems Service Manual 33 Replacing the muffler filter assemblies To remove amp replace the muffler filter Assemblies P N 10365 fir
78. o cause the ventilator to function The algorithms formulae and control functions which define ventilator behavior are contained in the software program executed by the microprocessor The Watchdog Circuit and Hardware Fault The Watchdog circuit requires the microprocessor to periodically send a signal If the signal is not received by the Watchdog Circuit then the ventilator will be shut down When the Watchdog shuts down the CPU it forces the ventilator hardware to a safe state The Hardware Fault Monitors check the status of the power supplies to the ventilator electornics If any is out of the safe operationg range the ventilator will shut down and cannot be made to operate until the fault is corrected Exhalation System The electrical portion of the exhalation system is comprised of the Exhalation Valve Driver Circuitry The driver converts the low voltage signal output by a D to A converter into a controlled constant current which energizes the linear solenoid positioner in the exhalation valve Flow Delivery System The electrical portion of the flow delivery system is comprised of a 3 Phase Brushless Motor Driver and an Optical Speed Transducer The 3 Phase Brushless DC Motor Driver converts the low voltage signal output by a D to A converter into three controlled currents which energize the three motor phases and cause the motor to create a torque resulting in motor rotation The torque generated is a function of current and there
79. or bottled with 0 50 psig regulator attached To pressure manometer 0 60 psig Figure 6 1 Calibration setup 2 L2859 101 Rev B 38 Service Manual VELA Ventilator Systems Calibration and Test Kit Note Before calibrating the internal transducers run the performance test to confirm that calibration is required If the ventilator passes the performance tests calibration is not necessary Power Up Service Verification Tests 1 Remove the top cover and battery tray 2 Locate DIP Switch pack at SW900 on top right of the Main PCBA 3 Place switch 1 in on position and power vent on See Figure 6 2 TTT SW900 Figure 6 2 DIP Switch Pack as pictured on PCB L2859 101 Rev B VELA Ventilator Systems Service Manual 39 Boromelic Press Exhol Press Turbine Diff Exhol Flow O 5 o 3 cmH20 pressure input cal point To Exhalation Valve dryer tube Tube 2 Tube 3 To Tube Assy To Turbine Figure 6 3 Transducer configurations as mounted on main PCB Gas pressure release for calibration 1 Select Solenoids on SVT Test Screen 2 Select 02 0 it will read ON exit screen Screen Calibration 1 Select Touch Screen Calibration 2 Usinga stylus pen touch all three points as they appear on the screen Verify calibration passed 3 If calibration does not pass repeat calibration process until it does pass CAUTION Do not remove tubing from the transducers or the solenoids mounted b
80. out the solenoid Remove the O ring from the base mount and replace with new P N 31028 O ring Lift out the spring and check valve assembly and discard Je Figure 5 14 Inspiratory Hold Solenoid P N 10346 Install the O ring P N 31029 on the new inspiratory piston P N 21950 Install the 1 1 4 Umbrella valve P N 05528 into the bottom of the piston using a pair of needle nose pliers to gently pull it through the hole in the piston Install the silicone rubber washer P N 21013 inside the piston and feed the nipple of the Umbrella valve through the center of the silicone washer Use a pair of needle nose pliers and after you have fed the nipple through the center of the washer grasp the nipple and lightly pull on it until the washer can be placed at the base of the piston Place the inspiratory check valve in the base manifold cavity centering it Place the spring P N 21971 into the center of the check valve P N 21950 Slip the solenoid over the spring using the guide in the base of the solenoid and seat into place Figure 5 15 Inspiratory piston valve P N 21950 L2859 101 Rev B 36 Service Manual VELA Ventilator Systems Replacing the 3 volt coin battery on the Video PCB 53 200 gae U 207000 pra D t 0 3 Volt coin Cell Battery P N 68319 VELA Diamond Main Figure 5 16 Main PCB W 3 volt coin cell location 1 Remove the front panel assembly and lay flat on level surface 2 Remove 3 volt Coin
