SLE 2000 HFO, Service Manual

Page 1: ...Issue 10 SLE 2000 HFO Ventilator Service manual High Frequency Oscillatory Ventilator 0120 ...

Page 2: ...ans electronic mechanical photocopy recording or otherwise without prior permission of SLE Copyright SLE 01 10 2004 Manual SM0006 Issue 10 SLE Part Nº N2005 00 SLE Limited Twin Bridges Business Park 232 Selsdon Road South Croydon Surrey CR2 6PL Telephone 44 0 20 8681 1414 Fax 44 0 20 8649 8570 E mail admin sle co uk E mail s should be addressed to the Service Manager Web site www sle co uk ...

Page 3: ...ction and Sterilization 28 4 1 Preparation of a new ventilator 28 4 2 Cleaning and disinfection of an in service ventilator 28 4 2 1 Cleaning Disinfection Sterilization chart 29 4 3 Cleaning method 29 4 4 Disinfection method 30 4 5 Sterilization method 30 5 Filter Systems 31 5 1 Bacterial filter SLE Part Nº N2029 Autoclavable 31 5 2 Bacterial filter SLE Part Nº N2587 Single use 31 5 2 1 Precaution...

Page 4: ...gger Calibration 44 11 2 8 PTV sensitivity control 44 11 3 Motor Drive Board A0739 02 45 11 4 HFO Main Board A0736 03 45 11 4 1 Scaling of pressure LCD display 45 11 4 2 Bargraph Calibration 46 11 4 3 One second timer 46 11 4 4 Motor Stall Alarm 46 11 4 5 Fan Fail Alarm Verification 46 11 4 6 HFO Rate Display 47 11 4 7 HFO Alarm 47 11 5 Alarm module and oxygen conditioning circuit A0738 02 47 11 5...

Page 5: ... LCD Module 67 15 1 Pneumatic Circuit 68 15 1 1 Pneumatic Layout 69 15 1 2 How to Identify Proximal Airway Purge Type 70 15 1 3 Conventional Ventilation 71 15 1 4 HFO Operation 72 16 SLE2000 HFO Troubleshooting Chart 74 17 Circuit Details 80 17 1 AS A0700 02 Display Board Assembly 80 17 1 1 CD A0700 02 Display Board Circuit Diagram 81 17 2 AS A0701 02 LED PCB Assembly 83 17 2 1 CD A0701 02 LED Boa...

Page 6: ... 17 15 AS A0745 Pressure Drift Monitor Board Issue 1 145 17 15 1 CD A0745 Pressure Drift Monitor Board Circuit Diagram Issue 1 146 17 16 AS A0745 Pressure Drift Monitor Board Issue 2 147 17 16 1 CD A0745 Pressure Drift Monitor Board Circuit Diagram Issue 5 148 17 17 Serial Interface Option CD A0702 03 150 17 18 CD W0308 Wireloom Issue 6 152 17 19 Front Panel 153 17 20 SK0057 Power Supply Wiring Di...

Page 7: ... the proximal airway purge 220 19 1 9 SI 990401 Attenuated alarm sounder for the 12 24V voltage monitor 223 19 1 10 SI 990801 Enhanced EMC 225 19 1 11 SI 991101 Ventilator Power Supplies 230 19 1 12 SI 000101 Modification of SLE 2000 HFO motor drive circuit board 233 19 1 13 SI 000201 Leak Alarm Trigger Threshold 236 19 1 14 SI 000602 Addition of HFO NEEP 238 19 1 15 SI 020901 Cleaning Disinfectio...

Page 8: ...Page 8 of 258 Issue 10 01 10 2004 This page is intentionally blank ...

Page 9: ...Issue 10 01 10 2004 Page 9 of 258 Introduction ...

Page 10: ...the patient circuit with an active expiratory flow of gas The oscillatory flow of gas is supplied from a separate rotating jet therefore it is possible to add the oscillations to the inspiration or expiration pressures It is also possible to add oscillations to the inspiratory plateau when operating the ventilator in any of the Patient triggered modes of operation As in the SLE2000 every care has ...

Page 11: ...Issue 10 01 10 2004 Page 11 of 258 Ventilator Control Description ...

Page 12: ...Page 12 of 258 Issue 10 01 10 2004 2 Ventilator Control Description The SLE 2000 HFO consists of two linked modules Electronic and Pneumatic Electronic Module Pneumatic Module ...

Page 13: ...witch 3 HFO rate switch 4 Screen switch 5 Time control switch 6 Display Freeze button 7 Display screen 8 Low alarm adjustment control 9 High alarm adjustment control 10 Cycle fail alarm adjustment control 11 Alarm Reset button 12 Alarm mute button 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 21 22 23 24 25 26 27 19 ...

Page 14: ...ion switch 16 PTV sensitivity control 17 O2 blender control 18 O2 inlet 19 Medical air inlet 20 Inspiratory pressure regulator 21 Oscillator pressure regulator 22 CPAP PEEP pressure regulator 23 Fresh gas to patient port 24 Exhalation block 25 Pressure monitoring port 26 Inspiration time control 27 Breaths per minute BPM control ...

Page 15: ... 15 of 258 2 2 Back Panel 1 Auxiliary Output 2 FIO2 Calibration adjustment 3 Running time meter pneumatic module 4 Fuse holders 5 Product information plate 6 FIO2 Adjustment Tool 7 Fan and Filter 8 Filter only 1 2 3 4 5 6 7 8 ...

Page 16: ... Position of the boards within the electronic module 1 HFO Main Board Assembly A0736 03 2 Ventilator CPU Board Assembly A0702 04 3 Motor Drive Board Assembly A0739 02 4 Alarm Board Assembly A0738 Not visible from drawing mounted on back panel 5 Pressure Drift Monitor Assembly A07450 Not visible from drawing Note Boards 1 2 and 3 are polarised by the position of the edge connectors thus preventing ...

Page 17: ...Issue 10 01 10 2004 Page 17 of 258 Access to Internal Components ...

Page 18: ...and 2 screws at either side of the unit 2 Slide top cover to the rear and remove 3 Remove these four screws from EM shielding 4 Loosen these screws on either side of unit one of them is not visible from the drawing 5 Remove EM shielding taking care not to damage metal contact fingers on front edge of plates 6 To remove the PCB assemblies remove retaining thumbscrews one for each board next to the ...

Page 19: ...ge 19 of 258 3 2 Pneumatic Module 1 Open side flap 2 Remove 2 screws at rear and 2 screws at base of unit 3 Lift complete unit from base The unit can then be placed on the work surface upside down See section 3 3 on page 20 ...

Page 20: ...f the pneumatic unit see section 3 2 on page 19 1 Remove the four screws 2 Remove proximal airway pressure tube connection 3 Remove fresh gas monitoring tube connection 4 Loosen both locking screws and disconnect 25 way plug It is now possible to separate the pneumatic module from the electronic chassis 1 3 1 1 2 4 1 ...

Page 21: ...1 Gain access to the pneumatic module see section 3 2 on page 19 2 Release the electrical connector from the plastic clip and disconnect 3 Remove the two screws retaining the manifold and lift clear 4 Check that the O ring on the spigot on the manifold is in good condition replace if necessary Part Nº N2213 5 The replacement cell Part Nº N2191 is supplied with a foam pad attached to the base Ensur...

Page 22: ...that the motor assembly has HFO NEEP The method of identifying which motor assembly is fitted is a follows The N2524 motor assembly is connected to the ventilator via a 9 pin D connector See photograph A The N2524 01 N2524 02 motor assembly is connected to the ventilator via a 8 way Molex connector See photograph B 3 5 2 Removal of N2524 motor assembly 1 Release 2 screws on the 9 pin D connector 1...

Page 23: ...e motor assembly 5 Remove the 2 screws 5 retaining the cover plate 6 and lift clear 6 Remove the final screw 7 retaining the motor assembly 7 Remove the sub assembly by tilting the top towards you 8 Replace sub assembly in reverse order The sub assembly Part No N2524 is available as a service exchange part 3 4 3 4 5 5 6 7 ...

Page 24: ...embly 1 Fully unscrew the retaining nuts on the two pneumatic connectors 1 and remove the two tubes Note that one of the connectors is marked for identification on re assembly 2 Pull out the grommet retaining the loom 3 and disconnect the 8 way Molex connector 4 1 1 3 4 5 6 5 6 7 7 8 ...

Page 25: ... motor assembly 5 Remove the 2 screws 7 retaining the cover plate 8 and lift clear 6 Remove the final screw 9 retaining the motor assembly 7 Remove the sub assembly by tilting the top towards you 8 Replace sub assembly in reverse order The sub assembly Part No N2524 01 and N2524 02 is available as a service exchange part 9 ...

