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Engström Carestation - Frank`s Hospital Workshop

1. poU y germ Malo cone S i i A i Promatic i Ektalton Resistor GX X Flow Sensor Expiratory Zero i Flow P ile i orem m os pes X Flow 1 EXP Pd Preunat edis L Extat Pressure _ i i Inspiratory Pressure P A Inspiratory Zero Valve 02 Sensor zad WELE High Pressure Flow mw Transducer Regulator Sensor vin x haan fes naaa 4 TU A amp oma a gw d ini Check mary Flr Optonat w N m aa nlt rl LL n Reli Valve eo 0 H heck Vaiva E Vv p oc rem x eo z 2 E Auxiliary Pressure bx dicor que FY S P E ov G melt 1 i Inlet Manifold Vent Engine Manifold Outlet Manifold Inlet Inlet Filter Filter 0 OX Optional Standard 0 Regulator Atmosphere 0 Sensor Air Regulator AB 98 116 INSP 9 1505 1018 000 08 07 5 19 Engstr m Carestation 5 2 10 Verify operation of inspiratory effort valve 5 20 Ensure both manual shut off valves are closed Onthe VCB screen e Energize MI the Auxiliary Pressure Purge valve Energize close the inspiratory effort valve M Effort Valve Energized e Verify that the Air Flow Valve 02 Flow Valve and the Exhalation Flow Valve are energized 11 Set the Air DAC 02 DAC and the Exhalation DAC counts to 60 000 Connecta neg
2. Stock Number 1505 8590 000 1505 3061 000 7000 0000 097 7000 0000 186 0309 1319 800 0212 0763 100 0219 5060 530 1006 3530 000 2900 0001 000 1006 3666 000 1605 1001 000 08 07 1505 1018 000 ERROR undefined OFFENDING COMMAND STACK
3. 10 2 08 07 1505 1018 000 10 1 2 Manual shut off valves Item 1 10 1 3 Special tools Item 1505 1018 000 08 07 Tool Manual shut off valve O Manual shut off valve Air 1a O ring 1b Adapter 0 M18 1b Adapter Air M16 1c Valve two way 1d Nipple 1 8 NPTM 1L 05 1d Nipple 1 8 NPTM 1 5 L Air 1e Filter body M18 0 1e Filter body M16 Air 10 Illustrated Parts Stock Number 1505 8578 000 1505 8579 000 1006 3614 000 1505 8576 000 1505 8571 000 0207 6023 300 0213 5025 335 0213 5026 500 1001 5921 000 1001 5923 000 1a 1b 1c 1d 1e i a Description Stock Number Cable Remote Display Unit 2 meters M1063496 For connect DU to EC chassis when disassembled for repair and evaluation Refer to section 9 3 Tool Nebulizer connector Refer to section 10 13 1505 8506 000 Safety Valve alignment tool For early manifolds only 1505 8598 000 Refer to Section 9 3 5 Handle Service EC Air Compressor two required 5370055 Refer to section 9 7 10 3 Engstr m Carestation 10 1 4 Leak test devices Item oO ON DOA RA UOU Nbe a 10 4 Tool Leak test device kit includes items 1 through 10 Syringe 60 cc Clamp tubing Tee 1 8 inch barb Negative low pressure leak test device Tee sensing 22 mm to 15 mm Connector Endo tube Plug 4 mm Plug stopper 2 Silicone tubing 3 16 ID Tubing clear 0 125 ID B
4. 2 5 Engstr m Carestation 2 6 Following the two individual flow valves is the total flow sensor 10 This sensor is the same type as the individual flow sensors and is used to measure the combined inspiratory flow being dispensed from the system Using the known mixture composition along with atmospheric pressure and gas temperature information mass flow data from the sensor is converted to delivered volumetric flow towards the patient During calibration the sensor is checked against the output of the O and Air flow sensors to ensure proper operation le Air 10 Total Flow 08 07 1505 1018 000 1505 1018 000 08 07 2 Theory of Operation Followingthe total flow sensor are the free breathing check valve 11 and the inspiratory effort valve 12 During normal operation the inspiratory effort valve is open allowing the free breathing check valve to admit flow if the patient draws a significant amount of inspiratory pressure causing the airway pressure to become more negative than 0 5 cm H50 The free breathing check valve allows the patient to spontaneously breathe in case of a ventilation delivery failure On occasion to assess the patient s tolerance to be weaned from the ventilator clinicians can determine the amplitude of inspiratory effort that the patient can create During this procedure the inspiratory effort valve is closed effect
5. Inlet Primary Filter Optional Inlet Oz 2 3 Engstr m Carestation 2 4 Downstream from the check valve is a 172 kPa 25 psi pressure regulator 6 The regulator is a non relieving type that does not bleed gas into the ventilator s enclosure The regulator ensures a constant pressure supply to the flow valve 8 The regulated supply is flow rate dependant which is compensated for in the flow valve s on site calibration 8 Fl seus 6 7 M Transducer Flow Regulator Sensor A H High Pressure Flow Transducer Regulator Sensor 25 psi Test 172 kPa Port ike Between the regulator and the flow valves is the inspiratory flow sensor 7 The sensor is a thermal mass flow type that injects heat into the flow stream and monitors the associated temperature rise at a downstream location The temperature change is dependent on the mass flow of the flow stream and the specific heat of the gas moving through the sensor Since the composition of gas in the sensor is known a conversion of mass flow rate to volumetric flow at ambient conditions can be made using the ambient density of the gas The sensor uses a laminar two channel flow element to split a portion of the flow through the sensor past the heat injection and temperature sensing elements The sensor is pre calibrated and includes an electronic PCB that pr
6. Menu Item Trends Setup Message text Configure graphical trend pages Comments Refer to section 4 2 1 Display Settings Set colors units of parameter and time and date Show alarm limits in digit fields Refer to section 4 2 2 Ventilator Settings Configure ventilator settings breath timing flow and modes using backup ventilation Default is Yes Parameter Settings Set volume conditions and C02 humidity compensation Refer to section 4 2 4 Defaults Set or change default settings Refer to section 4 2 5 Calibration Calibrate airway gas calibrate gas valves and test backlights Refer to section 4 3 Service Set and copy configuration and show technical data Note The system will have to be turned off to exit this menu Refer to section 4 4 1505 1018 000 08 07 Turn power off to exit menu 4 3 Engstr m Carestation Message text Values Change default trend type graphical numerical or settings Num default Graph or Set Configure graphical trend pages Pages 1 5 4 2 1 Trends Setup Menu Item Default Trend Graphical Trends Previous Menu Graphical Trends Page Menus Field 1 Off Select Off to clear trend field Field 2 rr co2 respiration rate and CO2 Pres Ppeak Pplat Pmean Pmean PEEP Peepe and Peepi MVexp expired minute volume Spont spontaneous MVexp and respiration rate Compl
7. 08 07 1505 1018 000 Menu Item Save Current Message text Save current settings as facility defaults 4 Installation and Service Menus Comments The default selection is No Common values in the saved defaults are overridden if another ventilation mode is set up and saved Factory Reset Save factory settings as facility defaults The default selection is No If Yes is selected Reset machine for defaults to take effect 1505 1018 000 08 07 Previous Menu Return to previous menu 4 9 Engstr m Carestation 4 2 6 Factory Defaults The following table lists the factory defaults for parameters and alarm limits Setting Adult Pediatric Vent Mode BiLevel BiLevel Neonatal Backup Defaults PCV Fi02 50 50 50 Current FiO2 setting TV 500 100 10 Pinsp 10 cmH20 10 mbar 1 0 kPa 10 hPa 8 mmHg 7 cmH20 7 mbar 0 7 kPa 7 hPa 5 mmHg 5 cm H20 5 mbar 0 5 kPa 5 hPa 3 mmHg 10 cmH20 10 mbar 1 0 kPa 10 hPa 8 mmHg Rate 10 15 25 12 LE 1 2 1 2 1 2 1 2 Tinsp 1 70 1 0 0 4 PEEP Off Off Off Off Psupp 5 cmH20 5 mbar 0 5 kPa 5 hPa 4 mmHg 3 cmH20 3 mbar 0 3 kPa 3 hPa 2 mmHg 0 Pmax 30 cmH20 30 mbar 3 kPa 30 hPa 23 mmHg 30 cmH20 30 mbar 3 kPa 30 hPa 23 mmHg 12 cmH20 12 mbar 1 2 kPa 12 hPa 50 40 cmH20 40 mbar 4 kPa 4
8. Attach the ground strap to the enclosure To install the EMI To fully seal the Display Unit enclosure you will need approximately 2 3 meters of gasket EMC gasket 10 Cut the gasket into five strips shown below Insert a continuous length of gasket in the outside grove of the enclosure sparingly apply Super Glue Gel to the channels near the corners before installing the gasket Insert individual lengths of gasket in the inside grove around the window sparingly apply Super Glue Gel to the channels near the corners before installing the gasket 9 28 etd A es ET et bi ISAR NO T TENA EUM 1206 mm total four sides 08 07 1505 1018 000 9 6 Adjusting the display arm 9 6 1 Adjust upper pivot 1505 1018 000 08 07 9 Repair Procedures The display arm includes three pivot points that allow the Display Unit to be positioned for optimal viewing e the upper pivot allows for tilting the display e the lower pivot allows for raising or lowering the display s the arm mounts to the chassis on a bearing that allows the display to be moved side to side To access the adjustment hardware for the upper and lower hardware remove the pivot arm covers on each side of the pivot The pivot covers are held in place by three tabs in the locations shown by the arrows e Slide a thin blade between the cover and the pivot housing to release each tab Cover To access the adjustment
9. Remove the protective cover from compressor four screws on front panel Openthe drain valve on the receiver if wateris present in the receiver refer to Fault finding and repair section of the JunAirEvair03 TRM Step 7 Figure 3 Checkthe o rings in the non return valve and replace if necessary Part numbers 6243000 and 6242500 referto JunAir EVairO3 TRM Figures 4 and 7 Install filter kit f OF302 1 5SDA 5471001 Filter kit includes the following components Intake filters 2 each 5412400 Refer to JunAir EVair03 TRM Figure 5 s F 5 um filter 2 each 4071230 Refer to JunAir EVair03 TRM Figures 6b and 6c F 0 01 um Filter 1 each 4071240 Referto JunAir EVair 03 TRM Figure 6d F airintake 1 each 6985795 Refer to JunAir EVair03 TRM Page 10 Checkthe condition of internal hoses and connectors Use a soft damp cloth to clean unit by wiping the exterior and interior of the compressor Connect the air pipeline supply if present and mains AC power Powerthe unit On and check for leaks and proper operation 6 5 Engstr m Carestation 6 6 6 3 2 Every 10 000 hours 0 In addition to the 12 month requirements replace the following parts every 10 000 hours All parts should be replaced before performing the checks tests and calibrations 1 Install 10 000 Hour Kit after 10 000 hours of operation Check hour meter P N 5471002 10 000 Hour Kit 230V 50 Hz P N 5471003
10. Use Service App to check temperatures of air and total flow sensors e If inlet air temp is NOT high and if temp from total flow sensor reports more than 9 C higher than the air sensor replace Total Flow Sensor With a air flow of approximately 10 l min verify air and total flows are within 10 of each other Air temp sensor error Air Temperature Sensor Low Failure Out of range air temperature sensor data range is 0 60 degrees C Use total flow temperature for all airflow sensor calculations including alarms If total flow sensor temperature not available use 50 C Check inlet air temperature If comm Failure alarm is also active check harness connections With gas supplies disconnected and system temperature stabilized use Service App to check temperatures of air and total flow sensors Air flow sensor and total flow sensor shall not differ by more than 9 C Replace sensors Backup audio failure Backup Buzzer POST Medium Current to buzzer indicates audio is not sounding This alarm is logged at start up and can be de escalated but cannot be cleared from the screen The primary and backup alarm audio sounds upon every power up of the EC system Check harness connection between PMB On Standby switch Verify buzzer current with voltage measurement at TP15 on VCB If voltage IS NOT present replace PMB If voltage IS present replace
11. the rear enclosure 1 You can transfer the captive screws to the new enclosure However the gasket 2 is held in place with adhesive When replacing the rear enclosure also include a new gasket To replace the remaining items requires further disassembly 9 5 3 CPU Fan CAUTION Do not remove the heatsink from the CPU board 1 Note the orientation of the fan harness Disconnect the fan harness from the CPU board Remove the fan 29 from the CPU heatsink leaving the heatsink in place Remove the heatsink discard from the replacement fan assembly Noting the orientation of the fan harness secure the fan to the CPU heatsink oa A W N Connect the fan harness to the CPU board 1505 1018 000 08 07 9 21 Engstr m Carestation 9 5 4 To replace the CPU board 1 2 Remove the connector panel assembly 21 two screws Disconnect the following cables Inverter harnesses A Right membrane switch flex cable at ZIF zero insertion force connector B e Speaker cable C Encoder assembly cable D Lower membrane switch flex cable at ZIF zero insertion force connector E e Fan cable F e CD cable G Make sure cable is plugged in securely if not screen may display incorrectly white e eft membrane switch flex cable at ZIF zero insertion force connector H 9 22 3 4 5 6 7 Remove the remaining four screws I that hold the CPU board to the mounting plate Remo
12. Battery 30 Internal battery supply 30 minutes Min calculated via battery discharge algorithm On battery On Medium Mains power not available System Battery powered by internal battery for more than 300 ms Normal alarm if system is operating on battery Check connection to AC supply verify green LED on DU is lit e f LED is not lit check AC mains source check rear power cord clamp check fuses e If LED is lit check output of DC power supply at screw terminals Range is 20 32 V If out of range disconnect DC power supply input harness and verify output is still out of range Check replace DC power supply input harness If out of range and harness is OK replace DC power supply Measure voltage at F1 both sides on PMB Range is 20 32V Check replace fuse F1 on PMB Replace PMB Pair sensor out of Air Supply Pressure Low Out of range Air supply pressure sensor range Sensor Out of Range data Range is 195 to 4760 mV Check Air supply Disconnect sensor and verify output is zero gage pressure Interchange harness connections on both supply pressure sensors If alarm follows the sensor check sensor connector terminals Replace supply pressure sensor if necessary If not check replace harness If harness OK replace VM B 1505 1018 000 08 07 1 29 Engstr m Carestation Alarm
13. Neo TVexp Neo TVinsp gt 0 3 Neo TVinsp or 30 mL whichever is greater for 6 consecutive breaths Freeze vent engine volume compensation on first breath detection Check neo flow sensor and cable connections Calibrate expiratory flow sensor Replace neo flow sensor Replace neo flow sensor cable Replace expiratory flow sensor Replace total flow sensor Replace VMB Repace motherboard Replace VCB 7 18 08 07 1505 1018 000 1 Troubleshooting Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting none Neo Exh Flow Sensor High Exh TVexp Neo TVexp 0 3 Neo Comparison TVexp or 30 mL whichever is greater for 6 consecutive breaths Calibrate neo flow sensor Check neo flow sensor and cable connections Calibrate expiratory flow sensor Replace neo flow sensor Replace neo flow sensor cable Replace expiratory flow sensor Replace VMB Repace motherboard Replace VCB none Therapy Power Off High Power switch is set to Off Non silenceable Normal operation if On Standby switch is moved to standby while in therapy Verify vent is in standby state prior to turning power On Standby switch to standby Verify display unit encoder accepts other inputs reliably If not replace encoder Check replace harness to On Standby switch Check replace On Standby switch Check replace
14. Replace internal or external fan assembly if causing excessive noise N RI MA Bo 1505 1018 000 08 07 7 17 Engstr m Carestation 1 6 Alarm message troubleshooting chart Note Whenever Check replace harness is indicated ensure that all terminals are fully inserted into the connector body window and that all wires are properly crimped Troubleshooting guidelines are listed in order of probability The entire list does not need to be carried out if the problem is resolved The list may not include all possible solutions Alarm message display message Alarm ID message in Error log or Event log Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting none DU RAM Error Failed Self test failure or multi bit error detected Run Backup Ventilation if in Therapy Cycle power Replace display unit CPU board none Calibrate neo flow sensor Neo Flow Sensor Comparison High Neo TVexp Neo TVinsp gt 0 3 Neo TVinsp or 5 mL whichever is greater for 6 consecutive breaths Freeze vent engine volume compensation on first breath detection Check neo flow sensor and cable connections Replace neo flow sensor Replace neo flow sensor cable Replace VMB Repace motherboard Replace VCB none Calibrate neo flow sensor Neo Total Flow Sensor Comparison High
15. 7 33 Notes Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Failed State DU to VCB Com Error Failed Proper communications from the DU to Run Backup Ventilation if in message the VCB is not successfully completed Therapy System failure Service required within 90 seconds after startup or within a 10 second window after communications have been established with the DU Cycle power Check error log for underlying causes such as voltage range errors Using service card check DU communication to VMB If multiple subsystem communication failures Check replace DU cable Verify DU system interface PCB is fully inserted into DU CPU PCB Check replace DU system interface PCB connector panel assembly Check replace DU CPU board If not multiple subsystem communication failures Check replace DU cable Verify VCB is fully inserted into mother board Verify yellow VCB communications activity indicator CR16 RX DU is lit and blinking If not blinking Replace VCB Check replace motherboard Check replace DU system interface PCB connector panel assembly Check replace DU CPU board Failed State message System failure Service required DU to VMB Com Error Failed Proper communications from the DU to Run Backup Ventilation if in the VMB is not successfully completed Therapy within 90 seconds after startup or within a 10
16. Displays informational messages The time may be set in 12 or 24 hour format in the Time and Date menu Displays Neonatal Pediatric or Adult patient type mode Displays current measured values corresponding to the waveforms Displays information related to Volume CO 05 Compliance Metabolics Spirometry or Volume per weight Displays several ofthe settings for the current mode of ventilation Figure 1 5 Normal Screen view 08 07 1505 1018 000 1 Introduction When a menu key is selected the waveform fields start at the right edge of the menu The entire waveform is always displayed cmH20 32 20 9 0 498 5 1 Xxxxx Xxx ml cmH20 cmH20 x x 20 18 AB 98 014 1 Menu 2 Waveform fields Figure 1 6 Menu view 1505 1018 000 08 07 1 9 Engstr m Carestation 1 7 1 Using menus Push a menu key to display the corresponding menu Use the ComWheel to navigate through the menu Xxxx Xxxx Xxxx E 3 XXXXXX XXXXXX El Xx XxxX E X00 Xxx El 4 Xooooooxx El 0000 Xo0009X XXXX XXX XXXXXX XXXXXX AB 91 007 Menu title Present selection Adjustment window Indicates submenu Short instructions 6 Menu selections CF PN Figure 1 7 Example menu 1 Push the menu key to display the corresponding menu 2 Tum the ComWheel counterclockwise to highlight the next menu item Turn the ComWheel clockwise to highlight t
17. Open the manual Air shut off valve On the VMB screen Verify that the measured Air Supply Pressure pipeline pressure Verify that the measured O2 Supply Pressure 0 0 psig Onthe VCB screen Energize M1 the Effort Valve Energized Valve Energize M the 02 Flow Valve e Set the 02 DAC counts to 60 000 this will release any O2 pressure in the system e De energize L the Air Flow Valve Plugthe INSPiratory outlet Close the manual Air shut off valve Onthe VCB screen select High Air Leak to start the test Afterthe test is complete Max 6 seconds Verify that the displayed Leak rate does not exceed 50 ml min e if not troubleshoot for leaks in the shaded area Remove the plug from the INSPiratory outlet 10 On the VCB screen e De energize L1 the Effort Valve Energized Valve AB 98 093 08 07 1505 1018 000 Inlet Manifold Atmosphere 1505 1018 000 08 07 5 Service Tests and Calibration INSP e y a H H 3 Auxilary Pressure lt Transducer elit Valve A ii y I Auxiliary Pressure Purge Valve H Paux 3 K Vent Engine Manifold Outlet Manifold Inlet Inlet Fitter Filter 0 do O Optional Standard LE 0 Air Regulator Q Q j Regulator 0 Test Port 0 0 Tota
18. 3 Powersystem On and access the Install Service menu TRM Section 4 2 Change the following as required a Trends Setup TRM Section 4 2 1 Default Trend Graphical Trends b Display Settings TRM Section 4 2 2 Color Units s Show Alarm Limits Time and Date c Ventilator Settings TRM Section 4 2 3 Timing and Flow e Modes with Backup d Parameter Settings TRM Section 4 2 4 e TV Based on e C02 Numbers 4 Access the Service Menu and change the following as required TRM Section 4 4 a Configuration TRM Section 4 4 1 Decimal marker Language Paw s Flow CO e Height Weight Altitude 08 07 1505 1018 000 6 Maintenance L1 b Options List TRM Section 4 4 3 Verify that the factory installed ventilation options match the configuration purchased with the machine L1 c Copy Configuration menu TRM Section 4 4 5 Can be used to copy a configuration to a Compact Flash card and then copy the configuration to additional machines L1 d From the Service menu select the Service Log menu TRM Section 4 4 6 Review and reset the error and alarm log entries L1 5 Access the Install Service menus and perform the following as required TRM Section 5 1 1 L1 a Calibration TRM Section 4 3 E 05 FCV e Air FCV Exhalation Valve e Backlight test L1 b Cal Flag e Setto Off L1 c Power system Off Ll 6 System Checkout TRM Section 3
19. Menu Item Message text Start O2 Flow Control Valve calibration and leak test 4 Installation and Service Menus Comments Select Start Calibration Open inspiratory port to atmosphere Start 02 Flow Control Valve calibration Air FCV Start Air Flow Control Valve calibration and leak test Select Start Calibration Open inspiratory port to atmosphere Start Air Flow Control Valve Exhalation Valve Patient must not be connected to circuit during calibration Start Exhalation Valve calibration Connect to the patient circuit Occlude the patient wye Start Exhalation Valve calibration Backlight Test Start display backlight test This test turns off one backlight to test the otherlight Screen brightness may change during the test Gas Calibration Start gas calibration Calibrate CO2 and 02 measurements Gas Calibration is enabled whenever an MGAS module is installed Gas Calibration is disabled if the MGAS module is warming up Cal Flag Turn the Calibration required message On Off When Cal Flag is set to On the Calibration required message is displayed in the general message area Previous Menu Note 1505 1018 000 08 07 Return to previous menu The Cal Flag menu item is used by the factory to activate the Calibration required alarm It is set as a reminder that calibrations must be performed when the machine is set up for operation at its permanent
20. None for information only Upstream Flow Diff Value Difference between flow measured by total flow sensor and inspiratory wire of neonatal flow sensor during Checkout mLpm None for information only Upstream Flow Failed The inspiratory flow measured by the neonatal Refer to Section 7 1 11 Upstream flow sensor is more than 1596 different from the flow measured by the total flow sensor Valve Step Sweep Valve step sweep in progress None Valve Step Sweep Aborted Valve step sweep aborted because maximum None normal operation flow was reached Valve Step Sweep Done Valve step sweep completed None Valve Sweep Valve sweep in progress None Valve Sweep Done Valve sweep completed None VMB Exp Flow Sensor Cal Fail Expiratory flow sensor calibration has failed Verify expiratory flow sensor and exhalation housing are properly installed 1505 1018 000 08 07 1 53 Engstr m Carestation Message in Calibration running field Troubleshooting VMB Exp Flow Sensor Cal Pass Waiting for supply pressure Expiratory flow sensor calibration has passed FCV calibration if a weak supply pressure is used system will occasionally pause and wait for supply pressure to come back up before resuming FCV cal None None normal operation Weak Supply Detected1 FCV calibration Indicator that system will use None normal operation A weak supply
21. This includes dust and contaminants on the vent engine and particularly metal chips generated by screw threads Before removing components on the vent engine secure a clean work area and thoroughly clean the vent engine to remove any contaminants Failure to do so may result in damage to the internal components After repairs are completed always perform the checkout procedure Refer to Section 3 of this manual Electrostatic discharge through circuit boards may damage the components on them Wear a static control wrist strap before touching the circuit boards Handle all circuit boards by their non conductive edges Use anti static containers when transporting them 08 07 1505 1018 000 9 Repair Procedures 9 1 Circuit Board Replacement precautions Caution 9 1 1 Software download 9 1 2 Required calibrations 1505 1018 000 08 07 The EC stores the system serial number and installed optional features if any in three locations Display Unit CPU board Vent Control board VCB Power Monitor board PMB Each time the system is powered up the software checks to ensure that the information stored in these locations is the same If on power up only two of the three boards have matching information such as would be if one of these boards is replaced the software loads the information from the two matching boards to the third board This scheme allows for replacement of these boards while retaining machine specific p
22. Vent engine high O pressure leak test in progress None 1 45 Engstr m Carestation Message in Calibration running field Troubleshooting High Pressure O2 Leak Test Complete High Pressure O2 Leak Test Fail Vent engine high O2 pressure leak test passed Vent engine high O2 pressure leak test failed because measured leak was too high None Refer to Section Section 5 2 6 High Pressure Aborted The Checkout step in progress was aborted due to high pressure 1 Verify breathing circuit is properly connected for checkout 2 Verify proper flow and exhalation valve calibration recal if necessary Insp flow below target gt Target Value1 gt Insp Value2 Insp Span Counts Value Flow cannot be controlled down to the target flow because the measured flow is already lower than the target flow Inspiratory pressure sensor DAC counts that correspond to 100 cmH20 range 3026 to 3589 1 Check for disconnected breathing circuit during Checkout 2 Verify proper flow valve calibration recal if necessary None IInspFlowAccumulator Value1 jj Value2 Intermediate values in low pressure leak check compliance calculation None for information only Low Air Pressure value Air supply pressure 30 psig Verify proper gas supply Low Exp Pressure Value1 Value 2 During exh valve cal the pressure dropped more than 1 25 cmH20 in 4 msec Valuei Cur
23. completed within a 10 second window Note Timing does not start for 90 seconds after power up Cycle power Check error log for underlying causes such as voltage range errors Using service card check DU communication to VCB If multiple subsystem communication failures Check replace DU cable Verify DU system interface PCB is fully inserted into DU CPU PCB Check replace DU system interface PCB connector panel assembly Check replace DU CPU board If not multiple subsystem communication failures Check replace DU cable Verify VMB is fully inserted into mother board Replace VMB Check replace motherboard Check replace DU system interface PCB connector panel assembly Check replace DU CPU board Failed State message System failure Service required VMB to VCB Com Error Failed Proper communication of the high Speed sensor data from the VMB to the VCB is not successfully completed within a 50 ms window Cycle power Check error log for underlying causes such as voltage range errors Check DU VMB and DU VCB communication using Service Card Verify VMB and VCB are fully inserted into motherboard Check replace VMB Check replace VCB Check replace motherboard 7 36 08 07 1505 1018 000 1 Troubleshooting Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting System Low Inter
24. 10 000 Hour Kit 120 V 60 Hz 10 000 Hour Kit includes Motor OF302 Refer to JunAir Evair 03 TRM Page 10 Non return valve 2 each P N 5414500 Refer to the JunAir EVair 03 TRM Figures 4 and 7 e Solenoid valve Referto JunAir EVairO3 TRM Figures 8 and 9 Auto drain Refer to JunAir EvairO3 TRM Page 9 08 07 1505 1018 000 6 4 Cleaning and sterilizing agents 6 Maintenance WARNING The following cleaning disinfection agents have been validated for material compatibility only The effectiveness of sterilization with these agents has not been validated Mild Ethyl Autoclave at detergent Alcohol Sporox II Cidex NU CIDEX CIDEX OPA 134 C arid warm water Expiratory flow yes yes no no no yes yes sensor Exhalation valve yes yes no no no yes yes housing and parts Fan filters no no no no no no yes Aeroneb Pro no no yes yes yes yes yes Nebulizer Water trap yes yes no no no yes yes cart mounted Cables yes no no no no no yes External surfaces no no no no no no yes Neo Flow Sensor yes yes no no no yes yes 1505 1018 000 08 07 6 7 Engstr m Carestation 6 5 Battery capacity test 6 8 Although replacement of the backup batteries is recommended at the end of 4 years batteries that pass the capacity test can be considered viable for battery backup of the system for up to 6 years at the discretion of the hospital Before testing the batteries ensure th
25. 18 2 3 5 Ventilator Monitoring Board VMB 6 cece cece eens 2 20 2 3 6 Power Management Board PMB 0 ccc e eee eee eee eee 2 23 2 3 7 Other Electronic Items ass unane een eee I 2 23 2 3 8 Motherboard backplane 4 ss sn en sedel rerien enirere keri 2 24 2 3 9 Monitoring Interface Board Monitoring Module Bays 045 2 25 24 Engstr m Carestation 2 1 Pneumatic Operation 2 2 For a complete diagram of the pneumatic system referto Figure 11 3 Vent Engine manifold flow diagram in Section11 The EC requires medical grade oxygen 05 and medical grade Air sources ranging from 2 4 to 6 5 bar 35 to 94 psi Referto Appendix For additional information regarding medical grade gasses Additional filtering will not be necessary if supplied gasses are medical grade If gas supply does not meet specifications refer to Appendix A for information regarding risks and recommendations on filters The system includes two separate channels 0 and Air to provide dynamic mixture control of the delivered O percentage The Air supply may include an optional compressor unit 1 for applications where pipeline Air is not available orto provide a continued Air supply if the pipeline supply goes down AB 98 055 Air AB 98 022 08 07 1505 1018 000 2 1 1 Primary Gas Inlet 1505 1018 000 08 07 2 Theory of Operation
26. 2 8 As a safety measure a relief valve 14 located downstream from the 05 sensor can be energized to vent the full flow rate of the inspiratory delivery side of the system If an overpressure condition is detected the valve can be opened by either of the EC s two control processors To provide redundant safety independent of the electronic circuits the valve begins to mechanically relieve pressure at a nominal 115 cm H50 Sensor Paj H 15 d 1 Inspiratory Pressure ma Air 7 Total Flow Inspiratory Zero O2 Sensor alve CN TE Flow Valve Inspiratory Effort Valve Safety Relief Valve Free Breathing Check Valve 14 The inspiratory airway pressure transducer 15 along with its associated zeroing valve is located just prior to the inspiratory outlet port This transducer has a range of 20 to 120 cm H30 and serves as one of three airway pressure measuring devices in the EC 08 07 1505 1018 000 2 1 2 Expiratory circuit 1505 1018 000 08 07 2 Theory of Operation Atthe expiratory side of the ventilator a solenoid powered exhalation valve 16 controls exhaust from the breathing circuit The valve contains an elastomer diaphragm that is held against a rigid seat by a solenoid voice coil driven piston The valve achieves a balance between the pressure generated within its 21 mm diameter
27. 3 4 Ventilator Control Board VCB s 44 44 eect rade ak ra 2 18 2 3 5 Ventilator Monitoring Board VMB sossssessssesssssrrsss rer s rr ser rea 2 20 2 3 6 Power Management Board PMB s 4s ss 4 sms es slaves sea teni 2 23 2 3 1 Other Electronic ITEMS 2 soo c dee ee eerte de wee eee Meena DES 2 23 2 3 8 Motherboard backplane 00 c cece rr rr rer rr rr II 2 24 2 3 9 Monitoring Interface Board Monitoring Module Bays 4 2 25 3 1 Inispectthie Systelmi zs cise ca kke pb nek Revue n Kj ll atu 3 2 3 2 Automated CHECKOUT usce peret et reto awe acere des Rs a 3 2 SRL eI 3 3 3 4 Powerfail re test 1 neus seek pm ma doves ox meten nn wa x ew RR e ed ds 3 3 3 5 Electrical safety tests 3x2mss bamse eu sa da cR Rx exime REST RN a dame 3 4 08 07 1505 1018 000 Table of Contents 4 Installation and Service Menus 4 1 Service and Installation menu structure 6 0 cece eee eens 4 2 4 2 Install Service Menu Super User sms cease ea nnnm 4 3 4 2 1 Trends Setup ceci pee ber creme hod ey nda Xs ane 4 4 4 2 2 Display Settings ccc ninwa cece eee Hmm 4 5 4 2 3 Ventilator Sewing accuse ata riot eite ae aise RR n maa elaine 4 7 4 2 4 Parameter Seuings wi ccc siewiss bearers ceed eked od cule ARE RAE pa Se 4 7 4 25 Defaults sa rie eris dta Rr wade or RD eta eroe RR d one RUE os 4 8 4 2 6 Factory Defa lts rire cuni ber emer rhe eerte eR rn eR ene wee 4 10 4 3 Calibratio
28. 6 If a system comes up in a Failed State you can download the logs to the Service Application PC Card and view them on the Special Functions screen 1 With the system still in the Failed State insert the Service Application PC Card into the Display Unit and press the Help softkey 2 Waitapproximately 60 seconds while the logs are downloaded to the card no apparent activity 3 Restart the system with the Service Application to view the logs Whenever a Software Download is completed the specific software download is recorded in the Revision Log that resides on the system Display Unit and in the PC Card Install Log that resides on the PC Card The Compatibility Table lists the current software components that last downloaded on to the system In essence it is the latest listing that appears in the Revision Log which allows you to view the current log directly without having to scroll to it 08 07 1505 1018 000 8 3 1 View revision log EV FPC EV PMB EV VCB EV VMB EV DUA EV DUB EV DUF Note 8 3 2 View PC Card install 1505 1018 000 08 07 log 8 Software Download and Diagnostics Selecting View Revisions Log brings up the Revision Log for the system The log includes chronological entries for every Software Download that was completed to the system Each entry includes two header lines and eight data lines in the following format View Revision Log Software configuration after down
29. 98 155 ES Display fan filter Display connection Module bay connection AC mains inlet System switch Equipotential connector Oxygen supply connection pipeline Air supply connection pipeline or compressor Module bay mounting thumbscrews 10 Ventilator unit fan filter 11 Serial communication port Nurse call Port 4 12 Arm holder 13 Port 1 Neonatal Flow Sensor 14 Port 2 Not currently supported 15 Port 3 Used to communicate with PC based Service Application Refer to Section 8 5 16 Communication port Refer to Section 2 3 17 Communication port Refer to Section 2 3 18 Communication port Refer to Section 2 3 19 Communication port Refer to Section 2 3 Figure 1 3 Back view of the EV o NL OY OT ohwxo AB 98 154 17 16 08 07 1505 1018 000 1 Introduction 1 6 Display controls and indicators 1 Alarm LEDs 2 Silence Alarm key 3 Menu keys 4 ComWheel 5 Normal Screen key 6 ACmains indicator 7 Quick keys 8 102key AB 98 139 The red and yellow LEDs indicate the priority of active alarms Push to silence any active silenceable high and medium priority alarms or to suspend any non active high or medium priority alarms Alarm audio is silenced or suspended for 120 seconds for Adult and Pediatric patient types and for 30 seconds for Neonatal patient types Push to clear resolved alarms Push to show correspo