81. played Q Why does the circuit hum between breaths A This is an annoyance and not a critical issue The inspiratory hold check valve is vibrating This is more prevalent in disposable circuits as the sound resonates through the thin tubing noticeably louder The check valve can be repositioned by turning the inspiratory piston 1 4 turn How find the hours of operation on this vent A Enter the Extended Functions screen and select the Date amp Time button You will find Turbine and Machine hours both listed Q Why dol have event messages in my event log stating INVALID SERIAL NUMBER Due to the redesign of the main pcb from S N AHT07500 forward the S N is stored on the small peripheral pcb mounted on the rear panel When the battery tray is removed for maintenance or just to move it and you disconnect the communications cable mounted to the battery tray this message will appear when you power up the ventilator with the cable disconnected L2859 101 Rev B 58 Service Manual This page was intentionally left blank VELA Ventilator Systems L2859 101 Rev B VELA Ventilator Systems Service Manual 59 Chapter 10 Maintenance and Cleaning Cleaning amp Sterilization The VELA is designed for easy maintenance All exposed parts of the ventilator are corrosion resistant To prevent pooling of liquids there are no flat surfaces on the ventilator body CAUTION DO NOT submerge the ventilator or
82. r Website Our first run of Cold Fire processors worked well but unfortunately certain components used on this PCB were no longer manufactured in a similar package and so we had to redesign the PCB completely During this time also other capabilities were required for the growth of the VELA Ventilator series and these new features were then introduced into the new design With the release of Cold Fire 2 there was a need to change the P N s of the Front Panel and the Main PCB s which is evident in the Disassembly reassembly section of this manual We have a limited amount of the Cold Fire 1 Front Panels P N 16345A amp J available When these are no longer available kit P N 82850K Main PCB will replace them This kit will include the Turbine EEPROM as the existing EEPROM on the Cold Fire 1 Turbines are not forward compatible with the Cold Fire 2 processor When ordering the kit the S N of the ventilator and the turbine will need to be provided The factory will then reprogram the new turbine EEPROM with the stored characteristics from the original turbine file L2859 101 Rev B 70 Service Manual This page was intentionally left blank VELA Ventilator Systems L2859 101 Rev B VELA Ventilator Systems Service Manual Appendix C Schematics amp Diagrams gt gt EE Unam 15890 PART OF 16559 16357 PART OF 16559 PART OF 6559 A 115951 PART OF 16559 7042
83. red for the VELA software update It is important that these three files be in the same folder on the computer VELA Downloader exe Start VELA Download bat VELA XX XX XX mem where XX XX XX represents the Version of the VELA software L2859 101 Rev B 24 8 Service Manual Double click the file Start VELA Download bat A window similar to the one shown below opens C WINDOWS system32 cmd exe C Temp Vela Downloader gt vela_downloader exe VELA_X2_01_27 mem usb ConsoleDownloader 02 01 02 Waiting to start download Power ON the VELA ventilator The following messages will be added to the screen Load address Start address File size bytes VELA Ventilator Systems The VELA ventilator then erases the old application software Once this is completed the ventilator starts receiving and loading the new application software This will take approximately 8 9 minutes Note The alarm sounds continuously during this time L2859 101 Rev B VELA Ventilator Systems Service Manual 25 While the application is downloading the Ventilator screen and the computer screen display continuous dots similar to the window shown below BEE C Temp Vela Downloader gt vela_downloader exe VELA_X2_01_27 mem usb ConsoleDownloader 02 01 02 Waiting to start download Load address ff80040c Start address ff800420 File size is 3436416 bytes When the application is finished up