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Page 27: ...Issue 10 01 10 2004 Page 27 of 258 Maintenance ...

Page 28: ...t be returned in its original box Remove the protective film from the LCD screen Clean disinfect and sterilize in accordance with the instructions in section 4 2 Remove the inlet air and O2 gas port caps Retain for future use 4 2 Cleaning and disinfection of an in service ventilator The table 1 outlines the areas of the ventilator which can be uniquely cleaned disinfected and sterilized Before cle...

Page 29: ...ion internally discard and replace with a new silencer 4 3 Cleaning method Note Cleaning is an essential prerequisite to disinfection and sterilization Ventilator For cleaning use three clean disposable absorbent non shedding cloths Wipe clean with the first cloth using a hand hot water mild general purpose detergent solution as prescribed by the appropriate hospital authority Do not overload the ...

Page 30: ...t be allowed to dry thoroughly before sterilization 4 5 Sterilization method The silencer SLE part Nº N2186 and exhalation block SLE part Nº N0635 must be sterilized between use on patients The ventilator cannot be sterilized The exhalation block must be cleaned as an essential prerequisite to sterilization Autoclave with pure dry saturated steam at 134ºC 277ºF Allowable variation of temperature o...

Page 31: ...h pure dry saturated steam at 134ºC 277ºF Allowable variation of temperature of 3ºC at 220kPa 32psi with a minimum holding time of 3 minutes or 121ºC 248ºF Allowable variation of temperature of 3ºC at 96kPa 14 1psi with a minimum holding time of 15 minutes The filter can be autocalved a maximum of 25 times within its anticipated service life of 12 months For other makes of bacterial filter please ...

Page 32: ...y Failure Alarm test With the FIO2 blender set to 60 remove in turn both air and oxygen supplies Check that in each case the alarm sounds and on replacement the alarm cancels 6 1 3 Condition of O2 Cell Set blender to 21 and remove O2 supply Observe that displayed FIO2 is 21 Reconnect O2 supply and remove air supply Set blender to 100 and observe that displayed FIO2 is 100 for adjustment see sectio...

Page 33: ...e between 37 and 43 cmH2O 6 1 5 CPAP pressure check Set ventilator to CPAP HFO mode off Check that the CPAP pressure regulator can be set up to produce a pressure of at least 35 cmH2O 6 1 6 HFO pressure check Check that the Oscillator pressure regulator can be set up to produce a peak to peak pressure of 90 cmH2O with the ET tube in the patient circuit occluded and the HFO rate set to 3Hz ...

Page 34: ...entative Maintenance will include Visual inspection and cleaning of all exterior surfaces controls attachments and acces sories Removing of the covers and cleaning all dust from the interior of the unit Replacement of all 3 cooling fan filters Two mounted on the back panel and one on the side Access to the filters is gained by un clipping the fan covers Visual inspection of all tubing electrical w...

Page 35: ...Issue 10 01 10 2004 Page 35 of 258 Overhual ...

Page 36: ...ent of INSPIRATORY CPAP and OSCILLATOR regulators Replacement of motor assembly Service exchange unit N2524 or 01 or 02 Check operation and general condition and replacing where necessary the following components Solenoid valves SV2 SV3 and SV5 Tubing and connectors Battery holder Alarm sounders Mode wave shape frequency range switches Pressure relief valve Re calibration and testing which will in...

Page 37: ...Issue 10 01 10 2004 Page 37 of 258 Exchanging a Pneumatic Unit ...

Page 38: ...Section 11 Step 2 Electronic Module Setup on page 41 Section 11 2 2 U18 26 ADC on page 42 Section 11 2 3 Buffered transducer output on page 42 Section 11 2 4 Fresh Gas Block and Leak Alarm on page 43 Section 11 2 6 Maximum Inspiration Time on page 44 Section 11 3 Motor Drive Board A0739 02 on page 45 Section 11 4 1 Scaling of pressure LCD display on page 45 Section 11 4 4 Motor Stall Alarm on page...

Page 39: ...Issue 10 01 10 2004 Page 39 of 258 Setup and Calibration ...

Page 40: ...ect ventilator to air and oxygen supplies With a standard patient circuit fitted and with the electronic module switched to CPAP mode Set HFO mode OFF and blender to 21 Then wait approximately 15 minutes for the ventilator to stabilize before continuing 10 1 Internal Pressure Regulator Monitor the fresh gas pressure regulator output using the test point provided and adjust output of regulator REG ...

Page 41: ...er supply housing When viewed from the front Remove board A0736 and insert the dummy load resistor 15 Ohms 1 5W between PLA 1a b and PLA pin 32a b Monitoring the voltage between pin PLA pin 1a b on the PSU and pin PLA 32a b on the PCB connector for the top board A0736 adjust the preset R26 on the power supply unit to give a voltage of 5 12V 0 01V When set remove the dummy load resistor an re inser...

Page 42: ...here adjust RV2 to give 3 11V Set up a pressure of 60cmH2O Adjust RV5 so that U18 26 is 4 91V Repeat the above until both voltages are within 10mV Set up a pressure of 60cmH2O Check that U18 26 is 1 28V 11 2 3 Buffered transducer output Monitor PLB 23b With PTR1 ports open to atmosphere adjust RV3 to give 3 42V Set up a pressure of 60cmH2O Adjust RV4 to give 6 42V Repeat the above until both volta...

Page 43: ...ving regulator at the fresh gas outlet of 17 5cmH2O 0 5cmH2O Adjust RV501 so that the leak alarm and LED just trip on Create a pressure by adjusting the relieving regulator at the fresh gas outlet of 80cmH2O 0 5cmH2O Adjust RV502 so that the high pressure alarm and LED just trip on 11 2 5 Patient Purge Pressure Display Compensation For Version 1 and 2 of proximal airway purges Connect all gas supp...

Page 44: ...ory effort Presets RV7 RV8 and RV9 should not be present on this board since these are for CPAP Cycle Fail and High pressure limits and are now monitored by the HFO CPU PCB A0736 03 With a dual beam oscilloscope connect channel 1 to U200 2 inverted channel 2 to U200 4 Timebase 100ms cm sensitivity 2V div Set ventilator to CMV Mode 60BPM 0 5sec insp time This will produce 2 positive going waveforms...

Page 45: ...ansducer output using a calibrated oscilloscope Verify that minimum HFO rate is 3Hz 333ms 3ms and that maximum HFO rate is 20Hz 50ms 0 5ms 11 4 HFO Main Board A0736 03 Connect Pressure source to port P2 on PTR1 A0702 04 board 11 4 1 Scaling of pressure LCD display Whilst monitoring TP2 Set up a pressure of 60 cmH2O 0 5cmH2O Adjust P14 to give 4 63V 0 01V Set up a pressure of 60 cmH2O 0 5cmH2O Conf...

Page 46: ...2O Adjust P8 so that the illuminated segment represents 30 cmH2O Adjust P7 so that the illuminated segment represents 0 cmH2O 11 4 3 One second timer Monitor TP6 using a digital timer Adjust P15 to give a pulse repetition rate of 1 000 sec 0 005 secs Press Freeze button and observe that freeze function unlatches at 1 minute 1sec 11 4 4 Motor Stall Alarm Switch to HFO Mode and set motor speed to 3H...

Page 47: ... to the ventilator Adjust oscillator pressure to a peak to peak value of 6 cmH2O 0 cmH2O Adjust oscillator frequency to 3Hz 0 Hz Adjust P5 fully clockwise Adjust P6 so that the cycle fail alarm is just activated Increase oscillator pressure to a peak to peak value of 8 cmH2O 0 cmH2O Cycle fail alarm should be de activated 11 5 Alarm module and oxygen conditioning circuit A0738 02 11 5 1 Oxygen Cal...

Page 48: ...n Diff and Low is 90mV 5mV Issue 2 recognisable as only having three potentiometers a Whilst monitoring the DC voltage at DIFF vary the pressure to the proximal airway port over the complete range approx 60 to 60cmH20 Adjust RV3 until the voltage measured at DIFF is the same at 60cmH20 as it is at 60cmH20 to within 20mV DIFF should be in the region of 8V Pay special attention to the indicated pola...

Page 49: ...n 57 and 63 With the blender set to 60 O2 decrease the air supply pressure to the ventilator and note that the blender alarm is activated when the air pressure is approximately 30psi less than O2 pressure Gradually increase air pressure until the alarm is de activated Note that O2 concentration is between 57 and 63 Restore air pressure to 4 Bar Remove test lung from patient circuit and occlude the...