30. COM port and click OK to continue Note Ensure that no other application such as PDA hot sync is using this port while the Service Application is running Port COM1 COM2 COM3 COM4 COMS COM1 COM6 COM7 COM8 COM9 COM10 The Main Menu appears on the screen and includes the following selections as shown in the table below The main menu includes a Connection Status message area that shows whether or not the program is communicating with the EC The VCB and VMB Diagnostics pages can both be displayed at the same time Closing the main menu closes the application VCB Opens the VCB Diagnostics page VMB Opens the VMB Diagnostics page Select Gas Supply units for gas units for display on the VMB screen or select PAW Units to display pressure units for display on the VCB and VMB screens Gas Supply Units VMB psig kPa bar PAW Units VCB VMB cmH20 kPa mbar 08 07 1505 1018 000 8 Software Download and Diagnostics 8 6 VCB Diagnostics and Calibration Selecting VCB Diagnostics and Calibration on the Main Menu brings up the following page that contains five grouped area saa 3 129 1 2 5 mer e nef ane ep Mere f EF VENE e was 1 LL 8 6 1 Sensirion sensors The Sensirion Inspiratory Flow Sensors group shows the temperature and the flow through each flow sensor Total flow Oxygen and Air Re m Tome ow XXX X C XXX X C Temperature XXX X C Flow ml min XXXXXX XXXXXX XXXX
31. Care Stall OM 2 sumssiselsms esse sas nnn 1 3 1 5 Ventilator OVerVIGW 48306 rena e dee Bred c eee ede DER dodo Ea da 1 5 1 6 Display controls and indicators sme cece nee be II 1 7 1 1 Veritilator display isc ccs sense deg tet pit tienne ni ete tg Ro R NRA wun Rn BRATE AE 1 8 1 7 1 Using MENUS sa i3 x eae e att dedos X Rn RU RR RR RR acta aec 1 10 1 8 Symbols used in the manual or on the equipment 6 00 e cece eee eee 1 11 ii Engstr m Carestation 2 Theory of Operation 3 Checkout Procedure 2 1 Prieumatic OperatiQn ue ratones stad er EROR RU GR RUE RR eae 2 2 21 1 Primary Gas Inlet ios noe rex RE ER TR E eee asa REFER 2 3 2 1 2 Explratory CHCU s usua cs eere REPRE xa Dx ER RARE NER 2 9 2 1 3 Associated circuits iscsi ees ices ect ees esee nn ee mee mecnm e eem Ra 2 11 2 1 4 Electronic micropump nebulizer sess 2 11 2 2 Electrical Operation s 32 nues Re pisani naek we RP Ea xxr RES wee E RE REA 2 12 2 2 1 Display Unit OVEIVIEW smsa eee sp sie con ke RR bem n nn 2 12 2 2 2 Software requirements sac vce ses sa seen eme nem nte nre em ed 2 13 2 2 3 DU system connections oues onte nes heme n xu verb EY Rus E GPES 2 13 2 3 System Connections sve od tnr aee E E KORR ee RI REIR Ead PS 2 14 2 3 1 Display Unit 45 seite I RR br e hee prt re Ee pP ERE Y edd 2 14 2 3 2 High Performance Display Unit sa 6 0 00 cece eee eee eee 2 15 2 3 3 COMMUNICATION cliannels 23 onere ee Reha Ara eme 2 16 2
32. Engstr m Carestation 5 22 5 2 11 Verify operation of auxiliary pressure relief valve Connect a manometer to the auxiliary pressure port Paux using a tee fitting and a short piece of 3 mm 1 8 inch tubing Open the manual Air shut off valve Onthe VCB screen e Energize MI the Auxiliary Pressure Purge valve Block the outlet of the tee Verify that the pressure indicated by the manometer not the PC based application is greater than 90 cmH50 but less than 230 cmH50 Caution Do not allow the pressure to build up over 250 cmH50 e if not troubleshoot the umbrella relief valve 1505 3267 000 Close the manual Air shut off valve Remove the test setup e o oc 9r co x 3 C2 CO To Manometer 08 07 1505 1018 000 Inlet Primary Filter Standard 5 Service Tests and Calibration Inlet Air High Pressure ducer Regulator P 25 psi P 172kPa Inlet Check Primary Filter Optional valv Inlet Manifold nee fs ins is g i i Pnoumatio e exhalation Panan Gy ree T Een LS m T X Wy 7 m sensor H B Be P NI Eois Pre Inspiratory Pressure P os p WENS T Inlet Filter P 0 CX lt Optional Inspiratory ry d 4 fo M Enon wt E EP uU NY Safet
33. L1 a Power system On and verify the Calibration Required message is not displayed upper right portion of the display L1 b Perform Checkout Procedure TRM Section 3 nspect system TRM Section 3 1 Automated Checkout TRM Section 3 2 PowerFailure test TRM Section 3 4 e Electrical Safety tests TRM Section 3 5 1505 1018 000 08 07 6 3 Notes 6 2 Engstr m Carestation Planned Maintenance Serial Number Date YY MM DD Hospital Performed by O 12 months L1 24 month L1 48 month L1 6 2 1 Every twelve Perform the following steps every 12 months 12 months For details refer to the sections listed O 1 If required adjust the Display Unit arm joints Section 9 6 L1 2 If required adjust patient monitoring module rack arm L1 3 Visually inspect Vent Engine fan filter Clean or replace as needed L1 4 Visually inspect Display Unit fan filter Clean or replace as needed L1 5 Visually inspect exhalation valve assembly Clean or replace as needed L1 6 Visually inspect gas inlet filters O2 and Air Replace as needed CAUTION Any visual signs of moisture or particulate matter indicates that the facility may have a problem with their Medical gas delivery system Return the replaced filter to the appropriate authority in the facility so that they are aware of the problem and can correct as needed If there is any indication of moisture in the filter the main manifold must be inspected to ens
34. Log Show alarm history SW HW versions Show system information Copy Logs Save HW SW info all logs and trend information to memory card Reset Logs Erase Error and Alarm log entries Previous Menu Return to previous menu Each history log shows at the top of the screen total Running Hours the date when the logs were last reset and the Ventilator Serial Number Whenever logs are reset Reset Logs dd MMM yyy hh mm ss is recorded in the Event log If the logs are saved to a memory card the ventilator s serial number date and time are saved along with the current contents of the logs The Error Log lists the last 200 errors logged since the last log reset starting with the most recent The system stores the last 1 000 errors logged since the last log reset The Event Log records the service history of the device This includes service calibrations entry into the service mode options enabled and software installation In the event of a board replacement it is understood that this log like all others could be lost The Event History menu lists the last 200 events logged starting with the most recent The Event History log stores the last 1000 events The Event History log cannot be reset The Alarm Log lists the last 200 alarms since the last log reset starting with the most recent The Alarm History log store the last 1000 entries The Copy Logs function copies Error Event and Alarm logs along w
35. Power Control Power Diagnostics System is running on battery power 1505 1018 000 08 07 8 5 Engstr m Carestation 8 1 4 Display Unit Power Selecting Display Unit brings up the Display Unit Power Diagnostics page Diagnostics Display Unit Power Diagnostics Power Diagnostics Label Value Format Units Normal range Power Control 5 0Vdc PCMCIA XXX Vdc 4 50 to 5 50 Display Unit 3 3Vdc PCMCIA X XX Vdc 2 97 to 3 63 gt Main Menu 5 0Vdc Fan X XX 4 50to 5 50 5 0Vdc USB X XX 4 50to 5 50 8 0Vdc DIS X XX 1 20 to 8 80 11Vdc LCD XX XX 10 35 to 13 62 8 6 08 07 1505 1018 000 8 2 Display Diagnostics Power Diagnostics Display Diagnostics Special Functions Software Download 1505 1018 000 08 07 8 Software Download and Diagnostics The service application provides several pages for display diagnostics Selecting Display Diagnostics on the Main Menu brings up the following menu selections in the left hand frame Display Diagnostics Test LEDs Test Speaker Test Backlight 1 Test Backlight 2 Test Keys Main Menu Display Diagnostics Test LEDs Test Speaker Test Backlight 1 Test Backlight 2 Test Keys Main Menu Display Diagnostics Instructions Select a menu item To troubleshoot a display problem start with Test LEDs and work forward Action when selected Selecting Test LEDs causes the red and yellow LEDS nextto the Silence Alarms key to flash for 10 seco
36. Purge valve AB 98 088 5 10 08 07 1505 1018 000 5 Service Tests and Calibration Free Breathing AB 98 209 Inlet Manifold Vent Engine Manifold Outlet Manifold Inlet Inlet Filter HOLI Air Standard P2 Regulator u et iN E Bl L N Js s Atmosphere em Jc al 0 Sensor AB 98 210 1505 1018 000 08 07 5 11 Engstr m Carestation 5 2 6 Vent engine Note The high O2 pressure leak test will not start ifthe 02 supply pressure is 35 psig or leak test highO below pressure 1 Verify that the inspiratory outlet is open to atmosphere not plugged 2 Open the manual O shut off valve 3 Onthe VMB screen Verify that the measured 02 Supply Pressure pipeline pressure Verify that the measured Air Supply Pressure 0 0 psig 4 Onthe VCB screen Energize MI the Effort Valve Energized valve e Energize M the Auxiliary Pressure Purge valve e Verify that the Exhalation Flow Valve is energized M Set the Exhalation DAC counts to 60 000 e Verify that the Air Flow Valve is energized M e Set the Air DAC counts to 60 000 this will release any air pressure in the system e De energize L the 02 Flow Valve 5 Plugthe following ports e INSPiratory outlet EXPiratory inlet Auxiliary pressure port Paux 6 Close the manual O shut off val
37. Rn 5 2 5 1 1 Calibration procedure ssssssesssssseeIIe 5 3 5 2 Service level tests and calibration cc cece eee eee re r n 5 4 5 2 1 Service application setup 4 ds msn edra ke dre a ian Ae offer eee 5 4 5 22 ci D T 5 4 5 2 3 Vent engine debris clean oUt iau co ee reor in Rae ede 5 5 5 2 4 Regulator output pressure teSt 0 cece cece ease KR 5 6 5 2 5 Vent engine leak test low pressure 5 8 5 2 6 Vent engine leak test high O5 pressure 5 12 5 2 7 Vent engine leak test high Air preSSure ccc eee eee ee 5 14 5 2 8 Calibrate airway pressure transducer Zero and Span sssuse 5 16 5 2 9 Verify operation of free breathing valve 0 cece eee eee eee 5 18 5 2 10 Verify operation of inspiratory effortvalve cece cece eee ee 5 20 5 2 11 Verify operation of auxiliary pressure relief valve ccc eee eae 5 22 5 2 12 Mechanical over pressure valve test ccc cece eee eee eee eens 5 24 5 1 Engstr m Carestation 5 1 Calibration super user 5 2 Note Note The EC ventilator includes integrated software that allows a qualified user to periodically calibrate the O flow valve the Air flow valves and the Exhalation valve At a minimum these calibrations should be completed every 6 months whenever performance is questioned or when associated components are serviced or replaced These calibrations can be performed more frequently as
38. Tested Last Full Discharge Time Ext l Battery Current Turn the ComWheel to select the second page Push the ComWheel to return focus to the Power Diagnostics selection menu 84 08 07 1505 1018 000 8 Software Download and Diagnostics Page 2 of 2 Power Diagnostics Power Control Power Diagnostics Power Control Label Value Format Units Normal range Display Unit Board Temperature lt 65C OK green DegC Upper Limit 64 gt 65C lt 75C Warn Yellow gt 75C Fail red gt Main Menu Fan Speed Slow Fast Fan 1 Voltage XX XX Vdc 17 5 to 25 0 high fan speed 23 7V typical low fan speed 20 7V typical Fan 1 Status Fail OK Fan 2 Status Fail OK Note Fan 1 is located on the rear cage Fan 2 is located on the PMB Turn the ComWheel to return to the first page Push the ComWheel to return focus to the Power Diagnostics selection menu Fail Battery is disconnected from Power Control Power Diagnostics and is in Trickle mode for gt 12 hours Bulk Chg Initial phase of battery charging Battery is at600 mA when system is running and 1 2 Amps when system is in standby Battery Status Over Chg Topping off remaining 5 10 of battery capacity and approaching full charge Float Chg Battery is being maintained at full charge Trickle Chg Independent of battery charger Severely degraded batteries are charged at 25 mA constant current when either battery is 6 10 Vdc and batteries are not connected to
39. Value the degraded wall supply routine for FCV pressure was detected when trying to ramp the calibration flow up to 165 L min Weak Supply Detected2 FCV calibration Indicator that system will use None normal operation A weak supply Value the degraded wall supply routine for FCV pressure was detected during the 120 L min calibration flow test Weak Supply Detected3 FCV calibration Indicator that system will use None normal operation A weak supply was Value the degraded wall supply routine for FCV detected during final flow ramp up before first calibration cal points are taken Weak Supply Detected4 FCV calibration Indicator that system will use None normal operation A weak supply was Value the degraded wall supply routine for FCV detected during final flow ramp up before first calibration cal points are taken if DAC output reached 65 000 counts before flow reached 170 L min Xducer Error Value During Paw Xducer check the insp and exp pressure difference gt 4 cmH50 Value pressure difference Refer to Section 5 2 8 Zero flow samp Error in FCV calibration cal point projection Check for weak or restricted gas pressure supply Zero for flow sampl2 Error in FCV calibration cal point projection Check for weak or restricted gas pressure supply Zero out of range ADC counts are out of the acceptable zero pressure range for the inspiratory and or expiratory pressure sensor The acc
40. Verify gas flow from flow control valves Recal if necessary 02 Flush Time Value sec Value time sec needed to flush system with 0 until stability of 0 1 O is reached None 02 Sensor Fail Failed Paracube communications during 05 sensor check Replace Paracube 02 Sensor Failed 10096 Paracube Cal never competed timed out during Check paracube sensor Cal 10096 07 cal 02 Sensor Failed 2196 Cal Paracube Cal never competed timed out during Check paracube sensor 21 07 cal 02 Too Low for 10096 Cal Measured 05 lt 41 during the 100 span calibration of the 02 sensor 1 Verify proper connection of gases to ventilator 2 Use the Service App s 02 Sensor cal to override limits on O sensor calibration 3 Replace Paracube 1505 1018 000 08 07 1 49 Engstr m Carestation Message in Calibration running field Troubleshooting O2 Too Low for 2196 Cal Measured 05 8 during 21 calibration of 1 Verify proper connection of gases to 02 sensor ventilator 2 Usethe Service App s 02 Sensor cal to override limits on O sensor calibration 3 Replace Paracube O2 Valve Cal O2 Valve Cal in progress None O2 Valve Cal Complete 0 Valve Cal Passed None 02 Valve Cal Fail 02 Valve Cal failed See previous message in status log for cause of failure Oxygen Flow Sensor Chk Oxygen Flow Sensor Check None Oxygen Sensor Chk Comple
41. X protocol 4 A 38 4 Kbaud RS 232 link to the PMB Provides display signal input output battery and power information to the DU This link is located internally on the Motherboard and is used to confirm a hard power down ofthe EC with user inputs to the DU being relayed to the PMB for power down action 08 07 1505 1018 000 Module Bay E amp M Gas Intel 196 Processor 1505 1018 000 Display Unit 2 Theory of Operation PCMCIA 2 Memory Card Display Unit CPU 9 6 Kbaud DU Controls Color LCD EV Chassis RS 232 38 4 Kbaud F3 232 Serial External 1 0 RS 422 38 4 Kbaud RS 422 tt 38 4 Kbaud ISA Bus DU Mod Bus RS 485 500 Kbaud 1 Mod Bus RS 485 500 Kbaud G PSM Future Expansion 1 Neo Flow Sensor Optional VMB 2 1 gt Future Expansion RS 422 gt VCB RS 422 Vent Monitor RS 422 2 19 2 Kbaud Vent Control 921 6 Kbaud Atmel ATmega 38 4 Kbaud Motorola 128 Processor Coldfire V4 3 G Future Expansion RS 422 Processor lg RS 422 3 Service App 19 2 Kbaud 38 4 Kbaud 4 External 1 0 Serial le C Nurse Call PMB Power 5 Management RS 232 Board 38 4 Kbaud 08 07 Atmel ATmega 128 Processor AB 98 198 2 17 Notes 2 3 4 Ventilator Control Board VCB 2 18 T
42. available options that are On Power down the ventilator Perform the software download per TRM Section 8 4 Download New After software download is complete power up the ventilator and select Service Menu Options List Verify the options On match the options recorded in step 2 IMPORTANT e Ifthe On options match the options recorded in step 2 proceed to step 11 e If the options On do not match the options recorded in step 2 go to the Datex Ohmeda Key Code Generator Web site www docodes com and follow the instructions to request a new Key Code After you receive the new Key Code select Service Menu Options Key Enter the new key code select Save New Key and proceed to step 7 Select Service Menu Options key Record the new three digit Control Board ID and new seven digit Key Code on the new Key BID label 1504 3521 000 Remove the existing Key BID label from the back of the machine Clean the area with Isopropyl alcohol 10 Affix the new Key BID label to the machine 1504 3521 000 11 Perform Super User Calibrations per TRM Section 5 1 1 12 Perform Checkout procedure Section 3 08 07 1505 1018 000 AN WARNING In this section 1505 1018 000 08 07 5 Service Tests and Calibration After adjustments and calibration are completed always perform the checkout procedure Refer to Section 3 of this manual 5 1 Calibration Super sSer s ese lames e Rr ea chem o exo Rx ROUEN
43. chassis is removed position the Display Unit as shown centered over the housing components can not be removed with the Exhalation Valve in place chassis connector each corner of the back panel Remove the circuit board retainer Disconnectthe engine harness connectors from the circuit boards Removethe fourscrews two on each side that hold the Vent Engine manifold to the chassis Slide the Vent Engine out of the chassis 9 5 Engstr m Carestation 9 6 9 3 3 To replace chassis mounted components Note Referto Section 9 1 for precautions regarding board replacement After replacing a circuit board download current software refer to Section 9 1 1 and calibrate the system refer to Section 9 1 2 9 3 4 To replace vent engine components ANWarning Most of the major components on the chassis can be replaced directly Only a few ofthe less accessible components require you to remove other components before they can be replaced When replacing the Power Management Board transfer the existing heat sink and fan to the new board When servicing the EC extreme care must be taken to avoid introducing foreign debris into the pneumatic flow passages ofthe ventilator This includes dust and contaminants on the vent engine and particularly metal chips generated by screw threads Before removing components on the vent engine secure a clean work area and thoroughly c
44. communications interface between the DU s CPU and the remainder of the EC system A second daughter board DU Connector board provides hardware connector interfaces for the USB Network ID Ethernet and Display Unit connector ports The CPU board includes a PCMCIA PC Card interface The DU s CPU board provides power and signals for operating the main audio speaker and a 12 inch 30 cm backlit color LCD display providing an interactive video interface Membrane keys from three front panel keypads and a rotary encoder ComWheel complete the loop for acquiring user inputs The DU housing contains a continuously operating fan for temperature reduction Display Unit Keypad LCD Display Knob DU Infc Bd Display Unit CPU Board CPU Elan UARTs SC520 PC Card DU Conn Bd Speaker DU Ethernet Pa USB AB 98 073 2 14 Engstr m Carestation 2 3 System Connections 2 3 1 Display Unit The DU accommodates the following connections e Display connection 1 DIS connector supports D O Device Interface Solution DIS 2 Network connection Standard Ethernet port for network connectivity 3 Network ID accepts D O proprietary network identification plug 4 USB port standard USB interface for external communication 5 AB 98 182 08 07 1505 1018 000 2 Theory of Operation 2 3 2 High Performance The HPDU accommodates the f
45. compliance and Raw Spiro static compliance Paux auxiliary pressure V02 VO2 and VCO2 V02 m2 VO2 and VCO2 weighted by body surface area V02 kg VO2 and VCO2 weighted by body kg EE RQ energy expenditure and respiratory quotient Return to previous menu Page 1 Configure first graphical trend page Page 2 to Page 5 Second third fourth fifth Previous Menu Return to previous menu Use the Pull Aside list to select options for each menu item and page Options are shown below Page 1 Page2 Page 3 Page 4 Page 5 Default Default Default Default Default Previous Menu Return to previous menu 4 4 08 07 1505 1018 000 4 2 2 Display Settings Colors Menu 1505 1018 000 08 07 4 Installation and Service Menus The Display Settings menu can be accessed here in the super user level to change individual preferences or if required during installation in the service level Installation menu Menu Item Message text Values Colors Set colors of parameters Units Set units of Paw Flow CO2 height weight and EE Show Alarm Limits Select yes No to show alarm limits Yes No in digit fields Time and Date Change clock and calendar functions Previous Menu Return to previous menu Menu Item Message text Values Paw Change color of Paw waveform Yellow White digits and trend Green Red or Blue Flow Change color o
46. eens 5 16 5 2 9 Verify operation of free breathing valve 0 cece cece eens 5 18 5 2 10 Verify operation of inspiratory effort valve ccc cee eee ees 5 20 5 2 11 Verify operation of auxiliary pressure relief valve ccc eee eee 5 22 5 2 12 Mechanical over pressure valve test 2 00 cece eee e eee eee 5 24 V Engstr m Carestation 6 Installation and Maintenance 7 Troubleshooting vi 6 1 Engstr m Carestation Installation Checklist ssssssssesssrsrerssrsrrrr ers rr rs r rss 6 2 6 2 Engstr m Carestation Planned Maintenance 0 ccc eee eee eee eee 6 4 6 2 1 Every twelve 12 months serrit pnia crre sj ack did rida nup ka Ie 6 4 6 2 2 Every forty eight 48 months ccc cece eee reser ers rr ere rs 6 4 6 2 3 Every sixty 60 MONS oe ere remet ARN x eR Rd erp xs 6 4 6 3 JunAir EVairO3 Compressor Maintenance Model OF302 1 5DSA 6 5 6 3 1 Every twelve 12 motitlis 2 nex Srt heme oh alere a IEEE 6 5 6 3 2 Every 10 OOO NOUS orst ees te xh phe eo X RE ELE Ra EXE 6 6 6 4 Cleaning and Sterilizing agents cs 22 no nme Rt mh pm heo eae ea 6 7 6 5 Battery capacity teSE ct cits sed ete pice e RP Ey SEN ALA la Ree RUE SUR REL RUND RR 6 8 7 1 Troubleshooting Checkout Failures s avse sis sees vsb sned sea erna 1 2 1 1 1 Paw transd cer Check erii here eee e d mer bere eke e 1 2 4 1 2 Barometric pressure teSt 5 es ee eh rh n Rh ERE ERR RES 1 3 7 1 3 Low pres
47. folded over under the membrane Ground Strap fully inserted Carefully lowerthe membrane straight down to the enclosure Seatthe membrane in place Remove the backing from the keypad and install it overthe membrane switches Attach the ground strap to the enclosure To install the EMI To fully seal the Display Unit enclosure you will need approximately 2 3 meters of gasket EMC gasket 10 Cut the gasket into five strips shown below Insert a continuous length of gasket in the outside grove of the enclosure sparingly apply Super Glue Gel to the channels near the corners before installing the gasket Insert individual lengths of gasket in the inside grove around the window sparingly apply Super Glue Gel to the channels near the corners before installing the gasket 1505 1018 000 08 07 lt 1206 mm total four sides Engstr m Carestation 9 5 Servicing the High Performance Display Unit HPDU Note To service the DU refer to Section 9 4 The item numbers appearing in parenthesis in this section referto items in the parts list in Section 10 8 The fan filter 26 and the access door 3 to the PCMCIA interface can be replaced with the Display Unit in place To replace the filter slide the filter capsule 25 downward to remove it from the Display Unit To service other components of the Display Unit you must first remove the Display Unit from the machine 9 5 1 Removethe TheDisp
48. gauge and plug the test port 0 Adjust 05 Regulator S 4 Test Port Air Adjust Air Regulator Test Port 08 07 1505 1018 000 Oo Inlet Manifold Atmosphere 1505 1018 000 08 07 5 Service Tests and Calibration T uu IRE m MS OM T z EA NES ieas s M Do Transducer Flow i Regulator Pneumatic Em Puer H kas ENS wales Expratory Pressure V rera Pose p WELE Hn High Pr Flow Fiow we 0 dB sies ce nto EE Effort L Vv Sata panies 2 S 3 gt 2r z mo E irem pe E Auxiliary Pressure P Pune Y zi xd i i EN Vent Engine Manifold Outlet Manifold Inlet Standard Total Flow Sensor INSP AB 98 119 5 7 Engstr m Carestation 5 2 5 Vent engine leak There are two low pressure leak tests to perform P1 and P2 test low pressure Low P1Test 1 Verify that both shut off valves are closed 2 Onthe VCB screen e Energize MI the Auxiliary Pressure Purge valve Verify that the Air Flow Valve 02 Flow Valve and the Exhalation Flow Valve are energized II e Set the Air DAC 02 DAC and the Exhalation DAC counts to 60 000 this will release all pressurized gas from the system 3 Attach the low pressure test tool to the INSPi
49. indicators If lit replace VCB f no VMB comm check VMB CR10 red reset indicators If lit replace VMB Failed State message System failure Service required VCB to DU Com Error Failed Proper communications from the VCB Run Backup Ventilation if in to the DU is not successfully Therapy completed within a 10 second window Note Timing does not start for 90 seconds after power up Cycle power Check error log for underlying causes such as voltage range errors Using service card check DU communication to VMB f multiple subsystem communication failures Check replace DU cable Verify DU system interface PCB is fully inserted into DU CPU PCB Check replace DU system interface PCB connector panel assembly Check replace DU CPU board If not multiple subsystem communication failures Check replace DU cable Verify VCB is fully inserted into mother board Verify yellow VCB communications activity indicator CR15 TX DU is lit and blinking If not blinking Replace VCB Check replace motherboard Check replace DU CPU board 1505 1018 000 08 07 1 35 Engstr m Carestation Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Failed State VMB to DU Com Error Failed Proper communications from the VMB Run Backup Ventilation if in message to the DU is not successfully Therapy System failure Service required
50. it faces backwards 3 Disconnect the display cable A 4 Remove the four screws that hold the DU to the upper pivot B 9 12 08 07 1505 1018 000 9 Repair Procedures 9 4 2 Disassemble Place the Display Unit face down on an anti static pad Before removing the rear the Display Unit enclosure ensure that the release tabs on the PCMCIA frame are fully depressed 1 Loosen L the four captive screws at each corner of the rear enclosure 2 Liftthe rear enclosure slightly and pivot it away from the lower enclosure at the bottom side of the Display Unit 21 28 1 At this point you can replace the following items The item numbers refer to the parts list in Section 10 9 e the fan 26 the connector panel assembly 21 the encoder assembly 12 e the battery 5 s the speaker 20 To access the mounting screws for the speaker you must first remove the ten screws that hold the mounting plate to the front enclosure so that you can raise the bottom edge of the assembly slightly Referto section 9 4 4 the rear enclosure 1 You can transfer the captive screws to the new enclosure However the gasket 28 is held in place with adhesive When replacing the rear enclosure also include a new gasket To replace the remaining items requires further disassembly 1505 1018 000 08 07 Engstr m Carestation 9 14 9 4 3 To replace the CPU board 1 2 Remove the connect
51. lower than the Inspiratory pressure 1 Remove the restrictor and re install the restrictor access cover Repeat the test a If pressures equal install a new restrictor and repeat the test b If not or if failure occurs with new restrictor continue 2 Check seals on the following individual components in the order listed replace components as needed and repeat the test Restrictor cover gasket Auxiliary pressure relief valve Auxiliary pressure zero valve gasket Auxiliary pressure sensor o ring o o0 I Outlet manifold o ring 3 Iffailure occurs replace the following components in the order listed Auxiliary pressure sensor assembly Auxiliary zero valve Outlet panel assembly o 0 o0 90 Main manifold assembly 1505 1018 000 08 07 7 13 Engstr m Carestation 1 3 Troubleshooting Startup Screen POST messages Message If the EC system encounters a problem at startup to where it cannot initiate System software a BIOS error message indicating the failure will be displayed NOTE RTC failed xx NOTE CMOS defaults reloaded NOTE CMOS battery failed Replace soon NOTE NOTE ECC failed xx NOTE System reset EC xx NOTE Critical hardware failure xx NOTE OS App ROM CRC failed NOTE System reset Alarm tone detection failed What it indicates Troubleshooting Action Required This indicates an illegal value in the CPU s
52. message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Patient Standby Patient High Paw insp or Paw exp gt 3 cmH20 when Non silencable connected Detection bias flow set to 3 min air or O2 if Air Audible in Standby and not available and exhalation valve set Monitoring states to 6 cmH20 for 3 seconds When placed in Standby state either by the user or after power up the ventilator will Suction patient Paw exp 3 cmH20 for approx maintain a bias flow so as to detection 1 second detect if a patient has been Or attached to the circuit This Paw exp 0 5 cm H20 for approx functionality alerts for an 1 second inadvertent attachment of the Or patient without the user Or Exp Flow lt 1 min for 1 second actuating ventilation The Standby menu shall be displayed with the highlight on Start Ventilation when alarm is initially activated Was patient connected during standby state If yes this is a user error If no Remove all tube connections from vent If alarm persists check exhalation pressure port and exhalation valve housing Calibrate Flow control valves Calibrate airway pressure transducers e Using the Service App and occluded circuit set 3 l min flow and set 6 cmH20 on exh Valve Ensure both Insp and Exp pressure sensors read 6 3 cmH20 Open circuit and verify pressure is 2 cmH20 Check replace zero valves Replace appropriate pressure sensor board Replace appropriat
53. screw for the arm mount bearing remove the display arm cover Lm Position the DU as shown Arm vertical e DU horizontal Release the DU Verify that the DU does not sag from its own weight Push down slightly atthe front of the DU e The DU should remain in place Verify that the DU can be tilted without excessive force Adjustthe upper pivot as necessary Adjust 9 29 Engstr m Carestation 9 6 2 Adjust lower 9 30 pivot 9 6 3 Adjust arm bearing Position the DU as shown Arm forward Upper and lower pivots in line horizontally DU vertical Release the DU Verify that the DU does not sag from its own weight Push down slightly at the top of the DU e The DU should remain in place Adjustthe lower pivot as necessary Position the DU as shown above Arm forward Upper and lower pivots in line horizontally DU vertical Move the DU side to side s Verify that the DU can be moved without excessive force and that it remains in place with slight sideways pressure Adjustthe bearing as necessary Adjust E dei IE Verify that the DU can be raised and lowered without excessive force Adjust 08 07 1505 1018 000 9 Repair Procedures 9 7 Removing a compressor from the cart In routine cases the compressor can be serviced without removing it from the cart Refer to the EVair03 Air Compressor Techn
54. seat area and the force applied by the piston releasing exhalation flow as necessary to maintain balance The proportional solenoid controls the exhalation sealing pressure within a range of 0 to 100 cm H50 Software control provides continuous oscillatory movement dithering of the exhalation valve to minimize static friction effects i Exhalation Flow Sensor 22 15 mm Male Female 22 15mm Male Female Immediately upstream of the exhalation valve is a tap for the expiratory pressure transducer 17 and its associated zeroing valve The expiratory pressure tap is continuously purged with 35 ml min of air to ensure that exhaled condensate does not occlude the tap The air flow is established from the regulated Air supply using a fixed orifice pneumatic resistor 18 Downstream of the exhalation valve is the expiratory flow transducer 19 In principle the transducer is similar to a hot wire anemometer A wire having a large temperature to electrical resistance relationship is placed in the flowstream The wire is kept at a constant temperature using a Wheatstone bridge circuit The current necessary to maintain the resistance of the sensor portion of the bridge is a function of the flow through the sensor At the output of the flow sensor is a flapper type check valve 20 that prevents gas from being drawn in through the expiratory valve and minimizes patient rebreat
55. the system and compatible with installed subsystem hardware Download All Downloads all software subsystems Since downloading all the subsystem software can take an hour or more you should normally choose Download New to install only the updated subsystem software or software required for newly installed subsystems Software Download Status Software Download Current New Download New Subsystem SW Rev SW Rev Status Front Panel Cntl XX XX XX XX Power Monitor Bd XX XX XX XX Vent Monitor Bd XX XX XX XX Vent Control Bd XX XX XX XX Dsply Unit BIOS XX XX XX XX Dsply Unit App XX XX Dsply Unit Fonts XX XX XX XX Download All Loading XXXX XXXXXXXXX XXXXX K K ok ck ck K ok ok ok K ok K SE K K ok e e ok ke 8 10 08 07 1505 1018 000 8 Software Download and Diagnostics Notes about downloading software If there is no Front Panel Control software installed in the system as would be the case when the display units control board is replaced the Service Application automatically downloads the Front Panel Controls software at startup During the download the two display unit LEDs will flash and the display speaker will sound an alarm tone to indicate that Software Download is proceeding To ensure that all software versions on the system are compatible the end result of Download All or Download New will be the same The software loaded on the machine will exactly match what is on the card Be sure to have the
56. to bleed down the pressure 5 Setthe system switch to Standby 9 3 Accessing chassis components Most of the EC components are mounted to a two tier chassis that slides out of the housing for access to the internal components The pneumatic and related Vent Engine components are mounted on a manifold that occupies the lowertier of the chassis To access the pneumatic components the entire manifold assembly can be removed from the chassis The electrical and related circuit board components occupy the upper tier Electrical components on the Vent Engine connectto the Ventilator Control Board VCB and the Ventilator Monitor Board VMB through a single two connector harness To diagnose the operation of the EC while still disassembled the components Vent Engine circuit boards Display Unit can be arranged and reconnected with existing harnesses A separate Display Unit Cable can be used as a service tool to make the connection between the Chassis and the Display Unit less restricted 9 4 08 07 1505 1018 000 9 3 1 To remove the chassis from the housing 9 3 2 To remove the Vent Engine from the chassis 1505 1018 000 08 07 Topreventthe housing from tipping over when If applicable remove any patient circuit Remove the Exhalation Valve The chassis Disconnectthe Display Cable from the Loosenthe four captured mounting screws at Slide the chassis out of the housing 9 Repair Procedures the
