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Vent

201

Service Manual

Part No. SM-01-04 Rev. 5 Revised February 2006

0473

Summary of Contents for iVent201

Page 1: ...iVent201 Service Manual Part No SM 01 04 Rev 5 Revised February 2006 2006 VersaMed 0473...

Page 2: ...r any direct or indirect loss or damage caused by omissions from or inaccuracies in this document VersaMed reserves the right to change details in this publication without notice Adaptive Flow and Ada...

Page 3: ...r problem that you cannot solve and you purchased your ventilator from an authorized VersaMed distributor please contact your distributor directly to report the problem NOTE If this ventilator has not...

Page 4: ......

Page 5: ...3 3 Important Safety Considerations 25 1 4 Labels and Symbols 26 1 4 1 Symbols 26 1 4 2 Labels 27 Section 2 System Specifications 31 2 1 Specifications 31 2 1 1 Ventilation Modes 31 2 1 2 Ventilation...

Page 6: ...39 3 3 Oxygen Supply 39 3 3 1 High Pressure Supply 39 3 3 2 Low Pressure Oxygen Supply 40 3 4 Patient Circuit 41 3 4 1 Patient Circuit Connection 43 3 5 Filters 44 3 5 1 Air Inlet Filter 44 3 5 1 1 Lo...

Page 7: ...g Fan 57 4 1 6 Patient Circuit 57 4 1 6 1 Wye and Flow Sensor 57 4 1 6 2 Exhalation Valve 57 4 1 6 3 One way Valve 58 4 2 Electronic Module 59 4 2 1 Computer 61 4 2 1 1 System Memory 61 4 2 1 2 BIOS 6...

Page 8: ...4 2 4 2 RF Filter Block 69 4 2 4 3 Protective Devices 69 4 2 4 4 Battery Charger Block 70 4 2 4 5 5V Output DC DC Converter 70 4 2 4 6 Power On Off Switching 70 4 2 4 7 Status Block 70 4 2 4 8 Motor D...

Page 9: ...Enter Calibration Menu 81 5 4 5 2 Zero Sensors 82 5 4 5 3 Pressure Sensors 82 5 4 5 4 PEEP RPM 83 5 4 5 5 Flow Sensor 84 5 4 5 6 Volume 85 5 4 5 7 O2 System 85 5 4 5 8 Save New Calibration 86 Section...

Page 10: ...ose 98 6 3 2 Scope 98 6 3 3 Tools Equipment 98 6 3 4 Initialization 99 6 3 5 Procedure 100 6 3 5 1 O2 Delivery and Linearity 100 6 3 5 2 100 O2 Suction Test 101 6 3 5 3 Safety Alarms Test 102 6 3 5 3...

Page 11: ...ls Equipment 114 7 4 3 2 Enclosure Disassembly 115 7 4 3 3 Enclosure Assembly 117 7 4 4 Electronic Module Removal and Installation 118 7 4 4 1 Tools Equipment 118 7 4 4 2 Electronic Module Removal 118...

Page 12: ...llation 133 7 4 5 6 Switching Board Removal and Installation 133 7 4 5 6 1 Tools Equipment 133 7 4 5 6 2 Switching Board Removal 133 7 4 5 6 3 Switching Board Installation 135 7 4 6 Pneumatic Unit Rem...

Page 13: ...2 Diagnostics and Repairs 154 8 2 1 Power Switch 154 8 2 2 Demand Valve 156 8 2 3 Pressure Switch 157 8 2 4 Valve Limit Switch O2 Microswitch 158 8 2 5 Flow Sensor Leak 160 8 2 5 1 Root Cause Pneumat...

Page 14: ...he Ventilator for Static Pressure 172 Appendix A Parts and Accessories 175 Appendix B Service Report Form 177 Appendix C Technician Tool Utility Software 181 C 1 Purpose 181 C 2 Scope 181 C 3 Tools Eq...

Page 15: ...C 4 10 SetUp Button 189 Appendix D Wiring and Cables 191 Index 195...

Page 16: ...umatic Unit Overview 51 Figure 4 3 Electronic Module 59 Figure 4 4 Ventilator Overview 60 Figure 5 1 Cooling Vent left and Cooling Air Inlet Filter right 77 Figure 5 2 Entering the Maintenance Menu 81...

Page 17: ...Disconnect Alarm 104 Figure 6 21 Sensor Disconnect Alarm 105 Figure 7 1 RS 232 Cable to iVent201 108 Figure 7 2 Upgrade iVent201 Software Screen 108 Figure 7 3 Upgrade iVent201 PC Application Screens...

Page 18: ...157 Figure 8 3 PU Main Connector Front View Pressure Switch Pinout 158 Figure 8 4 O2 Mixer Top View 159 Figure 8 5 Main Connector Front View Microswitch Pinout 160 Figure 8 6 Pneumatic Sensors Connec...

Page 19: ...Figure D 1 iVent201 Wiring Diagram Page 1 193 Figure D 2 iVent201 Wiring Diagram Page 2 194...