Page 50: ...visual alarms Select CPAP mode HFO OFF 8 Check operation of MANUAL BREATH push button and by adjustment of INSP TIME control confirm that a range of inspiratory times from 0 1 sec to 3 0 sec shall be obtained and that this adjustment can be monitored on the INSP TIME display 9 Check that no mandatory breaths are present other than those produced by the MAN UAL BREATH push button 10 Switch HFO succ...

Page 51: ...nds 19 Select CMV mode HFO off Set a CPAP pressure of 0 cmH2O and an INSP pressure of 20 cmH2O Set an INSP time of 0 5 seconds and a CMV rate of 60 BPM Set CYCLE FAIL alarm level to 10 cmH2O HIGH alarm level to 30 cmH2O and CPAP alarm level to 5 cmH2O Press reset button observe that the displayed pressure wave crosses the CYCLE FAIL alarm setting on the LCD display and bargraph and that no alarms ...

Page 52: ...f pressure cycle 5 Switch HFO mode to OFF Check that HFO modulation does not occur during any phase of pressure cycle 6 Select PTV mode With HFO in CONT mode observe that HFO modulation does not occur during any phase of pressure cycle 7 With HFO in INSP mode observe that HFO modulation occurs during inspiratory phase only 8 With HFO in EXP mode observe that HFO modulation does not occur during an...

Page 53: ... mode Select 30 BPM with 1 second INSP time Set an inspiratory pressure of 30 cmH2O Set HIGH alarm to 60 cmH2O CYCLE FAIL alarm to 20 cmH2O and LOW alarm to 20 cmH2O Select a display frame time of 2 seconds Observe the pressure wave With the PRESSURE WAVE switch in the square position the pressure waveform rising edge should be fast nearly vertical With the PRESSURE WAVE switch in the slow rise po...

Page 54: ...H2O To generate a high pressure alarm condition with a standard patient circuit fitted to the ventilator occlude the expiratory limb and note that 4 The Fresh Gas supply solenoid valve is de energized leak alarm is activated 5 Airway pressure is between 10 cmH2O and 25 cmH2O while the expiratory limb is occluded 6 Fresh Gas supply flow rate is between 0 8 L min and 1 2 L min when expiratory limb i...

Page 55: ... pressure waveform is not present 3 Measure DC voltage on SV5 socket and ensure voltage is 24V 4 Switch HFO mode switch to OFF position and ensure voltage on SV5 socket drops towards 0V 5 Reconnect SV5 plug and socket 13 14 Verifying Pressure Drift Detection Using a short length of 1 8 Tygon connect a 2ml syringe to port P1 on pressure transducer PTR1 on the A702 board Monitor the digital pressure...

Page 56: ... frequency to 10Hz Set the CPAP regulator fully anti clockwise 2 Set the OSCILLATOR pressure regulator to 100cmH2O 3 Occlude the ET patient connector 4 Verify that the mean pressure level is not greater than 6 cmH2O Note If the reading is outside the stated limits check the seating of the exhalation block and that the rotating jet assembly jets are not blocked ...

Page 57: ...Issue 10 01 10 2004 Page 57 of 258 Technical Specification ...

Page 58: ...P INSP CONT Frequency Range 3 20Hz 1Hz resolution Delta P Range 0 120cmH2O peak to peak Mean Airway Range 0 35cmH2O 14 2 Displays 240 128 pixel backlit LCD display Selectable pressure range 5 to 60 cmH2O or 60 to 60 cmH2O Selectable timebase frame 6 4 3 2 1 0 5 seconds showing pressure wave form LOW CYCLE FAIL HIGH alarm settings and HFO rate Freeze facility 40 Segment bargraph display showing pre...

Page 59: ...ush button Invokes a single manual breath Alarm Mute and Reset Push buttons Mute active for 60 seconds approx Display Freeze push button Active for 60 seconds approx Trigger Sensitivity Control Range 2ml 0 5 sec max To 10ml 0 5sec min when using SLE N2188 patient circuit HIGH CYCLE FAIL LOW pressure alarm setting controls Resolution 1cmH2O on LCD 2cmH2O on bar graph Display Timebase selector switc...

Page 60: ...s etc Voltage 100 250V 50 60Hz Power 120VA Fuses 220 250V 50 60Hz Fuse T1 0A 100 120V 50 60Hz Fuse T2 0A Air and O2 3 5 bar Operating Environment Temp 10 40 C Humidity 0 90 non condensing Pressure 700 to 1060hPa Transport and Storage conditions Temp 40 to 70 C Humidity 0 90 non condensing Pressure 700 to 1060hPa Size Ventilator only 37cms W 39cms H 32cms D Height on pole 141cms Weight Ventilator O...

Page 61: ...ch input in turn Open circuit input fault conditions are detected by software and pull up resistor array RU3 Switched input parameters Mode Reset Mute and Pressure display Mode are scanned by U12 Confirmation of correct solenoid valve energisation voltages is fed to U14 14 by potential divider R34 R32 and clamp D3 Supply voltage supervisor U7 will attempt to reset the processor U14 9 should the lo...

Page 62: ...f these signals sets a bistable and the other resets it U25A and B The output from the bistable is monitored by an LM2917 tachometer IC U26 Should the pulse train stop then T4 is switched off and the HFO solenoid SV4 is de energised thus cutting off the gas supply to the rotating jet assembly In addition during normal HFO operating conditions T4 is periodically switched off by T3 in response to an...

Page 63: ...he instantaneous pressure signal derived from the A0702 04 buffered transducer output These four input voltages are first buffered and conditioned before being time multiplexed via the 4066 analogue switch U31 Oscillator U19 drives a counter U18 which is used to sequentially enable U31A B C and D The multiplexed signal is then used to drive the bargraph PCB A0737 15 0 4 7 Processor System All alar...

Page 64: ... the oxygen concentration delivered by the blender The voltage output from this cell is input to U4 LT1006 and associated components which condition the cell output voltage to the range 0 4 5V This voltage is then presented to the ADC U18 4 on the A0702 04 PCB and is used to display the FIO2 The alarm board also contains a battery powered alarm circuit consisting of BT1 and BZ3 The circuit is comp...

Page 65: ...s to drive the HFO stepper motor This circuit is operative in all HFO modes 15 0 7 2 HFO Start up Motor PCB assembly A0756 This PCB may be fitted to revision B Motor drive board A0739 02 issue 1 The PCB is positioned on connector U3 of the main board and carries RC4152 that would originally be positioned on the board The purpose of the board is to prevent the motor stalling when the ventilator is ...

Page 66: ...with 8V offset is applied to the window comparator comprising U1C and U1D The window comparator will provide an output if the differential voltage Diff passes above the voltage at High or below the voltage at Low A high signal output from the window comparator will cause Q1 to conduct thereby grounding the Drift Alarm output signal and signalling an alarm condition to the processor system on the A...

Page 67: ...old Cathode Fluorescent backlighting provided by a tube mounted on the lower edge of the module The cold cathode tube is powered by an inverter mounted on the A0739 02 board The inverter provides an ac voltage of 900V rms The digital interface to the LCD module consists of a 20 way ribbon cable comprising both data and control lines Also the negative voltage for the LCD drive is supplied from this...

Page 68: ...Page 68 of 258 Issue 10 01 10 2004 15 1 Pneumatic Circuit For access to the pneumatic unit section 3 2 on page 19 Schematic representation of the SLE 2000 HFO pneumatics Image sm0006_001 ...

Page 69: ...of 258 15 1 1 Pneumatic Layout There are three possible pneumatic layouts within the pneumatic unit Schematic 1 For HFO ventilators with no proximal airway purge Schematic 2 For HFO ventilators with Version 1 proximal airway purge ...

Page 70: ...ication Indicated in photograph 15 1 2 1 Ventilator with No Proximal Airway Purge Fa cility The proximal airway tube from the electronic bulkhead to the outlet port should be unbroken Reference Schematic 1 15 1 2 2 Ventilator with Version 1 Proximal Airway Purge The proximal airway tube should be split by a Y connector One limb should run to the proximal airway outlet port the other limb should co...

Page 71: ...atory airway pressure falls rapidly as in square mode REG2 0 to 4bar CPAP is also supplied from the oxygen blender This front panel mounted regulator controls the flow of blended gas from the CPAP nozzle in the exhalation block This gas being a constant flow in opposition to the fresh gas flow creates a CPAP PEEP pressure in the patient circuit NOTE Any changes of CPAP pressure will also change th...