57. to correct a faulty connection to the speaker Service is required to replace the CPU battery Reconnect the speaker if possible Replace the HPDU CPU board if speaker connection can not be corrected Replace the battery on the HPDU CPU board Reload software and check out the system NOTE RTC date time error Battery may be weak Service is required to replace the CPU battery Replace the battery on the HPDU CPU board Reload software and check out the system Some system failures can result in a High Priority alarm displayed Message What it indicates Troubleshooting Action Required VCB VMB Fail This usually indicates a software failure Report this error along with the machine logs to Technical Support Reload software If problem persists replace the HPDU CPU board 1505 1018 000 08 07 7 15 Engstr m Carestation 7 16 08 07 1505 1018 000 1 Troubleshooting 1 5 Troubleshooting the Display HPDU Symptom Resolution System will not boot from external Compact Flash card during software installation process 1 Verify that the Compact Flash card is properly inserted 2 Insert a backup Compact Flash card 3 Open the HPDU and verify that the external Compact Flash card carrier socket 1009 5961 000 is properly seated Replace external Compact Flash card carrier socket 1009 5961 000 Replace HPDU main PCB of Display appears mostly
58. value is gt 65 000 DAC counts this message comes up This results in maximum flow limited to whatever is the highest flow point in the calibration table 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine system is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Check for a weak or restricted gas supply pressure Can t Pressurize Value During Paw transducer check the breathing circuit could not reach 33 cmH50 During Relief Valve check the breathing circuit could not reach 30 cmH50 During Exh Valve Cal Check the exp pressure does not stabilize within 0 1 cmH20 within 12 seconds Value max exp pressure achieved 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine system is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Can t Pressurize1 Value During 1st half of Low Pressure leak check the breathing circuit could not reach 34 cmH 0 Value max exp pressure achieved 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine system is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control
59. valves Recal if necessary Can t Pressurize2 Value During 2nd half of Low Pressure leak check the breathing circuit could not reach 25 cmH20 Value max exp pressure achieved 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine system is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Checking Supply Press1 During FCV calibration the source and integrity ofthe gas supply compressor or wall supply is being tested None normal operation 1505 1018 000 08 07 1 41 Engstr m Carestation Message in Calibration running field Troubleshooting Checking Supply Press2 During FCV calibration the source and integrity None normal operation ofthe gas supply compressor or wall supply is being tested Checking Supply Press3 During FCV calibration the source and integrity None normal operation Value ofthe gas supply compressor or wall supply is being tested Value measured supply pressure psi Checkout Aborted Checkout Aborted None Checkout Done Checkout Done None Ci Value Intermediate value in low pressure leak check None for information only compliance calculation Disabling normalization invalid leak Leak value measured by checkout is greater than 0 5 Lpm expiratory flow sensor normalization is b
60. 0 hPa 29 mmHg Plimit 100 cmH20 20 mbar 2 kPa 20 hPa 15 mmHg 100 cmH20 20 mbar 2 kPa 20 hPa 15 mmHg 100 cmH20 20 mbar 2 kPa 20 hPa 15 mmHg Insp Pause 0 0 0 Rise Time 100 ms 100 ms 100 ms 100 ms Trig Window 25 25 25 Trigger 2 l min 0 03 1 s 1 l min 0 02 1 5 0 5 I min 0 0081 s 2 l min 0 03 1 s Bias Flow 3 l min 0 05 l s 2 1 min 0 041 8 2 l min 0 04 I s 3 min 0 05 l s End Flow 25 25 25 Low Fi02 44 44 44 High Fi02 56 56 56 Low MVexp 2 l min 0 03 1 s 1 l min 0 02 1 5 0 2 l min 0 003 1 s High MVexp 10 l min 0 16 I s 5 l min 0 08 l s 0 4 I min 0 007 l s Low TVexp off off off High TVexp off off off Low RR off off off High RR off off off Low Et02 off off NA High Et02 Off 8kPa 60 mmHg Off 8 kPa 60 mmHg NA Low EtC02 396 3 kPa 23 mmHg 396 3 kPa 23 mmHg NA High EtCO2 896 8 kPa 60 mmHg 896 8 kPa 60 mmHg NA Wave Field 3 Vol Volume Vol Volume Vol Volume Digit Field Compl Pulmonary Mechanics Compl Pulmonary Mechanics Compl Pulmonary Mechanics Split Screen None None None Alarm Volume 4 10 3 3 3 08 07 1505 1018 000 4 3 Calibration menu
61. 10 4 External components front view as ds sms sd ba dau ninine I 10 8 10 5 External components rear view sosesereserererererrrrrrrr reser rr rer rr rest 10 9 10 6 Display arm mounting hardware cece eee eee 10 10 10 Display arm assembly 5 doses er Re e Rs 10 12 10 8 High Performance Display Unit HPDU sisiesesssrrsrrr reser rr reser rr rr ens 10 14 10 9 Display Unit DU oe eni e exime stena ekaa Ur RR Ee ER daw engi 10 16 10 10 Mainrenelosure eXxtemal pcnans n prr si seen nde a Rd reg mea 10 18 10 11 Main enclosure internal ses se rici sn ue se Aude dn ee II 10 20 10 12 Vent Eniglne se iioa seed mened ed ren ver RDS Ed CG er NR 10 22 10 13 Outlet manifold Seis cn teorie x ttc rae I puris nej pote sim Stn rre 10 24 10 14 Inlet manifold en n cee ds Ry hh E EX RE E EE IUS 10 26 10 15 AC power cords eet e hera epar Ft re ec wae epe aaa vaa 10 28 10 16 AC Inlet Outlet Components 0 cece eee eee a 10 30 VOGT ECA pr 10 32 10 18 Mod le rack itx tnr rtr eth ehe xh heeh rex IR RE ER EEES 10 34 10 19 Compressor sese eye ee hb eR Enn ep ac EY ee ee ea 10 35 10 20 Feature Options axuceese iR RR EDPERE RE ERE T UE RE RU E 10 36 10 2 1 Key BIDIGDel a soda era den con ca sada epi n aon m ient e Bano esos s datei 10 37 11 Schematics and Diagrams Appendix A 1 1505 1018 000 08 07 Engstr m Carestation X 08 07 1505 1018 000 In this section 1505 1018 000 08 07 1 In
62. 1018 000 08 07 Ground 6220 to 4440 8 23 Engstr m Carestation 8 7 2 VMB outputs The VMB Outputs group controls items that can be turned on or off Items whose default state is On initially have a checkmark in the checkbox For items whose default state is Off the checkbox is initially unmarked Function Default Exh Valve Pwr Opens closes the exhalation valve opens when checked Not checked Safe Valve Opens closes the safety valve from the VMB Not Energized energized when checked checked 02 Sensor Off Turn oxygen sensor On not checked or Off checked Not checked Exh Flow Sensor Turn exhalation sensor On checked or Off not checked Checked Pwr VMB Buzzer On The VMB turns the buzzer On Off Not checked VMB Reset Resets the VMB disables the watchdog when checked Not checked Exp Press Zero Opens Closes the expiratory pressure zero valve The Not Open valve will be opened when checked checked 8 7 3 VMB data The VMB Data group shows the reported values for Expiratory Flow and O concentration Rm eme emm Expiratory flow sensor measurement Measured oxygen concentration from the Oxygen sensor 8 24 08 07 1505 1018 000 8 Software Download and Diagnostics 8 7 4 Baro P cal Description Enter Pressure Enter the local barometric pressure in mmHg The Baro P Calibration will use this value to calibrate the barometric pressure transducer B
63. 1505 1018 000 08 07 S L ECService AppliGatlon rtm etie peace ea R stR GEH DR r R r AEA UR loa 8 2 8 1 1 Main menu and system information sssesesesesrrrrrrrrrrrrr rr rr rer rara 8 2 6 1 2 Power diagnosis nccciiecen e wea rehab ag RD WR ROSE RR 8 3 8 1 3 Power controller power diagnostics sssssessersrsrrrrerrsrrrrr rss rss ser sa 8 4 8 1 4 Display Unit Power Diagnostics 0 00 cece eee eects 8 6 8 2 Display DiaBnOStleS 43 j orsa cete rd meds e ea hex Ra exe Reps eh e EROS ES 8 1 8 9 Special FUNCIONS sa sacre orit eite a iR en e RD RR eR Ca UR Ee I BENA en 8 8 8 3 1 VIEWTEVISION OB ux oe cerit be etn eda ae oda Rs Ron e RR d 8 9 8 3 2 View PC Card install Og 1 1 reed une re rem eee ha ena 8 9 8 4 Software Download ssec nee ren ek ee emm emma a hr cR RR e 8 10 8 5 EC Service Application PC based a s s meine sa crimi tenien 8 12 8 9 1 Port SETUD 2 4 ce rere re keen tid eee RR e ede aer d 8 12 8 5 2 Main menu and system information sssesesesesrrsrrrrrr rer rr rr rr aret 8 12 8 6 VCB Diagnostics and Calibration sssseesseee eee eens 8 13 8 6 1 Serisirion sensors ss etc ke e e eene e rhone nm RR 8 13 8 0 2 VCB input sigfial late aos uen e e aeg aepo We t RR UA t qula RR D 8 14 8 6 3 VCB channel configurations lssseessssseeeem 8 15 8 0 4 VOB OUtDUtS ii seinna ba ede by RR RR ECR eee EX ge deka de REA En 8 16 8 6 5 Calibrations and tests ss ss sas a sunda me de RA ea ura RAA ER m 8 17
64. 2 10 13 Outlet manifold nnt mista x ttc orae NI tas dne de tn cn reel 10 24 10 14 Inlet manifold ene n her x E hr E ER RE Ree RIUS 10 26 10 15 AC power cords eese ee be reprae patr Dec rel ev e oen eye Pep aa 10 28 10 16 AC Inlet Outlet Components ccc cece eee I 10 30 TOC LE CIE heec reine mcus peque Monate BARR E dE E 10 32 10 18 Module ACK iso tr rtr ehh e oe fee RI RE ER ree 10 34 10 19 ComipreSSOr ec ner yere de eb c y pte Ge ER eoe eed ea 10 35 10 20 Feature Options 4 s8 dead nen ae RR Rex ER Eq EST Ue EY wit E 10 36 10 21 Key BIDIGDel ass ra era den con ec sate e cee cecus ie Ban KORA sa xe BR 10 37 10 1 Engstr m Carestation 10 1 Service tools 10 1 1 Software tools Item Description Stock Number 1 Service Application System Software 2 X 1505 8000 000 on Compact Flash card DU Note For Standard Display Unit DU 2 Service Application System Software 4 X M1079267 on Compact Flash card HPDU Note For High Performance Display Unit HPDU 3 Compact Flash Adapter PCMCIA carrier 1009 5874 000 Note For Standard Display Unit only DU 4 Windows based EC Service Application 1505 8001 000 5 Cable USB Converter to EC 1505 8587 000 6 Converter USB to RS 422 RS 485 includes USB cable 1505 8586 000 Male pin end Female pin end Port 3 9 pin DSUB 9 pin DSUB 9 pin 7 1 TX 8 2 TX 9 3 RX 6 4 RX 3 5 GND RS 422 RS 485
65. 2 sensorto plate 0 5 Nm 02 sensor plate to manifold 2 Nm Flow Transducer 2 Nm Inspiratory Valve Assembly Manifold 4 Nm s Inlet Manifold Sub assembly 4 Nm Outlet Manifold Sub assembly 4 Nm Pneumatic restrictor 1 Nm Pneumatic Restrictor Plate 2 Nm e Legris Fitting 4MM 4 nm Zeroing Valve mounting screws 0 07 Nm Pressure Sensor Assembly 1 Nm 9 8 08 07 1505 1018 000 9 3 5 To replace inspiratory valve assembly 1505 8502 000 Safety valve alignment tool 1505 1018 000 08 07 9 Repair Procedures Remove the chassis from the housing per Section 9 3 1 Remove the Vent Engine from the chassis per Section 9 3 2 Disconnectthe wiring harness from the inspiratory valve and safety valve actuators Remove the four M4 X 12 socket head screw that secure the assembly to the main manifold and remove the Inspiratory Valve assembly Install the new Inspiratory Valve assembly to the main manifold using four M4 X 12 socket head screws Torque 2 0 Nm Note On original main manifold without guide pins use Safety Valve Alignment tool 1505 8598 000 to align the inspiratory Valve Assembly to the main manifold Transfer or install the new Safety Valve Actuator M1114504 and Seal 1505 8600 000 to the new Inspiratory Valve Assembly Apply a small amount only enough to wet the surface of Loctite 271 to screw Torque 2 0 Nm 1 Perform Service level tests and calibrations Refer
66. 8 07 1505 1018 000 4 2 3 Ventilator Settings Menu Item 4 Installation and Service Menus Message text Values Timing Change timing setting I E Tinsp or Tpause Tpause is only available when Flow is set to On I E Tinsp Tpause Flow Select to use Flow settings or Insp Pause Tpause Timing is available when Flow is set to On On Off Modes with Backup Select Modes that will allow backup ventilation SIMV VC Yes No SIMV PC Yes No Bi Level Yes No CPAP PSV Yes No SIMV PCVG Yes No Previous Menu 4 2 4 Parameter Settings Menu Item Message text Values TV Based on humidifier or BTPS heated humidifier Change value calculations ATPD no ATPD BTPS C02 Numbers in CO2 partial pressure values Change humidity compensation type Dry Wet Previous Menu Return to previous menu 1505 1018 000 08 07 4 7 Engstr m Carestation 4 2 5 Defaults Menu Item Scroll Settings Message text Push ComWheel to scroll default settings Comments Default Type Select default patient type The selected type Adult Pediatric or Neonatal determines the Patient Type in the Select Patient Menu on power up The corresponding Adult Pediatric Neonatal or facility defaults are displayed forthe settings on power up If the setting is changed within a power cycle those settings remain for a specific Patient Type
67. 8 6 6 Neon tools a scen daner svea onda died tapana onini RA EE EE ALE eode nerd 8 18 8 6 1 Peep stabilit ams sc tr i sre ed Ida vu a RR By EP 8 19 8 6 8 Logging checko t results 23 2 gamed eh ii ern tr px nn cece 8 20 8 6 9 Logging Calibration RESUS seriis 0 cece eee teens 8 21 Sauls VMIB DIGBNOSUCS uoo vetat spa br Al due ec iui cna TOUR cha RETREAT AUR DE UD ate 8 22 8 7 1 VMB Channel Configurations sss ineine emnerne aaia m 8 23 8 7 2 VMB OUIDUTS i decre rey hte Dr ER Erk new asses vea E RR ER 8 24 8 153 NMB dala anoen tatnen adis Edu aed AARON BR 8 24 8 14 Baro Cal sess dee alex sour d x ean tee aae Xu a Ra 8 25 SAO ACULTODIC uds oi RE Ee hia Qux c exa mel de wae a D ICE 8 25 B 6 EEPTON cie pd do ERI 2k tite sale R IURE REUNIR RU AR Sea No dae oS 8 25 vii Engstr m Carestation 9 Repair Procedures 9 1 Circuit Board Replacement precautions sseseseerererrrrrrrrr rr rer rer rr rar res 9 3 9 11 Software download av s xe tr RE E XR EUR eve e Ux eA RE Ua 9 3 9 1 2 Required Calibrations 4 spe e pu n pret erg ad nore Re ERR ease 9 3 9 2 How to bleed gas pressure from the machine sssserereseserer sr rr rer rr rr rr rr res 9 4 9 3 Accessing chassis components ssssssssssssses I 9 4 9 3 1 To remove the chassis from the housing eee eee ers rss ser ss 9 5 9 3 2 To remove the Vent Engine from the chassis ssssssessessssrsrrsrer rss sr rss 9 5 9 3 3 To replace chassis mounted components ssseseresesrserr
68. ABCDXXXXX Card XXXXXXX System Version XX XX EV FPC EV PMB EV VCB EV VMB EV DUA EV DUB EV DUF Stock Number RevX Stock Number RevX Stock Number RevX Stock Number RevX Stock Number RevX Software Level Software Level Software Level Software Level Software Level Software Level Software Level File Name File Name File Name File Name File Name File Name File Name Front Panel Cn Serial Power Monitor XXXXXX Vent Control B Serial Vent Monitor B Serial Dsply Unit App Serial Dsply Unit BIO Serial Dsply Unit Fon 8 9 Engstr m Carestation 8 4 Software Download Selecting Software Download bring up the following information page ENTERING SOFTWARE DOWNLOAD MODE Power Diagnostics To return to Diagnostics turn On Standby switch to Standby and turn off AC mains switch in rear Display Diagnostics Wait 20 seconds then turn on power with the AC special Funetons mains switch and the On Standby switch Press ComWheel to continue with Download Software Download Note You can not return to the Diagnostic section of the service application after entering the software download section You must reboot the system to exit Software Download Entering software download brings up the Software Download menu Software Download Remarks Download New Downloads only new software versions not found on
69. C the EC must be powered On a Readonly access is available in normal operation mode b Controlled access is available in Super User or Service modes Connect a manual shut off valve to each gas supply inlet e Remove the inlet fittings from the EC and ensure o ring remains on the adapter Connect the shut off valve to the respective EC pipeline adapter Connect the removed inlet fitting to the respective shut off valve Close both shut off valves Connect pipeline supplies to each shut off valve 08 07 1505 1018 000 5 2 3 Vent engine debris 1505 1018 000 08 07 clean out Note 5 Service Tests and Calibration This procedure is needed only if The pneumatic system within the vent engine was serviced that is components were replaced or removed for evaluation e A gas inlet filter was replaced Clean out procedure 1 2 3 Open both shut off valves Verify that the inspiratory outlet is open to atmosphere not plugged On the VCB screen e Verify that the Air and 02 Flow Valves are energized M Set the Air DAC counts to 60 000 fully open e Set the 02 DAC counts to 60 000 fully open After 20 seconds s Close both shut off valves Pulse the Air and O2 flow valves 5 times for 5 seconds e Set the Air DAC counts to zero closed Set the 02 DAC counts to zero closed Closing the shut off valves before setting the flow DAC counts to zero bleeds pressure from the sy
70. Compressed gas enters the EC through an inlet fitting 2 that is particular to the institution s supply system The gas is filtered through a 2 micron particulate filter 3 and then a 0 5 micron coalescing particulate filter 3a as it enters the ventilator s pneumatic engine manifold The Air Pipeline Inlet filter assembly 3a is standard on all configurations The O2 Pipeline Inlet Filter assembly does not come standard but is an orderable option The 0 5 micron filter protects the EC from pipeline particle and liquid aerosol contamination A high pressure transducer 4 having a dynamic range of 0 to 8 3 bar 0 to 120 psi is tapped at the outlet of the filter This transducer monitors the adequacy of the supply pressure Failures of supply gas coupling hoses or an occluded filter are identified by the supply pressure transducer 4 High Pressure Transducer gj Bl qaa Primary Filter Standard Inlet Air gt 4 High Pressure Transducer 3 4 2 Inlet 3a Check Primary Filter Optional Valve Inlet O0 Next in the downstream path of flow is a check valve 5 The check valve prevents backflow from the EC that would possibly contaminate the supply pressure lines For example if the Ov supply were to be lost the check valve in the O channel will prevent Air from moving back into the O supply lines High Pressure Transducer Inlet Primary Filter Standard Inlet High Pressure Transducer
71. DA BR ia 8 13 8 6 1 SenSsini m Sensors usos rr RR RE RE ORE UE dE RET ER NR r 8 13 8 6 2 VCB Input signalilatch 2 n thea breath t reas 8 14 8 6 3 VCB channel configurations enesis iessen iinei RR delle ser iao 8 15 6 0 4 VCBOUPUTS i mnsan cod Dyr deem Ve re ance e Cet PAR Ri en RON 8 16 8 6 5 Calibrations arid tests rossis annona nanaii a ye kx xc X x aeta 8 17 8 6 6 Neon tools 152 sa ben dere en br ta RI gee epSEPrPRieR E QDPR ER e RR RIA 8 18 8 6 1 Peep stablillby ssatina dn rt Retiro e ase Ue an Rae sigue igen OR near 8 19 8 6 8 Logging checkout results 12 cesa xc noe e e nre he ne ioa 8 20 8 6 9 Logging Calibration Results 0 0 cece eee eee eee m 8 21 S f VMB DIaBRnOSUUOS 24 ie du dedu s ne ea Ru EN RO X e RE o aad 8 22 8 7 1 VMB Channel Configurations sorrisa iine ii innia eine eee 8 23 6 2 NMB OUIDUTS sects seks eee ch RA Ree eee naked daw ra wee ee 8 24 8563 VMB data rhe e qe e ue Re I Rea nea E Monae 8 24 8 54 Bara P Cal aad osse cine ead th aed by rebua eR dee E a d Red 8 25 8 1 5 AGULNOTIG uisi ecrire tun tee RR nter ace me ate ISAR gaye INUENIRI A 8 25 8 10 EEPROM P snieni TE anadhamesion tacande ao tase inten aaa de 8 25 8 1 Engstr m Carestation 8 1 EC Service Application 8 1 1 Main menu and system information Note 8 2 This section documents the EC Service Application that loads from a PCMCIA card DU or Flash Card HPDU and is used to download software orto run various diagnostic f
72. Engstr m Carestation Technical Reference Manual Engstr m Carestation Datex Ohmeda products have unit serial numbers with coded logic which indicates a product group code the year of manufacture and a sequential unit number for identification The serial number can be in one of two formats AAAX11111 AAAXX111111AA The X represents an alpha character indicating the yearthe product was manufactured H 2004 J 2005 etc land O are not used The XX represents a number indicating the yearthe product was manufactured 04 2004 05 2005 etc Engstr m Carestation ComWheel D fend SpiroDynamics Inview and EVair 03 are registered trademarks of Datex Ohmeda Inc Other brand names or product names used in this manual are trademarks or registered trademarks of their respective holders 08 07 1505 1018 000 Technical Reference Manual Engstr m Carestation This document is not to be reproduced in any manner nor are the contents to be disclosed to anyone without the express authorization of the product service department Datex Ohmeda Ohmeda Drive PO Box 7550 Madison Wisconsin 53707 a 2007 Datex Ohmeda Inc 1505 1018 000 08 07 Engstr m Carestation Important The information contained in this Technical Reference manual pertains only to those models of products which are marketed by Datex Ohmeda as of the effective date of this manual or the latest revision thereof This Technical
73. Every twelve 12 months s vinosi asien ss esee eh a hne 6 4 6 2 2 Every forty eight 48 months ssossssersssrssrsrer rar rr ns rr rs rr KR ARR ees 6 4 6 2 3 Every sixty 60 months 1 5 sein reece ee nnm ee BREAK ARNE wedi ee 6 4 6 3 JunAir EVairO3 Compressor Maintenance Model OF302 1 5DSA 6 5 6 3 1 Every twelve 12 months eais a aa atina ioa mana a EA Ie 6 5 6 3 2 Every 10 000 hours 223 Een nh re aae ek ex hr oe EA NE 6 6 6 4 Cleaning and sterilizing agents 0 cect eects 6 7 6 5 Battery capacity lest essct Rat eese p ele LA iw o m gin Reus 6 8 Do not perform testing or maintenance on the Engstr m Ventilator while itis being used on a patient Possible injury can result Items can be contaminated due to infectious patients Wear sterile rubber gloves Contamination can spread to you and others Obey infection control and safety procedures Used equipment may contain blood and body fluids 6 1 Engstr m Carestation 6 1 Engstr m Carestation Installation Checklist Serial Number Date YY MM DD Hospital Performed by 6 2 Note Check for shipping damage if any is noted take photos and notify the shipping carrer 1 Unpack and assemble the Engstr m Carestation Refer to Section 3 2 Remove protective tape from casters if applicable Cart only Make sure the power cord is fully seated in the power inlet connector s and the power cord clamp s is secure
74. Flow sensor error Exhalation Flow Sensor Comparison Medium TVexp TVinsp gt 0 3 TVinsp or 100 mL whichever is greater for 6 consecutive breaths Freeze vent engine volume compensation on first breath detected Using Service App verify Inspiratory flows match Expiratory flow within tolerance stated above Replace expiratory sensor as necessary Replace exhalation flow sensor board EFSB Fans require service Fan Fail Medium Fan Power Status Bits for main fan or vicor fan is low Check connections to fans Replace broken fan s 1 22 08 07 1505 1018 000 1 Troubleshooting Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Fi02 control error Air Flow Sensor Medium Loss of communication with Air Flow Use Open Loop valve mixture Communications Sensor control Failure Return to closed loop volume delivery control when cleared Check Error Log for Air O2 Insp Flow Sensor Supply Voltage f yes Disconnect vent engine harness at air flow sensor If voltage error stops replace air flow sensor Disconnect vent engine harness at O2 flow sensor If voltage error stops replace O2 flow sensor Disconnect vent engine harness at VCB If voltage error stops replace harness e f no Check connection to Air Flow Sensor Interchange harness connection between air and total
75. Note For systems with 4 2X software wait for the Select Patient menu to display then select Patient Setup menu 1 Access the Service Calibration menu 2 Connect a PCtothe system and startthe PC Application software Revision 1 58 or higher 3 Accessthe Log Calibration result to file area of the PC Service Application and select Find Log File 4 Selectthe desired folder from the PC hard drive to store Log Files Rename the file and select OPEN Suggested file naming convention Serial Number date cal log s If a Log File does not exist a message window displays Select Yes to create a Log File 5 Verify the file address location displayed in the Log Calibration results to file area and select Start Logging The Status Log window displays and indicates that the log has been initialized 6 From the EC Ventilator access the Calibrations menu from the Install Service menu e Select each calibration and follow the screen instructions to complete the calibrations e From the PC select Save Log from the Status Log window after calibrations are complete Select Ignore if Debug Assertion Failed message appears As each system calibration occurs the Status Log will display Pass or Fail If a calibration fails the log will record and display information about the exact parameter that failed This information is essential in determining the cause for calibration failure s Always include the Log file when iTrak
76. PMB Air supply Air Supply Pres High Low Air supply pressure gt 95 psig for more May result in FiO2 low alarm pressure high than 0 5 seconds Check air supply Disconnect sensor and verify output is zero gauge pressure nterchange harness connections on both supply pressure sensors f alarm follows the sensor replace supply pressure sensor If not check replace VMB Air supply pressure low Flow Wave 02 only Air Supply Pres Low Medium Air supply pressure 24 3 psig for more than 0 5 seconds Unitshuts down Air supply and delivers 10096 Oxygen Check air supply Disconnect sensor and verify output is zero gauge pressure nterchange harness connections on both supply pressure sensors e f alarm follows the sensor check sensor connector terminals Replace supply pressure sensor if necessary f not check replace harn ess If not harness check replace VMB 1505 1018 000 08 07 1 19 Engstr m Carestation Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Air temp high Temp High High Total flow sensor temperature gt 48 C Switch to 100 02 Air is turned off regardless of Flow Wave other alarm conditions for 02 only example 02 Supply Low When the condition clears the vent changes backto previous known good set O2 mixture Check inlet air temperature
77. PMB block diagram in Section11 PMB Power Management Board Atmel PMB Data 1 0 ATmega 128 CPU 150W Mains Power Supply V Checks Mains Bat Select Bat Charge Cntr Chassis Gnd On Standby and Safety Switch 1505 1018 000 08 07 2 12V 4AHr Batteries Power Entry Module Battery I amp ee AB 98 197 2 23 Engstr m Carestation 2 3 8 Motherboard The Engstr m Carestation can use one of two Motherboards backplane Original Motherboard 1505 5504 Port 2 15 pin or e Current Motherboard M1053184 Port 2 9 pin Note If replacement of the original Motherboard with a current Motherboard is required it is necessary to replace the original VMB 1505 5501 000 with the current VMB M1052980 The EC motherboard provides backplane connectivity for the VCB VMB and PMB assemblies in the EC chassis Analog circuits on the board provide current limiting for external peripheral connections to ensure that the EC s primary ventilation and monitoring functions are not compromised by excessive power draw In addition 10VA energy limit circuitry is provided for power connections within 20 cm of O exhaust outlets in order to mitigate the risk of an oxygen enriched fire The board features 6 external connectors that exit through a rear sheet metal interface Refer to section 2 3 3 gt e Patient Side Module PSM support connector Neonatal Flow Senso
78. Real Time Clock date or time registers This is an informational message Service is required to replace the CPU battery Service is required to correct a faulty connection to the speaker The RAM memory ECC circuitry is faulty This usually indicates a software BIOS failure Some of the DU hardware could not be initialized The software must be reloaded The software must be reloaded Set the system date and time manually to the correct values No action needed Replace the battery on the DU CPU board Reload software and check out the system Reconnect the speaker if possible Replace DU CPU board if speaker connection can not be corrected Replace the DU CPU board Report this error along with the machine logs to Technical Support Reload software If problem persists replace the DU CPU board Replace the DU CPU board Reload software and check out the system Reload Software and check out the system Some system failures can result in a High Priority alarm displayed Message What it indicates Troubleshooting Action Required VCB VMB Fail This usually indicates a software Report this error along with the machine logs failure to Technical Support Reload software If problem persists replace the DU CPU board 7 14 08 07 1505 1018 000 1 Troubleshooting 7 4 Troubleshooting Startup Screen POST messages for HPDU If the EC system encounters a problem at startup to w
79. Reference manual was prepared for exclusive use by Datex Ohmeda service personnel in light of their training and experience as well as the availability to them of parts proper tools and test equipment Consequently Datex Ohmeda provides this Technical Reference manual to its customers purely as a business convenience and forthe customer s general information only without warranty of the results with respect to any application of such information Furthermore because of the wide variety of circumstances under which maintenance and repair activities may be performed and the unique nature of each individual s own experience capacity and qualifications the fact that customer has received such information from Datex Ohmeda does not imply in anyway that Datex Ohmeda deems said individual to be qualified to perform any such maintenance or repair service Moreover it should not be assumed that every acceptable test and safety procedure or method precaution tool equipment or device is referred to within orthat abnormal or unusual circumstances may not warrant or suggest different or additional procedures or requirements This manual is subject to periodic review update and revision Customers are cautioned to obtain and consult the latest revision before undertaking any service of the equipment Comments and suggestions on this manual are invited from our customers Send your comments and suggestions to the Manager of Technical Communications Datex Ohme
80. To replace free breathing valve 0211 1454 100 eee eee 9 10 9 3 7 To replace Vent Engine assembly complete 00ee cece eee eee 9 11 9 3 8 To replace Vent Engine sub assembly sosesesessrrrrrrrrer eee eee eens 9 11 9 4 Servicing the Display UnIE DU 25 pex tre xxr neri exis 9 12 9 4 1 Remove the Display Unit issi sas svansen si kod eds Hon kk kinin ak i nerek 9 12 9 4 2 Disassemble the Display Unit 0 00 cece cece eee rr rr rr er rt 9 13 9 4 3 loreplace the CPU board irsi eser rrr RR Rem ee 9 14 9 4 4 To replace the LCD display cece sruk abanwa naa I 9 15 9 4 5To replace the backlights 0 cece eects 9 16 9 4 6 To replace the Inverters cece eect ence eee III 9 17 9 4 7 To replace the front enclosure or components 000ee cence eee 9 18 9 5 Servicing the High Performance Display Unit HPDU ssssssssesss reser reser rr rat 9 20 9 5 1 Remove the Display Unit sa sen s cece eee REA i neras 9 20 9 5 2 Disassemble the Display Unit ss sa sense case bea ahead eee BR 9 21 9 5 3 CPU Easier erar nude stund medicus i Unt Arne 9 21 9 5 4 To replacethe CPU board visi wi seccion enn 9 22 9 5 5 To replace the LCD display 154 sa a amd sele s sea IR esta r kate kB BEIRA 9 23 9 5 6 To replace the backlights i as tne rr Rer cee RR RE ETE nw nurs 9 25 9 5 7 To replacethe Inverters 3 s mssmmsss ism te e mmn 9 26 9 5 8 To replace the front enclosure or compone
81. VCB Backup mode active Backup Mode Active Medium Spontaneous breathing is insufficient or Display Unit failure System goes into Backup Ventilation mode Uses PCV mode and preset settings customer configurable Ensure the patient s spontaneous breathing and ventilatory support is adequate This alarm could be triggered by user errors regarding patient ventilation requirements See URM for details Check error log for communication errors or DU errors 1 20 08 07 1505 1018 000 1 Troubleshooting Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Cannot calculate FRC FRC invalid Low An FRC measurement was started for FRC or PEEP Inview but unable to be completed within the last 5 seconds Check end tital CO2 reading Ensure airway module is available and active Stop any active procedures Start a new FRC measurement Ventilation changes will stop an FRC measurement With gas module plugged in check power supply status LEDs on MIB from bottom of sheetmetal enclosure If any LEDs are lit then unplug module If LEDs remain lit replace MIB Replace gas module Check D fend CO2 or 02 wave instruction Check D fend Wait 30 sec and press Normal Screen to continue MGAS D fend Not Low MGAS communicates that the D fend The pump turns Off Connected gt 40 Sec module is not inst
82. XX 1505 1018 000 08 07 8 13 Engstr m Carestation 8 6 2 VCB input The VCB Input Signal Latch group shows the status of the displayed item signal latch Module Power FAIL Power to the monitor module has failed OK Module Power has not failed or module power has been manually shut off PSM Power FAIL Power to the Patient Side Module has failed OK PSM Pwr has not failed or PSM power has been manually shut off Insp Press Zero Valve ON Inspiratory pressure zero valve on OFF Inspiratory pressure zero valve off Aux Press Purge Valve ON Auxiliary pressure purge valve on OFF Auxiliary pressure purge valve off Exhalation Viv Open YES VMB is commanding the exhalation valve open NO The valve is not opened VMB Buzzer On YES VMB is activating the buzzer NO Buzzer is not active or is activated by the VCB Nebulizer Detected YES Nebulizer is connected NO Nebulizer is not connected Buzzer Detected NO Buzzer current is too low Valid when buzzer should be on YES Buzzer is sensed NA Buzzer not being activated Over Pressure Vcb Pld Rev 8 14 DETECTED Expiratory over pressure detected NOT DETECTED Over pressure was not detected Displays the revsion number of the Programmable Logic Device software 08 07 1505 1018 000 8 6 3 VCB channel configurations Auxiliary Press 8 Software Download and Diagnostics Th
83. age Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Neo flow sensor off Neo Flow Sensor Off Medium Neo flow sensor turned off in neo flow sensor setup menu Turn on neo flow sensor Remove airway module Neo module not compatible Low Any MGAS module is installed in the module bay during neo patient type Remove module or change patient type to adult or pediatric No neo flow sensor Calibrate neo flow sensor Check neo flow sensor and cable connections No Neonatal Flow Sensor Standby Low Both neonatal flow sensor hot wires reporting less than 20 ADC as measured by the VCB or VMB Replace neo flow sensor Replace neo flow sensor cable Replace VMB Repace motherboard Replace VCB Neo flow sensor Neo Flow Sensor High Neo TVinsp more negative than 3 mL Verify FMI 34014 has been reversed Reversed for 6 consecutive mechanical breaths completed on unit Calibrate neo flow sensor Check neo flow sensor and cable connections Replace neo flow sensor Replace neo flow sensor cable Replace VMB Repace motherboard Replace VCB No neo flow No Neonatal Flow High Both neonatal flow sensor hot wires sensor Sensor Therapy reporting less than 20 ADC as measured by the VCB or VMB Calibrate neo flow sensor Check neo flow sensor and cable connection