Page 20: ...Parameters and Indicators During Ventilation 34 Table 3 1 Internal Battery Charge Level Indicator 39 Table 5 1 Cleaning and Routine Maintenance 75 Table 5 2 Preventive Maintenance Schedule 76 Table 8...

Page 21: ...not binding If any significant difference is found between the product and this document please contact VersaMed for further information VersaMed reserves the right to modify the product without amend...

Page 22: ...nical ventilation as prescribed by an attending physician The iVent201 features advanced software electronic and mechanical technologies which along with easy operation provide effective and reliable...

Page 23: ...SpO2 Probe Connector Optional Power Switch High Pressure O2 Connector AC Power Cord Figure 1 2 The iVent201 rear view 1 3 Safety Information In accord with the important information herein always com...

Page 24: ...2 12 Medical Electrical Equipment Part 2 12 Particular requirements for the safety of lung ventilators Critical care ventilators UL 94 HB Flammability 1 3 2 Technician Safety 1 3 2 1 Hazard Notices Be...

Page 25: ...year according to the instructions in this Service Manual The stated battery backup time approximately 60 minutes can be guaranteed only if it is used according to the instructions provided in the Op...

Page 26: ...ventilator Symbol Definition Refer to documentation for further information Potential equalization Ground Point Direct Current DC and Alternating Current AC Dangerous voltage Type BF equipment Defibri...

Page 27: ...Connector AC Fuses Air Inlet Cooling Fan Vent Connector DC Fuse Device ID Device Product S N IV1813 Model iVent201 IC AC IN 100 240V 50 60Hz 1 6A 2xT3 15AL 250V INLET AIR FILTER DO NOT OBSTRUCT COOLI...

Page 28: ...lay Connector OR High Pressure Oxygen Inlet Keyboard Connector OR Power Pack Fuse Power Switch Remote Alarm Connector Serial Communication Connector OR EXT SCREEN OXYGEN INLET 40 60 psi 2 8 4 2 bar Us...

Page 29: ...e Pulse Oximetry Probe connector optional not on all units VersaMed Caution This Power Pack contains a sealed Lead Acid Battery Disposal of this unit should be according to Environmental Safety Requir...

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Page 31: ...ilation Performance and Controlled Parameters Respiratory Rate 1 to 12 1 bpm 12 to 50 2 bpm Tidal Volume 100 to 2000 mL Accuracy of Tidal Volume Delivery from the set value 10 or 10 mL whichever is gr...

Page 32: ...er Supply External AC 100 to 240 V 50 60 Hz max 1 6 A External DC 12 to 15 V max 8 5 A Internal Battery Sealed Lead Acid 12V 7 2 9 Ah rechargeable Recharge Time 8 to 10 hours Operating Time internal b...

Page 33: ...0E Total External Sound Level 40 45 dB A at one meter 2 2 Standards and Safety Requirements The iVent201 meets or exceeds the following international standards ISO 10651 2 Particular requirements for...

Page 34: ...e cmH2O Oxygen Concentration FiO2 L Inspiration to Expiration time ratio I E I E Inspiratory Time I Time sec M A Peak Inspiratory Flow VPeak L min V V V M A Flow Termination VPeak Term Trigger Sensiti...

Page 35: ...Off Low Mid High Purge Interval Minutes 1 2 5 10 Off 2 5 User Adjustable Alarms Respiratory Rate bpm High 4 80 Low 1 77 Minute Volume L min High 1 99 Off Low 0 60 Inspiratory Pressure cmH2O High 4 80...

Page 36: ...y Check Sensor Empty Battery High PEEP Battery Disconnect Service Notice Over Temperature Need Cal Sensor Disconnect Auto Start Patient Circuit Failed 2 6 2 Indicators and Icons Power Source Breath Ty...

Page 37: ...r inlets Once the ventilator is in operation icons located at the bottom of the screen indicate the use of an external power source When connected to AC power the 3 prong AC plug symbol is displayed W...

Page 38: ...ge level The ventilator automatically switches to the internal battery when an electrical power failure is detected CAUTION The iVent201 must be used at all times with a properly functioning battery i...

Page 39: ...ion of indicator moves across in 10 increments Red Clear Changes to red when the measurement is less than 30 Clear Displays EMPTYwhen the measurement is less than 7 3 3 Oxygen Supply 3 3 1 High Pressu...

Page 40: ...an oxygen concentrator or flow meter This is accomplished by using an optional low pressure oxygen enrichment system that is attached to the ventilator air inlet port through an optional VersaMed ada...

Page 41: ...inadvertent PEEP NOTE When using the low pressure oxygen system None may also be selected This option will disable both the internal O2 monitoring and alarms The FiO2 field will display 0 3 4 Patient...

Page 42: ...imb Figure 3 4 Patient Circuit The ventilator circuit is intended for single patient use only and consists entirely of disposable components A Heat and Moisture Exchanger HME should be used and placed...

Page 43: ...ion of water into the ventilator or circuit valves WARNING An HME or HME filter must not be used with active humidification Substitute the HME with a bacterial filter only CAUTION Do not clean or re u...