Page 72: ...bove 80cmH2O 15 1 4 HFO Operation HFO pressure is determined by a 0 4Bar panel mounted pressure regulator REG4 resulting in HFO peak airway pressures in the range 0 to 45cmH2O The HFO driving gas stream is rotated in the exhalation block by the rotating nozzle assembly at a rate determined by the HFO motor speed Solenoid valve SV4 is de energised in the event of a motor drive failure thus cutting ...

Page 73: ...Issue 10 01 10 2004 Page 73 of 258 Troubleshooting Chart ...

Page 74: ...le valve Adjust RV501 to trip alarm at 17 5 cmH2O Replace solenoid Block Alarm audible visual Fresh gas filter blocked Fresh gas restrictor blocked Replace Autoclaveable filter P No N2029 Replace circuit P No N2188 Blender Alarm audible when both gases connected Alarm shuttle sticking Air O2 differential pressure exceeded Compressor Remove both gases and re apply the O2 first and then the Air Or t...

Page 75: ... per service manual Set up as per service manual Fan Alarm audible visual Faulty fan assembly Replace assembly with SLE approved part System Fail audible visual Ensure 5V is present at PSU Replace PSU CPAP Unable to set desired pres sure Faulty patient circuit Incorrectly assembled patient circuit Exhalation block located incorrectly Regulator cap is in LOCKED position Jammed regulator CPAP nozzle...

Page 76: ... Faulty patient circuit Incorrectly assembled patient circuit Exhalation block located incorrectly Regulator cap is in LOCKED position Jammed regulator Jet nozzle blocked High alarm condition Replace circuit Reassemble as per drawing sup plied with circuit Relocate the block assembly Pull regulator cap out to release from locked status Replace regulator Unblock nozzle Replace rotating jet assembly...

Page 77: ...or INSP pot Replace pot assembly SOL message Displayed in BPM window O S of solenoid circuitry Check wiring and solenoids Use dummy load LCD measurements vary from that displayed by pressure display Calibration of transducer Verify and adjust as required the calibration of PTR1 to ADC Buff ered output ...

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Page 79: ...Issue 10 01 10 2004 Page 79 of 258 Circuit Details ...

Page 80: ...Page 80 of 258 Issue 10 01 10 2004 17 Circuit Details 17 1 AS A0700 02 Display Board Assembly ...

Page 81: ...Issue 10 01 10 2004 Page 81 of 258 17 1 1 CD A0700 02 Display Board Circuit Diagram ...

Page 82: ...8 Display extender board 1 00 ITEM 2 D0406 1N4148 2 00 D1 D2 D0546 LED Red Rectangular LSB480EH 1 00 LED 7 M0307 Terminal Pin Pcb single sided 4 00 ITEM 5 D0590 Display 7 Segment MAN4640A 16 00 DISP 1 7 DISP 9 17 R0424 330R Resistor 1 0 25W SMA0207 1 00 R408 R0416 150R Resistor 1 0 25W SMA0207 1 00 R407 S0212 IC Socket 16 way DIL 2 00 SK1 SK2 S0445 Socket 14 way DIL 15 00 ITEM 6 DISP1 7 DISP9 14 D...

Page 83: ...Issue 10 01 10 2004 Page 83 of 258 17 2 AS A0701 02 LED PCB Assembly ...

Page 84: ...Page 84 of 258 Issue 10 01 10 2004 17 2 1 CD A0701 02 LED Board Circuit Diagram ...

Page 85: ... Used Component Reference s J0701 LED pcb blank 1 00 ITEM 1 PCB D0308 LED Green Rectangular LGB480EH 3 00 LED2 3 4 D0508 74HC00 1 00 U400 M0307 Terminal Pin Pcb single sided 13 00 ITEM 5 Wire pin 1 10 X O N R0463 10K Resistor 1 0 25W SMA0207 2 00 R403 404 R0416 151R Resistor 1 0 25W SMA0207 3 00 R401 R402 R405 S0242 IC Socket 14 way DIL 1 00 ITEM 6 U400 M0718 Label PCB Identification 1 00 ITEM 7 ...

Page 86: ...e information SI 000201 Leak Alarm Trigger Threshold on page 236 Alarm sounder failing to operate in fresh gas blocked conditions AS A0702 04 Sht 1 Issue 5 No change AS A0702 04 Sht 2 Issue 5 Modification to show track cut between C500 to U500 pin 7 Connection of link between C500 and U500 pin 8 and connection of a 68M resistor across pin 5 and 7 CD A0702 04 issue 4 Modification of circuit diagram...

Page 87: ...Issue 10 01 10 2004 Page 87 of 258 17 3 AS A0702 04 CPU PCB Issue 2 Sheet 1 of 2 ...

Page 88: ...Page 88 of 258 Issue 10 01 10 2004 17 3 1 AS A0702 04 CPU PCB Issue 1 Sheet 2 of 2 ...

Page 89: ...Issue 10 01 10 2004 Page 89 of 258 17 3 2 CD A0702 04 CPU Board Circuit Diagram Issue 2 A3 version on page 189 of circuit diagram appendix ...

Page 90: ...0461 33pF Capacitor 100V 10 Ceram 2 00 Each C13 C14 C0462 luF Capacitor 50 63V 10 MKS2 14 00 Each C5 7 11 17 24 C29 C200 C20S D0284 BZX79C4V7 was BZY88C 4v7 1 00 Each D3 D0288 LM358N 1 00 Each when pre fix is not S for PTR2 D0298 ICM7218DlJ1 28 Pin Harris 2 00 Each U1 U2 D0305 ADC0809CCN NSC 1 00 Each U18 D0320 74HC132N 1 00 Each U3 D0336 BC337 4 00 Each Q1 Q2 Q500 Q502 D0402 lN4007 Plastic Diode ...

Page 91: ...tor 0 25W 1 2 00 Each R24 R39 R0350 1K x 8 Resistor Network 1 00 Each RU2 R0351 10K x 8 Resistor Network 1 00 Each RU1 R0416 150R Resistor 1 0 25W SMA0207 7 00 Each R25 R29 R509 R511 R0428 470R Resistor 1 0 25W 2 00 Each R41 R60 R0436 1 0K Resistor 1 0 25W SMA0207 6 00 Each R12 R30 R31 R205 R207 R0445 2K49 Resistor 1 0 25W SMA0207 1 00 Each R23 R0449 3 32K Resistor 1 0 25W SMA 2 00 Each R35 R37 R0...

Page 92: ...K Trimmer cermet top adjust 1 00 Each RV6 V0405 10K Trimmer cermet top adj 5 00 Each RV2 RV5 RV10 V0406 20K Trimmer cermet top adjust 1 00 Each RV202 V0410 500K Trimmer 1 00 Each RV200 V0414 10K Trimmer cermet top adj 3 00 Each RV500 RV502 H3116 M3 x 16 Pan Hd Pozi s st 2 00 Each ITEM 22 H3108 M3 x 8 Pan Hd Pozi s st 2 00 Each ITEM 21 H3225 M3 x 25 Csk Hd Pozi s st 2 00 Each ITEM 23 H2316 M2 5 X 1...

Page 93: ...Issue 10 01 10 2004 Page 93 of 258 17 4 AS A0702 04 CPU PCB Issue 3 Sheet 1 of 2 ...

Page 94: ...Page 94 of 258 Issue 10 01 10 2004 17 4 1 AS A0702 04 CPU PCB Issue 3 Sheet 2 of 2 ...

Page 95: ...Issue 10 01 10 2004 Page 95 of 258 17 4 2 CD A0702 04 CPU PCB Circuit Diagram Issue 3 A3 version on page 191 of circuit diagram appendix ...

Page 96: ...33pF Capacitor 100V 10 Ceram 2 00 Each C13 C14 C0462 luF Capacitor 50 63V 10 MKS2 14 00 Each C5 7 11 17 24 C29 C200 C20S C0481 100nF Capacitor 50V 1 00 Each C2 D0284 BZX79C4V7 was BZY88C 4v7 1 00 Each D3 D0288 LM358N 1 00 Each when pre fix is not S for PTR2 D0298 ICM7218DlJ1 28 Pin Harris 2 00 Each U1 U2 D0305 ADC0809CCN NSC 1 00 Each U18 D0320 74HC132N 1 00 Each U3 D0336 BC337 4 00 Each Q1 Q2 Q50...