84. al does not cover the operation of every accessory refer to the accessory documentation for further information The EC must only be operated by authorized medical personnel well trained in the use ofthis product for patient ventilation in the intensive care environment It must be operated according to the instructions in the User s Reference manual The ventilator is designed to be used with infant through adult patients with a body weight of 5 kg or greater If the neonatal option is installed on the ventilator patients weighing down to 0 5 kg may be ventilated by the EC The EC is designed to maintain lung ventilation in the absence of spontaneous breathing effort as well as in support of the patient s existing spontaneous breathing effort Figure 1 1 Engstr m Carestation EC 1 3 Engstr m Carestation The system is designed for facility use including within facility transport and should only be used under the orders of a clinician It is designed to be operated on medical grade gases only and should never be connected to gasses that do not meet the medical grade requirements listed in Appendix A The Engstr m Carestation consists of three main components a display a ventilator unit and an optional module bay The display allows the user to interface with the system and control settings The ventilator unit controls electrical power nebulization and pneumat
85. al flow sensor zero check is in progress None Neonatal Zero Failed Neonatal flow sensor zero check failed because Verify proper gas supply no gas supply was detected Neonatal flow sensor zero check failed because the system was unable to achieve 4 Lpm 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Neonatal Zero Failed Neonatal flow sensor zero check failed because 1 Recalibrate neonatal flow sensor and rerun Expected 0 Flow the neonatal flow sensor measured non zero the Checkout flow while occluded 2 Clean or replace the flow sensor NFS Check 10 Lpm Neonatal flow sensor zero check failed because 1 Verify breathing circuit is connected and not system was unable to reach 10 Lpm prior to the leaking zero 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary NFS Check 30 Lpm Neonatal flow sensor zero check failed because 1 Verify breathing circuit is connected and not system was unable to reach 30 Lpm priorto the leaking Zero 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in plac
86. alled If Normal Screen is selected the DU commands MGAS D fend Not Medium the MGAS to start sampling Connected gt 60 Sec again Check that the sample tube is connected Check that the water trap is connected Check that the gas outlet is not blocked Replace Module Check sample gas out C02 or 02 waveform instruction Check sample gas out Wait 30 sec and press Normal Screen to continue MGAS Check Sample Low MGAS communicates continuous The pump turns Off Gas Out gt 40 Sec occlusion for 40 seconds If Normal Screen is selected the DU commands MGAS Check Sample Medium MGAS communicates continuous the MGAS to start sampling Gas Out gt 60 Sec occlusion for 60 seconds again Checkthe gas outlet Replace module Clean neo flow sensor Neo Flow Sensor Medium Neo flow sensor reporting flow gt 32 1 Contaminated min for 4 continuous seconds as measured by the VCB or VMB Calibrate neo flow sensor Clean neonatal flow sensor Replace neo flow sensor Replace neo flow sensor cable Replace VMB Repace motherboard Replace VCB 1505 1018 000 08 07 1 21 Engstr m Carestation Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Connect nebulizer Nebulizer not Connected Low Nebulizer disconnected while nebulization procedure is runnin
87. an Cal Paw Xducer Check Airway pressure sensor check in progress None Paw Xducer Check Airway pressure sensor check passed None Complete Paw Xducer Check Fail Airway pressure sensor check failed See previous message in status log for cause of failure Paw Xducer Check Fail Pressure sensors were not successfully zeroed Referto Section 7 1 1 and Section 5 2 8 PressureZeroCal Paw Xducer OK Airway pressure sensor check passed None 1505 1018 000 08 07 7 51 Engstr m Carestation Message in Calibration running field Troubleshooting Pressure not maintained value Q1 Value System was unable to maintain at least 25 cmH20 of pressure during relief valve check Intermediate value in low pressure leak check compliance calculation 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary None for information only Relief Pressure Value Safety Valve check Value back pressure generated from 75 L min flow thru open relief valve Must be less than 10 cmH50 to pass Refer to Section 7 1 4 Relief Time Value Safety Valve check Value time required to relieve pressure in system from 34 to less than 2 cmH 0 Must be less than 250 msec to pass Refer to Section 7 1 4 R
88. arameters Note No checking or replication occurs when the Service App is loaded The unit must be powered up with system software Do not replace more than one of these boards at a time without first powering up the unit Wait until the initial checkout menu appears to insure that the machine specific information has been replicated After replacing any ofthe following boards download the current software for the newly installed subsystem refer to Section 8 4 e Display Unit CPU board or a replacement HPDU Power Monitor board PMB Vent Monitor board VMB e Vent Control board VCB When repairs are complete if either the VMB orthe VCB were replaced the following calibrations must be performed before completing the checkout procedure If the VMB is replaced calibrate the airway pressure transducers refer to Section 5 2 8 calibrate the barometric pressure transducer refer to Section 8 7 4 If the VCB is replaced calibrate the airway pressure transducers refer to Section 5 2 8 calibrate the flow control valves 02 FCV Air FCV and Exhalation Valve referto Section 4 3 9 3 Engstr m Carestation 9 2 How to bleed gas pressure from the machine Before disconnecting pneumatic fittings bleed all gas pressure from the ventilator 1 Disconnect all gas supplies from the source Setthe system switch to On 2 3 Ensure that all pressures read zero 4 Establish a flow forthe affected gas
89. aro P Cal Starts the barometric pressure transducer calibration The calibration will Fail if nothing is entered in the Enter Pressure box Status Displays the results of the barometric calibration Passed or Failed 8 7 5 Acutronic Description SW Ver Software version of the acutronic Sensor software Exp Zero ADC Displays the Analog to Digital Counter zero value fro the expiratory flow sensor Exp Zero DAC Displays the Digital to Analog Counter used to zero the expiratory flow sensor 8 7 6 EEProm EEProm is used by manufacturing only 1505 1018 000 08 07 8 25 Engstr m Carestation 8 26 08 07 1505 1018 000 9 Repair Procedures In this section 9 1 Circuit Board Replacement precautions sss 9 3 9 1 1 Software download ss ss rari ansa ae nosa KR RE ARR n I 9 3 9 1 2 Required calibrations 222 sm snaps sne rne a mem ears 9 3 9 2 How to bleed gas pressure from the machine 00 cece cece 9 4 9 3 Accessing chassis components sssoseseesesersossrtsrror rr I 9 4 9 3 1 To remove the chassis from the housing cece eee ee eee 9 5 9 3 2 To remove the Vent Engine from the chassis ssssssessessssssrrsrr rer ser ss 9 5 9 3 3 To replace chassis mounted components sssesereserrserrrrrrrr ere eens 9 6 9 3 4 To replace vent engine components cece eect eee eee eens 9 6 9 3 5 To replace inspiratory valve assembly 1505 8502 000 9 9 9 3 6
90. at the PMB Diagnostics screen shows thatthe battery is fully charged Battery status will show Float Charge which indicates that the battery is fully charged Refer to section 8 1 3 Test procedure 1 Turn the system on and start a case simulated 2 Disconnect the power cord from the mains outlet 3 Allow the system to run on battery until it does an orderly shutdown 4 Reconnect the power cord to a mains outlet 5 Boot the system with the PCMCIA Service Application for the DU and Compact Flash for HPDU then access the Power Diagnostics function as detailed in Section 8 e On the Main Menu ofthe Service Application select Power Diagnostics On the Power Diagnostic menu select Power Control 6 Page 1 ofthe Power Controller Power Diagnostics screen shows the Date battery Tested the last full battery discharge until shutdown and the Discharge Time e If Discharge Time information is not displayed on the screen the test has not been run Repeat the test procedure e If the Discharge Time is greater than 60 minutes the batteries can be left in service for one more year e If the Discharge Time is less than 60 minutes both batteries should be replaced Note Charge battery for at least 8 hours before next use 08 07 1505 1018 000 In this section 1505 1018 000 08 07 1 Troubleshooting T 1 Troubleshooting Checkout Failures ssssssssseseee I 1 2 7 1 1 Pawtransducercheck rsi siii
91. ation 8 6 6 Neon tools VCB flows VMB flows 8 18 The Neon Toolbox group contains lists of counts flows and zero offsets related to the Neonatal Flow Sensor NFS x r VEB Flows VMB Flows Insp Flow Counts Insp Flow Counts Exp Flow Counts Exp Flow Counts Net Flow mL min Net Flow mL min r Static Zeroing Offsets Insp Offset F DAC Counts ADC Counts Exp Offset Insp Offset mo mo Exp Offset Insp Flow Displays the Inspiratory Flow counts Counts reported by the Neonatal Flow Sensor Exp Flow Displays the Expiratory Flow counts Counts reported by the Neonatal Flow Sensor Net Flow Net Flow is calculated from the counts mL min reported by the Neonatal Flow Sensor and the current zero point Inspiratory flow is displayed as positive net flow and expiratory flow is displayed as negative net flow Insp Flow Displays the Inspiratory Flow counts Counts reported by the Neonatal Flow Sensor Exp Flow Displays the Expiratory Flow counts Counts reported by the Neonatal Flow Sensor Net Flow Net Flow is calculated from the counts mL min reported by the Neonatal Flow Sensor and the current zero point Inspiratory flow is displayed as positive net flow and expiratory flow is displayed as negative net flow 08 07 1505 1018 000 Static zeroing Offsets 8 6 7 Peep stability Peep Stability 1505 1018 000 08 07 8 Softwar
92. ation flow sensor check failed See previous message in status log for cause of failure 1 42 08 07 1505 1018 000 1 Troubleshooting Message in Calibration running field Troubleshooting Exh Valve Cal Exhalation valve calibration in progress None Exh Valve Cal Chk Exhalation valve check in progress None Exh Valve Cal Chk Complete Exhalation valve calibration passed None Exh Valve Cal Chk Fail Exh Valve Cal Complete Exhalation valve cal check failed Exhalation valve cal check passed See previous message in status log for cause of failure None Exh Valve Cal Fail Exhalation valve calibration failed See previous message in status log for cause of failure Exp Flow Cal Expiratory flow sensor calibration in progress None Exp Valve Step Sweep Done Exp valve sweep complete None Exp Valve Sweep Exp valve step sweep in progress None FAIL No 120 Min Value Failed 120lpm flow Value Flow valve cal timeout never made itto 1 20 L min of flow during flow valve cal During FCV calibration could not hold 1 20 L min flow for 1 second before supply pressure drops below 30 psi Check for weak or restricted gas pressure supply If EC Service Application is connected insure flow valves and exhalation valve DAC counts are setto 0 and checked on Check for weak or restricted gas pressure supply Failed Supply Press Value During FCV calibration ina
93. ative pressure squeeze bulb to the INSPiratory outlet Plugthe EXPiratory inlet and the Auxiliary pressure port Paux Fully depress the squeeze bulb e The bulb should not fully inflate in less than 5 seconds e if not troubleshoot the inspiratory effort valve Disconnect the squeeze bulb from the INSPiratory outlet De energize open the inspiratory effort valve L1 Effort Valve Energized Setthe Air DAC 02 DAC and Exhalation DAC counts to zero INSP AB 98 087 08 07 1505 1018 000 5 Service Tests and Calibration Pneumatic High Pressure Flow El OMC ne Transducer Regulator Sensor Tes Test P wm m OA S N 2 T L Y oF st D 2 8 Z E H H E Auxiliary Pressure x idm rv Valve e P M i s Auxiliary Pressure WY Paux Purge Valve dj Inlet Manifold Vent Engine Manifold Outlet Manifold Inlet Inlet Fitter Filter OG o Optional Standard 0 Regulator Air Regulator 2 0 Test Port 0 fe Total Air Air Fi low Flow Flow Flow WEN gy Sensor Sensor Sensor Valve Atmosphere 4 4 0 Sensor AB 98 117 INSP 9 1505 1018 000 08 07 5 21
94. be the purge would most likely be turned on but for measuring laryngeal cuff pressures closed system the purge would be turned off The purge flow is established from the regulated Air supply using a fixed orifice pneumatic resistor 25 The relief valve 26 limits pressure in the auxiliary channel to less than 230 cm H50 The Aeroneb Professional Nebulizer System Aeroneb Pro by Aerogen Inc 27 is integrated into the EC This nebulizer is electrically connected to the EC and uses proprietary technology to produce a fine droplet low velocity aerosolized drug delivered into the breathing circuit The Aeroneb Pro is designed to operate in line with standard ventilator circuits and mechanical ventilators It operates without changing the patient ventilator parameters Engstr m Carestation 2 2 Electrical Operation 2 2 1 Display Unit 2 12 overview For a complete diagram of the electrical system refer to Figure 11 5 Electrical architecture in Section11 The EC includes 5 major processor control boards e Display Unit DU 1009 8289 000 or HPDU 1009 5933 000 Ventilator Control Board 1505 5500 000 Ventilation Monitoring Board Original VMB 1505 5501 000 or Current VMB M1052980 Expiratory Flow Sensor Board 1505 5507 000 Power Management Board 1505 5502 000 The EC includes 5 analog boards Motherboard backplane Original Motherboard 1505 5504 000 or Current Motherboard M1053184 Monitor
95. borted or failed the last known good calibration will be used To Manometer a S 08 07 1505 1018 000 5 Service Tests and Calibration 5 E eo E To Manometer a ibliary Pressure Transducer Relief s lj tue Paix Ee Inlet Manifold Vent Engine Manifold Outlet Manifold Inlet Inlet Fitter Filter 0 lt gt S O Air gt Optional Standard 02 Regulator Atmosphere AB 98 115 To Manometer 1505 1018 000 08 07 5 17 Engstr m Carestation 5 18 5 2 9 Verify operation of free breathing valve gt 0 N Ensure both manual shut off valves are closed Connect a negative pressure squeeze bulb to the INSPiratory outlet Fully depress the bulb a minimum of 10 times Onthe VCB screen e Verify that the measured Inspiratory Pressure is more positive than 3 cmH50 at all times e if not troubleshoot the free breathing check valve and the inspiratory effort valve Disconnectthe squeeze bulb from the INSPiratory outlet 08 07 1505 1018 000 5 Service Tests and Calibration 1
96. bsystem is communicating but the HW Rev or current SW Rev are not known the message Unknown will appear under the columns for those values If the HW Rev or current SW Rev are not known the download function will still be available As the software loads an activity bar at the bottom of the screen shows the download progress for each subsystem Note If a Communication Failure occurs during software download power down the system wait for 20 seconds and restart system Download complete When all the required subsystem software is downloaded the following message appears on the screen You must shut down the system to exit the download function DOWNLOAD IS COMPLETE Remove PCMCIA card Turn OFF AC mains switch in rear Disconnect power cord Note X After powering down the system be sure to wait at least 20 seconds before restarting the system 1505 1018 000 08 07 8 11 Engstr m Carestation 8 5 EC Service Application PC based 8 5 1 Port setup 8 5 2 Main menu and system information 8 12 This section documents the EC Service Application that run on a Windows based computer and communicates with the EC ventilator through the serial port Port 3 To enable communication between the EC and the PC Service Application the EC must be in the Service mode When the EC serial port is enabled the PC application presents a port setup menu that allows you to select a COM port for your PC Select the appropriate
97. cklights nei sc sis so sen se sk see ee nns dee se KA 9 25 9 5 7 To replace the Inverters s sssss s sen anamma ana fa eee nee III 9 26 9 5 8 To replace the front enclosure or components sssserrsererrer rss ere rst 9 27 9 6 Adjusting the display arm 3 ss seen bea ee ee dee RR IH 9 29 9 6 1 Adjust upper pivot 2 0 0 cece eect rr KR KRA RA RAKA 9 29 9 6 2 AdjustloWerplvOL rasere neo odorbexi miu e EEE fen n Rd e aon 9 30 9 6 3 Adjustarm bearing fac soeur re mtb rx pee en n enia 9 30 9 7 Removing a compressor from the cart ccc cece reser rr rr rr rer rr ere ns 9 31 9 8 Attaching Labels iiss eere ke tb m heec ree Rhen E Ir as exis 9 32 9 8 1 Key BID label satis adie cete e ciet e t an ea 9 32 9 8 2 Feature label use csse niea ntm ok ron RR Rae on Sista d a 9 32 viii 08 07 1505 1018 000 10 Illustrated Parts Table of Contents 10 1 SOMICC OOS c ue scott pepe spe n hes sace ROS CR URBI ER I d RO 10 2 10 1 1 Software tools eie emet RR ne RE rs ea KR AE BR RR 10 2 10 1 2 Manual shut off valves 20 es s gt sees tem Rer 10 3 10 1 3 Speclal tools imis aber d r ronem ave woes tmi Recte de ah UR 10 3 10 1 4 Leak test deVI CBS eo bb ere PER per aUi mm ceed Mog 10 4 10 1 5 Lubricants and Adhesives 0 ccc cece eee pirsa 10 5 10 2 ExhalationValve ass Mbly 3 e s ss x ete kem ee tme e redes 10 6 10 3 Neohatal FIOW SENSO ci e uis rite iter rre ei eire tre rne dels etin deed 10 7
98. compliance calculation Check gas supply source to see if it is too weak or restricted None for information only fCorrectedLeak Value Intermediate value in low pressure leak check compliance calculation None for information only Final Flow Achieved Value Final Rising Flow Achieved Value Flow value mLpm achieved during current Checkout step Flow value mLpm achieved during current Checkout step None for information only None for information only fLeak Value Intermediate value in low pressure leak check compliance calculation None for information only Flow Cal Waiting for Sensiron Flow Diff Value Total flow sensor is being set up to read the proper gas for the current valve calibration Exhalation flow sensor check Value flow difference between insp total flow sensor and exh flow sensor mL min Must be less than 2090 difference Exp flow tot flow lt 0 20 tot flow None Refer to Section 7 1 6 Flow Too High Value During FCV calibration the FCV is leaking more than 1150 mL min Value leak in smL min 1 Run approximately 160 L min flow through the FCV to dislodge any debris that might be present on the valve seat seal 2 Recal Replace FCV Flow Valve Cal Complete Flow valve cal passed None Flow Valve Cal Fail Flow valve cal failed See previous message in status log for cause of failure Flow Valv
99. ction A WARNINGS 1505 1018 000 08 07 3 Checkout Procedure 3 1 Inspectthie System x axo ve ner tela x uh c pex eg TER oa br REESE Re 3 2 3 2 Automated CHECKOUL 35 aoa sisie P bon nas oe J RE RUE A ORE REON ane Ua RR RUD 3 2 3 3 Bachlighttest 1a adsense ea ona iu EG Ran RUN RU RE R XAR fede Run 3 3 3 4 Power fall re test 23 3 2 tke roba dcbet c RC n RODEO RD ER R 3 3 3 5 Electrical safety tests a sa sem en e pb ones tek ehh EES PX Rea aba eR Rd 3 4 After any repair or service of the Engstr m Ventilator complete all tests in this section Before you do the tests in this section Complete all necessary calibrations and subassembly tests Refer to the individual procedures for a list of necessary calibrations Completely reassemble the system If a test failure occurs make appropriate repairs and test for correct operation 3 1 Engstr m Carestation 3 1 Inspect the system Before testing the system ensure that 3 2 Automated Checkout The equipment is not damaged Components are correctly attached Pipeline gas supplies are connected The casters are not loose and the brakes are set and prevent movement The power cord is connected to a wall outlet The mains indicator comes on when AC Power is connected The EC is equipped with an automated checkout Note If any of the Checks fail referto Section 7 1 Troubleshooting Checkout Failures to troubleshoot a specific failure To file a qual
100. ctions will still be available The message Flow Sensor Error will be displayed 1 5 Engstr m Carestation 7 1 7 Measure breathing circuit resistance 7 1 8 Air inspiratory flow sensor calibration check 7 1 9 05 inspiratory flow sensor calibration check 7 1 10 0 sensor test and calibration 1 6 The breathing circuit resistance is calculated from the amount of resistance created when 60 l min is flowing through the circuit It is calculated and displayed on the bottom of the screen It represents the resistance of 1 2 of the breathing circuit This check verifies that the Air Flow Sensor is functioning and compares the flow and temperature measurements with the total flow sensor at 30 l min Total flow and Air flow must be within 1596 and temperature must be within 9 C Failure can be due to lack of flow as well as flow or temperature differences Use the EC Service Application Section 8 5 to simulate the test and isolate the problem If this check fails all ventilator functions will still be available The message FlAir Control Error will be displayed This check verifies that the O Flow Sensor is functioning and compares the flow and temperature measurements with the total flow sensor at 30 l min Total flow and O2 flow must be within 1596 and temperature must be within 9 C Failure can be due to lack of flow as well as flow or temperature differences Use the EC Service Application Section 8 5 to simulate t
101. da Ohmeda Drive PO Box 7550 Madison Wisconsin 53707 A CAUTION Servicing of this product in accordance with this Technical Reference manual should never be undertaken in the absence of proper tools test equipment and the most recent revision to this service manual which is clearly and thoroughly understood Technical Competence The procedures described in this Technical Reference manual should be performed by trained and authorized personnel only Maintenance should only be undertaken by competent individuals who have a general knowledge of and experience with devices of this nature No repairs should ever be undertaken or attempted by anyone not having such qualifications Datex Ohmeda strongly recommends using only genuine replacement parts manufactured or sold by Datex Ohmeda for all repair parts replacements Read completely through each step in every procedure before starting the procedure any exceptions may result in a failure to properly and safely complete the attempted procedure ii 08 07 1505 1018 000 1 Introduction 1505 1018 000 08 07 Table of Contents unciae TET ii Technical Competence scu sot seine seca ceca aX ie ug Ee om dota RU abuse ii Table of Contents 14 Whatthis manual includes 12 t avs sne d egeo er nebat 1 2 1 2 User s Reference manuals 22 ed bensen ia het ar eh Ree a wae 1 2 TSCOMVERUONS USEC raea Fette i rara losa be suas trc MA n REOR CER ERA RE Sys GL 1 2 1 4 What is an Engstr m
102. dequate supply pressure Check gas supply source to see if it is too weak or restricted Failed Supply Press2 Value Failed Supply Press3 Value During FCV calibration inadequate supply pressure During FCV calibration inadequate supply pressure Check gas supply source to see if it is too weak or restricted Check gas supply source to see if it is too weak or restricted Failed Supply Press4 Value During FCV calibration inadequate supply pressure Check gas supply source to see if it is too weak or restricted Failed Supply Press5 Value Failed Supply Press6 Value During FCV calibration inadequate supply pressure During FCV calibration inadequate supply pressure Check gas supply source to see if it is too weak or restricted Check gas supply source to see if it is too weak or restricted Failed Supply Press7 Value During FCV calibration inadequate supply pressure Check gas supply source to see if it is too weak or restricted Failed Supply Press8 Value 1505 1018 000 08 07 During FCV calibration inadequate supply pressure Check gas supply source to see if it is too weak or restricted 1 43 Engstr m Carestation Message in Calibration running field Troubleshooting Failed Supply Press9 Value fCompliance Value During FCV calibration inadequate supply pressure Intermediate value in low pressure leak check
103. e Adult patient type GOST R Russian certification 1 13 Engstr m Carestation X 1 14 Indicates that the waste of electrical and electronic equipment must not be disposed as unsorted municipal waste and must be collected separately Please contact an authorized representative of the manufacturer for information concerning the decommissioning of equipment 08 07 1505 1018 000 In this section 1505 1018 000 08 07 2 Theory of Operation 2 1 Pneumatic Operation o rre rre mene er Ra Ra ees 2 2 2 1 1 Primary Gas Inlet sam or rte e ERR eG eka aed ed Ev YR ERR 2 3 2 1 2 Expiratory circuit ause nan niia ni awa aa a REE R EE KAE RE KR KBR BA ELAK RE 2 9 2 1 3 Associated circuits 1 54 ecrire I rene ry ea nna ER 2 11 2 1 4 Electronic micropump nebulizer 0 00 eect oda 2 11 2 2 Electrical Operation sr 2t m a edad ered xa e e weak Meade a ales 2 12 2 2 1 Display Unit OVerview cctv eee cies t e ehm merry RC raga 2 12 2 2 2 Softwareirequlrements 1244 2o e iR eR IR ERR REA DP RE REEXAKETE 2 13 2 2 3 DU system corinectioris cere osos ce vae ex ace x RR e EEA 2 13 2 3 System Connections ise ee dee stesse ee beatae XR wend nd dia 2 14 2 3 1 Display Unites zx eseczbiei sve R a reu tw bes ae wok ode REPE PES 2 14 2 3 2 High Performance Display Unit 0 00 cece esse dn der 2 15 2 3 3 Communication channels 0 rinra crr moet ene Ange eens 2 16 2 3 4 Ventilator Control Board VCB ieee cee eee eens 2
104. e 4 Verify gas flow from flow control valves Recal if necessary 7 48 08 07 1505 1018 000 1 Troubleshooting Message in Calibration running field Troubleshooting NFS Checkout Complete Neonatal flow sensor flow check completed None No Air Supply pressure for Air is below 30 psi Verify proper gas supply No Exp Flow Sensor Expiratory flow sensor is not detected by Verify proper installation of expiratory flow System sensor and exhalation housing Replace expiratory flow sensor if necessary No Gas Supply Supply pressure for both Air and O2 is below 30 Verify proper gas supply psi No Oxygen Supply pressure for O2 is below 30 psi Verify proper gas supply No Supply Pressure Supply pressure for both Air and O is below Verify proper gas supply 30 psi None No calibrations zero measurements or None checkout tests are running Normalized Flow Comparison Failed gt Target Value1 gt Value2 gt E Value3 Normalized expiratory flow and total flow are more than 1096 or 200 mL whichever is greater apart Value1 Normalization Table flow point being tested mLpm Value2 Inspiratory Flow measured by total flow sensor mLpm Value3 Expiratory flow measured by expiratory flow sensor mLpm 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4
105. e DAC Too Low FCV DAC counts went too low without a corresponding decrease in flow 1 Check flow sensor 2 Check for sticking valve 1 44 08 07 1505 1018 000 1 Troubleshooting Message in Calibration running field Troubleshooting Flow 02 Disagree Value1 Value2 During checkout the O sensor check failed 05 and Air flow set to 15 L min The 05 is calculated from the O and Air flow sensors and compared to the measured 05 from the paracube 07 sensor If the absolute difference between the O sensor and the calculated 05 from flow measurement is gt 5 O then the check fails Value1 0 measured from flow sensors Value2 0 measured from paracube eS Using the Service App create a flow of approximately 15 L min on the air channel 2 Verify Tot Flow Air Flow lt 0 15 Air Flow If not replace air pressure regulator 4 Using the Service App create a flow of approximately 15 L min on the O channel Verify Tot Flow O Flow lt 0 15 Os Flow If not replace O pressure regulator Recalibrate O sensor Repeat tests 2 and 5 If only one fails replace that channel s flow sensor If both fail replace total flow sensor 9 Replace O sensor Co o n O O fPressureDifference1 Intermediate value in low pressure leak check None for information only Value compliance calculation fPressureDifference2 Intermediate value in low pres
106. e Download and Diagnostics Insp Offset The inspiratory point of the DAC recorded Counts from the last static zero Exp Offset The expiratory point of the DAC recorded Counts from the last static zero Zero NFS When selected the system performs a static zero of the Neonatal Flow Sensor Insp Offset DAC Displays the inspiratory DAC zero offset Counts Counts movement from the last recorded static zero Updated by the dynamic zeroing Exp Offset DAC Displays the expiratory DAC zero offset Counts Counts movement from the last recorded static zero Updated by the dynamic zeroing Insp Offset ADC Displays the calculated inspiratory zero Counts Counts offset since the last DAC zero movement Updated by the dynamic zeroing Exp Offset ADC Displays the calculated expiratory zero Counts Counts offset since the last DAC zero movement Updated by the dynamic zeroing The Peep Stability menu is used by manufacturing only Engstr m Carestation 8 6 8 Logging checkout results 8 20 The ventilator does not have to be in the Service Mode to log the checkout results Power on the system and wait for the Patient Setup menu to display Note For systems with 4 2X software wait for the Select Patient menu to display then select Patient Setup menu e Connect a PC to the system and start the PC Application software Revision 1 58 or higher 1 Access the Log Calibration result to fi
107. e Download and Diagnostics The service application provides power supply diagnostics for the various circuit boards in the EC ventilator Selecting Power Diagnostics on the Main Menu brings up the following menu selections in the left hand frame and the instructions in the right hand frame Power Diagnostics Power Diagnostics Instructions Power Control Select a menu item Display Unit to see the power status gt Main Meru and measured voltages To troubleshoot a power problem start with the power controller and work forward Problem voltages are in red 8 3 Engstr m Carestation 8 1 3 Power controller power diagnostics Power Diagnostics Power Control Display Unit gt Main Menu There are two pages of diagnostics for the Power Controller Selecting Power Control brings up the first page of the Power Controller Diagnostics Page 1 of 2 Power Control Power Diagnostics Label AC Status 12Vdc Supply 3 3Vdc Supply 1 5 Vdc Supply Battery Connected Battery Status Battery Current Battery 1 Volts Battery 2 Volts Calc Battery Time Value Format Normal range OK Fail 11 70 to 12 30 3 201 to 3 399 1 45 to 1 55 Yes No Fail Bulk Chg Over Chg Float Chg Trickle Chg Discharge X XXX XX X 10 0 to 15 5 lt 6 0 FAIL red lt 10 T Chg yellow 10 15 5 Green XX X 10 0 to 15 5 lt 6 0 FAIL red lt 10 T Chg yellow 10 15 5 Green XX Date Battery
108. e VCB Channel Configurations group includes items that are measured from the VCB If the item is within the acceptable range OK is displayed next to the value If the item is out of the acceptable range FAIL is displayed instead Description Auxiliary pressure sensor measurement Format 20to 120 Inspiratory Press Inspiratory pressure sensor measurement 20to 120 Exhalation Volt Exhalation valve voltage 0 to 12500 Exhalation Current Exhalation valve current 0 to 815 02 Flow Current 02 Flow Valve drive current 0 to 198 Air Flow Current Air Flow Valve drive current 0 to 198 Nebulizer Power Nebulizer power when on Nebulizer power when off On 11500 to 12710 Off 0 to 500 Ambient Temp Ambient temperature near the valve drive circuits 0 to 55 Module Power 16 V Circuit breaker for module power 15200 to 16800 12 5V Supply 12 5 V Supply Voltage 12040 to 13330 5V Analog 5V analog supply voltage 4800 to 5200 6V Analog 6V analog supply voltage 5760 to 6240 6V Analog 6V analog supply voltage 6240 to 5760 5 5V Analog 5 5V analog supply voltage 5280 to 5720 Insp Flow Power 9V power supply for the O2 and Air inspiratory flow sensors 8530 to 9240 Total Insp Flow Pwr 9V power supply for the total inspiratory flow sensor 8530 to 9240 4 096V Ref Analog measurement of the
109. e flow control valve Paux high Paux High Low Paux gt 100 cmH20 De energize Paux purge valve if purge valve is energized until alarm condition clears Verify Paux port and any tubing that is connected to Paux port is not occluded when purge valve is energized purge is turned ON Zero Paux pressure sensor Usethe Service App to calibrate the Paux pressure sensor Section 5 2 8 Interchange Paux and Pexp connections If Paux high alarm stops replace Paux sensor If Paux High alarm continues replace VCB Paux sensor out Paux Sensor out of Low Paux sensor data out of range of range range Range 10 4095 mV Check replace harness nterchange Paux and Pexp connections If Paux alarm stops replace Paux sensor e f Paux alarm continues replace VCB Paux sensor out Paux Zeroing Error Low Range for zero pressure 631 968 mV If failed use previous known of range counts good offset value for Paux Verify Paux port and any tubing that is connected to Paux port is not occluded when purge valve is energized Purge is turned ON Zero Paux pressure sensor Check replace harness Interchange Paux and Pexp connections If Paux alarm stops replace Paux sensor e f Paux alarm continues replace VCB 7 30 08 07 1505 1018 000 1 Troubleshooting Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Pbaro sensor out Barometric Pressure L
110. eTotal Flow Sensor must be within 2596 of the expiratory neonatal flow absolute value 4 59 l min b The Total Flow Sensor must be within 15 of the inspiratory neonatal flow absolute value Use the EC Service Application to simulate the test and isolate the problem If this check fails all ventilator functions will still be available Volume control and monitoring will be more accurate if the neonatal flow sensor is calibrated in the following situations Before use during the Checkout procedure After replacing the flow sensor e After a power cycle tt Engstr m Carestation 1 2 Troubleshooting Vent Engine Leaks Note Use the EC Service Application PC based Section 8 5 while running all tests e Refer to Section 7 2 1 if the vent engine leak test fails Section 5 2 5 by either being unable to build 70 cmH20 pressure or if the leak rate exceeds 10 ml min s Refer to Section 7 2 2 if able to build inspiratory pressure to 70 cmH20 inspiratory pressure but unable to build 70 cmH20 of either expiratory pressure or auxiliary pressure To file a quality report or request technical assistance regarding a checkout failure create and include a Checkout log using the EC Service Application 7 2 1 Vent engine While retaining the leak test setup leaktest 4 ClosetheAirand O flow valves to limit the components tested remove the checkmarks from the boxes next to the DAC counts 2 Repeat the Vent Engine Leak Te
111. eaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from control valves Recal if necessary Neonatal Check Failed Downstream 1505 1018 000 08 07 The expiratory flow measured by the neonatal flow sensor is more than 2596 different from the flow measured by the total flow sensor Refer to Section Section 7 1 11 Engstr m Carestation Message in Calibration running field Troubleshooting Neonatal Check Failed Reaching 30 Neonatal Check Failed Reversed 920 System was unable to achieve 30 Lpm of flow during the Neonatal Checkout The neonatal flow sensor indicated reversed flow during the 20 Lpm check during Checkout 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Clean or replace neonatal flow sensor Neonatal Check Failed The neonatal flow sensor indicated reversed Clean or replace the neonatal flow sensor Neonatal Zero Failed 4 Lpm Reversed Q 30 flow during the 30 Lpm check during Checkout Neonatal Failed Neonatal flow sensor check failed because no Verify proper gas supply as supply was detected Neonatal Flow Check Neonatal flow sensor flow check is in progress None Neonatal Zero Neonat