Page 44: ...a bacterial filter should be placed between the inspiratory limb of the patient circuit and the ventilator outlet 3 5 Filters The iVent201 utilizes the following filters see Figure 3 6 A protective fi...

Page 45: ...nt of environmental contamination by hazardous or toxic compounds the air inlet filter may be removed and replaced with a CBRN Chemical Biological Radiological Nuclear filter P N 620B0012 01 or anothe...

Page 46: ...46 VersaMed iVent201 Service Manual Figure 3 6 iVent201 Filters CBRN Filter Air Inlet Filter Low Pressure O2 Adapter Bacterial Filter at Ventilator Outlet HME Filter at Patient Wye...

Page 47: ...a 2 minute countdown timer is activated and temporarily replaces the date time field at the bottom right area of the display Additionally a bell symbol appears with a black X crossing it out A short p...

Page 48: ...eappears A long press 1 second clears all inactive green alarm messages at the bottom left of the display This key also aborts the last operator action and returns to the previous position It is simil...

Page 49: ...the following modules Pneumatic Unit Electronic Module LCD Display Interface Board Power Pack Assembly 4 1 Pneumatic Unit The pneumatic unit provides the mechanics for ventilation and it is the heart...

Page 50: ...Inlet O2 Inlet O2 Sensor O2 Pressure Switch Main PU Connector Outlet Muffler Figure 4 1 Pneumatic Unit The diagram on the following page shows the basic pneumatic components and their relative positi...

Page 51: ...Issued 23 Feb 06 51 Figure 4 2 Pneumatic Unit Overview...

Page 52: ...the 12VDC supply and draws 4 amps maximum It has a tachometer for monitoring speed and is supervised by a watchdog circuit A braking function is provided which connects the motor terminals together v...

Page 53: ...ssure at the demand valve outlet is approximately 0 cmH2O or ambient This component is automatically checked during the VVT 4 1 2 3 Proportioning Valve This is a gate type valve that slides between th...

Page 54: ...etects when the O2 valve has reached an extreme end of the usable range It prevents mechanical jamming and prevents the control system from spending time in ineffectual ranges It is a short travel dou...

Page 55: ...the values to an external O2 analyzer additional tolerance must be added to compensate for the uncertainties presented by the external analyzer The rule of thumb should be an additional 5 This compon...

Page 56: ...ure relief function The safety pressure level is determined by the spring characteristics which are chosen to match the requirement Since each valve can pop off independently there are actually two 2...

Page 57: ...e The flow sensing lines are connected to the ventilator front panel using medical luer fittings one male and one female which are connected to a differential pressure transducer located within the el...

Page 58: ...and holds this PEEP value until something changes the equilibrium usually the next breath cycle This component is automatically checked during the VVT 4 1 6 3 One way Valve This valve is connected bet...

Page 59: ...ectronic module senses monitors and displays the ventilation parameters It also controls interaction between the user and ventilator through the user interface The electronic module consists of the fo...

Page 60: ...0 VersaMed iVent201 Service Manual The following diagram shows how the electronic module components interact with each other and with the other components of the iVent201 Figure 4 4 Ventilator Overvie...

Page 61: ...is not utilized at this time 4 2 1 1 System Memory System memory consists of FPM EDO onboard 8MB SIMM x 1 In addition to the standard locking socket a bracket is used for increased mechanical security...

Page 62: ...om4 available and unused by any other application such as a mouse modem PDA Sync utility or another VersaMed application 4 2 1 5 VGA Display The CPU board supports LCD and CRT displays The LCD display...

Page 63: ...S The operating system is pSOS pSOS stands for plug in Silicon Operating System This real time operating system RTOS later evolved to pSOS It is an optimal environment for embedded systems 4 2 2 Main...

Page 64: ...The voltage is then filtered and amplified for measurement of low flows via a second ADC channel A reference voltage biases the measured voltages so that at zero flow the signal is in the center of th...

Page 65: ...uit whose output is buffered and also used by all analog components requiring precise voltage A 4 channel 8 bit DAC provides bias reference voltages to compensate for the offset voltages in the sensor...

Page 66: ...Lattice PLD activates the solenoids This either opens the switch continuously to open the valve or presents various PWM levels so that a constant voltage keeps the valves open The appropriate PWM lev...

Page 67: ...a VersaMed supplied cable of the desired output type must be used The following output types are available for both configurations of remote alarm NO Normally Open Relay Output switch closure upon al...

Page 68: ...a zeroing board only 4 2 4 Switching Board The switching board is the power conversion and distribution utility board All power functions occur here including external DC power management The switchi...

Page 69: ...s conduct electromagnetic noise on the DC power supplies This provides electromagnetic immunity from external noise inwards and prevents conducted emissions from propagating outwards The filter is an...

Page 70: ...lso provided for the software to recognize inadvertent reset or user activation of the hard switch The 12V output is switched whenever the 5V supply is above a threshold Only the charge circuit is pow...

Page 71: ...alog supply is also provided for the input instrumentation amplifiers in the flow sensor path In addition a digitally controlled voltage source exists for LCD displays which require a voltage of up to...