Page 97: ...0 25W SMA0207 1 00 Each R36 R0349 24K Resistor 0 25W 1 2 00 Each R24 R39 R0350 1K x 8 Resistor Network 1 00 Each RU2 R0351 10K x 8 Resistor Network 1 00 Each RU1 R0416 150R Resistor 1 0 25W SMA0207 7 00 Each R25 R29 R509 R511 R0428 470R Resistor 1 0 25W 2 00 Each R41 R60 R0436 1 0K Resistor 1 0 25W SMA0207 6 00 Each R12 R30 R31 R205 R207 R0445 2K49 Resistor 1 0 25W SMA0207 1 00 Each R23 R0449 3 32...

Page 98: ...b 1 00 Each ITEM 2 V0404 5 0K Trimmer cermet top adjust 1 00 Each RV6 V0405 10K Trimmer cermet top adj 5 00 Each RV2 RV5 RV10 V0406 20K Trimmer cermet top adjust 1 00 Each RV202 V0410 500K Trimmer 1 00 Each RV200 V0414 10K Trimmer cermet top adj 3 00 Each RV500 RV502 H3116 M3 x 16 Pan Hd Pozi s st 2 00 Each ITEM 22 H3108 M3 x 8 Pan Hd Pozi s st 2 00 Each ITEM 21 H3225 M3 x 25 Csk Hd Pozi s st 2 00...

Page 99: ...Issue 10 01 10 2004 Page 99 of 258 17 5 AS A0702 04 CPU PCB Issue 5 Sheet 1 of 2 ...

Page 100: ...Page 100 of 258 Issue 10 01 10 2004 17 5 1 AS A0702 04 CPU PCB Issue 5 Sheet 2 of 2 ...

Page 101: ...Issue 10 01 10 2004 Page 101 of 258 17 5 2 CD A0702 04 CPU PCB Circuit Diagram Issue 4 A3 version on page 193 of circuit diagram appendix ...

Page 102: ...33pF Capacitor 100V 10 Ceram 2 00 Each C13 C14 C0462 luF Capacitor 50 63V 10 MKS2 14 00 Each C5 7 11 17 24 C29 C200 C20S C0481 100nF Capacitor 50V 1 00 Each C2 D0284 BZX79C4V7 was BZY88C 4v7 1 00 Each D3 D0288 LM358N 1 00 Each when pre fix is not S for PTR2 D0298 ICM7218DlJ1 28 Pin Harris 2 00 Each U1 U2 D0305 ADC0809CCN NSC 1 00 Each U18 D0320 74HC132N 1 00 Each U3 D0336 BC337 4 00 Each Q1 Q2 Q50...

Page 103: ...0 25W SMA0207 1 00 Each R36 R0349 24K Resistor 0 25W 1 2 00 Each R24 R39 R0350 1K x 8 Resistor Network 1 00 Each RU2 R0351 10K x 8 Resistor Network 1 00 Each RU1 R0416 150R Resistor 1 0 25W SMA0207 7 00 Each R25 R29 R509 R511 R0428 470R Resistor 1 0 25W 2 00 Each R41 R60 R0436 1 0K Resistor 1 0 25W SMA0207 6 00 Each R12 R30 R31 R205 R207 R0445 2K49 Resistor 1 0 25W SMA0207 1 00 Each R23 R0449 3 32...

Page 104: ...pcb 1 00 Each ITEM 2 V0404 5 0K Trimmer cermet top adjust 1 00 Each RV6 V0405 10K Trimmer cermet top adj 5 00 Each RV2 RV5 RV10 V0406 20K Trimmer cermet top adjust 1 00 Each RV202 V0410 500K Trimmer 1 00 Each RV200 V0414 10K Trimmer cermet top adj 3 00 Each RV500 RV502 H3116 M3 x 16 Pan Hd Pozi s st 2 00 Each ITEM 22 H3108 M3 x 8 Pan Hd Pozi s st 2 00 Each ITEM 21 H3225 M3 x 25 Csk Hd Pozi s st 2 ...

Page 105: ...red additional components See board drawing AS A0736 03 issue 4 on page 111 and circuit diagram CD A0736 03 issue 3 on page 112 Revision G Incorporates resistors R122 and R123 See board drawing AS A0736 03 issue 5 on page 116 and circuit diagram CD A0736 03 issue 4 on page 117 Revision G As above Circuit diagram modified to include extra 470pF capacitor mounted on rear of C11 See board drawing AS ...

Page 106: ...Page 106 of 258 Issue 10 01 10 2004 17 6 AS A0736 03 Main PCB Revision E Issue 3 Note Check the revision status of the main board ...

Page 107: ...10 01 10 2004 Page 107 of 258 17 6 1 CD A0736 03 Main PCB Circuit Diagram Issue 2 For Revision E Main Board Note Check the revision status of the main board A3 version on page 195 of circuit diagram appendix ...

Page 108: ...or 25V 20 Elect 1 00 Each C14 C0450 O luF Capacitor 63V 10 MKS2 36 00 Each C3 6 C16 C23 31 C33 C54 C0462 luF Capacitor 50 63V 10t MXS2 7 00 Each C8 C17 C18 C21 h C60 C0469 lOuF Capacitor 35V 20 Tant 1 00 Each C9 C0478 0 0047uF Cap 63v 20 polyester 1 00 Each C11 D0250 BZX79C6V8 1 00 Each Z3 D0276 74LS373 1 00 Each U33 D0299 SN74LS02N 1 00 Each U9 D0302 74LS74AN 1 00 Each U17 D0305 ADC0809CCN NSC 1 ...

Page 109: ...41612 64 Way 90 deg Plug 1 00 Each PLA P0455 20 way IDC Header Plug 1 00 Each PL1 P0464 12way P C B Header Straight 0 50 Each ITEM 20 cut into 3x2 way JP R0228 8K2 1 50PPM 0 25W 4 00 Each R28 31 94 96 R0232 16K 1 50PPM 0 25W 2 00 Each R115 R117 R0280 470R Resistor 1 0 25W Met flm 1 00 Each R47 R0406 20R Resistor 1 0 25W 2 00 Each R27 R33 R0407 22R Resistor 1S 0 25W SMA0207 1 00 Each R2F R0413 100R...

Page 110: ...207 2 00 Each R97 R98 R0556 10K x 8 Resistor Network 1 00 Each RP1 R0557 lK0 Resistor 5t 1W 250PPM PR01 1 00 Each R37 R0575 21K 125w Precision Resistor 1 00 Each R80 50209 IC Socket 28 way DIL 3 00 Each ITEM 5 S0212 IC Socket 16 way DIL 7 00 Each ITEM 6 S0227 IC Socket 40 way DIL 2 00 Each ITEM 7 S0237 IC Socket 20 way DIL 5 00 Each ITEM 8 S0241 IC Socket 8 way DIL 4 00 Each ITEM 9 S0242 IC Socket...

Page 111: ...Issue 10 01 10 2004 Page 111 of 258 17 7 AS A0736 03 Main PCB Revision F Issue 4 Note Check the revision status of the main board ...

Page 112: ...12 of 258 Issue 10 01 10 2004 17 7 1 CD A0736 03 Main PCB Circuit Diagram Issue 3 For Revision F Main Board Note Check the revision status of the main board A3 version on page 197 of circuit diagram appendix ...

Page 113: ...20 Elect 1 00 Each C14 C0450 0 luF Capacitor 63V 10 MKS2 36 00 Each C3 6 C16 C23 31 C33 C54 C0462 luF Capacitor 50 63V 10t MXS2 7 00 Each C8 C17 C18 C21 h C60 C0469 l0uF Capacitor 35V 20 Tant 1 00 Each C9 C0478 0 0047uF Cap 63v 20 polyester 1 00 Each C11 D0250 BZX79C6V8 1 00 Each Z3 D0276 74LS373 1 00 Each U33 D0299 SN74LS02N 1 00 Each U9 D0302 74LS74AN 1 00 Each U17 D0305 ADC0809CCN NSC 1 00 Each...

Page 114: ...ed 1 00 Each ITEM 16 M0718 Label PCB Identification 1 00 Each ITEM 17 P0230 DIN41612 64 Way 90 deg Plug 1 00 Each PLA P0455 20 way IDC Header Plug 1 00 Each PL1 P0464 12way P C B Header Straight 0 50 Each ITEM 20 cut into 3x2 way JP R0228 8K2 1 50PPM 0 25W 4 00 Each R28 31 94 96 R0232 16K 1 50PPM 0 25W 2 00 Each R115 R117 R0280 470R Resistor 1 0 25W Met flm 1 00 Each R47 R0406 20R Resistor 1 0 25W...