112. easured the Failed message will apear across from Circuit Check e If the the Leak is less than 500 ml min and Compliance and Resistance can be measured a message will be displayed 3 Finally a correction based on the leak rate is applied to the compliance calculation and the information will be displayed 1 3 Engstr m Carestation 7 1 4 Safety valve The Safety Valve Relief test checks the ability of the Safety Relief Valve to relief and back pressure relieve all patient pressure on demand Failures include 1 Setthe Air 02 flow valve to 3 Ipm If at least 30 cmH20 cannot be achieved the test will indicate Fail but no alarm message is displayed Ensure supply gas is connected e A leak is indicated use the EC Service Application PC based Section 8 5 and the Low Pressure Leak test Section 7 2 to isolate and repair the leak Repeat check 2 Oncepressure stabilizes the Safety Relief Valve is opened If Pexp does not go to less than 2 cmH50 within 250 msec the test will indicate Fail and Relief Valve Failure message will be displayed Use the Service Application to simulate this test a Ifpressure remains significantly above 2 cmH50 e Listen for the valve actuator to click when actuating Check the connections to the safety relief valve Ensure seat seal interface is clean e Replace the Manifold Assembly b If pressure is only slightly above 2 cmH50 Re zero pressure sensors Ensure seat seal
113. edium MGAS communicates hardware failure C02 02 data RAM failure ROM checksum error Error in CPU EEPROM Error 02 preamp EEPROM Error in SSSboard EEPROM Voltage error or Lamp control failure Replace Module Module not Module Not Compatible Low The monitoring module detected is not compatible compatible with system software Remove and reseat Module Check software revision in the Service Log Replace Module Negative airway pressure Negative Pressure High Paw insp 10 cmH20 for greater than 50 continuous ms Latched alarm PEEP numeric changes to flashing red background Compare Insp and Exp sensor values using the Service App at zero and 100 cm H20 The Insp and Exp pressure sensors should match within 5 cmH20 while at O cmH20 true pressure and 10 cmH20 while at 100 cmH20 true pressure Calibrate pressure sensors Referto pneumatic troubleshooting section for testing zeroing valve Check harness connection on VCB and VMB Replace sensor as needed Neo flow sensor error Neonatal Flow Comparison System High Neo flow sensor comparison alarm active or neo total flow sensor comparison alarm active or neo exh flow sensor comparison alarm active See Neo flow sensor comparison alarm neo flow sensor comparison alarm or neo exh flow sensor comparison alarm troubleshooting 08 07 1505 1018 000 1 Troubleshooting Alarm mess
114. eing disabled 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Disagree Temp Value During Air or O2 flow sensor check air flow sensor temp is more than 9 C different than total flow sensor temp Value temperature difference C 1 If only one flow check fails replace that flow sensor 2 If both Air and Os flow check fails replace total flow sensor Disagree Tot Value1 Air Value2 During air flow sensor check air flow sensor is more than 1596 different than total flow sensor at a nominal flow of 30 L min Value1 measured total flow Value2 measured air flow Check regulator for oscillation Replace if necessary Downstream Flow Diff Value End Pressure Value Difference between flow measured by total flow sensor and expiratory wire of neonatal flow sensor during Checkout mLpm Exhalation valve check Value time required to relieve pressure in system from 34 cmH gt 0 to less than 2 cmH20 Must be less than 250 msec to pass None for information only Refer to Section 7 1 5 Exh Flow Sensor Chk Exhalation flow sensor check in progress None Exh Flow Sensor Chk Complete Exhalation flow sensor check passed None Exh Flow Sensor Chk Fail Exhal
115. elief Valve Chk Relief valve check in progress None Relief Valve Chk Complete Relief valve check passed None Relief Valve Chk Fail Relief valve check failed See previous message in status log for cause of failure Rising Flow Not Achieved Value Could not achieve minimum flow required fro step in Checkout Value maximum flow that was achieved mLpm 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Sensor Disagree Value During FCV calibration if the Air or O2 flow sensor disagree by more than 2096 of total flow or 1500 mL min whichever is greater the calibration will fail Value flow difference between Air or O5 flow sensor and total flow sensor 1 Check regulator for oscillation 2 If only one FCV cal fails replace that flow sensor 3 If both FCV cal fail replace total flow sensor Sensor Removed Exhalation flow sensor removed prior or during checkout Install exh flow sensor and rerun checkout Skipping CHECKOUT not in A Checkout command was received by the Vent Restart Checkout and allow it to allow it to checkout state Control Board VCB while it was not in the complete Checkout sate This is most often caused by a series of rap
116. eptable range for each sensor is 631 to 968 ADC counts Refer to Section 5 2 8 Zero Pressure Sensors Airway pressure sensors are currently being None zeroed Zero Pressure Sensors Airway pressure sensor zeros are complete None Complete 1 54 08 07 1505 1018 000 8 Service Diagnostics and Software Download In this section 1505 1018 000 08 07 8 1 EC Service Application iesu nrinn gun ate ea RR cp m nb ean REA ge 8 2 8 1 1 Main menu and system information sssesesesssrsrrrrrrrrr rr rr rr rer rara 8 2 8 12 POWEREIASNOSUCS adici sa tope dU ERROR aan ee dra reto ue ER CA RU REOR da 8 3 8 1 3 Power controller power diagnostics 0 0 0 0 cece cece 8 4 8 1 4 Display Unit Power Diagnostics 0 00 cece reser rer rr rr rer er ers 8 6 8 2 Display Diagnostics sssssssssssssseeIIRIRH Hn 8 1 5 9 Special FUNCIONS sx tnt ea Oed oe exe rao REN Ra a e mad dna NE 8 8 8 3 1 View revision IOS cci eee rin Enea Sog waned at Eo Pn a od 8 9 8 3 2 View PC Card lnstallIgg s ssa nies nhi RO RD Re RR Eie bag dd 8 9 8 4 Software Download 3 x xr dre FE EY HCRREREX D Means PER x 8 10 8 5 EC Service Application PC based sum cece cece eee eee ene 8 12 8 5 Ti Port Setup 2s d lara renar eldo pee d Gee eL E vIP EG arr f on pea VIA 8 12 8 5 2 Main menu and system information sssesesesesrrsrrrrrr rr rr rr rr rer et 8 12 8 6 VCB Diagnostics and Calibration 2 4 ss s n esi died mee h sanii KJ KR BRE
117. ero pressure 631 968 mV counts If failed vent uses previous known good offset value for Paw insp Zero Pinsp pressure sensor Check replace zeroing valve Check replace harness Interchange Paux and Pinsp connections If Pinsp alarm stops replace Pinsp sensor f Pinsp alarm continues replace VCB P02 sensor out of range 02 Supply Pressure Low Sensor Out of Range Out of range 02 supply pressure sensor data Range is 195 to 4760 mV Check O2 supply Disconnect sensor and verify output is zero gage pressure nterchange harness connections on both supply pressure sensors e f alarm follows the sensor check sensor connector terminals Replace supply pressure sensor if necessary e f not then check replace harness f not harness then replace VMB 1505 1018 000 08 07 1 31 Engstr m Carestation Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Pressure sensor Paw Cross Check High Paw exp Paw insp gt 10 cmH20 for failure more than 100 ms Verify Pexp port is not occluded e Check airway pressure transducer calibration s at 0 50 and 100cmH20 Calibrate if necessary Check replace zeroing valve s Check replace harness Check replace pressure transducer s Check replace VCB or VMB Primary audio Alarm Confirm Error High If the DU detects a speaker curren
118. et a hold of it from the back Slowly pry the window from the enclosure Om A W N e Place the front enclosure face down on a flat surface taking care not to damage the encoder 6 Remove any remaining residue from the mounting area clean with isopropyl alcohol T Remove the inside protective material from the front of the window 8 Peel the front outside frame of the release liner 9 Lowerthe window straight down in the enclose noting the notch in the window and the matching nub on the enclosure 10 Before seating the window position it in contact with the bottom and right sides of the frame see arrows so that the larger gap between the window and the enclosure is atthe top and left edges as viewed from behind 11 Remove the protective film from the back side of the window 08 07 1505 1018 000 Toreplace a membrane 1 switch and keypad 6 T 8 9 Repair Procedures Remove the screw that attaches the grounding strap to the enclosure Prythe membrane switch and keypad from the enclosure Remove any remaining residue from the mounting area clean with isopropyl alcohol Remove the backing from the membrane Be sure to remove the small backing below the flex cable For the lower membrane remove the protective film from the IRDA window Insertthe flex cable and ground strap through the slot in the enclosure Ensure that all ofthe ground strap passes through the slot and does not remain
119. eve proper flow during 1 Verify FCV is opening to give flow Should be exhalation valve calibration atleast 2 L min If no flow replace FCV Set at 4 L min Barometric Chk Barometric pressure sensor check in progress None Barometric Chk Complete Barometric Chk passed None Barometric Chk Fail During Barometric pressure check barometric pressure sensor and calculated baro pressure from set altitude differ by more than 20 of calculated baro pressure Refer to Section 7 1 2 Calibrating Flow Valve Calibrating Flow Valve None Can t Achieve 80cmH20 Exhalation valve calibration can not generate 80 cmH 0 pressure in the breathing circuit 1 Verify flow gt 1 L min from FCV Recal if necessary 2 Verify breathing circuit is connected and not leaking 3 Verify low pressure vent engine system is not leaking 4 Verify clean exhalation housing seat seal Replace parts as necessary 5 Verify power to exhalation valve actuator Check replace harness Replace VCB NO 7 40 08 07 1505 1018 000 1 Troubleshooting Message in Calibration running field Troubleshooting Can t Establish Pressure Flow Can t Extrapolate Table During Checkout step unable to achieve 8 Lpm with which to attempt to reach 34 cmH20 During flow valve calibration if a weak or restricted gas supply pressure requires the 140 or 160 L min points to be extrapolated and the calculated
120. ew Vent Engine sub assembly Refer to Section 9 3 4 Connect the new Vent Engine assembly harness to the VCB and VMB Note Do not install Vent Engine assembly into chassis until all tests and calibration in Step 6 have been completed 6 T 8 9 Perform Service level tests and calibration Refer to Section 5 2 Install Vent Engine Assembly into the chassis Refer to Section 9 3 2 Install chassis into housing Refer to Section 9 3 1 Perform Super User calibrations Refer to Section 5 1 1 10 Perform Automated Checkout Refer to Section 3 2 Engstr m Carestation 9 4 Servicing the Display Unit DU Note The item numbers appearing in parenthesis in this section referto items in the parts list in Section 10 9 The fan filter 26 and the access door 27 to the PCMCIA interface can be replaced with the Display Unit in place To replace the filter slide the filter capsule 27 downward to remove it from the Display Unit To service other components of the Display Unit you must first remove the Display Unit from the machine 9 4 1 Remove the The Display Unit attaches to the pivot arm with screws that are accessible under the Display Unit pivot covers 1 Remove the pivot arm covers on each side of the upper pivot e The pivot covers are held in place by three tabs in the locations shown by the arrows Slide a thin blade between the cover and the pivot housing to release each tab 2 Raise the DU so that
121. f the Air Flow Valve O2 Flow Valve and Exhal Valve tests Zero Pressures Zeros the Inspiratory and Expiratory pressure sensors Exh Flow 02 Sensor Exhalation flow sensor zero Runs the Paracube O2 sensor test Valve Sweep Runs the Valve Sweep calibration Low P Leak High 02 Leak Runs Low Pressure Leak Test Runs High 02 Pressure Leak Test 02 Leak w o filter Displaysthe calculated vent engine high pressure O2 leak without a filter 02 leak w filter 02 Flow Valve Leak Displays the calculated vent engine high pressure O2 leak with a filter Displays calculated vent engine high pressure O2 Flow Valve leak High Air Leak Runs High Air Pressure Leak Test Air Leak w o Filter Air Leak w Filter Displays the calculated vent engine high pressure Air leak without a filter Displays the calculated vent engine high pressure Air leak with a filter Air Flow Valve Leak Displays calculated vent engine high pressure Air Flow Valve leak Leak Result Log Calibration results to file The measured leak from the last Low Pressure High O2 and High Air leak tests Enter file name example D testlog1 log Find Log File Searches for a log file that already exists Start Logging Stop Logging Updates selected log as calibrations are completed Note The current log overwrites previous entries Turns off the calibration log Engstr m Carest
122. f Flow waveform Flow Yellow White and Volume digits and trend Green Red or Blue 02 Change color of 02 waveform digits Yellow White and trend Green Red or Blue C02 Change color of CO2 waveform Yellow White digits and trend Green Red or Blue Volume Change color of Volume waveform Yellow White digits and trend Green Red or Blue Paux Change color of Paux waveform Yellow White digits and trend Green Red or Blue Previous Menu Return to previous menu 4 5 Engstr m Carestation Units Menu Show Alarm Limits Time and Date 4 6 Menu Item Message text Values Paw Change Paw unit kPa cmH20 Flow Change Flow unit l min or l s C02 Change CO2 unit 96 kPa or mmHg Height Change height unit cm or in Weight Change weight unit kg or Ib Energy Expenditure Change EE unit kcal d or kJ d Altitude Change altitude unit m or ft Gas Supply Pressure Change gas supply pressure unit psi kPa or bar Exit Turn power off to exit menu and save settings Show Alarm Limits Select Yes to show alarm limits in digit fields Yes or No Menu Item Message text Hour Set Hour a am p pm Minutes Set Minutes 0 59 Zero seconds Set seconds to zero Day Set Day 1 31 Month Set Month Month Year Set Year XXXX Clock Format Set Clock Format 12 or 24 hours 12 or 24 Previous Menu Return to previous menu 0
123. fect checkout or system while in use Note If both the Auxiliary and Expiratory pressure is low itis possible that both restrictors are partially plugged or both circuits have leaks Therefore it is best to troubleshoot each pressure circuit as an individual problem If the Expiratory pressure is lower than the Inspiratory pressure 1 Remove the Exhalation valve and plug the Exhalation Pressure opening on the front panel Repeat the test a If pressures equal the problem is from the Exhalation valve housing or the seal located between the Exhalation valve and the front panel b If not continue Before removing restrictors shut off supply valves and open flow valves to bleed system pressure build up 1 Remove the restrictor and reinstall the restrictor access cover Repeat the test a If pressures equal install a new restrictor and repeat the test b If not or if the test fails with the new restrictor continue 2 Checkthefollowing seals onthe individual components in the order listed replace components as needed and repeat the test Restrictor cover gasket Expiratory pressure zero valve gasket o o o Expiratory pressure sensor o ring d Outlet manifold o ring 3 Ifthe test fails replace the following components in the order listed a Expiratory pressure sensor assembly b Outlet panel assembly c Main manifold assembly 08 07 1505 1018 000 1 Troubleshooting If the Auxiliary pressure is
124. flow sensor If problem stays with sensor replace sensor If alarm follows harness check replace harness If harness is OK replace VCB Fi02 control error 02 Flow Sensor Medium Loss of communication with O2 Flow Use Open Loop valve mixture Communications Sensor control Failure Return to closed loop volume delivery control when cleared Check Error Log for Air O2 Insp Flow Sensor Supply Voltage f yes Disconnect vent engine harness at air flow sensor If voltage error stops replace air flow sensor Disconnect vent engine harness at O2 flow sensor If voltage error stops replace O2 flow sensor Disconnect vent engine harness at VCB If voltage error stops replace harness e f no Check connection to O2 Flow Sensor Interchange harness connection between O2 and total flow sensor If problem stays with sensor replace sensor If alarm follows harness check replace harness If harness is OK replace VCB FRC series FRC series terminated Low Set 02 is gt set FRC 02 and user Alarm is removed upon state stopped decreases the set 02 during a series change or when new series is interval with the last 5 seconds initiated Or Set 02 is set FRC and user increases the set 02 so that FRC O2 would be gt 10096 within the last 5 seconds Verify correct settings Restart series Internal power PMB DC DC Fail Medium AC supply is OK but batteries are being failure d
125. g Re connect Nebulizer Replace Nebulizer cable Replace Nebulizer head Replace Nebulizer board Controls frozen Need service Front Panel Com Fail High Display CPU board fails to send life tick for greater than 10 seconds DU to allow power off confirmation even in Therapy The Power lock popup will not appear Look for physical damage to the keypad If damaged disconnect the internal keypad cable e Ifthe unit powers up with no failures indicated replace the membrane switch assembly e If failure still exists disconnect each of the the remaining keypad connections one by one until the failed component is located Replace the failed component e If failure still exists with all keypads disconnected replace the CPU board Display fans failed CPU Fan Speed Fail CPU Overheat Medium Medium CPU fan speed less than 2500 RPM 50 of nominal speed Temperature reading of either DU thermistor 60 C Verify fan connection Verify fan is not spinning while powered If not then replace fan Replace DU CPU board Exp flow sensor failure Exhalation Flow Sensor Communications Failure High Failed communications with exhalation flow sensor Use open loop pressure control Check harness connection between VMB and exhalation flow sensor PCB Replace exhalation flow sensor PCB Replace VMB Exp
126. gh exceeds 75 C possible Paw Wave Instruction Check fan filter Check main fan filter Check replace fans Check error log power diagnostics for underlying causes such as fan failure indicators or voltage range errors Verify ambient is 40 degrees C Replace PMB 1505 1018 000 08 07 7 37 Engstr m Carestation Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Volume delivery Total Flow Sensor High Out of range total flow sensor data Return to closed loop volume error Communications Or delivery control when cleared Failure Loss of communication Check Error Log for Total Flow Sensor Supply Voltage If yes Disconnect harness at flow sensor If voltage error stops replace flow sensor Disconnect vent engine harness at VCB If voltage error stops replace harness e f no Check connection to Total Flow Sensor Interchange harness connection between air and total flow sensor Ifthis alarm stops replace total flow sensor If this alarm persists check replace harness If harness is OK replace VCB 1 38 08 07 1505 1018 000 7 7 Troubleshooting Service App messages 1 Troubleshooting The VCB Service App screen includes a Calibrations and Tests section Section 8 6 5 This section includes a field Calibration Running that displays messages while a test is in progress Some messages indicate
127. h the Relief Valve and Exhalation Valve tests fail and the leak rate is less than 2000 counts the most likely problem is with the Pexp Sensor not returning to zero Usethe Service Application to apply 34 cmH50 of pressure until stable then release the pressure using either the Exhalation Valve or the Safety Relief Valve The Pexp value must return to less than 2 within 250 msec If not re zero and repeat or replace the Pexp sensor 3 If only this check is failing a Use the Service Application to verify at least 4 l min is generated by the FCV If not Recalibrate the FCV Replace the FCV b Removethe Exhalation Valve Assembly and ensure the Voice coil shaft is clean and dry and moves freely without binding c Replace the Exhalation Valve Assembly d Replace the Voice coil assembly If this check fails all ventilator modes will still be available The Exhalation Flow Sensor Calibration test compares the Exhalation Flow Sensor output to the Total Flow Sensor output at 10 l min If the Expiratory Flow Sensor is within 2096 of the Total Flow Sensor the test passes and an Expiratory Flow normalization table is created to compensate for up to 1096 of this discrepancy 1 Ifonly this test fails replace the Exhalation Flow Sensor 2 Ifthe Airand or O2 Inspiratory Flow Sensor calibration checks also fail use the Service Application to determine the accuracy of the Total Flow Sensor If this test fails all ventilator fun
128. he VCB is a Motorola Coldfire V4 CPU powered assembly that collects information from all EC system sensors some indirectly from the VMB and controls all actuators necessary to effect ventilation delivery The VCB computes and supplies all ventilation sensor monitoring data for display on the DU If there are alarms to be generated based on this monitoring data the VCB notifies the DU to post the appropriate alarm message and audio sequence The VCB observes the DU s response to ensure that the alarm is adequately presented To control ventilation the VCB accepts ventilation parameters from the DU Measured data waveform and numeric is also sent to the DU from the VCB This data flow occurs on the 38 4 Kbaud RS 422 communications link VCB DU Data 1 0 The VCB also communicates directly with the VMB every 1 ms receiving expiratory flow expiratory pressure and O sensor data on the 921 6 Kbaud RS 422 interface VMB Sensor Data 0 Barometric pressure data is also received from the VMB but at a lower data rate The following sensor information is acquired directly by the VCB e Air Flow Temp sensor through the RS 232 cable interface 200 Hz 02 Flow Temp sensor through the RS 232 cable interface 200 Hz Total Flow Temp sensor through the RS 232 cable interface 200 Hz Inspiratory Pressure sensor via a differential analog signal 12 bits 1000 Hz Auxiliary Pressure sensor via a differential analog signal 12 bit
129. he inverter Remove the two Nylon screws B that hold the inverter to the backplate 2 3 4 Slide the inverter out of the sleeve and disconnect it from the CPU harness C Reassemble in reverse order The front inverter The rear inverter 08 07 1505 1018 000 9 5 8 To replace the front enclosure or components To replace the window 1505 1018 000 08 07 9 Repair Procedures Disassemble the Display Unit following procedures in the previous sections to the point where you have removed the mounting plate assembly from the front enclosure If you are replacing the front enclosure you can transfer the encoder 12 assembly to the new enclosure but you must build up the replacement enclosure with a new window 11 new membrane switches right side 14 lower 15 left side spacer 16 new keypads right side 17 lower 18 left side blank 19 new EMC gasket 10 If you are replacing a keypad or a membrane switch you must replace both items 11 a 16 19 14 17 12 Nub 15 18 Place the front enclosure face up on a flat surface Press down on one corner of the window to free it from the enclosure Work your way around the window until you can get a hold of it from the back Slowly pry the window from the enclosure o A W N e Place the front enclosure face down on a flat surface taking care not to damage the encoder 6 Remo
130. he previous menu item 3 Push the ComWheel to enter the adjustment window or a submenu 4 Tum the ComWheel clockwise or counterclockwise to highlight the desired selection 5 Push the ComWheel to confirm the selection 6 Select Normal Screen or push the Normal Screen key to exit the menu and return to the normal monitoring display Select Previous Menu to return to the last displayed menu if available 1 10 08 07 1505 1018 000 1 Introduction 1 8 Symbols used in the manual or on the equipment gt CO A REF Sl theces Symbols replace words on the equipment on the display or in Datex Ohmeda manuals Warnings and Cautions tell about the dangerous conditions that can occur if the instructions in the manual are not followed Warnings tell about a condition that can cause injury to the operator orthe patient Cautions tell about a condition that can cause damage to the equipment Read and follow all warnings and cautions On power On for part of the equipment Standby Attention referto product instructions IEC 60601 1 Stock number Direct current Earth ground Equipotential connector Lock Variability Plus positive polarity Movement in one direction This way up 1505 1018 000 08 07 pes p eo A n rA bI Off power Off for part of the equipment Type B protection against electrical shock Caution ISO 7000 0434 Serial number Alternating current Protect
131. he test and isolate the problem If this check fails all ventilator functions will still be available The message FI02 Control Error will be displayed This test calibration will only be performed if both Air and O are connected The O offset is calibrated while flowing 30 l min of Air and the O gain is calibrated with 30 I min of O The test will Fail if either Air or O2 fail to achieve 30 l min flow Calibration is verified by flowing 15 l min Air and 15 l min O5 and comparing the sensor output to the calculated valve approximately 60 596 The test will Fail if O2 sensor is not within 596 ofthe calculated value If this check fails all ventilator functions will still be available Note This test is performed before the O inspiratory flow sensor calibration check 08 07 1505 1018 000 7 1 11 Neonatal flow sensor calibration 1505 1018 000 08 07 check Important 1 Troubleshooting This test verifies the accuracy of both the inspiratory and expiratory flow sensor circuits in the Neonatal Flow Sensor at 20 l min 1 During this stage the circuit is occluded The flow is set to 4 l min and the flow sensor should indicate O l min If not the test will indicate Fail and the next step will be skipped no message box will appear 2 A message box is displayed requesting removal of the circuit occlusion After detecting that Paw drops below 3 cmH20 flow will be set at 20 l min The exhalation valve is closed a Th
132. heck reseat all connections on all PC boards Check replace DU interface board Replace motherboard Replace PMB No battery PMB POST Failure Medium Power controller failed CPU selftests Note question mark at end of backup message and no battery status indicator on display Note in alarm message Cycle power Replace PMB No battery Battery Charge Fail Medium The system is powered on with a Refer to Section 8 1 3 for more backup Or battery current 21 3 amps information Standby Current High O System is in Standby and the charge current is gt 1 7 Amps Cycle power Check replace harness Replace Power Supply Replace PMB No battery Battery Fail Medium While bulk over or float charging any Battery status indicator backup battery is lt 10 5VDC short appears under clock Or Battery has been charging for gt 24h Refer to Section 8 1 3 for more while powered on sulfated information Or Voltage gt 16 5V during bulk or over charging and normal current 20 25 amps sulfated Cycle power Check replace harness Replace batteries 7 26 08 07 1505 1018 000 1 Troubleshooting Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting No battery Battery Missing Medium Any battery voltage is between 1 0 Battery status indica
133. here it cannot initiate system software a BIOS error message indicating the failure will be displayed Message What it indicates Troubleshooting Action Required ERROR This indicates a hardware failure Replace the HPDU CPU board CPU data cache fault ERROR This indicates a problem with the Check or replace the internal compact flash ERROR Program load failed CRC No bootable device available internal CF card This usually indicates a software file corruption card Reload the software and check out the system ERROR RAM memory error This indicates a hardware failure Replace the HPDU CPU board ERROR System reset ECXX xx XX ERROR System reset FFFF FF FF This usually indicates a software failure Indicates the HPDU lithium battery has lost contact with the holder or the battery is below voltage Report this error along with the machine logs to Technical Support Reload software If problem persists replace the internal flash card and reload software If problem persists replace the HPDU CPU board Replace the lithium battery if below rated voltage Install the software downloader card to restore system setups ERROR watchdog circuit failed This indicates a hardware failure Replace the HPDU CPU board NOTE Alarm speaker not detected Check connection NOTE CMOS battery is weak Please replace Service is required
134. hing in the event of a ventilator failure Located downstream on the patient wye is an optional Neonatal Flow Sensor 28 The sensing elements for the Neonatal Flow Sensor Subsystem consist of two hot wires each with its own drive circuitry and Wheatstone bridge The hot wires reside off board in a flow tube situated at the patient wye and 2 9 Engstr m Carestation 2 10 electrically act as variable resistors in each of the bridges The sensors hold a constant temperature at all times as they contain a linear resistance change with temperature The Neonatal Flow sensor is connected to the Ventilator Monitoring Board VMB through the Motherboard via Port 1 and a 2 meter long shielded cable detachable at both ends The other Wheatstone bridge resistors and all associated drive circuitry reside on the VMB As gas Air and Oxygen flows current through the hot wire elements increases These currents are converted to a voltage amplified offset with a voltage reference and converted to a digital value by the 12 bit ADC Because of the bidirectional nature of gas flow at the patient wye a post that is situated between the elements serves to shadow the downstream element and reduce the downstream signal By comparison of the individual signal levels of the two hot wire elements flow direction can be ascertained 08 07 1505 1018 000 2 1 3 Associated circuits 2 Theory of Operation Associated with the inspiratory and expiratory pressure
135. i s oe n e ARR 4 5 4 2 3 Ventilator Set liBs 1 2 nicer tex bie aizh xh eade xn n damon i RR na 4 7 42 4 Parameter SettiniBS uus eei rk hne m heeded ened awit aden sane ea 4 7 4 25 Defaults i cee y s LM 4 8 4 2 6 Factory Defaults ccelo eee e ehem rem rh erm m 4 10 4 3 CalibratiomiTienlis uus usce pan rx bre R3 ER E paa Eee a REFERT EA 4 11 Liens 4 12 4541 Configuration DOTT RESAN EE ERE EA ENARE 4 13 4 22 0 DUONSIKCY x cce teme ae ia OPE E Ree EE ad dx RR REUS 4 14 AAS Options LIST tesi me korr lorc rtm Rome etm ice arbem tu 4 14 4 4 4 Options Card ss svea eek eeu rent rh re m KR d 4 14 4 4 5 Copy Conflg ration iud uoti RI be LEY kd RERO PIERA Bl 4 15 AAG Service Log MENU 3 s stormen sn note eee s a Rd ree tee 4 16 4 4 7 Software Hardware version menu cece eee eee eee eens 4 17 4 4 8 Resetting feature option key codes 0 2 cece eee eee eee eee eens 4 18 4 1 Engstr m Carestation 4 1 Service and Installation menu structure This section describes the Service level functions that are part of the main software installed in the ventilator Section 8 Service Diagnostics and Software Download covers a separate service application that loads from a PCMCIA card and is used to download system software and run service diagnostics and other service tests Menu structure The Service menu structure has two levels which are password protected e Install Service super user e Service The Install Serv
136. ic gas flow to and from the patient The module bay allows the integration of various patient monitoring modules with the ventilator Optional accessories include an air compressor airway modules module bay support arm humidifier and watertrap mounting brackets auxiliary electrical outlets and a neonatal flow sensor 08 07 1505 1018 000 1 Introduction 1 5 Ventilator overview 8 910 11 12 000 00 AE 17 16 15 14 J lt w AB 98 011 1 Module bay optional 10 Expiratory inlet 2 Ventilator lock locks Ventilator unit item 6 to Cart item 3 11 Expiratory flow sensor 3 Cart 12 Gas exhaust port 4 Caster 13 Leak test plug 5 Dovetail rails 14 Exhalation valve housing latch 6 Ventilator unit 15 Water trap 7 Display 16 Auxiliary pressure port 8 Nebulizer connection 17 Inspiratory outlet 9 Exhalation valve housing Figure 1 2 Front view of the EC 1505 1018 000 08 07 1 5 Engstr m Carestation SSE N 1 15 14 ll 2 13 E 3 Goes 12 N FA 4 SS JE K S64 A sy GA EC FSE 3 11 B en 6 10 aH Jc H fach pA m DON VVA 0000000000099 oou LA CS AB
137. ical Reference manual 6189655 In situations where greater access to components is required the compressor can be removed from the cart for service AN WARNING To avoid personal injury two people are required to remove and install the compressor 1 Remove the trim pieces from the side extrusions Tap in screwdriver blade at base Pry to loosen 2 Remove the compressor mounting hardware from each side of the cart 3 Screw in a lifting handle service tool 5370055 into each side of the compressor Service Tool 5370055 4 With a person on each side ofthe cart liftthe compressor slightly and slide it forward out ofthe cart AN CAUTION To avoid tipping use care when moving the ventilator with the compressor removed from the cart 1505 1018 000 08 07 9 31 Engstr m Carestation 9 8 Attaching Labels 9 8 1 Key BID 1 If present remove the existing Key BID label from the back of the machine label 2 Cleanthe area with Isopropyl alcohol 3 Affixthe new Key BID label to the machine rr RR 1 Serr LISTAT Lee 9 8 2 Feature Use the feature label to attach FRC SpiroDynamics or Neonatal label Affixthe Feature Label holder to the front of the machine as shown Align the right edge of the label approximately 6 mm from the right edge of the outlet manifold Align the bottom edge ofthe label approximately 15 mm from the top edge of the outlet manifold 2 Affix the Feature Spec
138. ice level with super user password supports standard hospital preferences such as colors units ventilator settings and alarm defaults and access to the Calibration and Service menus The Service level with service password supports system configuration and provides access to the Service Log menu Follow the menu structure to access the various service screens e On the front panel ofthe Display Unit press the System Setup key to access the System Setup menu On the System Setup menu select Install Service to access with super user password the Install Service menu select Calibration to access the Calibration menu select Service to access with service password the Service menus Install Service Calibration Patient Setup Trends Setup 02 FCV Configuration Scroll Recent Screen Setup Display Settings Air FCV Neo Flow Sensor Ventilator Settings Exhalation Valve Error Log Setup Parameter Settings Backlight Test Copy Config Event Log Parameters Setup Defaults Gas Calibration Service Log 9 System Status Cal Flag Exit Alarm Log Install Service Calibration gt SW HW versions Normal Screen Previous Menu Copy Logs Service 3 Reset Logs Previous Menu Exit 4 2 08 07 1505 1018 000 4 Installation and Service Menus 4 2 Install Service Menu Super User Use the super user password to access the Install Service menu 23 17 21
139. idly requested Checkout starts and aborts without allowing Checkout to run in between 7 52 08 07 1505 1018 000 1 Troubleshooting Message in Calibration running field Troubleshooting Span Start Normalization Pressure transducer span calibration is in progress Expiratory flow sensor normalization is in progress None None Ti Intermediate value in low pressure leak check None for information only compliance calculation 72 Intermediate value in low pressure leak check None for information only compliance calculation Target flow not reached Flow remains greater than the target flow with 1 Verify breathing circuit is connected and not 300 the minimum flow command during Checkout leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Total Value1 02 Value2 During O flow sensor check O flow sensor is more than 1596 different than total flow sensor at a nominal flow of 30 L min Value1 measured total flow Value2 measured 07 flow 1 Check regulator for oscillation Replace if necessary 2 If only O flow sensor check fails replace O flow sensor If both Air and O flow sensor checks fail replace total flow sensor unbounded Qin Value Intermediate value in low pressure leak check compliance calculation