Page 72: ...and transmits them to the main board The interface board also passes the LED signals from the main board through to the keypad audible alarm buzzer and speaker There are two 2 versions of the interfac...

Page 73: ...y message is activated when the measured battery charge has depleted to a remaining 20 or the battery voltage has depleted to 11 3V An empty battery alarm will activate when the battery voltage deplet...

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Page 75: ...ing inlet filter Cooling Vents Cooling Inlet Filter Replace cooling inlet filter annually or as necessary Air Inlet Filter Replace every 500 hours or 1 month of operation or as necessary Do not attemp...

Page 76: ...Replace the cooling inlet filter Internal Battery Replace internal battery and reinitialize the gas gage Perform full calibration Perform VVT Perform functional tests Annually Perform safety checks E...

Page 77: ...ps should be carried out every 1500 hours or every 3 months 1 Clean the rear cooling vents and the front cooling air inlet using a vacuum device Tilt the ventilator back to access the front cooling ai...

Page 78: ...8mm Phillips head screws and washers from the outlet port mounting ears 6 Remove the existing outlet port and install the replacement port with the 3 screws and washers 7 Assemble the ventilator encl...

Page 79: ...4 4 3 5 Assemble the front enclosure to the rear enclosure as outlined in Section 7 4 3 3 6 Perform a full calibration as outlined in Section 5 4 7 Run the Ventilator Verification Test VVT as outline...

Page 80: ...N 910V0005 01 5 4 4 Initialization 1 From a power off state connect the ventilator to AC power 2 Turn on the ventilator and select the 70 kg patient weight setting in the opening screen 3 Set the pre...

Page 81: ...stating that only trained service personnel should enter the restricted Maintenance area 2 Select Yes and the Maintenance window appears 3 Select the Calibration option and the Calibration window wil...

Page 82: ...nce manometer to the patient circuit Be sure that the manometer tee is capped so that there is no flow out of the unit 2 From the Calibration window select the Calibrate Pressure Sensors option and pr...

Page 83: ...5 Calibrate Pressure Sensors 5 4 5 4 PEEP RPM 1 Connect the test lung to the patient circuit 2 From the Calibration window select the Calibrate PEEP RPM option and press Start 3 Wait until the calibr...

Page 84: ...onnect the test lung from the patient circuit 2 From the Calibration window select the Calibrate Flow Sensor option and press Start 3 Wait until the calibration is finished about 15 seconds The messag...

Page 85: ...final values and then exits automatically NOTE At the end of each cycle both the inhale and exhale volume will update After the 10th count these values should be 500 10 Repeat this calibration step if...

Page 86: ...ate O2 System 5 4 5 8 Save New Calibration 1 From the Calibration window press Close 2 Press YES to save the new calibration factors or NO to discard the calibration and retain the previous values CAU...

Page 87: ...Issued 23 Feb 06 87 Figure 5 10 Save Calibration...

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Page 89: ...1 Version 1 4 ventilators manufactured by VersaMed Medical Systems Inc and loaded with software version 19 11 or higher This procedure should be performed after attaching a new patient circuit to the...

Page 90: ...rn to the Standby screen NOTE If the ventilator fails to pass the O V T verify that both caps are pushed onto their respective ports all the way Also verify that the flow sensor and exhalation valve c...

Page 91: ...ems Inc and loaded with software version 19 11 or higher This procedure should be performed after any repair calibration upgrade preventive maintenance or shipment 6 2 3 Tools Equipment O2 supply 40 6...

Page 92: ...Battery status Motor watchdog safety device PC watchdog safety device 6 2 5 1 Alarm Sound Tests 1 From the Main Menu select the Maintenance option A Caution window appears stating that only trained se...

Page 93: ...if the first alarm tone is audible NOTE The volume of the first alarm is adjustable in the Alarm Settings Options menu The default value is 8 5 Press Continue if there is an audible tone or Failed if...

Page 94: ...items will continue to accumulate throughout the rest of the test TIP If a calibration manometer is available and is known to be free from leaks block the patient circuit with it instead and compare t...

Page 95: ...he VVT Instruction window will appear Figure 6 7 Flow Tests Figure 6 7 Flow Tests 6 2 5 4 O2 Tests 1 Verify that there is no O2 supply connected to the ventilator and press OK 2 Wait until the test st...

Page 96: ...the AC power cable from the ventilator and verify that the amber charge LED is off and the AC plug icon is crossed out 2 Press OK and wait until the test step is finished about 20 seconds The VVT Ins...

Page 97: ...to finish about 1 minute During this time the ventilator will restart The System Message window will appear stating that the Ventilator verification tests were completed successfully or a Warning win...

Page 98: ...on Test Procedure The Functional Verification Test is a series of operational simulations designed to qualify all of the critical functions of the ventilator 6 3 1 Purpose This procedure verifies vent...

Page 99: ...he O2 analyzer and connect its O2 sensor to the ventilator outlet port and the patient circuit to the O2 sensor 3 Connect the Rp20 resistor and test lung to the patient circuit wye 4 Turn on the venti...