84. shown above 5 Record the start time of the test 6 Unplug the vent from the AC source so the vent is now operating on battery 7 Run the vent for one hour Any battery alarms should be ignored at this point 8 If the vent does not run for an entire hour then turn the power switch off the test is complete The batteries should be replaced If the vent is still running then proceed L2859 101 Rev B 30 Service Manual VELA Ventilator Systems Note Cardinal Health recommends that customers perform a Battery Performance Verification Test annually and change the batteries on the VELA at least every two years Batteries should be changed sooner if deemed necessary in the performance verification testing 9 If during the one hour test period there were alarms and alert messages the Battery Charge circuit will need to be reset During the P M procedure this will be done when the batteries are disconnected The Battery Charge Controller will be reset when the batteries are disconnected and then reconnected 10 Turn off the VELA power switch and unplug from the AC source Replacing the ambient air filter The Ambient Air Filter P N 20819 is a high density foam insert and is located at the rear of the ventilator below the rear panel it can be accessed by removing seven screws holding the perforated aluminum cover To remove it pinch and pull it out of the aluminum cover The filter will lift out Replace with a clean filter
85. st pull out the two silicone elbows from the muffler assembly end cap P N 20714 Figure 5 8 Turbine muffler W Elbows Remove the 6 screws on the end cap Remove and replace the two black o rings P N 30020 on the end cap Figure 5 9 Muffler W end cap removed Using needle nose pliers firmly grasp the metal grid inside the R side muffler housing assy Pull and remove the filter Repeat with the left side muffler Figure 5 10 Removing the Filter Assembly L2859 101 Rev B 34 Service Manual VELA Ventilator Systems You will see that only the Right side muffler has a filter attached the L side is a muffler only Figure 5 11 Filter assembly To install the new muffler filter assemblies P N 10365 push the left side muffler with no filter firmly in and make sure it is pushed all the way into the housing Insert the right side muffler with the filter ensure that the seam on the filter is horizontal as you install and press home Replace the Muffler housing end cap with the new O rings and secure with Six screws Figure 5 12 Muffler removal Install the two silicone elbows into the muffler cover and push in the center to make sure they are seated Figure 5 13 Installing silicone elbows L2859 101 Rev B VELA Ventilator Systems Service Manual 35 Replacing the Inspiratory Check Valve 1 2 Remove the inspiratory hold solenoid cable J302 from the Main PCB assy Remove 2 Phillips pan head screws and lift
86. stallation unauthorized repair alteration or accident Any authorization of the Company for repair or alteration by the Buyer must be in writing to prevent voiding the warranty In no event shall the Company be liable to the Buyer for loss of profits loss of use consequential damage or damages of any kind based upon a claim for breach of warranty other than the purchase price of any defective product covered hereunder The Company warranties as herein and above set forth shall not be enlarged diminished or affected by and no obligation or liability shall arise or grow out of the rendering of technical advice or service by the Company or its agents in connection with the Buyer s order of the products furnished hereunder Limitation of Liabilities This warranty does not cover normal maintenance such as cleaning adjustment or lubrication and updating of equipment parts This warranty shall be void and shall not apply if the equipment is used with accessories or parts not manufactured by the Company or authorized for use in writing by the Company or if the equipment is not maintained in accordance with the prescribed schedule of maintenance The warranty stated above shall extend for a period of TWO 2 years from date of shipment or 8 000 hours of use whichever occurs first with the following exceptions 1 Components for monitoring physical variables such as temperature pressure or flow warranted for ninety 90 days from d
87. tic English Overlay P N 16688 0A VELA Basic Front Panel Used for International ICON Overlay P N 16688 1A VELA Plus Front Panel Used for International ICON Overlay P N 16687 2A VELA Comprehensive Front Panel Used for International ICON Overlay L2859 101 Rev B VELA Ventilator Systems Service Manual 15 Main PCB P N 52300A S N AHT07499 amp Below Main PCB P N 52850A S N AHT07500 amp Above J10 Flow sensor Receptacle 1 4 Mounting Nuts J11 Mounting Holes for VELA Diamond Main PCBA 7ea Figure 3 6 Main PCB Assembly Removal After removal of the Front Panel Assy follow the steps below 1 Onthe Main PCBA disconnect Soft key control panel flat cable at J10 On the Main PCBA disconnect Touch Screen flat cable at J9 On the Main PCBA disconnect the LCD 20 pin connecter at J2 center of PCB On the Main PCBA disconnect the Backlight Inverter cable at J4 center of PCB Remove the seven 7 mounting screws securing the Main PCBA to the LCD Panel Remove the two 2 nuts securing the Flow Sensor Receptacle Carefully lift the Main PCBA and disconnect the Optic Encoder cable at J11 Note If you are not replacing the Main PCBA and you have removed it to access other components do not remove the Pneumatic tubing 0 A c In If you are replacing the Main PCBA carefully replace each tube one at a time to ensure proper connection points Installation Install Main PCBA and follow removal process in reverse order