140. ific label in the square recesses in the label holder e install the labels starting with the right most available recess 9 32 08 07 1505 1018 000 In this section 1505 1018 000 08 07 10 Illustrated Parts 10 1 Servicetools cse hr Re x HER ik ra EET canes E SI ERE 10 2 10 1 1 SoftWare TOONS nare eden ep not atn ete dep D eiat fr ade 10 2 10 1 2 Man al sh t off valves 5 ses tenter 10 3 10 1 3 Speclalto0ls orem tree hrs i n Ro ho S de tn 10 3 LOA RAK TESUCOVICES asics stag RR qol epis nt eer pee dS Rp uento Heard vert ae 10 4 10 1 5 Lubricants and AdNESIVES s sm sees s see a Be dyker RE Ej Edel eee 10 5 10 2 Exhalatiomvalve dss mbly 524 prt bnt eene ee m e RR ra Red 10 6 10 3 Neonatal FIOW SENSO s dui tcn nt tcn meti ener entra reda 10 7 10 4 External components front VieW 1 2 cece eect II 10 8 10 5 External components rear view 0 0 cece cece eee II 10 9 10 6 Display arm mounting hardware cc cece see ee dee enee 10 10 10 7 Display arm ssembly se sc ss doses ss er ve Re mee Rem Ras 10 12 10 8 High Performance Display Unit HPDU 0 0 cece eee eee eee 10 14 10 9 Display Unit DU eere dandi BA en end sanity NER RAR AR BR BIR 10 16 10 10 Mainenclosure external 5 25 npe si m cred E PRSE REEF eR mn 10 18 10 11 Main enclosure internal ss ss ss snuva se Aude dn kk II 10 20 10 12 Vent ENGINE 442524 e deci pe ri bv RAS SR NINA Arr NR 10 2
141. ight The inverters sandwich the mounting plate and use it as a heatsink Follow the procedure in Section 9 4 4 to gain access to the inverters Replace one inverter at a time 1 Disconnect the backlight cable A from the inverter Remove the two Nylon screws B that hold the inverter to the backplate 2 3 4 Slide the inverter out of the sleeve and disconnect it from the CPU harness C Reassemble in reverse order The front inverter The rear inverter 9 17 Notes 9 4 7 To replace the front enclosure or components To replace the window 9 18 Disassemble the Display Unit following procedures in the previous sections to the point where you have removed the mounting plate assembly from the front enclosure If you are replacing the front enclosure you can transfer the encoder 12 assembly to the new enclosure but you must build up the replacement enclosure with a new window 11 new membrane switches right side 14 lower 15 left side 16 new keypads right side 17 lower 18 left side 19 new EMC gasket 10 If you are replacing a keypad or a membrane switch you must replace both items 11 cm 16 19 14 17 12 ERN QA SRF pomm nu 15 18 Place the front enclosure face up on a flat surface Press down on one corner of the window to free it from the enclosure Work your way around the window until you can g
142. ill show the test running on light 1 and then on light 2 If the display goes completely blank or flickers during the test one ofthe lights has failed Connect the power cord to a wall outlet The mains indicator on the front panel of the Display Unit comes on when AC Power is connected Set the system switch to On and Start a case Unplug the power cord with the system turned on Make sure the following message is displayed e On battery Connect the power cable again Make sure the alarm cancels 3 3 3 5 Electrical safety tests A WARNING X Make sure the system is completely assembled and that the power cords are connected as illustrated in Section 10 15 Make sure all accessory devices are connected to electrical outlets 1 Connectan approved test device for example UL CSA or AAMI and verify that the leakage current is less than Voltage Max Leakage Current 120 100 Vac 300 uAmps 220 240 Vac 500 uAmps 2 Makesurethatthe resistance to ground is less than 0 2 2 between the equipotential stud and the ground pin on the power cord 3 4 08 07 1505 1018 000 In this section 1505 1018 000 08 07 4 Installation and Service Menus 4 1 Service and Installation menu structure sssseseserrerrsrrerrr rr rr rr rer eens 4 2 4 2 Install Service Menu Super User esi sasse oas eu sa saa nn 4 3 42 1 Trends SEUD espcrn Paranda reet eee emere mem EE RR ERA exa rr EE 4 4 42 2 Display Settings eese niska ni ne mcr trc e m Rm
143. included in the following kits Item Description Stock Number Neonatal Upgrade kit with hardware components M1061589 FRC and Neonatal Upgrade kit with hardware components M10792676 SpiroDynamics and Upgrade kit with hardware components M1079272 Neonatal FRC SpiroDynamics and Upgrade kit with hardware components M1079274 Neonatal De OOOQOOOOO O AB 98 180 The 15 pin female D connector configuration Pin 3 relay common e Pin 10 normally open e Pin 11 normally closed Load current e Minimum 100 uA at 100 mVdc e Maximum 1 A at 30 Vdc e Relay isolated 1505 1018 000 08 07 2 21 Engstr m Carestation VMB Vent Monitor Board Circuit Power Atmel oe alve Drive ATmega128 Insp Effort Valve Control CPU Exh Valve Closed Safety Valve Drive UARTS Safety Valve On Off Exh Valve On Off 4 RS 422 VMB DU Data I O 38 4 Kb Exp Flow Infc Bd Exp Flow Sensor Bd Watchdog V Checks ADC MUX RS 422 VMB Sensor Data I O 921 6 Kb Buzzer Control Buzzer Sense Circuit Power Exp P Zero Valve 4 Expansion Signals AB 98 077 Original VMB Current VMB 505 5501 000 M1052980 2 22 08 07 1505 1018 000 2 Theory of Operation 2 3 6 Power The PMB is based on an Atmel Atmega 128 CPU The PMB performs power selection Management between power sources in the following order Boa
144. independent 4 096V voltage reference 4055 to 4137 1505 1018 000 08 07 Measurement of the analog ground at the A to D converter Engstr m Carestation 8 6 4 VCB outputs The VCB Outputs group controls items that can be turned on or off Items whose default state is On initially have a checkmark in the checkbox For items whose default state is Off the checkbox is initially unmarked Function Default Safe Valve Energized Opens Closes Safety Valve Not checked Effort Valve Energized Opens Closes Inspiratory Effort Maneuver Not checked Valve Nebulizer Enabled Enables Disables power to the Nebulizer Not checked Module Reset Resets modules residing in the module bay Not checked Module Power On Turns Module Bus power on off Not checked PSM Power On Turns Patient Side Monitor power on off Not checked Insp Press Zero Inspiratory pressure zero valve on off Not checked Aux Press Purge Auxiliary pressure purge valve on off Not checked Buzzer On Controls the buzzer On Off from the VCB Not checked Air Flow Valve Enables Disables Air flow valve Disabled while a calibration is running Checked Air DAC Set any DAC value from decimal 0 to 65535 forthe Air Flow Valve 02 Flow Valve Enables Disables O2 flow valve Disabled while a calibration is running Checked 02 Dac Set any DAC value fr
145. ing Module Power Supply Board M1052831 e 3 Airway Pressure Transducer boards 1505 5506 000 The Engstr m Carestation can use one of two display units e the original Display Unit DU e or the High Performance Display Unit HPDU The display unit handles most of the machine s user interface functions through the front panel controls and the LCD screen It is the primary interface to external peripherals The main components of the display include e An active matrix thin film transistor liquid crystal display A e The CPU board B e The System Interconnect assembly C The CPU board includes a host processor and three coprocessors to handle display front panel and monitoring interfaces 08 07 1505 1018 000 2 2 2 Software requirements 2 2 1505 1018 000 08 07 3 DU system connections 2 Theory of Operation The DU uses a PCMCIA interface to handle software upgrades and to load the diagnostics Service Application The DU is compatible with system software versions 3 X and lower The HPDU uses a Compact Flash interface to handle software upgrades and to load the diagnostics Service Application The HPDU requires system software version 4 X or greater The display unit is physically separate from the ventilator chassis connected through a single cable running through the display arm The display unit contains a CPU board based on the Elan SC520 processor A small daughter board DU Interface board provides a
146. ing Service App messages sasse cece cece 7 39 7 1 Engstr m Carestation 7 1 Troubleshooting Checkout Failures T 2 Note 7 1 1 Paw transducer check If the Automated Checkout Section 3 2 results in failures refer to the following sections to troubleshoot a specific failure Use EC Service Application PC based Section 8 5 while running all tests To file a quality report or request technical assistance regarding a checkout failure create and include a Checkout log using the EC Service Application The Paw Transducer Check can indicate a failure from four conditions 1 Inspiratory Pressure Sensor Zero Failure With the Inspiratory Pressure Zero Valve actuated raw counts from the Inspiratory Pressure Sensor must be between 631 and 968 if not test results indicate Fail and the Pinsp sensor out of range message is displayed Use EC Service Application PC based Section 8 5 to facilitate problem isolation Ensure proper connections s Remove the Inspiratory Pressure Zero valve If the Inspiratory Pressure Sensor values are between 631 and 968 counts replace the Zero Valve Replace the Inspiratory Pressure Sensor Board Replace the Vent Control board VCB Expiratory Pressure Sensor Zero Failure With the Expiratory Pressure Zero Valve actuated raw counts from the Expiratory Pressure Sensor must be between 631 and 968 if not test results indicate Fail and Pexp sensor out of range message is dis
147. interface is clean e fExhalation Valve Calibration Check also fails replace the Pexp sensor e Repeat check 3 Ifa flow of 75 l min creates more than 15 cmH50 pressure at Pexp sensor with the safety relief valve open the test will indicate Fail and Relief Valve Failure message will be displayed If 75 l min cannot be achieved the test will indicate Fail but no message will be displayed Use the Service Application to simulate this test e Check the connections to the safety relief valve e Replace the Manifold Insp Valve Assembly If this test fails no mechanical ventilation is allowed 7 4 08 07 1505 1018 000 7 1 5 Exhalation valve calibration check 7 1 6 Exhalation flow sensor calibration test 1505 1018 000 08 07 1 Troubleshooting The Exhalation Valve Calibration check sets flow at 4 l min as measured by the total flow sensor and the expiratory valve to 34 cmH20 Once stable it opens the Expiratory Valve and verifies that the exp Paw is less than 2 cmH20 within 250 ms 1 Cannot achieve 34 cmH 0 10 cmH20 pressure The test will indicate Fail but no alarm message is displayed Ensure supply gas is connected and device can achieve at least 4 Ipm at the 10 lpm calibration point see step 3a Calibrate the Exhlation Valve e A leak is indicated use the EC Service Application PC based Section 8 5 andthe Low Pressure Leaktest Section 5 2 4 to isolate and repair the leak Repeat check 2 If bot
148. ion flow sensor connection Replace Exhalation Flow Sensor Waranteed for 90 days Verify low pressure leak test passes Check replace interface PCB and flex circuit Check replace exhalation flow sensor PCB 1505 1018 000 08 07 1 21 Engstr m Carestation Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting No gas supply No Supply Pressure High O2 supply pressure and air supply Continue 100 gas flow of pressure pressure lt 24 3 psi for more than 0 5 whichever gas has the higher seconds pressure value at the onset of the alarm if both are equal use 10096 02 Check O2 and Air supply pressures Check replace harness between sensor and VMB Check error log for reference voltage errors Check replace VMB 02 sensor failure 02 Sensor Fail Medium Out of range 02 sensor Paracube data greater than 10396 or communication error Calibrate O2 sensor with Checkout ensure both Air and O2 gas supply are connected Calibrate O2 sensor with Service App ensure both Air and O2 gas supply are connected e Verify O2 Concentration sensor voltage error is not present in error log Check replace harness Check replace O2 sensor Check replace VMB 02 supply 02 Supply Pres High Low O2 supply pressure gt 95 psi for more pressure high than 0 5 seconds Check O2 supply Disconnect sensor a
149. is Chk Breathing circuit resistance measurement in None progress Measure Resis Chk Breathing circuit resistance measurement None Complete Measure Resis Chk Fail completed successfully Breathing circuit resistance measurement failed See previous message in status log for cause of failure Measured Resistance Value Resistance measured during Checkout None for information only Measuring PO 1 Minimum Flow not achieved Value P0 1 procedure in progress Could not achieve minimum flow required for step in Checkout Value maximum flow that was achieved mLpm None 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Neo Flow Sensor Cal Neonatal flow sensor calibration in progress None Neo Flow Sensor Cal Fail Neo Flow Sensor Cal Pass Neonatal flow sensor calibration failed Neonatal flow sensor calibration passed 1 Verify neonatal flow sensor is properly connected and properly occluded Recalibrate the sensor 2 Clean or replace neonatal flow sensor None Neonatal Check Failed 20 Lpm System was unable to achieve 20 Lpm of flow during the Neonatal checkout 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not l
150. ischarged On battery Check screw terminal connections and harness between AC DC power supply and PMB Check fuse F1 If not OK replace PMB Replace AC DC power supply 1505 1018 000 08 07 1 23 Engstr m Carestation Refer to Airway Modules Section 5 in the User s Reference manual Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Mixed gas temp Total Flow Temperature Low Out of range total temperature sensor Use air flow temperature for sensor error Sensor Failure data or loss of communication total flow sensor calculations including alarms If air flow sensor temperature not available use 50 C Check inlet air temperature e If comm Failure alarm is also active check harness connections With gas supplies disconnected and system temperature stabilized use Service App to check temperatures of air and total flow sensors If either reports temperature out of range 0 to 60 C replace that sensor Missed FRC missed Low Another procedure or condition Series continues only one scheduled FRC prevented the FRC series measurement was missed measurement from starting within the last 5 seconds Ensure airway module is available and active Stop any active procedures Start a new FRC measurement Ventilation setting changes will stop an FRC measurement Module fail No MGAS Sensor Inop gt XX M
151. ith the software hardware configuration to a text file on a PCMCIA card 08 07 1505 1018 000 4 Installation and Service Menus 4 4 7 Software Turn the ComWheel to scroll through the list box Hardware Push the ComWheel to return to the Service menu version menu System Information X Number A B C letter menu SW HW version System Information Running Hours XXXXX Software Release XX XX Model Code XXX Serial Number ABCDXXXXX Option Package XXX Options Code XXXXXXXXXXXXXXXX VCB Software Version XX XX VCB Hardware Version XXXX XXXX XXX REV A VCB Hardware Serial Number ABCXXXXX DU Software Version XX XX DU Hardware Version XXXX XXXX XXX REV A DU Hardware Serial Number ABCXXXXX VMB Software Version XX XX VMB Hardware Version XXXX XXXX XXX REV A VMB Hardware Serial Number ABCXXXXX PMB Software Version XX XX PMB Hardware Version XXXX XXXX XXX REV A PMB Hardware Serial Number ABCXXXXX BIOS Software Version MGAS Software Version X X MGAS Hardware Version GAS SW Pr XXXXXXX X MGAS Hardware Serial Number ABCXXXXX The MGAS information is only displayed when an Airway module is present 1505 1018 000 08 07 4 17 Engstr m Carestation 4 4 8 Resetting feature option key 4 18 codes a A WwW N 8 9 Power up the Engstr m Carestation and select Service Menu Options List Record the
152. ity report or request technical assistance regarding a checkout failure create and include a Checkout log using the EC Service application Section 8 6 8 Run the Checkout while the EC Service Application is running and select Log Calibration Results When in Standby the Patient Setup menu is displayed on the normal screen 1 2 3 4 3 2 Select Checkout Attach the patient circuit Occlude the patient wye Select Start Check The results appear next to each check as they are completed When the entire checkout is finished Checkout complete will appear and the highlight will move to Delete Trends If one or more checks fail select Check Help for troubleshooting tips 08 07 1505 1018 000 3 3 Backlight test 3 4 Power failure test 1505 1018 000 08 07 B 3 Checkout Procedure Select Previous Menu Checkout includes the following checks Paw Transducer Check Barometric Pressure Check Relief Valve Check Exhalation Valve Check Expiratory Flow Sensor Check Air Flow Sensor Check 02 Flow Sensor Check 02 Concentration Sensor Check Neonatal Flow Sensor Check if applicable Circuit Leak Compliance and Resistance Access the Calibration menu In the standby mode push the System Setup key e On the System Setup menu select Install Service 23 17 21 e On the Install Service menu select Calibration On the Calibration menu select Backlight Test Select Start Test The display w
153. ive earth ground Fuse Unlock Variability in steps Minus negative polarity Movement in both directions Warning dangerous voltage 1 11 Engstr m Carestation 1 12 Pneumatic inlet Electrical input Inspiratory port Electrical testing certification Serial port Module bay port Auxiliary pressure port No battery battery failure Silence alarms Hourmeter Pneumatic outlet Electrical output Expiratory port Inspiratory breath identifier Module data indicator Electronic micropump nebulizer Display signal input output Battery in use Bar indicates amount of battery power remaining Submenu Drain outlet 08 07 1505 1018 000 134 C co er X Air Heavy object Ethernet connection Autoclavable Authorized representative in the European Community Date of Manufacture Neonatal option in installed SpiroDynamics option is installed Pediatric patient type Manufacturer 1505 1018 000 08 07 YS 1 Introduction Pump USB port Network ID connection Datex Ohmeda proprietary port Not autoclavable Systems with this mark agree with the European Council Directive 93 42 EEC for Medical Devices when they are used as specified in their User s Reference Manuals The xxxx is the certification number of the Notified Body used by Datex Ohmeda s Quality Systems Maximum Functional Residual Capacity option is installed Neonatal patient typ
154. ively locking out the free breathing valve from the patient circuit Flow Valve Flow Sensor Ut lg 13 Total Flow O2 Sensor Flow Sensor Inspiratory Ay Effort SI OIG T i 12 le Free Breathing Check Valve 11 Next in the flow path is the O sensor 13 The sensor is used to monitor the O concentration produced by the combined O and Air flows The O sensor uses the paramagnetic principle oxygen molecules are attracted in magnetic fields to measure the oxygen concentration The sensor includes two nitrogen filled glass spheres mounted on a suspension containing a conductive coil that is located in a non uniform magnetic field When the system is disturbed by an impulse of current the suspension begins to oscillate inducing an EMF into the coil The oscillation period of the induced EMF is dependent on the partial pressure of oxygen surrounding the suspension As sample gas fills the sensor oxygen that is present in the sample is attracted into the strongest part of the magnetic field This congregation of O molecules alters the natural oscillation frequency of the suspension Calculations based on the difference between the oscillation period for an oxygen sample and that for nitrogen and readings from the absolute pressure transducer determine the measured O percentage 2 7 Engstr m Carestation
155. l Flow Flow Flow Valve Sensor Sensor AB 98 113 Engstr m Carestation 5 16 5 2 8 Calibrate This procedure calibrates the Inspiratory Expiratory and Auxiliary pressure airway pressure transducers transducer Note If Airis not available the O supply can be used to calibrate the pressure Zero and Span transducers The Service Application senses which supply is available and in step 5 activates the corresponding flow valve 1 2 3 Start up the system and enter the Install Service mode Verify that the ventilator passes the low pressure leak test Section 5 2 5 Attach the test setup to the EC as shown in the illustration below Connect a tee adapter to the INSPiratory outlet e Connect a short patient circuit tube from the tee adapter to the EXPiratory inlet Connect a pressure sensing tube from the Inspiratory tee to a manometer and to the Auxiliary pressure port Paux Open the manual Air 05 shut off valve Onthe VCB screen e Verify that the Exhalation Flow Valve is energized M e Verify that the Air Flow Valve is energized M e Select Start Paw Span 2 L min established through Air 02 flow valve Adjust the Span DAC Value Exhalation valve reading start at approximately 40 000 until the manometer reading equals 100 0 2 cmH50 At 100 cmH 0 select End Paw Span Close the manual Air 05 shut off valve Remove the test setup Note Ifthe span calibration is a
156. latest correct version of software before attempting a download to avoid inadvertent overwrites of newer software with an older version If duringthe Download New process the compatibility checker detects a newer version of software component on the system a Notice appears on the screen that asks you to confirm the downgrade Download All will download all compatible software from the card to the system without issuing a notice that newer version of software component may be on the system Download process The PCMCIA card includes only the latest software for each subsystem along with the diagnostic application As each subsystem software segment is being downloaded the following status messages note the state of each subsystem and the result of the download Busy System is running its application code not ready for download e Ready System is in its boot code ready for download CRCtest System is analyzing the download CRC Loading System is accepting download data Done Software download has completed successfully Fail Software download did not complete successfully A Fail message will require reloading of the software or repair of the system may be necessary Skipped Software download was bypassed Linked System is communicating but status is not yet known Not Compatible The software version on the PCMCIA card is not compatible with the subsystem If the su
157. lay Unit attaches to the pivot arm with screws that are accessible under the Display Unit pivot covers 1 Remove the pivot arm covers on each side of the upper pivot The pivot covers are held in place by three tabs in the locations shown by the arrows Slide a thin blade between the cover and the pivot housing to release each tab 2 Raise the DU so that it faces backwards 3 Disconnect the display cable A 4 Remove the four screws that hold the DU to the upper pivot B 9 20 08 07 1505 1018 000 9 Repair Procedures 9 5 2 Place the Display Unit face down on an anti static pad Disassemble the 1 Loosen L the four captive screws at each corner of the rear enclosure Display Unit 2 Liftthe rear enclosure slightly and pivot it away from the lower enclosure at the bottom side of the Display Unit 28 29 24 27 5 21 2 1 Atthis point you can replace the following items The item numbers referto the parts list in Section 10 8 the internal Compact Flash card 27 the external Compact Flash Kit 28 e the fan 24 for the HPDU this is a 12 volt fan the connector panel assembly 21 the encoder assembly 12 e the battery 5 e the speaker 20 To access the mounting screws for the speaker you must first remove the ten screws that hold the mounting plate to the front enclosure so that you can raise the bottom edge of the assembly slightly Refer to section 9 5 5
158. le area of the PC Service Application and select Find Log File 2 Select the desired folder from your PC hard drive to store Log Files Rename the file and select OPEN Suggested file naming convention Serial Number date ck log e If a Log File does not exist a message window displays Select Yes to create a Log File 3 Verify the file address location displayed in the Log Calibration results to file area and select Start Logging The Status Log window displays and indicates that the log has been initialized 4 From the EC Ventilator access the Patient Setup menu and select Checkout e Follow the screen instructions and select Start Checkout Information from the ventilator will begin loading into the log after a few seconds 5 From the PC select Stop Log from the Status Log window after checks are complete 6 Select Save Log from Status Log window As each system checkout occurs the Status Log will display Pass or Fail If a checkout fails the log will record and display information about the exact parameter that failed This information is essential in determining the cause for checkout failure s Always include the Log file when iTrak quality reports are submitted 08 07 1505 1018 000 8 Software Download and Diagnostics 8 6 9 Logging Calibration The ventilator must be in the Service Mode to log the calibration results Results power on the system and wait for the Patient Setup menu to display
159. lean the vent engine to remove any contaminants Failure to do so may result in damage to the internal components All mounting hardware for Vent Engine components can be accessed from the top When replacing a component ensure that the o ring or gasket under the component is properly seated in the manifold To remove the harness connector from the O5 Sensor release the retaining tab with a small thin blade screwdriver twist the screwdriver slightly to release the tab Always perform Vent Engine Debris Cleanout after replacing components Refer to section 5 2 3 Lubricate o rings using a small amount only enough to wet the surface of the o ring of Krytox prior to installation 08 07 1505 1018 000 Vent engine clean repair procedure 1505 1018 000 08 07 1 9 Repair Procedures Use compressed airto blow any loose particulates and dust from the manifold and components prior to loosening fasteners Use caution around small parts and elastomers such as o rings and diaphragms Obtain alcohol prep pads or similar damp cleaning wipes before removing components Do not use materials that will lose fibers or leave a residue on components Completely remove all fasteners and place in a temporary container before moving the component Carefully lift the component straight up and away from the manifold Check to make sure all necessary o rings and gaskets are present Store components in a temporary container and not o
160. load on day date time SvcApp Ver XX XX Machine Serial Number ABCDXXXXX Card XXXXXXX System Version XX XX Stock Number RevX Stock Number RevX Stock Number RevX Stock Number RevX Stock Number RevX Software Level Software Level Software Level Software Level Software Level Software Level Software Level File Name File Name File Name File Name File Name File Name File Name Front Panel Cn Serial Power Monitor XXXXXX Vent Control B Serial Vent Monitor B Serial Dsply Unit App Serial Dsply Unit BIO Serial Dsply Unit Fon The Stock Number listed is for the board assembly and may not represent an orderable service item Refer to the parts lists in Section 10 for service level stock numbers The Front Panel Control FPC Display Unit Application DUA and the Display Unit Flash DUF reside along with the Display Unit BIOS DUB on the Display Unit CPU board Selecting View PC Card Install Log brings up the PC Card Install Log for the software download card The log includes chronological entries for every Software Download that was completed with the card Each entry includes two header lines and eight data lines in the following format PC Card Install Log INSTALLATION LOG for PC Card XXXXXXX Software configuration after download on day date time SvcApp Ver XX XX Machine Serial Number
161. location After completing the 02 FCV Air FCV and the Exhalation Valve calibrations setthe Cal Flag to Off If EC Service Application is connected ensure DAC is set to 0 and the checkbox is marked Refer to Section 5 1 1 for further information Notes 4 4 Service menu Use the service level password to access the Service menu 34 22 14 Whenever service menu is entered Enter Service dd mmm yyyy hh mm ss is recorded in the Event log Menu Item Message text Configuration Set language altitude and units Options Key Options List Enable software options Display software options Options Card Install card to enable software options Copy Config Save or install configuration and default settings using memory card Service Log Show error event and alarm histories and system information Exit 4 12 Turn power off to exit menu 08 07 1505 1018 000 4 4 1 Configuration Menu Item Decimal Marker Message text Select decimal delineator 4 Installation and Service Menus 0 01 0 01 or 0 01 Comments Default 0 01 Language Select language for screen Chinese simplified Czech Danish Dutch English Finnish French German Greek Hungarian Italian Japanese Norwegian Polish Portuguese Russian Spanish Swedish Turkish Default English Paw Change Paw units kPa cmH20 mbar kPa cmH20 or mbar Defau
162. lt cmH20 Flow Change flow units l min or l s l min or l s Default I min C02 Change CO2 units 96 kPa or mmHg kPa or mmHg Default 96 Height Change height units cm or in cm or in Default cm Weight Change weight units kg or Ib kg or Ib Default kg Energy Expenditure Change energy expenditure kcal d or kJ d kcal d 1505 1018 000 08 07 Altitude Change altitude used for gas calculations 400 to 3000 m in 100 m increments Default 300 m Engstr m Carestation 4 4 2 Options Key Menu Item Message text Current Key Enter key code to enable options Enter first value of key code Enter second value of key code Entry 4 Enter third value of key code Enter fourth value of key code Entry 5 Enter fifth value of key code Entry 6 Enter sixth value of key code Entry 7 Enter seventh value of key code Save New Key Confirm values for key code Control Board ID 4 4 3 Options List Control number used by key code Available Options FRC SpiroDynamics Neonatal SIMV PCVG BiLevel VG 4 4 4 Options Card Menu Item Message text Upgrade Yes No Options Available on Card Install card to enable software options 4 14 08 07 1505 1018 000 4 4 5 Copy Configuration Menu Item Save to Card Message text Save Configuration and defaults t
163. lue time sec needed to flush system with None Air until stability of 0 1 O is reached Air Valve Cal Air Valve Cal in progress None Air Valve Cal Complete Air Valve Cal passed None Air Valve Cal Fail 1505 1018 000 08 07 Air Valve Cal failed See previous message in status log for cause of failure 1 39 Engstr m Carestation Message in Calibration running field Troubleshooting Aux Span Counts Value Auxiliary pressure sensor DAC counts that None correspond to 100 cmH50 range 3026 to 3589 Aux Zero Aux Zero Cal is in progress None Aux Zero Complete Auz Zero Cal passed None Aux Zero Fail value Auxiliary pressure sensor zero DAC is out of range Value measured zero DAC normal range 631 to 968 1 Verify Paux port is open to atmosphere either directly or via open tube 2 Replace zero valve 3 Replace pressure transducer Bad Air Flow Not able to achieve proper flow during exhalation valve calibration Set at 4 L min 1 Verify FCV is opening to give flow Should be atleast 2 L min If no flow replace FCV Bad Low Pressure value Lowest pressure achieved during exhalation valve cal gt 2 5 cmH0 Value lowest pressure achieved in cmH50x100 1 Verify exhalation valve assembly is properly assembled and latched to outlet manifold 2 Verify tube connecting Insp portto Exp port is not occluded kinked Bad 02 Flow Not able to achi
164. n men iuo ouo ehe reper x oh er RR da wade Yer Cee ex 4 11 AA Senice MON m 4 12 p IMEEM EEEETIECIE Lo 0 01 1 1 7 1 arabe LO 4 13 4412 Options Key i Sedans ands b eR Gi EE REX 4E EUER RV REA RER S 4 14 4 43 0 IDICIB PM m 4 14 AAA Options Card sa nius er ete ei eta ete ze ice ac dct eR oer Edo 4 14 4 4 5 Copy Configuration ms stor Rr Ix ee em qa ck ua Rr eyREES 4 15 AAG Service Log MENU uxease necis em boh xh eade hc ee Re Corea 4 16 4 4 7 Software Hardware version menu cece eee eee eens 4 17 4 4 8 Resetting feature option key codes 0 cece eee c eee eee eens 4 18 5 Service Tests and Calibration 1505 1018 000 08 07 5 1 Calibration SUPET USEN sei n ree xe eclesie ad Mase ar do o RR 5 2 5 1 1 Calibration procedure ocior settee eee mh mmm ewe 5 3 5 2 Service level tests and calibration ss dare s k kok Ada KR de Diaea 5 4 5 2 1 Service application setup ssseresererrrrrrrrerrrrr rr rr rer rr eens 5 4 D 2 2 lestset p 0 stenen ee ene eder a ere uunc Red aga Ra ERROR V Read eec d 5 4 5 2 3 Vent engine debris clean oUt sisii ceca eek meme e eee ritimi RR RR n 5 5 5 2 4 Regulator output pressure teSt 0 cece cee eee eee eens 5 6 5 2 5 Vent engine leak test low pressure 5 8 5 2 6 Vent engine leak test high 05 pressure 20 icc eee eee eee 5 12 5 2 7 Vent engine leak test high Air pressure aaua nasaun 5 14 5 2 8 Calibrate airway pressure transducer Zero and Span 0c cee
165. n the workspace tabletop Ifthe component is going to be re installed place it on the side or back on a clean surface to protect the mating surface Using an alcohol prep pad damp wipe clean the manifold surface by starting at the opening and wiping away from it This will reduce the risk of loose material dropping into the manifold Carefully inspect the opening in the manifold If there is any visual sign of contamination or discoloration the manifold and any upstream components must be replaced Ifthe component removed is to be reinstalled clean itin a similar manner by wiping from any gas stream access points toward the outside edge Carefully inspect the component and seal If there is any sign of contamination knicks small tears or discoloration the component and or seal must be replaced 10 Carefully set the component back on the manifold directly over and aligned with the attachments and avoid slidingthe component once itis in contact with the manifold 11 Reinstall the fasteners and torque it to the required specification as listed 9 7 Engstr m Carestation Note Perform Vent Engine Debris Cleanout Section 5 2 3 after replacement of vent engine components Note When replacing the following items do not overtighten the mounting hardware Use the following torque spec chart to properly mount the component Regulator 2 Nm Flow Control Valve 4 Nm e 05 Sensor 2 Nm 0
166. nal Battery High Mains power not available Internal shutdown in 20 Min battery supply 20 minutes 20 min calculated via battery discharge algorithm System Low Internal Battery High Mains power not available shutdown in 10 Min Internal battery supply 10 minutes 10 min calculated via battery discharge algorithm System Low Internal Battery High Mains power not available Internal shutdown in 5 Min battery supply 5 minutes calculated lt 5 min via battery discharge algorithm System Low Internal Battery 1 High Mains power not available shutdown in Min Internal battery supply 1 minute lt 1 min calculated via battery discharge algorithm Normal alarm if system is operating on battery Check connection to AC supply verify green LED on DU is lit e f LED is not lit check AC mains source check rear power cord clamp check fuses e If LED is lit check output of DC power supply at screw terminals Range is 20 32 V If out of range disconnect DC power supply input harness and verify output is still out of range Check replace DC power supply input harness If out of range and harness is OK replace DC power supply Measure voltage at F1 both sides on PMB Range is 20 32V Check replace fuse F1 on PMB Replace PMB Use EC Service Application PC based Section 8 5 to verify charge discharge rate Temp high Power Supply Temp High Vicor power supply temperature Shutdown Hi