Page 100: ...selecting Alarm Settings from the Main Menu you can view the O2 value that the ventilator is currently measuring This number is in blue and located to the left of the min max alarm bar Note If no cur...

Page 101: ...ld 2 Verify that the FiO2 delivery elevates to 100 nominal Figure 6 16 100 O2 Suction Mode 3 During the first 2 minutes detach the test lung and Rp20 resistor and verify that the audible alarm sounds...

Page 102: ...s Test The Safety alarms test checks the following High pressure Apnea Tube disconnect Patient disconnect Sensor disconnect 6 3 5 3 1 High Pressure Alarm 1 Enter the Alarm Settings window from the Mai...

Page 103: ...e the pop up window then select the blinking APNEA and answer Yes to restore the previous mode Figure 6 18 Apnea Alarm 4 After another 20 to 25 seconds the unit will go back into APNEA alarm Simulate...

Page 104: ...t Alarm 3 Connect the patient circuit to the ventilator outlet port and verify that the alarm automatically recovers 6 3 5 3 4 Patient Disconnect Alarm 1 Disconnect the test lung and Rp20 resistor fro...

Page 105: ...lower left from the ventilator front panel 2 Verify that a The audible alarm sounds continuously b A red pop up Warnings window appears stating Sensor disconnect c There is a red Sens disc indicator...

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Page 107: ...770 2850 7 1 Software Upgrade Procedure 7 1 1 Purpose The purpose of this procedure is to provide clear instruction for the upgrade of the ventilator to a new software version 7 1 2 Scope This proced...

Page 108: ...SERVICE SCREEN option 6 Select the UPGRADE SOFTWARE VERSION option Figure 7 1 RS 232 Cable to iVent201 Figure 7 2 Upgrade iVent201 Software Screen 7 Double click on the file named install exe on the P...

Page 109: ...en while simultaneously the loaded percentage increases incrementally on the ventilator screen 11 At the end of the software installation the ventilator reboots automatically After restart the message...

Page 110: ...file name either events log or error log The files must be renamed after they are successfully downloaded from the ventilator onto the PC s hard drive in order to ensure that subsequent downloads can...

Page 111: ...om left of the application window If it does not check the RS 232 connection and cable You may also be required to select the appropriate COM port com1 to com4 from the Com menu 4 Type error log or ev...

Page 112: ...contains all of the software needed to run under any configuration as long as the hardware is present By manually entering a key code that is unique to each unit different ventilator features can be...

Page 113: ...Typically less than half of the characters will need to be changed and quite possibly only one may require changing 6 Using the rotational control knob highlight and select the first character of the...

Page 114: ...sassembly and reassembly For instance if you go through all of the disassembly procedures in the order presented the entire ventilator will have been disassembled down to any replaceable component If...

Page 115: ...he inside of the front enclosure Be sure to note where they were connected See Figure 7 7 page 116 7 Disconnect the ribbon cable from the interface PC board located in the middle of the front enclosur...

Page 116: ...nector and cable Top Screws 2 Bottom Screws 2 Figure 7 6 Enclosure Rear View 1 LCD Connector Inverter Cable Ground Wire Ribbon Cable Connector Sensor Line Fittings Interface Board LCD Cable Ground Poi...

Page 117: ...e down onto the studs protruding from the LCD shield 4 Thread the 2 4mm lock nuts onto the studs While pressing down on the center of the bracket tighten both lock nuts 5 Attach the green LCD ground w...

Page 118: ...the rear enclosure and assembly the seam around the entire perimeter of the unit should be closed and even If it is not then there is interference from the tubes and or cables that were just connected...

Page 119: ...it by pressing in the side clips of the connector and pulling it out 8 Disconnect the power pack connector from the bottom right of the electronic module EM 9 Remove the 2 4mm x 8mm screws and lock wa...

Page 120: ...the screws at this time 3 Install the 2 3mm x 8mm Phillips head screws to the rear of the enclosure see Figure 7 9 page 119 4 Tighten the rear and front mounting screws of the electronic unit 5 Facin...

Page 121: ...he electronic module as outlined in Section 7 4 4 2 Electronic Module Removal page 118 b Remove the 4 4 Phillips flat head screws from the top of the electronic module see Figure 7 11 c Remove the 2 4...

Page 122: ...s 7 Hinged Cover Screws 2 Figure 7 11 EM Cover Screw Locations Figure 7 12 EM Sensor Tubing Cover Screw Locations 7 4 5 1 3 Electronic Module Cover Installation 1 Raise the right side hinged cover of...

Page 123: ...ectronic Module Installation page 120 7 4 5 2 Zeroing Purge Board Removal and Installation 7 4 5 2 1 Tools Equipment Screwdriver Phillips 1 7 4 5 2 2 Zeroing Purge Board Removal 1 Remove the electroni...

Page 124: ...ffs see Figure 7 13 2 Connect the short tubing from the left port of Zeroing Solenoid KP1 to the lower port of the flow transducer U58 3 Connect the short tubing from the left port of Zeroing Solenoid...