88. tilator Systems Sterilization The following accessory parts may be sterilized e exhalation valve body exhalation flow sensor e The exhalation diaphragm Method of Sterilization The preferred method of sterilization is Steam Sterilization autoclave minimum 132 C 270 F maximum temperature 134 C 273 F It is recommended that the accessories listed above be replaced after 30 cleaning and sterilization cycles 1 After cleaning the surfaces make sure all excess cleaning solution is completely removed to prevent residue buildup 2 Sterilize the exhalation valve body flow sensor and diaphragm using steam autoclaving within the guidelines stated above 3 Using a low flow gas source less than 10 L min ensure the differential pressure tubes are free of moisture and debris 4 Toavoid possible damage to elastomeric components the peak temperature for Cardinal Health accessories should not exceed 275 F 135 for steam autoclave 5 Ultrasonic cleaning is not recommended Liquid sterilizing agents containing more than 296 glutaraldehyde are also not recommended If such agents must be used be sure to thoroughly rinse and dry the assembly to prevent residue buildup Residue buildup in the differential pressure ports can cause inaccurate pressure and volume readings 6 Prior to replacing the exhalation valve diaphragm inspect it for excessive wear If signs of damage are found obtain a new diaphragm
89. ture Humidity Minimum Flow Inlet Fitting 40 to 85 psig Supply Oxygen 10 to 40 50 to 1049 F Dew Point of gas should be 1 79 C 35 F below the ambient temperature minimum 80 LPM at 20 psig CGA DISS type body No 1240 Low Pressure Connector Pressure Range Maximum Flow Inlet Fitting 0 to 0 5 psig 80 LPM 1 4 inch tapered Electrical Supply AC Power Supply Supply Oxygen The ventilator operates within specification when connected to the following AC power supplies Nominal 100 VAC 120 VAC 230 VAC 240 VAC DC Power Supply Voltage Range 85 to 110 VAC 102 to 132 VAC 196 TO 253 VAC 204 TO 264 VAC Frequency Range 47 to 65 Hz 55 to 65 Hz 47 to 65 Hz 47 to 65 Hz The ventilator can also operate from a 48 VDC power source internal battery Internal Battery The ventilator operates within specification for approximately 6 hours with a fresh fully charged battery under moderate load Maximum charge time for a full charge is 8 to 12 hours L2859 101 Rev B 64 Service Manual VELA Ventilator Systems Data Input Output Analog Inputs The ventilator provides up to 8 programmable channels for analog signal inputs Each channel shall be scalable for the input ranges specified Ranges 0to 1 VDC 0 to 5 VDC 0 to 10 VDC Resolution 0 25 mV for 0 to 1 VDC 1 37 mV for 0 to 5 VDC 2 5mV for 0 to 10 VDC Analog Outputs The ventilator provides 4 signa
90. ucer 2 auto zero valves and an optical encoder speed transducer When breath is initiated the microprocessor controls the speed of the turbine to achieve the required flow rate The speed and differential pressure transducer signals function as control inputs to ensure that the proper flow rate is delivered even when backpressure varies Periodically the auto zero valves activate to reference both sides of the differential pressure transducer to ambient pressure The offset is recorded by the microprocessor and is used as a correction for future pressure measurements This compensates for long term and temperature drift Materials exposed to patient gases include compatible plastics aluminum and plated steel Exhalation System The exhalation system controls the flow of gas from the patient s lungs during the exhalation phase of a breath This electromechanical subsystem is made up of an exhalation valve a flow transducer a differential pressure transducer an airway pressure transducer and three auto zero solenoid valves During exhalation the outflow of gases is regulated by the exhalation valve to achieve the set PEEP The exhalation valve is comprised of an electromagnetic linear actuator operating against a mechanical poppet seat The gas flow travels through the flow transducer The flow transducer is a variable orifice type and creates a differential pressure proportional to flow This differential pressure is transmitted to the differ