Page 115: ...3M Resistor 1 0 25W SMA0207 2 00 Each R97 R98 R0556 10K x 8 Resistor Network 1 00 Each RP1 R0557 lK0 Resistor 5t 1W 250PPM PR01 1 00 Each R37 R0575 21K 125w Precision Resistor 1 00 Each R80 50209 IC Socket 28 way DIL 3 00 Each ITEM 5 S0212 IC Socket 16 way DIL 7 00 Each ITEM 6 S0227 IC Socket 40 way DIL 2 00 Each ITEM 7 S0237 IC Socket 20 way DIL 5 00 Each ITEM 8 S0241 IC Socket 8 way DIL 5 00 Eac...

Page 116: ...Page 116 of 258 Issue 10 01 10 2004 17 8 AS A0736 03 Main PCB Revision G Issue 5 Note Check the revision status of the main board ASSY No SER No ISS TESTED ...

Page 117: ...10 01 10 2004 Page 117 of 258 17 8 1 CD A0736 03 Main PCB Circuit Diagram Issue 4 For Revision G Main Board Note Check the revision status of the main board A3 version on page 199 of circuit diagram appendix ...

Page 118: ...0 Each C14 C0450 O luF Capacitor 63V 10 MKS2 36 00 Each C3 6 C16 C23 31 C33 C54 C0462 luF Capacitor 50 63V 10t MXS2 7 00 Each C8 C17 C18 C21 h C60 C0469 lOuF Capacitor 35V 20 Tant 1 00 Each C9 C0478 0 0047uF Cap 63v 20 polyester 1 00 Each C11 D0250 BZX79C6V8 1 00 Each Z3 D0276 74LS373 1 00 Each U33 D0299 SN74LS02N 1 00 Each U9 D0302 74LS74AN 1 00 Each U17 D0305 ADC0809CCN NSC 1 00 Each U5 D0329 74...

Page 119: ... Identification 1 00 Each ITEM 17 P0230 DIN41612 64 Way 90 deg Plug 1 00 Each PLA P0455 20 way IDC Header Plug 1 00 Each PL1 P0464 12way P C B Header Straight 0 50 Each ITEM 20 cut into 3x2 way JP R0228 8K2 1 50PPM 0 25W 4 00 Each R28 31 94 96 R0232 16K 1 50PPM 0 25W 2 00 Each R115 R117 R0280 470R Resistor 1 0 25W Met flm 1 00 Each R47 R0406 20R Resistor 1 0 25W 2 00 Each R27 R33 R0407 22R Resisto...

Page 120: ...SMA0207 2 00 Each R97 R98 R0556 10K x 8 Resistor Network 1 00 Each RP1 R0557 lK0 Resistor 5t 1W 250PPM PR01 1 00 Each R37 R0575 21K 125w Precision Resistor 1 00 Each R80 50209 IC Socket 28 way DIL 3 00 Each ITEM 5 S0212 IC Socket 16 way DIL 7 00 Each ITEM 6 S0227 IC Socket 40 way DIL 2 00 Each ITEM 7 S0237 IC Socket 20 way DIL 5 00 Each ITEM 8 S0241 IC Socket 8 way DIL 5 00 Each ITEM 9 S0242 IC So...

Page 121: ...Issue 10 01 10 2004 Page 121 of 258 17 9 AS A0736 03 Main PCB Revision G Issue 5 Note Check the revision status of the main board ASSY No SER No ISS TESTED ...

Page 122: ...22 of 258 Issue 10 01 10 2004 17 9 1 CD A0736 03 Main PCB Circuit Diagram Issue 5 For Revision G Main Board Note Check the revision status of the main board A3 version on page 201 of circuit diagram appendix ...

Page 123: ...acitor 63V 10 MKS2 36 00 Each C3 6 C16 C23 31 C33 C54 C0462 luF Capacitor 50 63V 10t MXS2 7 00 Each C8 C17 C18 C21 h C60 C0469 l0uF Capacitor 35V 20 Tant 1 00 Each C9 C0478 0 0047uF Cap 63v 20 polyester 1 00 Each C11 C0512 470pF Cap 100v 10 ceramic 1 00 Each in parallel to C11 mounted on rear D0250 BZX79C6V8 1 00 Each Z3 D0276 74LS373 1 00 Each U33 D0299 SN74LS02N 1 00 Each U9 D0302 74LS74AN 1 00 ...

Page 124: ...718 Label PCB Identification 1 00 Each ITEM 17 P0230 DIN41612 64 Way 90 deg Plug 1 00 Each PLA P0455 20 way IDC Header Plug 1 00 Each PL1 P0464 12way P C B Header Straight 0 50 Each ITEM 20 cut into 3x2 way JP R0228 8K2 1 50PPM 0 25W 4 00 Each R28 31 94 96 R0232 16K 1 50PPM 0 25W 2 00 Each R115 R117 R0280 470R Resistor 1 0 25W Met flm 1 00 Each R47 R0406 20R Resistor 1 0 25W 2 00 Each R27 R33 R040...

Page 125: ...SMA0207 2 00 Each R97 R98 R0556 10K x 8 Resistor Network 1 00 Each RP1 R0557 lK0 Resistor 5t 1W 250PPM PR01 1 00 Each R37 R0575 21K 125w Precision Resistor 1 00 Each R80 50209 IC Socket 28 way DIL 3 00 Each ITEM 5 S0212 IC Socket 16 way DIL 7 00 Each ITEM 6 S0227 IC Socket 40 way DIL 2 00 Each ITEM 7 S0237 IC Socket 20 way DIL 5 00 Each ITEM 8 S0241 IC Socket 8 way DIL 5 00 Each ITEM 9 S0242 IC So...

Page 126: ...Page 126 of 258 Issue 10 01 10 2004 17 10 AS A0737 01 Bargraph Display PCB Assembly ...

Page 127: ...Issue 10 01 10 2004 Page 127 of 258 17 10 1 CD A0737 01 Bargraph Display PCB Circuit Diagram ...

Page 128: ...itor 63V 10 MKS2 3 00 C1 C2 C4 R0429 499R Resistor 1 0 25W SMA0207 1 00 R1 R0436 1 0K Resistor 1 0 25W SMA0207 1 00 R2 R0439 1 5K Resistor 1 0 25W SMA0207 1 00 R3 R0442 2 0K Resistor 1 0 25W SMA0207 1 00 R4 R0212 20K Resistor 1 0 25W SMA0207 3 00 R5 R7 D0629 LM3914N 4 00 U1 U4 D0630 LED Array 10 bar DIL 4 00 U5 U8 S0237 IC Socket 20 way DIL 4 00 ITEM 5 U5 U8 S0239 IC Socket 18 way DIL 4 00 ITEM 6 ...

Page 129: ...Issue 10 01 10 2004 Page 129 of 258 17 11 AS A0738 02 Alarm PCB Assembly ...

Page 130: ...Page 130 of 258 Issue 10 01 10 2004 17 11 1 CD A0738 02 Alarm PCB Circuit Diagram ...

Page 131: ...0463 10K Resistor 1 0 25W SMA0207 8 00 R5 R10 R32 R33 R0445 2K49 Resistor 1 0 25W SMA0207 3 00 R11 R15 R18 R0501 1 0M Resistor 1 0 25W SMA0207 1 00 R12 R0425 332R Resistor 1 0 25W SMA0207 1 00 R13 R0405 10R Resistor 1 0 25W SMA0207 1 00 R14 R0478 45K3 Resistor 1 0 25W SMA0207 1 00 R16 R0436 1 0K Resistor 1 0 25W SMA0207 4 00 R17 R22 R27 R31 R0448 3K16 Resistor 1 0 25W SMA0207 1 00 R19 R0316 820R R...

Page 132: ... M3 Plain Washer s st 2 00 ITEM 30 H3094 M3 Shakeproof Washer s st 2 00 ITEM 40 H3091 M3 Nut Full s st 2 00 ITEM 50 H2106 M2 x 6 Pan Hd Pozi s st 2 00 ITEM 21 H2091 M2 Nut Full s st 2 00 ITEM 51 H2093 M2 Plain Washer s st 2 00 ITEM 31 H2094 M2 Shakeproof Washer s st 2 00 ITEM 41 M0718 Label PCB Identification 1 00 ITEM 17 M0307 Terminal Pin Pcb single sided 34 00 ITEM 8 Part Number Component Descr...

Page 133: ... page 134 and circuit diagram CD A0739 02 issue 1 on page 136 Revision C Incorporates HFO Start up Motor PCB assembly A0756 See board drawing AS A0739 02 issue 3 on page 139 and circuit diagram CD A0739 02 issue 3 on page 140 Also see service information SI 000101 Modification of SLE 2000 HFO motor drive circuit board on page 233 ...

Page 134: ...Page 134 of 258 Issue 10 01 10 2004 17 12 AS A0739 02 Motor drive PCB Issue 1 Sheet 1 Revision B ...