Page 125: ...Main Board Removal and Installation 7 4 5 3 1 Tools Equipment Screwdriver Phillips 1 Nutdriver 5mm 7 4 5 3 2 Main Board Removal 1 Remove the zeroing purge board as outlined in Section 7 4 5 2 2 2 Rem...

Page 126: ...oard 5 Squeeze the release latches and disconnect the connectors from J2 and J3 6 Disconnect the connectors from JP1 J8 J9 and J10 7 Open up the handled latches and disconnect the ribbon cable assembl...

Page 127: ...6 Sensing Tube PCB Mounting Screws 3 Standoffs 3 Power Switch Harness Remote Alarm Connector Adapter DIP Switch Rotary Switch Connector J10 Connector J2 Connector J3 Connector JP1 Connector JP4 Connec...

Page 128: ...and J10 NOTE The cable to J8 has white w red stripe and white w yellow stripe wires while the cable to J9 has 1 red wire and 2 black wires 6 Connect the hanging cables into J2 and J3 Press down until...

Page 129: ...will be located right next to the RS 232 port Refer to Section 7 4 5 6 2 step 6 page 133 for the technique to remove the connector 4 Use the wire cutters to cut the cable tie at the position shown in...

Page 130: ...130 VersaMed iVent201 Service Manual Figure 7 16 CPU Board Nylon Screws 3 Standoffs 2 Cable Connector Standoffs Connector CN2 Connector Power Connector LCD Cable Tie Disk on Chip...

Page 131: ...e and 2 pin beeper cable is secured to the EM chassis 8 Connect the white 4 pin connector at the PCB connector marked POWER NOTE On some older units the power connector may be a 6 pin hooked connector...

Page 132: ...Supply heat sink a Temporarily turn the Power Supply 90 clockwise and remove the 2 3mm flathead screws from the locations shown CAUTION Although these 2 screws look almost identical to the chassis scr...

Page 133: ...6 page 123 7 4 5 6 Switching Board Removal and Installation 7 4 5 6 1 Tools Equipment Screwdriver Phillips 1 7 4 5 6 2 Switching Board Removal 1 Remove the Electronic Module cover as outlined in Secti...

Page 134: ...d screws w captive washer from the PC Board see Figure 7 19 Figure 7 18 EM with Side Cover Lowered to Show Switching Board Connector J1 Connector J3 Connector J2 Connector J4 Connector J10 Connector J...

Page 135: ...and press it straight down see Figure 7 18 3 Connect the 18 position connector to J11 of the PCB 4 Connect the 4 position connector to J4 of the PCB Note The center wire is colored white with a green...

Page 136: ...d in Enclosure Disassembly Section 7 4 3 2 page 115 2 Remove the electronic module as outlined in Electronic Module Removal Section 7 4 4 2 page 118 3 Remove the air inlet filter from the side of the...

Page 137: ...und wire assembly from the dual tabs located just above the outlet port 10 Pull the pneumatic unit straight out of the rear enclosure Figure 7 20 Rear Enclosure Inside View 3 7 4 6 3 Pneumatic Unit In...

Page 138: ...en ground wire and tab between the front left leg of pneumatic unit and the mounting plate 5 Tilt the rear enclosure back onto the power pack handle in order gain convenient access to the underside of...

Page 139: ...O2 pressure switch type and connect the corresponding connector s a Silver colored metal switch which is threaded directly onto the O2 inlet pipe Route the cable assembly coming out of the back of th...

Page 140: ...lined in Section 7 4 3 3 Enclosure Assembly page 117 7 4 7 LCD Assembly Removal and Installation 7 4 7 1 Tools and Equipment Screwdriver Phillips 1 Pliers needle nosed 7 4 7 2 LCD Assembly Removal 1 D...

Page 141: ...LCD screen A glass cleaner works well for this purpose 4 Place the LCD shield and screen on top of the black LCD mask so that the shield cutout is facing right and the LCD screen is facing down 5 Plu...

Page 142: ...nclosure from the rear enclosure as outlined in Section 7 4 3 2 Enclosure Disassembly page 115 2 Remove the 2 3mm x 8mm Phillips head screws and 4mm washers located on each end of the PC Board 3 Disco...

Page 143: ...e View 3 7 4 8 3 Interface Board Installation 1 Route the front keypad 2 pin flex cable assembly under the interface board and plug it into the mating connector 2 Slide the interface board into the ve...

Page 144: ...nting threads of the encoder 3 Radially orient the rotational control knob so that the indent of the knob is 180 from the flat part of the encoder shaft and push it on 7 Assemble the front enclosure t...

Page 145: ...negative terminal CAUTION Reversing the polarity of the wires will destroy the battery gas gauge located within the power pack 2 Slide the battery into the casing Be sure that the red and black wires...

Page 146: ...t need to be detached for this service 2 Disconnect the tube from the top of the outlet port to provide clearance 3 Disconnect the gray cable from the top of the existing O2 sensor 4 Remove the existi...

Page 147: ...lung 2L Versamed P N 910V0005 01 Pneumatic resistor Rp20 Versamed P N 910V0004 A0 7 5 4 Procedure 1 Plug the AC power cord into the ventilator verify that the amber charge LED comes on and allow the...