167. nd allow the system to perform the calibration procedure When Air FCV calibration is complete passed select Previous Menu Onthe Calibration menu select Exhalation Valve Connect a patient circuit and block the patient port s On the Exhalation Valve menu select Start Calibration and allow the system to perform the calibration procedure e When Exhalation Valve calibration is complete passed select Previous Menu On the Calibration menu select Backlight Test Select Start Test The display will show the test running on light 1 and then on light 2 If the display goes completely blank or flickers during the test one of the lights has failed Note Screen brightness may change during test Turn power off to exit the Install Service menu 5 3 En gstrom Carestation 5 2 Service level tests and calibration 5 4 Note 5 2 1 Service application setup 5 2 2 Test setup The service level tests require the Windows based service application as described in Section 8 5 EC Service Application PC based After completing the Service level test and calibrations perform the Valve calibrations in Section 5 1 1 as e Connect a Windows based PC to the serial port Port 3 of the EC using a USB to RS 422 converter Refer to section 10 1 1 Startthe Service Application on the PC Open the VCB and VMB windows To establish communication between the PC Service Application and the E
168. nd verify output is zero gage pressure nterchange harness connections on both supply pressure sensors f alarm follows the sensor replace supply pressure sensor e f not check replace harness If not harness check replace VMB 02 supply 02 Supply Pres Low Medium 02 supply pressure lt 24 3 psi for more Latched pressure low than 0 5 seconds De escalatable Go to 100 Air Flow Wave Air only e Check O2 supply Disconnect sensor and verify output is zero gauge pressure nterchange harness connections on both supply pressure sensors e f alarm follows the sensor check sensor connector terminals Replace supply pressure sensor if necessary e If not check replace harness e If not harness replace VMB 02 temp sensor 02 Temperature Sensor Low Out of range 02 temperature sensor error Failure data range is 0 60 degrees C Check inlet O2 temperature If comm Failure alarm is also active check harness connections With gas supplies disconnected and system temperature stabilized use Service App to check temperatures of O2 and total flow sensors O2 flow sensor and total flow sensor shall not differ by more than 9 C Replace sensors 1 28 08 07 1505 1018 000 1 Troubleshooting Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting On battery Low Internal Medium Mains power not available
169. nding menu Push to select a menu item or confirm a setting Turn clockwise or counterclockwise to scroll menu items or change settings Push to remove all menus from the screen The green LED lights continuously when the EC is connected to an AC mains source The internal batteries are charging when the LED is lit Push to change corresponding ventilator setting Turn the ComWheel to make a change Push the Quick key or ComWheel to activate the change Push to deliver 100 O Adult or Ped or 25 above current setting Neo for 2 minutes Figure 1 4 Controls and indicators 1505 1018 000 08 07 1 7 Engstr m Carestation 1 7 Ventilator display CONDOS 9 4 5 12 10 6 cmH20 XXXXX 32 10 20 YAY Ay 19 0 12 498 60 5 1 XXXXXX XXXXXXXXXX XXXXXXXXXXX XXXXX Xxx XX X XX XXXX XXXX ml cmH20 cmH20 x x l min cmH20 cmH20 500 18 1 2 Xxx Xxx 28 18 AB 98 013 Alarm silence symbol and countdown Alarm message fields Waveform fields General message field Clock Patient type icon Measured value fields Digit field Ventilator settings Displays the time remaining during an alarm silence or alarm suspend period Alarms will appear in order of priority Referto Alarms and Troubleshooting for more information on alarm behavior The top two waveforms are permanently set to Paw and Flow The third waveform may be selected as CO O Vol Paux or Off
170. nds Selecting Test Speaker causes the speaker to sound for 5 seconds Selecting Test Backlight 1 turns backlight 2 off for 10 seconds If screen goes black during test a backlight is out Selecting Test Backlight 2 turns backlight 1 off for 10 seconds If screen goes black during test a backlight is out Selecting Test Keys brings up a representative display of the front panel controls Pressing a softkey will cause the corresponding key text to be highlighted Selecting Main Menu returns to the Main Menu 8 7 Engstr m Carestation 8 3 Special Functions Power Diagnostics Display Diagnostics Special Functions Software Download Error Alarm Event Logs Revision and PC Card Install Logs Compatibility Table 8 8 Selecting Special Functions on the Main Menu brings up the following menu selections in the left hand frame System Information Sonar Special Functions View Error Log Serial Sube wer but Me E 623 nM ECCE Tey NEMO SE n dee LR AMOR ze MX Holes BEI View Alarm Log SOLA ss RAS CCS AME LECCE EET EET Nav Niin sd sorkWirho ic serpilen t Deas Ha RE Daye U tazk View Event Log View Revision Log Compatibility Table PC Card Install Log arbi nt Serie Tradi AR TSSCE View Install Errors KC o IU X02 Main Menu In a functioning system the Error Alarm and Event Logs are accessible on the system s Service Log menu refer to Section 4 4
171. needed for optimal performance The menu structure for accessing the calibration software is described in Section 4 Installation and Service Menus The Valve calibrations Section 5 1 1 can be performed without performing the Service level test and calibrations Section 5 2 However if the Service level test and calibrations are performed the Valve calibrations should be performed again after the Service level test are completed passed To file a quality report or request technical assistance regarding a calibration failure create and include a Calibration log while using the EC Service application Run the Calibration while the EC Service Application is running and select Log Calibration Results 08 07 1505 1018 000 5 1 1 Calibration 1 procedure BacklightTest 6 1505 1018 000 08 07 5 Service Tests and Calibration If present disconnect the patient circuit from the inspiratory port open to atmosphere Access the Calibration menu In the standby mode push the System Setup key e On the System Setup menu select Install Service 23 17 21 e On the Install Service menu select Calibration Onthe Calibration menu select 02 FCV e On the 02 FCV menu select Start Calibration and allow the system to perform the calibration procedure When O2 FCV calibration is complete passed select Previous Menu Onthe Calibration menu select Air FCV Onthe Air FCV menu select Start Calibration a
172. ng plate slot transfer to new LCD 6 Remove the four screws circled that hold the LCD to the mounting plate 1505 1018 000 08 07 Engstr m Carestation T Liftthe leftside ofthe LCD display slightly away from the mounting plate to pull some ofthe display ribbon cable H to the top side ofthe plate Flip the LCD overto the left ofthe assembly 8 Disconnectthe display ribbon cable I 9 Reassemble in reverse order Note When replacingthe LCD pull the excess ribbon cable to the bottom side ofthe plate as you lower the LCD on to the plate For the backlight harness grommet G ensure that the slit in the grommet faces toward the inside of the keyhole 9 4 5 To replace The backlight replacement kit includes a backlight assembly with two backlights and the backlights two inverters with mounting hardware To replace the backlight assembly follow the procedure in Section 9 3 to gain access to the assembly To replace the inverters follow the procedure in the next section 1 Remove the one screw J that holds the backlight assembly to the LCD 2 Slide the backlight assembly to the left to free it from the retaining tabs and then lift it out of the holder 3 Transfer the grommet G to the new backlight assembly 4 Reassemble in reverse order 9 16 08 07 1505 1018 000 9 4 6 To replace the Inverters 1505 1018 000 08 07 9 Repair Procedures The Display Unit includes two inverters one for each backl
173. nts sssssersererserr rs e rr rst 9 27 9 6 Adjusting the display arm 2 ss kass sen eee nee IA 9 29 9 6 1 Adjustuppel plVOt ein can veces wee tu eher me kanadai R RA 9 29 9 6 2 Adjust lower pivot s sasr s n srarr nenserarna sans rkkr ra Krk RA AA R ra 9 30 9 6 3 Adjust armi bearing 2 13 ob verc DP cea ro ac eco S REN er 9 30 9 7 Removing a compressor from the cart 9 31 9 8 Attachilig Labels ec ets sore aos trente SR oir Rn Cnt aye n cis piede 9 32 9 8 1 Key BID label 5x reme kie n donee EORR RD RR x deg 9 32 98 2 Feature label iussa yr I gee e mb ea Rer ERES E EE 9 32 1505 1018 000 08 07 9 1 Engstr m Carestation N WARNING A A CAUTION 9 2 To prevent fires Use lubricants approved for O environments such as Krytox Other lubricants may burn or explode in high O concentrations e All covers used on the system must be made from antistatic materials Static electricity can cause fires in high O5 concentrations Obey infection control and safety procedures Used equipment may contain blood and body fluids A movable part or a removable component may present a pinch or a crush hazard Use care when moving or replacing system parts and components Some internal parts have sharp edges and can cause cuts or abrasions Use care when servicing internal components When servicing the EC extreme care must be taken to avoid introducing foreign debris into the pneumatic flow passages ofthe ventilator
174. o card 4 Installation and Service Menus lt blank gt Fail or OK The field is blank until the data has either been written to the card OK or the system determines it cannot write to the card Fail Comments Saves all settings thatare not hardware dependent including facility defaults screen configuration trend settings colors units decimal marker altitude patient type backup settings and the Show Alarm Limits selection Copy from Card Copy Configuration and defaults from card When completed Copy from card complete Please reboot system lt blank gt Fail or OK The field is blank until the data has either been read from the card OK or the system determines it cannot read the card or the card does not have the required data Fail Systems cannot accept configuration files from a different product model The software version is stored with the saved configuration A system will reject any configurations from other than the current version of software Selecting Save to Card overwrites any configuration on the card 1505 1018 000 08 07 Engstr m Carestation 4 16 4 4 6 Service Log menu Error Log 4 Event Log 4 Alarm Log 4 Copy Logs The Service log menu is a organized listing of stored events Menu Item Message text Scroll Recent Scroll through newest entries Error Log Show error history Event Log Show event history Alarm
175. oduces direct digital output of mass flow through an RS 232 interface Individual flow sensors measure the volume of gas dispensed from the O and Air channels during inspiration and expiration The relative proportion of gas dispensed from each channel is continuously adjusted to precisely control the percentage of O delivered to the patient 08 07 1505 1018 000 1505 1018 000 08 07 2 Theory of Operation Downstream of the flow sensor is a flow valve 8 that meters flows from approximately 0 05 l min leakage level to a full flow value of 160 l min The valve is a normally closed proportional solenoid that is powered by a current feedback loop When calibrated on site the flow valve uses both sensors during calibration Data comes from the Total Flow Sensor and is verified again by the Air or O2 Flow Sensors Using data from the inspiratory flow sensor a precise volumetric flow versus input current profile is developed that includes both the valve and regulator characteristics A Bleed Resistor 29 is located in parallel with the O2 Flow Control Valve to prevent pressure build up between the O2 regulator and the Flow Control Valve This Bleed Resistor has a 35 ml min nominal flow High Pressure Valve Transducer Flow High Pressure Transducer Regulator 25 psi Test 172 kPa Port Check Valve Inlet Filter Optional Primary Inlet O2
176. ollowing connections Display Unit Display connection 1 e Future expansion 2 Future expansion 3 Future expansion e Future expansion 4 5 AB 98 181 1505 1018 000 08 07 Engstr m Carestation 2 16 2 3 3 Communication channels The DU communicates to the remainder of the EC system through the Motherboard using 5 digital channels 1 A 500 Kbaud RS 485 interface Mod Bus Datex Ohmeda proprietary module communication protocol to external monitoring modules This link runs through the Monitoring Module Power supply board which forms the physical interface to the M Gas and ultimately other monitoring modules Additionally the Mod Bus interfaces with the PSM Patient Side Module support circuitry future expansion 2 A 38 4 Kbaud RS 422 interface relays setting and alarm annunciation information from the VMB and receives alarm commands and data 3 A 38 4 Kbaud RS 422 interface relays setting and alarm annunciation information from the VCB and receives sensor data for presentation to the user as well as alarm commands As described later the VMB also communicates directly to the VCB thus there exists a triangle of bi directional communication paths between the DU VCB and VMB An RS 232 Serial port that routes to an external connector directly on the motherboard This link ports data from the DU to other compatible equipment via the Onmeda Com 1
177. oltages for use by the board s digital circuits and analog drivers These voltage levels are self tested on the VMB The VMB communicates directly to the DU via the bi directional 38 4 Kbaud RS 422 channel VCD DU Data I O A separate 921 6 Kb RS 422 link VMB Sensor Data 1 0 is used to transmit the VMB s sensor data to the VCB For Neonatal patients the VMB provides circuitry designed to interface with the VCB and VMB and a remote bidirectional gas flow sensor The analog sensor signals are routed from outside of the Engstr m housing to the VMB via an electrical harness to the back of the machine and are filtered on the Motherboard before entering the VMB through the Motherboard internal connector This circuitry is provided 12 5V power via the Motherboard and regulates this down to 5V and 3 3V independent of other VMB circuitry 08 07 1505 1018 000 2 Theory of Operation Nurse Call Nurse Call functionality is supported on units with Serial Numbers greater than CBK00356 and units updated with Motherboard M1053184 and VMB M1052980 Port 4 15 pin may be used to output alarm signals to a nurse call system The ventilator will signal an alarm with a normally open or normally closed signal The nurse call will be triggered by all medium and high priority alarms When alarms are suspended the nurse call will not be signalled If an alarm is silenced the nurse call signal will turn off Note Motherboard M1053184 and VMB 1052980 are
178. om decimal 0 to 65535 forthe 02 Flow Valve Exhal Flow Valve Enables Disables Exhalation flow valve Disabled while a calibration is running Checked Exh Dac Set any DAC value from decimal 0 to 65535 forthe Exhalation Flow Valve Dither Dac DAC value that adjusts the amplitude of the dither signal to the exhalation valve 5000 Nurse Call On Controls the Nurse Call On Off from the VCB Port 4 Pins 3 10 and 11 Checked 08 07 1505 1018 000 8 Software Download and Diagnostics 8 6 5 Calibrations and The 02 Flow Valve DAC Air Flow Valve DAC and the Exhalation Flow Valve DAC tests return to their default values when a calibration completes 1505 1018 000 08 07 Calibration Running Description Shows the current calibration that is running Done The percentage of the calibration that is completed Start Paw Span End Paw Span Starts airway pressure transducer zero and span for all three pressure transducers Insp Exp and Aux Ends airway pressure transducer zero and span for all three pressure transducers Insp Exp and Aux Span DAC Value Exhalation valve DAC counts for the Paw Span Test Default 0 Reset DAC 02 Flow Valve Sets DAC value to zero Runs 02 Flow Valve Test Air Flow Valve Runs Air Flow Valve Test Exhal Valve Cal Tables Runs Exhalation Flow Valve Test Displays a new window showing the calibration tables o
179. or panel assembly 21 two screws Disconnect the following cables e Inverter harnesses A Membrane switch flex cable at ZIF zero insertion force connector B e Speaker cable C Encoder assembly cable D e Membrane switch flex cable at ZIF zero insertion force connector E e Fan cable F e CD cable G If you are replacing the PCMCIA Transfer the battery 5 to the new CPU Verify J17 Jumpers Remove the remaining four screws H that hold the CPU board to the mounting plate Remove the CPU board from the mounting plate frame 3 on an existing CPU board remove four screws on back of CPU board you must also apply new gaskets 4 to the frame Align the ends ofthe gaskets with the top edge of the frame a board Reassemble in reverse order Download latest software Section 8 4 08 07 1505 1018 000 9 Repair Procedures 9 4 4 To replace 1 Disconnectthe following cables the LCD display Membrane switch flex cable at ZIF zero insertion force connector A Encoder assembly cable B Membrane switch flex cable at ZIF zero insertion force connector C s Fan cable D CD cable E 2 Removethe ten screws circled that hold the mounting plate to the front enclosure 3 Remove the mounting plate assembly from the front enclosure 4 Disconnect the backlight harnesses F from the inverter boards 5 Slide the grommet G out of the mounti
180. otherboard 1505 5504 000 with the current Motherboard M1053184 The VMB is based on an Atmel Atmega 128 CPU The VMB performs as an independent monitoring system that provides computational and oversight redundancy to the DU and VCB The VMB independently acquires sensor data relating to the ventilator s three safety parameters airway pressure expiratory e delivered O percentage e and exhaled minute tidal volume In addition the VMB monitors the air and oxygen supply pressures e Air High Pressure Supply via analog cable 10 bits 11 Hz 02 High Pressure Supply via analog cable 10 bits 11 Hz Expiratory flow sensor data via an 12C cable interface 200 Hz e O Concentration via a serial cable 5 Hz Expiratory Airway Pressure via analog signal 12 bits 1000 Hz Barometric Pressure onboard VMB 10 bits Q 11 Hz The VMB controls a safety valve actuator that enables it to unilaterally relieve pressure in the breathing circuit This allows the barotrauma hazard with its 50 ms reaction time to be independently controlled by either action of the VCB or VMB The hazards associated with O concentration improper mixture and low exhaled minute volume hypoventilation have much slower reaction times on the order of minutes and are controlled under fault conditions by the VMB s ability to unilaterally activate the backup buzzer The VMB receives 12 5 Vdc from the PMB which it regulates down to various v
181. ow Out of range barometric pressure data The EC will use the entered of range Sensor Out of Range Range 2163 4340 mV or 732 1196 altitude setting to determine cmH20 the calculated barometric pressure value Calibrate the barometric sensor referto Section 8 7 4 Replace VMB recalibrate barometric sensor Pexp sensor out Paw exp Sensor Out of High Out of range Paw exp sensor data of range Range Range 10 4095 mV Check replace harness Interchange Paux and Pexp connections If Pexp alarm stops replace Pexp sensor e f Pexp alarm continues replace VMB Pexp sensor out Paw exp Zeroing Error Low Range for zero pressure 631 968 mV If failed vent uses previous of range counts known good offset value for Paw exp Verify Pexp port is not occluded Zero Pexp pressure sensor Check replace zeroing valve Check replace harness nterchange Paux and Pexp connections If Pexp alarm stops replace Pexp sensor f Pexp alarm continues replace VMB Pinsp sensor out of range Paw insp Sensor Out of Range High Out of range Paw insp sensor data gt 50 ms or Inspiratory Pressure Zero Valve energized for gt 1 second Range 10 4095 mV Check replace harness nterchange Paux and Pinsp connections If Pinsp alarm stops replace Pinsp sensor e If Pinsp alarm continues replace VCB Pinsp sensor out of range Paw insp Zeroing Error Low Range for z
182. pansion Port 1 0 2 to External Connector 2 08 07 1505 1018 000 2 Theory of Operation For further details refer to Figure 11 13 VCB block diagram in Section11 VCB Vent Control Board 1 MB SRAM V Checks Coldfire V4 CPU I Nebulizer 8 MB Flash Watchdog Dc Air Circuit Power Exhal Valve il Drive w V amp I VMB Sensor Regs Sense 02 Flow Valve 4 Data I O Expansion Port I O 1 Air Valve Drive Expansion Port I O 2 w Sense 1e Bit Exhal Valve 4 Insp Effort Valve ADC O2 Valve Drive Exh Valve Closed w I Sense 16 CH 4 Safety Valve On Off MUX Exh Valve On Off Piezo Electric Neb Board RS 232 Air Flow Temp RS 232 O2 Flow Temp Power for Buzzer 8 UARTS RS 232 I Total Flow Buzzer Control Temp 4 Buzzer Sense XCVRS Current Lmt Control RS 422 VCB DU Data I O 38 4Kb 4 Expansion Signals AB 98 076 Aux P Purge Valve 1505 1018 000 08 07 2 19 Engstr m Carestation 2 3 5 Ventilator Monitoring Board 2 20 VMB Neonatal Option The Engstr m Carestation can use one of two Ventilator Monitoring Boards Original VMB PN 1505 5501 000 Original VMB units do not support the Neonatal option or Current VMB PN M1052980 Current VMB units support Neonatal hardware and expansion capability Port 2 RS 422 via the Motherboard Note If replacement of the original VMB with a current VMB is required it is necessary to replace the original M
183. per Section 3 2 08 07 1505 1018 000 9 3 7 To replace Vent Engine assembly complete 9 3 8 To replace Vent Engine sub assembly 1505 1018 000 08 07 9 Repair Procedures Remove the chassis from the housing Referto Section 9 3 1 Remove the Vent Engine from the chassis Refer to Section 9 3 2 Replacethe Vent Engine with new Vent Engine assembly and connect harness to the VCB and VMB Note Do not install Vent Engine assembly into chassis until all tests and calibration in Step 4 have been completed 4 Oo nN O O 5 Perform Service level tests and calibration Refer to Section 5 2 Install Vent Engine assembly into chassis Referto Section 9 3 2 Install chassis into housing Refer to Section 9 3 1 Perform Super User calibrations Refer to Section 5 1 1 Perform Automated Checkout Refer to Section 3 2 Remove the chassis from the housing per Section 9 3 1 Remove the Vent Engine assembly from the chassis Refer to Section 9 3 2 Remove the following components from the Vent Engine assembly a Harness vent engine to VCB VMB 1505 5706 000 b Inspiratory Manifold Panel Assembly with safety valve 1505 8502 000 c Outlet Manifold Panel Assembly including all mounted components 1505 8505 000 d 02 Pipeline Adapter from inlet manifold 1505 3206 000 e AIR Pipeline adapter from inlet manifold 1505 320 7 000 Clean and install the above removed parts on the n
184. played Use EC Service Application PC based Section 8 5 to facilitate problem isolation Ensure proper connections Remove the Expiratory Pressure Zero valve If the Inspiratory Pressure Sensor values are between 631 and 968 counts replace the Zero Valve Replace the Expiratory Pressure Sensor board Replace the Vent Monitor board VMB Cannot achieve 34 cmH 0 pressure The Air 02 flow valve is set to approximately 10 Ipm and the test is initiated if 34 cmH20 pressure is not achieved test results indicate Fail but no alarm message is displayed Use EC Service Application PC based Section 8 5 to facilitate problem isolation Ensure supply gas is connected e Continue with other tests If a significant leak is indicated during the Low Pressure Leak test repair the leak then repeat this check Check respective Flow Control Valve for proper operation 08 07 1505 1018 000 7 1 2 Barometric pressure test 7 1 3 Low pressure leak and compliance check 1505 1018 000 08 07 1 Troubleshooting 4 Paw insp and Paw exp are not within 4 cmH4O when pressurized to 34 cm H50 Test results indicate Fail but no alarm message is displayed Use EC Service Application PC based Section 8 5 to facilitate problem isolation Use the Service Application to calibrate sensors Section 5 2 8 Replace the affected Sensor board s or Zero valves if calibration fails If this check fails all ventilation mode
185. quality reports are submitted 1505 1018 000 08 07 8 21 Engstr m Carestation 8 7 VMB Diagnostics 8 22 Selecting VMB Diagnostics on the Main menu brings up the following page that contains five grouped areas Baw 08 07 1505 1018 000 8 Software Download and Diagnostics 8 7 1 VMB Channel Configurations The VMB Channel Configurations group includes items that are measured from the VMB If the item is within the acceptable range OK is displayed Expiratory Press next to the value If the item is out of the acceptable range FAIL is displayed instead Description Expiratory Pressure sensor measurement Format 26 8to 131 8 Barometric Press Barometric pressure sensor measurement 643 7 to 1182 0 02 Supp Press O2 supply pressure sensor measurement 9 1 to 127 8 Air Supp Press Air supply pressure sensor measurement 9 1 to 127 8 Reference 1 22V Reference 1104 to 1338 12 5V Supply 12 5V Power supply to the VMB 10900 to 13320 6 1V Expiratory 6 1V power supply to the expiratory flow sensor 5770 to 6370 5V 02 Supply 5V power supply to the 02 sensor 4720 to 5380 5V 02 Press 5V power supply to the 02 pressure sensor 4680 to 5340 5V Air Press 5V power supply to the Air pressure sensor 4680 to 5340 5 5V Analog 5 5V analog supply 5140 to 5880 5 5V Analog 5 5V analog supply Ground 1505
186. r 1 future expansion gt e Serial future expansion connector D e Service Application Serial future expansion connector gt e External Serial 1 0 connector Nurse call C Main DU connector communication channel between DU and EC Th e Monitoring Module Mod Bus connector Original Motherboard i Current Motherboard 2 24 08 07 1505 1018 000 2 Theory of Operation 2 3 9 Monitoring The EC accommodates an optional four bay module assembly that supports Interface Board compatible Datex Ohmeda M series modules Monitoring The assembly includes a Monitoring Interface Board MIB that communicates with the Module Bays DU through the Mod Bus connector The MIB includes circuitry that regulates the raw 16 V power down to 15 V unregulated 15 V regulated and 5 V levels required by the M series monitoring modules ommum msmUm mo magmomo m momo mom mm mmm E 1 0 Panel Connectors External 1 0 Serial Nurse Call Filtering RS 422 Future Expansion 4 amp 4 En Expansion E or 1 Service App H iltering pf rr l4 Expansion Port 1 0 2 RS 422 12 5V Future Expansion ilteri A dt nn f i TR 7 e PSM PSM Future Expansion Filtering 16V Neo Flow Sensor Optional me Monitor Interface Board E amp M Series E amp M Series AB 98 199 t 1505 1018 000 08 07 2 25 Engstr m Carestation 2 26 08 07 1505 1018 000 In this se
187. ratory outlet 4 Plugthe following ports Expiratory inlet EXP Auxiliary pressure port Paux 5 Using the low pressure test tool increase the pressure in the low pressure side ofthe system until the measured Expiratory Pressure VMB Auxiliary Pressure VCB and Inspiratory Pressure VCB readings indicate 70 cmH20 Note Ensure that the three pressures are stable and approximately equal within 5 cmH20 If not refer to Section 7 2 2 6 Once 70 cmH20 is reached clamp the tube on the low pressure test tool to prevent gas flow from the INSPiratory outlet 7 On the VCB screen select Low P Leak 1 to start the low pressure P1leak test 8 Afterthe test is complete 15 seconds e If the leak result does not exceed 10 ml min proceed to to step 9 Note The Low P2 test is not required if Leak result 10 ml min e If Leak result is gt 10 ml min and x 35 ml min perform the Low P2 test e If the Leak rate exceeds 35 ml min refer to Section 7 2 to help identify the cause of the leak 9 Remove the plugs from the EXPiratory inlet and the Paux port 10 De energize L1 the Auxiliary Pressure Purge valve EXP AB 98 088 5 8 08 07 1505 1018 000 5 Service Tests and Calibration AB 98 188 Inlet Manifold Vent Engine Manifold Outlet Manifold Inlet Filter Atmosphere 1505 1018 000 08 07 5 9 Engstr m Cares
188. rd PMB AC power mains e Internal battery The PMB regulates the 24 Vdc power supply output down to raw 16 V and 12 5 V power rails that are used throughout the system all boards locally regulate from these power rails The PMB controls the charging operation ofthe internal battery selecting trickle bulk or float charge status The PMB communicates with the DU through the 9 6 Kbaud RS 232 link PMB Data I 0 It sends status commands to the DU concerning the charge status of the internal 24 V battery The PMB uses this link as a communication interlock to handle the unit shutdown sequence Once a signal is received by the PMB from the mechanical On Standby switch the PMB prompts the DU for a confirmation signal that shutdown is appropriate unit is not in a ventilation therapy state Once the DU relays this confirmation to the PMB the power off sequence is initiated The PMB supports the operation of the EC chassis fan and the fan on the PMB heatsink 2 3 7 Other The EC employs a separate AC to DC switching power supply for providing a nominal Electronic Items 24vvoltage level to the PMB The power supply is capable of regulating 150 W of power Power Panel Connectors output A power entry module contains fuses and filters for Mains AC input cables Finally two internal 12v batteries are connected in series to provide an internal backup 24v power source for the system For further details refer to Figure 11 9
189. rence manual for this product Referto the Engstr m Carestation User s Reference manual if you need further information about the operation of the system Names ofthe hard keys on the display and modules are written in bold typeface for example Normal Screen Menu selections are written in bold italic typeface for example Patient Setup Messages that are displayed on the screen are enclosed in single quotes for example Check sample gas out When referring to different sections or headings in the User s Technical Reference manual the name is written in italic typeface and is enclosed in double quotes for example System Controls and Menus 08 07 1505 1018 000 1 Introduction 1 4 What is an Engstr m Carestation 1505 1018 000 08 07 Note The Engstr m Carestation EC is a critical care ventilator that is flexible and physically adaptable to a variety of work environments It has an intuitive user interface that is common to many Datex Ohmeda products A wide selection of performance options gives the user full control of the system configuration The Engstr m Carestation is a complete system featuring patient monitoring patient ventilation and the capability of interfacing with central monitoring Photos and drawings shown in this manual may not be identical to all variants ofthe product Some photos and drawings show accessories and options that may not be present or available on all variants This manu
190. rent measured pressure cmH20x100 Value2 Current calibration point Check for disconnected breathing circuit during calibration Low Max Flow Value FCV Indicator that system will use the degraded wall supply routine for FCV calibration Check gas supply source to see if it is too weak or restricted if this causes problems Low 02 Pressure Value 02 supply pressure 30 psig Verify proper gas supply Low Pres Leak Test Fail Baro Vent engine low pressure leak test failed because of invalid low barometric pressure reading 1 Verify correct altitude setting 2 Ifthe setting is correct calibrate the barometric sensor 3 Replace Vent Monitor Board VMB Low Pressure Leak Chk Breathing circuit leak check in progress None Low Pressure Leak Chk Complete Breathing circuit leak check passed None Low Pressure Leak Chk Fail Breathing circuit leak check failed See previous message in status log cause of failure Low Pressure Leak Test Vent engine low pressure leak test in progress None 1 46 08 07 1505 1018 000 1 Troubleshooting Message in Calibration running field Troubleshooting Low Pressure Leak Test Complete Low Pressure Leak Test Fail Vent engine low pressure leak test in progress Vent engine low pressure leak test failed because leak was too high None Refer to Section Section 5 2 5 Measure Res
191. rrrrrr er eens 9 6 9 3 4 To replace vent engine components cece eee nee 9 6 9 3 5 To replace inspiratory valve assembly 1505 8502 000 9 9 9 3 6 To replace free breathing valve 0211 1454 100 eee eee 9 10 9 3 7 To replace Vent Engine assembly complete 00eee eee eee eee 9 11 9 3 8 To replace Vent Engine sub assembly 2 0 0 cece eee eee aret 9 11 9 4 Servicing the Display Unit DU 0 cece eee eee eens 9 12 9 4 1 Remove the Display Unit 0 0 b rs s ledes II 9 12 9 4 2 Disassemble the Display Unit s s ss 66 ess een eee eee ieia 9 13 9 4 3 To replace the CPU board ss sms enn cc cece cece eee J ER 9 14 9 4 4 To replace the LCD display 0 cece cece eee eee I 9 15 9 4 5 To replace the backlights x eerie nter RR eR xe erat 9 16 9 4 6 To replacethe Inverters 3 s ss nde saab en mmn 9 17 9 4 7 To replace the front enclosure or components ssssseseserrrrr reser eens 9 18 9 5 Servicing the High Performance Display Unit HPDU ssssssssesssrs reser ere rent 9 20 9 5 1 Remove the Display Unit 0 ccc cece eee eee II 9 20 9 5 2 Disassemble the Display Unit sssssssseresrrer rr rr reser rr rr rr arr ere 9 21 9 53 CPU F o cod reete a Re hee ed cei RN Dea RO e daa 9 21 9 5 4 To replace the CPU board ore e eene Rh RR RR 9 22 9 5 5 To replacetlhie LGD dlsplay entre orm e xx xt eR Rem 9 23 9 5 6 To replace the ba
192. s Replace neo flow sensor Neonatal flow sensor is warranteed for 90 days Replace neo flow sensor cable Replace VMB Repace motherboard Replace VCB No battery Degraded Battery Medium The total battery voltage is lt 20VDC backup Or Verify unit has been connected to mains for more than 24 hours Check error log for related messages Use Service App to determine charge state If in trickle charge replace batteries Each battery voltage is lt 10VDC Check replace harness Check replace PMB 1505 1018 000 08 07 1 25 Engstr m Carestation alarm message Communications from the power controller to the DC cannot be established for 10 seconds Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting No battery DU to PMB Com Error Medium Communications from the DU tothe PMB assumes failed state and backup Or power controller cannot be established allows system to shutdown PMB to DU Com Error for 10 seconds without confirmation from DU Or his alarm allows vent to be Note in y shut down if DU communications is lost Note question mark at end of message and no battery status indicator on display Check error logs for related messages Check communication no software information indicates no communication e If multiple failures replace DU CPU board Check replace display cable C
193. s Q 1000 Hz The VCB contains actuator drive circuits for the following e the Air and O2 Flow Valves the Exhalation Valve e the Inspiratory Pressure Sensor zeroing valve and the Auxiliary Pressure Sensor purge flow valve The Flow Valve and Exhalation valve actuators are driven using current drive circuits and feedback controlled using current sense resistors The VCB contains digital control signals for activating the inspiratory effort and safety relief valves through the VMB and the Piezo Electric Nebulizer The VCB receives 12 5 Vdc from the PMB which it regulates down to various voltages for use by the board s digital circuits and analog drivers These voltage IECels are self tested on the VCB An additional 12 5 Vdc power line is separately connected to an auxiliary buzzer on the VCB that provides a backup audio alarm source The buzzer is normally on and must be kept silent by both the VCB and through a dedicated digital line coming from the VMB A reset or failure of either the VCB or VMB is regarded as a system fault and the buzzer is activated The VCB includes 1 MB of SRAM and 8 MB of Flash memory The CPU is connected to a digital watchdog circuit to monitor continuous and properly sequenced execution of software code As the core processor unit for the EC the VCB includes two external serial I O channels one 19 2 Kbaud RS 422 channel Expansion Port 1 0 1 to External Connector 3 and one 19 2 Kbaud RS 422 channel Ex