Page 135: ...Issue 10 01 10 2004 Page 135 of 258 17 12 1 AS A0739 02 Motor drive PCB Issue 1 Sheet 2 Revision B ...

Page 136: ...Page 136 of 258 Issue 10 01 10 2004 17 12 2 CD A0739 02 Motor drive PCB Circuit Diagram Issue 1 Revision B ...

Page 137: ...0625 L297 1 00 Each U1 D0626 L298N 1 00 Each U2 D0627 RC4152 1 00 Each U3 D0428 LM7812CT 1 00 Each U4 D0432 LM7805CT 1 00 Each U5 D0601 01 CXA L1OL Inverter 1 00 Each U6 V0405 10K Trimmer cermet top adj 1 00 Each RV1 R0451 3 92K Resistor 1 0 25W SMA020 1 00 Each R1 R0469 22 1K Resistor 1 0 25W SMA020 1 00 Each R2 R0463 10K Resistor 1 0 25W SMA0207 4 00 Each R3 R14 R17 R20 R0574 2 0R Resistor 1 0 2...

Page 138: ... M3 Nut Full s st 7 00 Each ITEM 26 H2594 M2 5 Shakeproof Washer s st 2 00 Each ITEM 27 H2593 M2 5 Plain Washer s st 2 00 Each ITEM 31 H2595 M2 5 Plain Nylon Washer 2 00 Each ITEM 32 H2591 M2 5 Nut Full s st 4 00 Each ITEM 25 H2316 M2 5 X 16 Pan Hd Pozi s st 2 00 Each ITEM 20 H3110 M3 x 10 Pan Hd Pozi s st 1 00 Each ITEM 21 H3108 M3 x 8 Pan Hd Pozi s st 1 00 Each ITEM 22 H3112 M3 x 12 Pan Hd Pozi ...

Page 139: ...Issue 10 01 10 2004 Page 139 of 258 17 13 AS A0739 02 Motor Drive PCB Issue 3 Revision C ...

Page 140: ...Page 140 of 258 Issue 10 01 10 2004 17 13 1 CD A0739 02 Motor drive PCB Circuit Diagram Issue 3 Revision C ...

Page 141: ...c Diode 3 00 Each D10 D11 D12 in new position D0406 1N4148 1 00 Each D14 D0428 LM7812CT 1 00 Each U4 D0432 LM7805CT 1 00 Each U5 D0601 01 CXA L1OL Inverter 1 00 Each U6 D0623 BAX16 Diode 1 00 Each D1 D0624 5401 Diode 8 00 Each D2 D9 D0625 L297 1 00 Each U1 D0626 L298N 1 00 Each U2 D0627 RC4152 1 00 Each U3 D0636 IRLU110 1 00 Each MOS1 D0651 1N5817 Schottky diode 1 00 Each D13 H2316 M2 5 X 16 Pan H...

Page 142: ...00 Each R6 R7 R0443 2 2K Resistor 1 0 25W SMA0207 1 00 Each R15 R0451 3 92K Resistor 1 0 25W SMA020 1 00 Each R1 R0460 7 5K Resistor 1 0 25W SMA0207 1 00 Each R16 R0463 10K Resistor 1 0 25W SMA0207 4 00 Each R3 R14 R17 R20 R0469 22 1K Resistor 1 0 25W SMA020 1 00 Each R2 R0486 100K Resistor 1 0 25W SMA0207 1 00 Each R19 R21 1 off added R0574 2 0R Resistor 1 0 25W SMA0207 8 00 Each R4 5 8 R9 R13 S0...

Page 143: ...Issue 10 01 10 2004 Page 143 of 258 17 14 AS A0756 HFO Motor Start Up PCB Issue 2 ...

Page 144: ...Used Component Reference s J0756 HFO Start up Motor Mod PCB 1 00 Each Rev A C0485 2 2uf Cap 63 50v 20 2F4 1 00 Each C1 D0406 1N4148 1 00 Each D1 D0627 RC4152N V F F V Converter 0 00 each U3 part of A0739 Assembly D0651 1N5817 Schottky Diode 1 00 Each D2 D0655 BC548c Bipolar Transistor 1 00 Each Q1 R0486 100K Resistor 1 0 25W SMA0207 1 00 Each R1 S0241 01 2 54mm P Std Profile DIL Socket 1 00 Each S...

Page 145: ...Issue 10 01 10 2004 Page 145 of 258 17 15 AS A0745 Pressure Drift Monitor Board Issue 1 ...

Page 146: ...Page 146 of 258 Issue 10 01 10 2004 17 15 1 CD A0745 Pressure Drift Monitor Board Circuit Diagram Issue 1 ...

Page 147: ...Issue 10 01 10 2004 Page 147 of 258 17 16 AS A0745 Pressure Drift Monitor Board Issue 2 ...

Page 148: ...Page 148 of 258 Issue 10 01 10 2004 17 16 1 CD A0745 Pressure Drift Monitor Board Circuit Diagram Issue 5 ...

Page 149: ...43PCOlD 1 00 Each PTR1 R0268 5K1 Resistor 18 0 25W SMA0207 1 00 Each R1 R0337 3K3 Resistor 1t 0 25W SMA0207 1 00 Each R7 R0457 6K8 Resistor 16 0 25W SMA0207 1 00 Each R8 R0463 lOK Resistor 18 0 25W SMA0207 1 00 Each R9 R0483 69 8K Resistor 1 _ 0 25W SMA020 1 00 Each R6 R0484 75K Resistor 18 0 25W 3 00 Each R2 R4 R5 R0486 lOOK Resistor 1 _ 0 25W SMA0207 0 00 Each NOT USED S0242 IC Socket 14 way DIL...

Page 150: ...Page 150 of 258 Issue 10 01 10 2004 17 17 Serial Interface Option CD A0702 03 ...

Page 151: ...Regulator 1 00 U24 D0250 BZX79C6V8 2 00 D300 301 R0443 2 2K Resistor 1 0 25W SMA0207 2 00 R300 301 R0432 680R Resistor 1 0 25W 2 00 R302 303 R0425 332R Resistor 1 0 25W SMA0207 2 00 R304 305 R0436 1 0K Resistor 1 0 25W SMA0207 2 00 R306 307 R0343 300K 1 50PPM 0 25W 1 00 R308 R0557 1K0 Resistor 5 1W 250PPM PR01 2 00 R309 310 C0433 1uF Capacitor 35V 20 Tantalum 1 00 C300 C0450 0 1uF Capacitor 63V 10...

Page 152: ...Page 152 of 258 Issue 10 01 10 2004 17 18 CD W0308 Wireloom Issue 6 A3 version on page 203 of circuit diagram appendix ...

Page 153: ...Issue 10 01 10 2004 Page 153 of 258 17 19 Front Panel ...

Page 154: ...Page 154 of 258 Issue 10 01 10 2004 17 20 SK0057 Power Supply Wiring Diagram ...

Page 155: ...Issue 10 01 10 2004 Page 155 of 258 17 21 CD W0307 Electronic Pneumatic Module interconnection ...

Page 156: ...Page 156 of 258 Issue 10 01 10 2004 17 22 Electronic Chassis Sheet 1 of 2 ...

Page 157: ...Issue 10 01 10 2004 Page 157 of 258 17 22 1 Electronic Chassis Sheet 2 of 2 ...

Page 158: ...y 3 00 ITEM 12 K0258 Knob Cap C110 Red 3 00 ITEM 13 M0211 Trim Tool unmodified 1 00 ITEM 20 M0284 1 amp Fuse Anti Surge 20mm 2 00 ITEM 21 M0266 Fuseholder 2 00 F1 F2 M0304 Cable Clips stick on 1 00 ITEM 22 M0701 02 80mm Fan Filter Front PAINTED 2 00 ITEM 23 M0714 Knob knurled thumb screw type1 3 00 ITEM 24 M0484 03 MN1500 1 5v AA size Cells 1 00 ITEM 25 M0701 04 80mm Fan Filter Insert Pad 2 00 ITE...

Page 159: ...ector socket 1 00 P0025 Mains Plug 13 Amp 3Pin 1 00 M0675 Terminal Receptacle 250 2 00 M0675 01 Boot Receptacle 250 2 00 P0211 01 Shroud for P0234 3 00 ITEM 42 M0677 Power supply NFS110 7902P 1 00 PSU M0677 01 Cover for psu M0677 1 00 P0025 03 3 amp Mains Fuse 1 00 M0712 PCB Guide 101 6mm long 6 00 Pk 10 M0712 01 PCB Guide 152 4 mm long 6 00 Pk 10 T0942 Window HFO EMC 1 00 T0704 Tubing holder 1 00...