Page 148: ...e measured during this time by monitoring the time from AC disconnect to the empty battery alarm These events and their respective time stamps can be reviewed by selecting Show Log Book from the Main...

Page 149: ...dic maintenance schedule is current and follows the guidelines outlined in Section 5 of this Service Manual and Section 8 of the Operators Manual 3 All external tubing cables and connections are prope...

Page 150: ...Part Unit powers up but does not boot up Green LED lights Defective Electronic Module Replace Electronic Module Call Service for Part Unit powers up but restarts over and over again Defective Electron...

Page 151: ...ervice for Part Unit displays Call Service Battery Disconnect or Battery Damaged error Charge LED lights with AC power cord plugged in Power Pack fuse is blown Replace Power Pack fuse 15A 137A0153 Fai...

Page 152: ...K0003 Cooling fan disconnected or defective connector contact Reconnect cooling fan or repair contact Unit displays temperature error Error Code 304 in technical log Cabling interfering with cooling f...

Page 153: ...or and recalibrate 130B0002 Service Notice Alarm after power up Error Codes 330 333 345 347 359 in technical log Main Pneumatic connector disconnected from Pneumatic Unit Reconnect Main Pneumatic Harn...

Page 154: ...for the particular patient or connecting interface Unit won t pass OVT Flow offset on graph Sensing lines of patient circuit partially contaminated with fluid Replace Patient Circuit 620B0006 Flow of...

Page 155: ...the power switch button cap straight out from the back of the unit 2 Visually check that there is no gray ring gasket present If the gasket is present then remove it 3 Reinstall the button by lining...

Page 156: ...akage NOTE Some demand valves will shut off as soon as manual actuation is lifted While this is normal nevertheless there should be no detectable leakage If the demand valve function is verified but s...

Page 157: ...8 2 O2 Inlet Pipe and Demand Valve 8 2 3 Pressure Switch There are two 2 versions of this component and connecting inlet pipe It is best to call VersaMed service before attempting replacement This com...

Page 158: ...enclosure to the rear assembly as outlined in Section 7 4 3 3 Enclosure Assembly page 117 8 2 4 Valve Limit Switch O2 Microswitch The O2 microswitch is wired for a normally open configuration but is u...

Page 159: ...lly rotate the shaft of the stepper motor so that the microswitch actuator is at a mid position on the cam and verify that the switch is in a closed state 5 Reassemble the front enclosure to the rear...

Page 160: ...ately 50 possible leak points Without a method of leak isolation a single problem can become time consuming and tedious There is usually no audible hiss to help isolate the root cause and visual inspe...

Page 161: ...Issued 23 Feb 06 161 Figure 8 6 Pneumatic Sensors Connections...

Page 162: ...usions 3 Disconnect the two flow sensor lines from the left side of the front panel and repeat the test Patient pressure Solenoid 1 Solenoid 2 and Solenoid safety should fail due to the lack of a pres...

Page 163: ...d along this branch 1 Set up the ventilator and patient circuit as outlined in Section 3 4 1 2 Block the exhalation valve outlet 22mm male 3 Run the first part of the VVT as outlined in Alarm Sound Te...

Page 164: ...t the flow offset 3 If the flow is above the baseline then the leak is along the left side negative port 4 If the flow is below the baseline then the leak is along the right side positive port 8 2 5 5...

Page 165: ...be to the barbed port of the ventilator outlet and then insert the remaining tube over the male luer nipple of the patient circuit exhalation valve control line TIP Since the O2 sensor is not connecte...

Page 166: ...which ultimately dead end and are leak tight Each branch is connected by a Y adapter When the patient pressure branch is occluded the left side pressure bar will rapidly deflate if there is a leak alo...

Page 167: ...aph are exactly the opposite Normally when there is no leak present if you occlude the positive port sensing tube the flow graph trace will go in a positive direction or hug close to the baseline depe...

Page 168: ...d and verified by the certified manometer that was used to calibrate the unit The VersaMed 2 liter test lung P N 910V0005 01 has a consistent compliance of approximately C24 This means that for every...

Page 169: ...re of the first port port creating an artificial lower exhale volume The first set of iVent201 screen captures below Figure 8 11 show the effects of an undersized test lung for the application setting...

Page 170: ...tics of this lung interfere with correct tidal volume measurements The test lung has a built in pneumatic resistor with a value of Rp40 The connector fits into the 15mm F connector of the patient circ...

Page 171: ...gged or one of the three wires or connector contacts is disconnected or broken 8 4 2 Fails Calibrate Flow Sensor The unit fails the calibration step Calibrate Flow Sensor but most of the time it is in...

Page 172: ...section 8 4 5 Low Pressure During Calibration or VVT If during calibration or VVT you observe pressures that are lower than normal the ventilator may be running on battery power Simply plug in the AC...

Page 173: ...lator for 1 minute it will timeout and return to the Main Menu 8 Select Apnea Time and adjust the setting to 120 sec 9 Highlight and select Accept in order to keep these settings The Standby screen ap...

Page 174: ......