194. s maaie o eaa aa ea iaaa enn 1 2 1 1 2 Barometric pressuretest 4 4 ss seems ess eene R eben 1 3 7 1 3 Low pressure leak and compliance check ssssesesesersr rr reser rr rr rr ret 1 3 7 1 4 Safety valve relief and back pressure ssseoseeresrsrr rr rr rer rr rr rr ers rr et 1 4 7 1 5 Exhalation valve calibration check 2 000 cece er rr rr rr rr rr rr eens 1 5 7 1 6 Exhalation flow sensor calibration test s sssosssssesesererrrrrrrr eee eee 1 5 7 1 7 Measure breathing circuit resistance 0 cece ess ie 1 6 7 1 8 Air inspiratory flow sensor calibration check ssosesesersrrssr rer rr rr rr eee 1 6 7 1 9 O inspiratory flow sensor calibration check 0 0 cece eee eee 7 6 7 1 10 O5 sensor test and calibration 6 ccc es cece nee ene nes 7 6 7 1 11 Neonatal flow sensor calibration check 2 00 cece reser rr ers rr ee 1 1 7 2 Troubleshooting Vent Engine Leaks 0 sm ses a nena ssd de dere 1 8 1 2 1 Vent engine leak test ose used esses siste eden 2A ad entr rice OR eda oe 1 8 7 2 2 Auxiliary and expiratory pressure circuitleaks sssssssssesssrrsr sera r ers rs 7 12 7 3 Troubleshooting Startup Screen POST messages 0 eee e eee eee eee 7 14 7 4 Troubleshooting Startup Screen POST messages for HPDU 0005 7 15 7 5 Troubleshooting the Display HPDU a sn seven k cece I 7 16 7 6 Alarm message troubleshooting Chart 0 0 cece cece eee 7 17 7 7 Troubleshoot
195. s will still be available A failure indicates that the difference between calculated barometric pressure based on the input altitude and the measured barometric pressure is greater than 2096 e Verify correct altitude setting e If setting is correct calibrate the barometric sensor Section 8 7 4 Replace the Vent Monitor board VMB recalibrate barometric sensor If this check fails all ventilator modes will still be available and the calculations will use the input altitude as basis for absolute pressure If there are errors in the calculation negative values divide by zero the results will be dashed The results of this calculation will be displayed after the Safety Relief Valve test is completed 1 The first calculation is compliance and is based on the amount of time it takes for a 3 Ipm flow to create 34 cmH 0 of pressure at the Pexp sensor If this pressure cannot be achieved a Failed message will appear and no compliance information will be available 2 The second calculation is the low pressure leak rate It is based on the amount of pressure decay from 25 cmH50 pressure in approximately 3 seconds e Ifthe leak rate is greaterthan 1 Ipm 8 25 cmH50 the compliance value will be dashed and the leak value will show gt 1000 ml min This value can be useful in diagnosing other failures during checkout s If the Leak is greater than or equal to 500 ml min or Compliance cannot be measured or Resistance cannot be m
196. second window after communications have been established with the DU Cycle power Check error log for underlying causes such as voltage range errors Using service card check DU communication to VCB If multiple subsystem communication failures Check replace DU cable Verify DU system interface PCB is fully inserted into DU CPU PCB Check replace DU system interface PCB connector panel assembly Check replace DU CPU board If not multiple subsystem communication failures Check replace DU cable Verify VMB is fully inserted into motherboard Replace VMB Check replace motherboard Check replace DU system interface PCB connector panel assembly Check replace DU CPU board 1 34 08 07 1505 1018 000 1 Troubleshooting Alarm message Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Failed State Processor Reset Failed Sequential watchdogs cause a Vent Safe Operation message processor reset on either VCB or VMB This requirement is intended System failure Service required to ensure that a SW or watchdog reset indicating loss of processor control of either the VCB or VMB will activate the backup audio alarm Cycle power Using service card check error log for underlying causes such as voltage range errors Using service card check DU communication to VCB and VMB e If no VCB comm check VCB CR10 red reset
197. ssage Alarm ID Priority Alarm Condition Special Behavior Comments Action Troubleshooting Replace D fend MGAS Inlet Filter Low MGAS communicates Residue De escalatable Residue gt 40 Sec buildup on the water trap membrane The pump turns Off C02 or O2 wave This decreases airflow Ifa Normal Screen push is Replace D fend detected the DU commands the MGAS to start sampling again Replace D fend Replace neo flow sensor Neo Flow Sensor Failure High Neo flow sensor with 1 hot wire reporting less than 20 ADC and other hot wire reporting normal as measured by VCB or VMB Calibrate neo flow sensor Check neo flow sensor and cable connections Replace neo flow sensor Replace neo flow sensor cable Replace VMB Repace motherboard Replace VCB Sample line MGAS Line Blocked Low MGAS communicates The sample De escalatable blocked 240 Sec tubing inside or outside the monitor The pump turns Off blocked or the water trap is occluded fa Normal Screen push is C02 or 02 MGAS Line Blocked Medium detected the DU commands waveform 760 Sec the MGAS to start sampling instruction again Continuous blockage Check sample line and D fend Wait 30 seconds and press Normal Screen to continue Replace the sample line Replace D fend SBT ends lt 2 SBT lt 2 minutes Low SBT countdown time reaches 2 minutes minutes 1505 1018 000 08 07
198. st 5 Service Tests and Calibration A i S 1 Proumato Y esas iesistor m Eom Row Stor Trg Perso Zoro i IN Pow 41 Valve MAine Valve MW i i Pow i Expat Pressure 7 kpimyPesu 000 00 007046 7777077777 E MW Inspiratory Zero AP Inspiratory Eft AM A Valve I imu MW 1 SE Q Froo Beating H 1505 1018 000 08 07 To Manometer AB 98 114 To Manometer Paux Air Regulator a Check Valve 2 oc e ST a m Auxiliary Pressure lt x Transducer felt Pp A 5 ez bd EE Vent Engine Manifold Outlet Manifold Inlet Inlet Filter P Fitter 0 5 0 OO hir 7 7 Optional Standard 0 Regulator 0 il 0 Total Air Flow Flow Flow Vi Om Sensor Sensor Sensor 5 25 Engstr m Carestation 5 26 08 07 1505 1018 000 In this section A WARNINGS 1505 1018 000 08 07 6 Installation and Maintenance This section covers the regular maintenance procedures minimum requirements needed to make sure that the Engstr m Carestation operates to specifications 6 1 Engstr m Carestation Installation Checklist sssssssesssresrserrerrrrr rr rr eee eee 6 2 6 2 Engstr m Carestation Planned Maintenance ssssessesssrsrersrs rss eee eens 6 4 6 2 1
199. st e If the test passes proceed to step 5 e If the leak remains toggle the Effort Valve closed 3 Repeatthe Vent Engine Leak Test a If the system passes check the Free Breathing Valve diaphram and o ring seal e If the leak remains toggle the safety valve open closed 4 Repeatthe Vent Engine Leak Test e If the system passes check the safety valve seal e If the leak remains check the individual components in the Total Flow path NSF 5 a M unm AB 98 088 1 8 08 07 1505 1018 000 High Pressure Transducer Check Valve Inlet Primary Fiter Standard Air ee CN High Pressure Transducer Inlet Check Primary Fiter Optional Inlet Oo Inlet Manifold Atmosphere Regulator 25 psi M72 kPa Test Port 1505 1018 000 08 07 R w 1 Troubleshooting fis i Pneumatic 1 Exhalation Resistor 1 Flow Sensor NE Expiratory Zero Flow Lowe Mt wie vale M zal Flow r3 Sensor a DC Reesor Bxnalation exe valve Expiratory Pressure c inspiratory Pressure TT H INSP Flow Flow Valve Sensor E o o5 oc E ao lt Auxiliary Pressure Transducer Relief TS Valve M T 5 Auxiliary Pressure Purge Val
200. stem 5 5 Engstr m Carestation 5 2 4 Regulator output pressure test 5 6 Important The regulator output pressure should be checked during battery replacement intervals or whenever the unit is already opened for other reasons Air regulator 1 Remove the plug from the Air regulator outlet test port 2 Connecta test pressure gauge to the Air regulator outlet test port 3 4 On the VCB screen Open the manual Air shut off valve e Verify that the Air Flow Valve is energized M Adjust the Air DAC reading start at approximately 9 500 until the Air flow reading is 15 l min 5 Verify that the test gauge indicates 172 0 69 kPa 25 0 10 psi oo 0 regulator T gt U N e If required adjust the regulator Be sure to tighten the locking nut after adjustment Close the manual Air shut off valve Remove the test gauge and plug the test port Remove the plug from the O regulator outlet test port Connect test pressure gauge to the O regulator outlet test port Open the manual O shut off valve Onthe VCB screen Verify that the 05 Flow Valve is energized M e Adjust the 05 DAC reading start at approximately 9 500 until the O flow reading is 15 l min Verify that the test gauge indicates 172 0 69 kPa 25 0 10 psi If required adjust the regulator Be sure to tighten the locking nut after adjustment Close the manual O shut off valve Remove the test
201. sure leak and compliance check 000 cece rr rr rr rr aret 1 3 7 1 4 Safety valve relief and back pressure 0 eee eee rr rr arr eens 1 4 7 1 5 Exhalation valve calibration check sosssssrssrresrrerer rss rr rr rr rr rr rr ret 1 5 7 1 6 Exhalation flow sensor calibration test sssosssesesesersr reser eee eee eee 1 5 7 1 7 Measure breathing circuit resistance s sosessessssesserress rer sr rss sara 1 6 7 1 8 Air inspiratory flow sensor calibration check ssosesesersrrrrr rer rr rr rar r 1 6 7 1 9 O inspiratory flow sensor calibration check sisssseseerrrr ers rss rr eens 1 6 7 1 10 O5 sensortestand calibration cece eee ae ta 1 6 7 1 11 Neonatal flow sensor calibration check 000 cece rr rer rr rr rr ret 1 1 7 2 Troubleshooting Vent Engine Leaks 0c cece eee rea S 7 8 2 1 Ventengine leak test ois cece te meer hem dee 1 8 7 2 2 Auxiliary and expiratory pressure circuit leaks 0c cece eee 7 12 7 3 Troubleshooting Startup Screen POST messages cece eee eee eee 7 14 7 4 Troubleshooting Startup Screen POST messages for HPDU 0005 7 15 7 5 Troubleshooting the Display HPDU cece eee eee eee eee eee 7 17 7 6 Alarm message troubleshooting chart 0 cece cece eee 7 18 7 7 Troubleshooting Service App messages i et misir em sees me sn nens se des ed KR Ba 1 39 08 07 1505 1018 000 Engstr m Carestation 8 Service Diagnostics and Software Download
202. sure leak check None for information only Value compliance calculation Guaranteed Flow Not Achieved Value Could not bring the flow down to the target flow with the minimum flow command Value minimum flow that was achieved mLpm 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary High Pres Air Leak Test Fail Vent engine high air pressure leak test failed 1 Verify correct altitude setting Baro because of invalid low barometric pressure 2 If the seating is correct calibrate the reading barometric sensor 3 Replace Vent Monitor Board VMB High Pres 02 Leak Test Fail Vent engine high O2 pressure leak test failed 1 Verify correct altitude setting Baro because of invalid low barometric pressure 2 Ifthe setting is correct calibrate the reading barometric sensor 3 Replace Vent Monitor Board VMB High Pressure Air LeakTest Ventengine high air pressure leak test in None progress High Pressure Air Leak Test Vent engine high air pressure leak test passed None Complete High Pressure Air Leak Test Fail Vent engine high air pressure leak test failed because measured leak was too high Refer to Section Section 5 2 7 High Pressure O2 Leak Test 1505 1018 000 08 07
203. t H ensure that the slit in the grommet faces toward the inside of the keyhole 9 24 08 07 1505 1018 000 9 5 6 To replace the backlights Note When replacing a backlight or a backlight inverter you must replace both inverters and the backlight assembly found in the Backlight Kit 9 Repair Procedures The backlight replacement kit includes a backlight assembly with two backlights and two inverters with mounting hardware To replace the backlight assembly follow the procedure in Section 9 4 4 to gain access to the assembly To replace the inverters follow the procedure in the next section 1 Remove the one screw K that holds the backlight assembly to the LCD 2 Slide the backlight assembly to the left to free it from the retaining tabs and then lift it out of the holder 1505 1018 000 08 07 3 Transferthe grommet H to the new backlight assembly 4 Reassemble in reverse order 9 25 Engstr m Carestation 9 5 7 To replace the Inverters Note When replacing a backlight or a backlight inverter you must replace both inverters and the backlight assembly found in the Backlight Kit 9 26 The Display Unit includes two inverters one for each backlight The inverters sandwich the mounting plate and use it as a heatsink Follow the procedure in Section 9 5 5 to gain access to the inverters Replace one inverter at a time 1 Disconnect the backlight cable A from t
204. t Audible in Standby and failure sense bit false when attempting to Monitoring sound the speaker De escalates to Low priority VCB VMB will receive data from DU indicating 1 High priority alarm successfully sounded 2 High priority alarm not successfully sounded 3 No High priority alarm currently active The VMB or VCB will activate the backup buzzer when condition 2 in the special behavior column is active or if condition 1 in the special behavior column is not detected within 15 seconds of the VCB or VMB issuing A high priority alarm All high priority alarms that have the VCB or VMB as the source will activate this alarm Adjust speaker volume to its highest volume If alarm stops replace DU speaker Check DU speaker connection Replace speaker Replace DU CPU board Relief valve Safety Valve Checkout High Failed Safety Relief Valve Checkout User cannot enter Therapy failure Failure Paw reaches 30 cmH20 within 4 state after a powerup until seconds of the start of the check removal criteria is met Paw and Flow Wave Ventilation not available e Check for pneumatic leaks Verify seat seal interface is clean Verify safety valve relief port bottom of ventilator is not blocked Perform the Mechanical over pressure valve test Section 5 2 12 Removal requires successful checkout 1 32 08 07 1505 1018 000 1 Troubleshooting Alarm me
205. tation Low P2 Test 1 Verify that both shut off valves are closed 2 Onthe VCB screen e Energize M the Effort Valve Energized valve e Energize MI the Auxiliary Pressure Purge valve Verify that the Air Flow Valve 02 Flow Valve and the Exhalation Flow Valve are energized II e Set the Air DAC 02 DAC and the Exhalation DAC counts to 60 000 this will release all pressurized gas from the system 3 Attach the low pressure test tool to the INSPiratory outlet 4 Plugthe following ports Expiratory inlet EXP Auxiliary pressure port Paux 5 Using the low pressure test tool increase the pressure in the low pressure side ofthe system until the measured Expiratory Pressure VMB Auxiliary Pressure VCB and Inspiratory Pressure VCB readings indicate 70 cmH20 Note Ensure that the three pressures are stable and approximately equal within 5 cmH20 If not refer to Section 7 2 2 6 Once 70 cmH20 is reached clamp the tube on the low pressure test tool to prevent gas flow from the INSPiratory outlet 7 On the VCB screen select Low P Leak 2 to start the low pressure P2 leak test 8 Afterthe test is complete 15 seconds e Verify that the displayed Leak result does not exceed 10 ml min e If the Leak rate exceeds 10 ml min refer to Section 7 2 to help identify the cause of the leak 9 Remove the plugs from the EXPiratory inlet and the Paux port 10 De energize L1 the Auxiliary Pressure
206. te O flow sensor check passed None Oxygen Flow Sensor Chk Oxygen Flow Sensor Check failed See previous message in status log for cause of Fail failure Oxygen Flow Sensor Chk Oxygen Flow Sensor Check failed because Verify proper gas supply Fail No 02 oxygen supply not detected Oxygen Flow Sensor Fail Oxygen Flow Sensor Check failed because System was unable to achieve 30 Lpm during check 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Paracube Cal 07 Sensor calibration in progress None Paracube Cal Complete O sensor check passed None Paracube Cal Fail 02 sensor check failed See previous message in status log for cause of failure Paracube Chk Paracube 02 sensor check in progress None Paracube Chk Complete Paracube 02 sensor check passed Paracube Chk Fail Paracube 02 sensor check failed See previous message in status log for cause of failure 7 50 08 07 1505 1018 000 1 Troubleshooting Message in Calibration running field Troubleshooting Paracube Chk Fail 50 50 Air Paracube Chk Fail Air Paracube 02 sensor check failed to reach 15 Lpm air flow for 50 50 cal Paracube 02 sensor check failed 2196 cal 1 Verif
207. that the test encountered a problem Use the following table to help troubleshoot messages that result in a failed test or calibration Message in Calibration running field Troubleshooting 120 Lpm flow test 125 Cal Point Too High Value Priorto calibration flow valve make sure system can flow 120 Lpm for at least 1 second Exhalation valve calibration point at 1 25 cmH20 was above 1 30 cmH20 Value pressure cmH20 x 100 recorded at the 1 25 cm H20 cal point None Verify exhalation housing and assembly are seated properly 300 point too high Flow valve calibration point targeting 300 1 Verify breathing circuit is connected and not mLpm was measured above 290 mLpm and leaking could not be extrapolated down 2 Verify low pressure vent engine system is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Aborted Calibration or test in progress has been None aborted Air Flow Sensor Chk Air Flow Sensor Chk is in progress None Air Flow Sensor Chk Air Flow Sensor Check passed None Complete Air Flow Sensor Chk Fail Air Flow Sensor Check failed See previous message in status log for cause of Air Flow Sensor Fail No Air Air Flow Sensor step of Checkout has failed because no low no air supply pressure was detected failure Verify proper supply pressure Air Flush Time Value sec Va
208. to section 5 2 3 5 2 5 5 2 9 8 9 5 2 10 and 5 2 12 Install Vent Engine assembly into chassis Referto section 9 3 2 Install chassis into housing Refer to section 9 3 1 10 Perform Super User calibrations per Section 5 1 1 11 Perform Automated Checkout per Section 3 2 9 9 Engstr m Carestation 9 10 9 3 6 To replace free breathing valve 0211 1454 100 BB OU N O1 9 Remove the chassis from the housing per Section 9 3 1 Remove the Vent Engine from the chassis per Section 9 3 2 Remove the Free Breathing Valve seat 1503 3204 000 from the main manifold Remove and discard Valve Flapper 0211 1454 100 and o ring 1503 3208 000 Cleanthe Free Breathing Valve seal and Valve Flapper using an alcohol prep pad Pullthe Valve Flapper through the hole in the Free Breathing Valve seat and cut off tip of flapper to approximately 7mm Apply a thin film of Krytox to o ring only enough to wet the surface of the o ring and fit o ring into the groove located on the Free Breathing Valve seat Install the Free Breathing Valve seat into the main manifold and tighten valve until it is flush with the manifold Perform Service level tests and calibration per Section 5 2 9 10 Install Vent Engine Assembly into chassis Refer to Section 9 3 7 11 Install chassis into housing Referto Section 9 3 1 12 Perform Super User calibrations per Section 5 1 1 13 Perform an Automated Checkout
209. tor backup and 1 0VDC appears under clock Referto Section 8 1 3 for more information Cycle power Check connections replace harness Check replace fuse Replace batteries No battery Battery Reversed Medium Any battery voltage is less than Battery status indicator backup Connection 1 0VDC appears under clock Referto Section 8 1 3 for more information Cycle power Check connections to battery Replace batteries Replace PMB No battery PMB Self Test Fail Medium Power controller failed self tests Battery status indicator backup memory voltages or CPU appears under clock Referto Section 8 1 3 for more information Cycle power Replace PMB No battery Standby Bulk Charge gt Medium System is in Standby and the charge Referto Section 8 1 3 for more backup 12Hrs mode is bulk charging and the duration information has exceeded 12 hours Check connections Replace batteries Replace PMB No D lite sensor MGAS source D lite off High MGAS Ppeak 3 cmH20 and MGAS Ppeak 5 cmH20 Vent Ppeak for 3 consecutive breaths Verify tube connections at D lite sen Replace D lite sensor and tubing sor e See Module TRM for additional troubleshooting information No exp flow sensor No Exhal Flow Sensor High No Exhalation Flow Sensor connected Use Open Loop pressure control This alarm can be suspended Check Exhalat
210. transducers are two zeroing solenoid valves 21 and 22 These valves are used to disconnect the pressure transducers from circuit pressure and vent them to atmosphere during zero bias calibration This zeroing procedure is conducted routinely every 12 hours under the control of the Vent Engine software 2 1 4 Electronic micropump nebulizer 1505 1018 000 08 07 a ev 22 Gy sae Expiratory Zero 1 a 25 lt aie I les Y E Pneumatic m wall Be JC Resistor 5 Wwe INTE Expiratory Pressure j Male Female Inspiratory Pressure GN C ny rat Ve 22 15 mm Male Female C Safety Y olet Valve Free Breathing Check Valve 23 26 Ary Pressure id 24 Transducer Relief ew Valve Aviary Pressure P urge Valve E H gt H 118 316 17 Inch Stopped oso Barb A third auxiliary pressure channel 23 is used to measure additional patient airway pressures at the discretion of the clinician This port could be used to measure circuit pressure directly at the airway laryngeal cuff pressures or pressures lower in the airway tract The transducer circuit includes a valve 24 to provide a 35 ml min purge flow as required by the particular clinical application For example in measuring airway pressure at the endotracheal tu
211. troduction This section provides a general overview of the Engstr m Ventilator T T What thisimanual includes i eant nct hh DER ecd eet RR x 1 2 1 2 User s Reference manuals 55 eere pex euh xb era RE RR Re eem Sn 1 2 1 3 CONVEntIONSUSCA 41 2 che B ver c b Coda ar e Rh ECRIRE dU da 1 2 1 4 What is an Engstr m Carestation esse se dns sk sege sens emn 1 3 1 5 VENtUlATOF OVelVIBW x maseira aos ciao ack cht Rn RR DER aeie ALE RR go RU e Ae 1 5 1 6 Display controls and indicators 0 c cece eee II 1 7 1 7 Ventilator display ner eb erra ette te ern cv warn ere Pene e whe 1 8 1 7 1 Using menus s sessea ht kk t eR hae OES gr eee Xa RR EN 1 10 1 8 Symbols used in the manual or on the equipment sssssesssrrsrrerer rss arr st 1 11 1 1 Engstr m Carestation 1 1 What this manual includes Other equipment This manual covers the service information for the Engstr m Carestation It covers the following components Display Unit DU HPDU Integral electronics Gas delivery components Frame component Other equipment may be attached to the system Consult separate documentation relative to these items for details 1 2 User s Reference manuals 1 3 Conventions used Hard keys Menu selections Messages Sections and headings Some sections of this manual refer you to the User s Reference manual for the Engstr m Carestation To expedite repairs you must have and be familiar with the User s Refe
212. unctions To run the application first set the system power switch to Off Insert the card carrier with card and slots facing to the rear into the rear PCMCIA interface slot ofthe display unit behind left side door then set the system power switch On The service application will load and display the Main Menu along with the System Information page The Main Menu appears on the left hand side of the screen and includes the following selections Main Menu Remarks Power Diagnostics Access to the Power Supply Diagnostics functions Display Diagnostics Access to the Front Panel Controls Special Functions Access to logs and compatibility tables Software Download Access to the Software Download function You can not return to the Diagnostic section of the service application after entering the software download section You must reboot the system to exit Software Download The System Information page appears on the right hand side of the screen and displays the following system information System Information Subsystem Serial SW Ver Boot Front Panel Cntl Power Monitor Bd XXXX A XX Vent Monitor Bd XXXX A XX Vent Control Bd XXXX A XX Dsply Unit BIOS XXXX A XX Dsply Unit App XXX A XX Machine Serial Number ABCDXXXXX PC Card ID XXXXXX 08 07 1505 1018 000 8 1 2 Power diagnostics Power Diagnostics Display Diagnostics Special Functions Software Download 1505 1018 000 08 07 8 Softwar
213. until they are changed by the user orthe ventilator is turned off Not selectable Heading for the following mutually exclusive lists Adult Pediatric Neonatal or Factory Show Adult facility defaults and settings The Adult Settings page contains a list of parameters or settings and the corresponding Saved and Current values for the Adult patient type The Current values reflectthe settings in the Vent Setup and Alarms Setup menus Any setting that does not have a value shows three dashes Pediatric Show Pediatric facility defaults and settings The Pediatric Settings page contains a list of parameters or settings and the corresponding Saved and Current values for the Pediatric patient type The Current values reflectthe settings in the Vent Setup and Alarms Setup menus Any setting that does not have a value shows three dashes Factory Show adult and pediatric Factory defaults Referto section 4 2 6 Neonatal Show Neonatal defaults and settings The Neonatal Settings page contains a list of parameters or settings and the corresponding Saved and Current values for the Neonatal patient type The Current values reflectthe setting in the Vent Setup and Alarms Setup menus Any setting that does not have a value shows three dashes Neo Factory Show neonatal factory defaults Referto section 4 2 6 Backup 4 8 Set defaults for backup ventilation
214. ure there are no visual signs of moisture entering into the ventilator engine O 7 Complete the battery capacity test Section 6 5 O 8 Electrical safety tests Section 3 5 L1 9 Complete all Service level tests and calibrations Section 5 2 L1 10 Complete all Super User calibrations Section 5 1 L1 11 Complete the Checkout procedure Section 3 2 6 2 2 Every forty eight In addition to the 12 month requirements replace the following parts every 48 months 48 months 4 years L1 1 Replace the system batteries Stock Number 1009 5682 000 Note Refer to the Battery capacity test in Section 6 5 O 2 Check regulator output Section 5 2 4 6 2 3 Every sixty 60 In addition to the 12 month requirements replace the following parts every months 60 months 5 years O 1 Replace Lithium battery 1009 5800 000 on display CPU board Refer to Section 9 5 2 item 5 6 4 08 07 1505 1018 000 6 Maintenance 6 3 JunAir EVair03 Compressor Maintenance Model 0F302 1 5DSA Serial Number Date YY MM DD Hospital Performed by O 12 months L1 24 month L1 48 month L1 6 3 1 Every twelve 12 months oo ao L1 1505 1018 000 08 07 Perform the following steps every 12 months Referto the JunAir EVairO3 Compressor Technical Reference manual TRM 6189655 for additional information 1 2 3 4 10 Disconnect the air pipeline supply if present Unplug mains AC power from compressor
215. ve 7 On the VCB screen select High 02 Leak to start the test 8 Afterthe test is complete Max 15 seconds Verify that the displayed Leak rate does not exceed 26 ml min e if not troubleshoot for leaks in the shaded area 9 Remove the plugs from the INSPiratory EXPiratory and Paux ports 10 0n the VCB screen De energize L the Effort Valve Energized valve De energize L1 the Auxiliary Pressure Purge valve AB 98 086 5 12 08 07 1505 1018 000 Inlet Manifold Atmosphere 5 Service Tests and Calibration Inlet 0 Sensor Waz O26 Paux M Fra eee 7 130 mm Male Cone i Exhalation EH Fow Sensor Rin Expiratory Zero d ii valve vf i i y Exhalation i 7 LIAR INSP AB 98 189 L3 z Vent Engine Manifold Outlet Manifold Fiter CX Air Standard Air Regulator O Test Port O Q Total Air Air Flow Flow Flow Sensor Sensor Valve e o O JJ o9 Relief AB 98 112 1505 1018 000 08 07 Engstr m Carestation 5 2 7 Vent engine leak Note The high Air pressure leak test will not start if the Air supply pressure is test high Air pressure 35 psig or below 1 2 3 Oo O O 5 14 Verify that the INSPiratory outlet is open to atmosphere not plugged
216. ve Pax H H Vent Engine Manifold Outlet Manifold 02 Regulator 3 4 05 0o s Flow Valve AN D Inlet Filter yr 0 Sensor 0 Flow Sensor Standard Air Regulator O Test Port O Air Flow Valve AB 98 120 1 9 7 10 Engstr m Carestation 5 Open only the O flow valve by checking the 02 Flow Valve box verify that 6 60000 DAC counts are set Repeat the Vent Engine Leak Test e f the test fails check the individual components in the O Flow path e If the test passes check the individual components in the Air Flow path 08 07 1505 1018 000 1 Troubleshooting AB 98 111 l x L _ MV Inlet Manifold Vent Engine Manifold Outlet Manifold LEG D iteuahr Regale IE F Bo Atmosphere AB 98 121 1505 1018 000 08 07 7 11 Engstr m Carestation 7 2 2 Auxiliary and expiratory pressure circuit leaks Warning 1 12 If the vent engine leak test Section 5 2 5 fails at step 5 the following steps will help to locate the possible leak locations Flow in the Auxiliary and Expiratory pressure circuits is restricted therefore failure to build pressure may not cause the leak test to fail and may not af
217. ve any remaining residue from the mounting area clean with isopropyl alcohol 7 Remove the inside protective material from the front of the window 8 Peelthe front outside frame of the release liner 9 Lowerthe window straight down in the enclose noting the notch in the window and the matching nub on the enclosure 10 Before seating the window position it in contact with the bottom and right sides of the frame see arrows so that the larger gap between the window and the enclosure is atthe top and left edges as viewed from behind 11 Remove the protective film from the back side of the window 9 27 Engstr m Carestation Toreplace a membrane 1 switch and keypad 6 T 8 Remove the screw that attaches the grounding strap to the enclosure Prythe membrane switch and keypad from the enclosure Remove any remaining residue from the mounting area clean with isopropyl alcohol Remove the backing from the membrane Be sure to remove the small backing below the flex cable Be careful notto allow the ribbon cable to adhere to the backing Insertthe flex cable and ground strap through the slot in the enclosure Ensure that all ofthe ground strap passes through the slot an does not remain folded over under the membrane fully inserted Carefully lowerthe membrane straight down to the enclosure Seatthe membrane in place Remove the backing from the keypad and install it overthe membrane switches
218. ve the CPU board from the mounting plate Transfer the battery 5 to the new CPU board Reassemble in reverse order Download the latest software Section 8 4 08 07 1505 1018 000 9 Repair Procedures 9 5 5 To replace 1 Disconnectthe following cables the LCD display s Right membrane switch flex cable at ZIF zero insertion force connector A Encoder assembly cable B Lower membrane switch flex cable at ZIF zero insertion force connector C e Fan cable D e LCD cable E e eft membrane switch flex cable at ZIF zero insertion force connector F 2 Removethe ten screws circled that hold the mounting plate to the front enclosure 3 Remove the mounting plate assembly from the front enclosure 4 Disconnect the backlight harnesses G from the inverter boards 5 Slide the grommet H out of the mounting plate slot transfer to new LCD 1505 1018 000 08 07 9 23 Engstr m Carestation 6 Remove the four screws circled that hold the LCD to the mounting plate T Liftthe leftside ofthe LCD display slightly away from the mounting plate to pull some ofthe display ribbon cable I to the top side ofthe plate Flip the LCD overto the left ofthe assembly 8 Disconnect the display ribbon cable J 9 Reassemble in reverse order Note When replacingthe LCD pull the excess ribbon cable to the bottom side ofthe plate as you lower the LCD on to the plate For the backlight harness gromme
219. white and the green LED is on 1 Verify that the cable connecting the HPDU to the system s rear panel is properly seated 2 Open the HPDU and verify that the cable connecting the main PCB to the display at J28 is properly seated within the mating housing and check for damage and or wear Replace the HPDU w Rotary encoder fails to work Re Open the HPDU and verify that the cable connecting the main PCB to the rotary encoder at J38 is properly seated within the mating connector Verify that the revision of the flex cables connecting the main PCB to the keypads at J23 and J26 are at revision 101 or greater by inspecting the labels directly adhered to the flex cables 3 Replace the rotary encoder 4 Replace the HPDU main PCB N Unit fails to boot and the green LED is on m Open the HPDU and ensure that the lithium coin cell at J17 on the main PCB is properly installed Replace the lithium coin cell at J17 on the main PCB Verify that the internal Flash card at J10 on the main PCB is properly seated Attempt to boot the system using a spare compact flash card and replace the card if necessary Attempt to boot the system from the external Compact Flash card Replace the HPDU main PCB Wh gt Excessive fan noise Clean the HPDU fan inlet filter Check for obstructions within the external fan and verify source of fan noise Open the HPDU and verify internal CPU fan noise
220. y Relief Valve Free Breathing Check Valve AB 98 195 To Manometer Auxiliary Pressure Transducer Reliet Valve we Auxiliary Pressure Purge Valve H H EH Vent Engine Manifold Outlet Manifold Inlet Standard 0 Test Port Atmosphere 02 Regulator 0 T a 0 Sensor Sensor AB 98 118 1505 1018 000 08 07 INSP To Manometer Umbrella Relief Valve 5 23 Notes 5 2 12 Mechanical Verify that the ventilator passes the low pressure leak test Section 5 2 5 overpressure Turn the ventilator off valve test Using a syringe inject 60 ml of air into the ventilator through the INSPiratory port BB 0 N e Afterthe entire volume is delivered verify that the pressure reading on the manometer is greater than 100 and less than 130 cmH20 e if not troubleshoot the safety relief valve Note Pressure may spike higher than 130 cmH20 during 60 ml volume delivery if delivered at a rate greater than 4 l min INSP AB 98 090 To Manometer 5 24 08 07 1505 1018 000 High Pressure Transducer Inlet High Pressure Transducer Inlet Primary Filter Optional Inlet Oo Inlet Manifold Atmosphere Regulator 25 psi 172kPa lt Test Te
221. y breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Paracube never completed 2196 calibration Check Paracube Paracube Chk Fail 02 Paracube 02 sensor check failed to reach 30 Lpm O2 flow for O2 cal 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Paracube Fail Paracube Sensor Fail 50 50 02 Paracube 02 sensor check failed to reach 30 Lpm air flow Paracube 02 sensor check failed to reach 15 Lpm O2 flow for 50 50 cal 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary 1 Verify breathing circuit is connected and not leaking 2 Verify low pressure vent engine is not leaking 3 Verify exhalation valve is properly connected and all seals are in place 4 Verify gas flow from flow control valves Recal if necessary Paux Zeroing Auxiliary pressure sensor is being zeroed at start None of Sp

Engström Carestation - Frank`s Hospital Workshop

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Engstr&ouml;m Carestation - Frank`s Hospital Workshop

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Engström Carestation - Frank`s Hospital Workshop