91. ut from the O2 cell monitor is greater than 1 or less than the Check O2 Cal table then an adjustment to the algorithm is made to make up the difference in setting versus monitored value This comparison is accomplished three times and an adjustment will be made to the algorithm each time if necessary for a total of approximately 4 7 minutes At this time the processor will open the closed loop of operation and the blender will operate with the last adjusted algorithm If the FiO2 setting or the altitude setting is changed the whole process will start over These alarms will present themselves only after the closed loop of operation has finished its 4 7 minutes and the specified alarm criteria are met The Check O2 alarm will appear if the monitored O2 is outside the specified range of the set FiO2 continuously for 20 seconds L2859 101 Rev B VELA Ventilator Systems Service Manual 57 Specified ranges for Check O2 Cal alarm Medium Alarm Yellow O2 setting 21 60 6 O2 O2 setting 61 80 7 2 O2 setting 81 100 8 2 Specified ranges for O2 Range Error alarm High priority alarm Red O2 setting 21 60 10 O2 O2 setting 61 80 11 02 O2 setting 81 100 12 O2 Q Why dol get a Filter message A This is a reminder to check the rear inlet fan filter and will appear every 500 hours of operation The reset can be completed by pressing the reset button twice while the alert message is dis
92. ventilator yearly Call the applicable number given in Appendix A to arrange for a qualified service technician to perform this WARNING Electric shock hazard Do not remove any of the ventilator covers or panels Refer all servicing to an authorized Cardinal Health service technician The one year maintenance includes the following Kit P N 11416 consists of the Replacement of e Rear Air Inlet Filter e The Oxygen Inlet Filter e Turbine Muffler Filter Cores and O rings Fan Filter Video volt coin cell At this time the following maintenance is performed e Removal amp replacement of the above items e Calibration if required e Verification Testing to confirm the ventilator is functioning within optimum parameters Note VELA Maintenance should only be performed by a trained and authorized service technician Cardinal Health will make available to qualified technicians service manuals which include such items as circuit diagrams component parts lists calibration instructions and other information to assist in repair of those parts of the ventilator designated by the manufacturer as repairable items L2859 101 Rev B 62 Service Manual This page was intentionally left blank VELA Ventilator Systems L2859 101 Rev B VELA Ventilator Systems Service Manual 63 Chapter 11 Specifications Oxygen Supply High Pressure Connector Pressure Range Tempera
93. ype of Equipment Medical Equipment Class 1 type B Adult Pediatric Lung Ventilator L2859 101 Rev B viii Service Manual VELA Ventilator Systems Declaration of Conformity Notice This medical equipment complies with the Medical Device Directive 93 42 EEC and the following Technical Standards to which Conformity is declared EN60601 1 0086 EN60601 1 2 ISO 13485 2003 EU Notified Body BSI Reg No 0086 Trade names VELA If you have a question regarding the Declaration of Conformity for this product please contact Cardinal Health Respiratory Technologies at the number given in Appendix A L2859 101 Rev B VELA Ventilator Systems Service Manual ix Safety Information Please review the following safety information prior to operating the ventilator Attempting to operate the ventilator without fully understanding its features and functions may result in unsafe operating conditions Warnings and Cautions which are general to the use of the ventilator under all circumstances are included in this section Some Warnings and Cautions are also inserted within the manual where they are most meaningful Notes are also located throughout the manual to provide additional information related to specific features If you have a question regarding the installation set up operation or maintenance of the ventilator contact VASYS Healthcare Customer Care as shown in Appendix A Contact amp Ordering Information Terms WARNING

Cardinal-Health-VELA-Ventilator-Service-Manual

Contents

Download Pdf Manuals

Related Search

Related Contents