Page 175: ...ems only Accessories Part Number Description 660B0001 12 Disposable Breathing Circuit I type box of 12 620B0017 20 Disposable Breathing Circuit Y type box of 20 620B0006 20 Disposable Breathing Circui...

Page 176: ...emote Alarm Interface for central alarm system call for details Normally Closed Phone Jack 507A0054 B0 Remote Alarm Interface for central alarm system call for details Normally Open Phone Jack 507A102...

Page 177: ...al Battery 32Ah 301C0002 01 External Battery Charger 220VAC 301D0001 01 External Battery Case 507A1019 01 External Battery Cable 630B0007 01 External Battery Holder for Roll Stand SM 01 04 iVent201 Se...

Page 178: ...WARRANTY CONTRACT CUSTOMER _________________________ NON WARRANTY BILLABLE IV NUMBER _________________ MACHINE HOURS ___________________ SOFTWARE VERSION _______________ SERVICE TYPE REPAIR UPGRADE PM...

Page 179: ...SS FAIL OVT PASS FAIL ENDURANCE TEST for 2Hrs PASS FAIL VVT TEST PASS FAIL TRIGGERS With PEEP 20 and Max PASS FAIL OXYGEN CHECK 70 100 PASS FAIL BATTERY INDICATION PASS FAIL TECHNICIAN NAME __________...

Page 180: ......

Page 181: ...g Windows 95 OS or higher screen resolution 600 x 800 or higher and a free RS 232 port Com1 to Com4 RS 232 communication cable DB 9 female female null modem C 4 Procedure C 4 1 Software Installation 1...

Page 182: ...Finish button C 4 2 Initial Setup 1 Turn on the PC and connect the RS 232 port of the PC to the RS 232 port of the ventilator using the null modem serial communication cable 2 Connect the AC power to...

Page 183: ...ct Communication Port 8 Use the up down arrows or type in the box to input a PC com port assignment if it is different than the default value of 1 9 Click the OK button to accept the value The softwar...

Page 184: ...Electronic Module The following figure shows the Technician Tool main screen and layout Figure C 4 Main Screen C 4 4 Read All Parameters When the main screen is first entered all of the values are up...

Page 185: ...s the O2 concentration of the gas mixture at the output of the blower This value is then used to adjust the O2 blender to a higher or lower position to match the targeted FiO2 Each millivolt of output...

Page 186: ...below 170 C 4 7 Read Battery LMD The battery LMD stands for Last Measured Discharge and it is a value that corresponds to the last measured amp hour capacity of the battery This value is managed by th...

Page 187: ...es that require the battery gas gauge to be reinitialized or re educated After replacing the battery during an annual PM As a part of the 1500 hr 3 month PM cycle If the gas gauge accumulates too much...

Page 188: ...it will be ghosted and the Please Wait message will appear near the top screen until the new LMD value is updated The button will then display in black characters to show that this parameter was reset...

Page 189: ...box and then click on the SET button The main screen will appear and the Set Machine Serial Number button will be in black characters to show that the serial number has been changed 4 Navigate to the...

Page 190: ......

Page 191: ...3 20 20 Main Board Interface Main 507A0136 A0 Main JP4 20 20 Interface Board Main Interface 507A0136 A0 CPU AIO Power 4 4 Power Switch PC Pwr 507A0150 A0 Switch J5 6 4 PC Power Switch PC Pwr 507A0150...

Page 192: ...511A0030 D0 Switch J8 3 3 Power Switch Switch Power 511A0030 D0 Switch J6 3 2 P S Fan Aux Fan Cable 511A0031 A0 F Panel Speaker 2 2 Speaker Speaker Interface 511A0119 A0 Interface J5 2 2 Speaker Speak...

Page 193: ...Issued 23 Feb 06 193 Figure D 1 iVent201 Wiring Diagram Page 1...

Page 194: ...194 VersaMed iVent201 Service Manual Figure D 2 iVent201 Wiring Diagram Page 2...

Page 195: ...st 102 battery 24 25 32 33 37 38 39 65 66 68 69 70 72 73 76 77 78 144 145 147 148 150 151 172 See also power pack capacity 32 73 charger block 70 charging 38 description 38 disposal 72 gauge 72 73 78...

Page 196: ...67 162 Functional Verification Test 98 105 100 O2 test 100 101 O2 system test 100 safety alarms test 100 102 Heat and Moisture Exchanger HME 42 44 inhale tidal volume accuracy diagnosis 168 interface...

Page 197: ...ressure supply 40 safety 39 40 oxygen blending system 49 52 oxygen concentrator 40 oxygen sensor 52 54 64 replacement 55 patient circuit 35 41 42 43 44 49 57 85 89 90 152 154 caps 89 91 connection 43...

Page 198: ...controller 54 valve limit switch 54 troubleshooting 158 ventilation mode Adaptive Bi Level 31 CPAP 31 pressure controlled 31 PSV 31 SIMV Pctrl 31 SIMV Vctrl 31 volume controlled 31 ventilation paramet...

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Summary of Contents for iVent201

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VersaMed iVent201, Service Manual, Page: 1 / 198

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Summary of Contents for iVent201

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