Page 160: ...l airway purge See drawings AS A0L0203 issue 3 on page 161 Issue 4 For ventilator with SLE Part Nº N2524 01 motor assembly with Version 2 proximal airway purge See drawings AS A0L0203 issue 4 on page 169 Issue 5 For ventilator with SLE Part Nº N2524 02 motor assembly with Version 2 proximal airway purge See drawings AS A0L0203 issue 4 on page 177 ...

Page 161: ...Issue 10 01 10 2004 Page 161 of 258 17 23 Pneumatic Unit Assy AS L0203 Issue 3 17 23 1 AS L0203 Sheet 1 of 4 For ventilator with SLE Part Nº N2524 motor assembly See Motor assemblies on page 22 ...

Page 162: ...Page 162 of 258 Issue 10 01 10 2004 17 23 2 AS L0203 Sheet 2 of 4 For ventilator with SLE Part Nº N2524 motor assembly See Motor assemblies on page 22 ...

Page 163: ...Issue 10 01 10 2004 Page 163 of 258 17 23 3 AS L0203 Sheet 3 of 4 For ventilator with SLE Part Nº N2524 motor assembly See Motor assemblies on page 22 ...

Page 164: ...Page 164 of 258 Issue 10 01 10 2004 17 23 4 AS L0203 Sheet 4 of 4 For ventilator with SLE Part Nº N2524 motor assembly See Motor assemblies on page 22 ...

Page 165: ...y 1 00 Each ITEM 50 Drg 100249 W0307 Wiring Loom HFO CE Pneumatic 1 00 Each ITEM 51 M0303 07 Nylon Cable Clip 12 7 dia 1 00 Each ITEM 62 M0306 Screwlock Assembly female 2 00 Each ITEM 73 M0319 Compression spring SMALL 1 00 Each ITEM 21 M0402 Rubber Grommets 10 00 Each ITEM 30 M0673 01 Dome Plug Dia 25 4 PAINTED 1 00 Each ITEM 13 M0694 01M0694 Fan axial 24v 5 2 l s 60x60x25 1 00 Each ITEM 51c M0695...

Page 166: ...ch Sht 4 of drg ITEM 2 N2365 1631 01 M5 Single Banjo 7 00 Each Sht 4 of drg ITEM 3 N2366 1 8 Female Female Elbow 1 00 Each Sht 4 of drg ITEM 17 N2367 2500 1 8 Male Barrel 1 00 Each Sht 4 of drg ITEM 18 N2369 4 5 M5 Hosetail Male 8 00 Each Sht 4 of drg ITEM 5 N2370 M5 plug 2 00 Each Sht 4 of drg ITEM 8 N2370 01 Restrictor plug drilled 2 00 Each Sht 4 of drg ITEM 15 N2372 Polyurethane Tubing APU 5 3...

Page 167: ...rass Pan HD Pozi 2 00 Each Drg 100684 ITEM 9 H3091 M3 Nut Full s st 31 00 Each Sht 3 of drg ITEM 16 H3094 M3 S Proof Washer s st DIN6798 70 00 Each Sht 3 of drg ITEM 17 H3095 M3 Plain Washer Nylon 11 00 Each Sht 3 of drg ITEM 18 H3108 M3 x 8 Pan Hd Pozi s st 19 00 Each Sht 3 of drg ITEM 2 N2373 Polyurethane Tubing 6 4 APU 0 50 Metre Sht 4 of drg ITEM 20 P0436 03 25 Way D Plug Cover RFI EMI 1 00 Ea...

Page 168: ... drg ITEM 6 H3206 M3 x 6 Csk Hd Pozi s st 2 00 Each Drg 100684 ITEM 11 H3208 M3 x 8 Csk Hd Pozi s st 7 00 Each Sht 3 of drg ITEM 9 H3210 M3 x 10 Csk Hd Pozi s st 10 00 Each Sht 3 of drg ITEM 10 H3216 M3 x 16 Csk Hd Pozi s st 10 00 Each Sht 3 of drg ITEM 12 H3220 M3 x 20 Csk Hd Pozi s st 5 00 Each Sht 3 of drg ITEM 13 H3225 M3 x 25 Csk Hd Pozi s st 1 00 Each Sht 3 of drg ITEM 14 H4010 M4 x 10 Hex H...

Page 169: ...Issue 10 01 10 2004 Page 169 of 258 17 24 Pneumatic Unit Assy AS L0203 Issue 4 17 24 1 AS L0203 Sheet 1 of 4 For ventilator with SLE Part Nº N2524 01 motor assembly See Motor assemblies on page 22 ...

Page 170: ...Page 170 of 258 Issue 10 01 10 2004 17 24 2 AS L0203 Sheet 2 of 4 For ventilator with SLE Part Nº N2524 01 motor assembly See Motor assemblies on page 22 ...

Page 171: ...Issue 10 01 10 2004 Page 171 of 258 17 24 3 AS L0203 Sheet 3 of 4 For ventilator with SLE Part Nº N2524 01 motor assembly See Motor assemblies on page 22 ...

Page 172: ...Page 172 of 258 Issue 10 01 10 2004 17 24 4 AS L0203 Sheet 4 of 4 For ventilator with SLE Part Nº N2524 01 motor assembly See Motor assemblies on page 22 ...

Page 173: ... 00 Each ITEM 8B N2184 04 INSP Pressure Gauge 4 bar 1 00 Each ITEM 8C N2191 Oxygen Cell Sensor SLE2000 1 00 Each ITEM 40 N2195 04 Solenoid Valve 3 0mm c w Plug 1 00 Each ITEM 60 T0249 Volume Chamber Assy 1 00 Each ITEM 50 Drg 100249 W0307 Wiring Loom HFO CE Pneumatic 1 00 Each ITEM 51b Part Number Component Description Used Unit Component Reference s M0303 07 Nylon Cable Clip 12 7 dia 1 00 Each IT...

Page 174: ...TEM 7 N2362 5 3 M5 Male Stud Coupling 27 00 Each Sht 4 of drg ITEM 6 N2362 01 Coupling modified 3 00 Each Sht 4 of drg ITEM 14 N2363 6 4 M5 Male Stud Coupling 5 00 Each Sht 4 of drg ITEM 12 N2364 1610 5 3 M5 Banjo Ring Piece 7 00 Each Sht 4 of drg ITEM 2 N2365 1631 01 M5 Single Banjo Bolt 7 00 Each Sht 4 of drg ITEM 3 N2366 1 8 Female Female Elbow 1 00 Each Sht 4 of drg ITEM 17 N2367 2500 1 8 Male...

Page 175: ...Each Sht 4 of drg ITEM 13 T0478 SV2 Bypass Block Assembly 1 00 Each ITEM 32 T0481 Deflector 1 00 Each Sht 4 of drg ITEM 23 T0611 Guide Post 2 00 Each ITEM 84 T0612 Spacer flanged 4 00 Each ITEM 77 T0613 Spacer M3 Round Bar x 28mm lg 2 00 Each ITEM 80 T0613 01 Spacer M3 Round Bar x 59mm lg 3 00 Each ITEM 79 T0614 Cover fixed side with fan 1 00 Each ITEM 5 T0616 Block fixing Item 1 1 00 Each ITEM 23...

Page 176: ... 3 of drg ITEM 2 H3110 M3 x 10 Pan Hd Pozi s st 20 00 Each Sht 3 of drg ITEM 3 H3112 M3 x 12 Pan Hd Pozi s st 2 00 Each Sht 3 of drg ITEM 4 H3116 M3 x 16 Pan Hd Pozi s st 7 00 Each Sht 3 of drg ITEM 5 H3120 M3 x 20 Pan Hd Pozi s st 2 00 Each Drg 100684 ITEM 7 H3125 M3 x 25 Pan Hd Pozi s st 2 00 Each Sht 3 of drg ITEM 8 H3130 M3 x 30 Pan Hd Pozi s st 4 00 Each Sht 3 of drg ITEM 6 H3206 M3 x 6 Csk H...

Page 177: ...Issue 10 01 10 2004 Page 177 of 258 17 25 Pneumatic Unit Assy AS L0203 Issue 5 17 25 1 AS L0203 Sheet 1 of 4 For ventilator with SLE Part Nº N2524 02 motor assembly See Motor assemblies on page 22 ...

Page 178: ...Page 178 of 258 Issue 10 01 10 2004 17 25 2 AS L0203 Sheet 2 of 4 For ventilator with SLE Part Nº N2524 02 motor assembly See Motor assemblies on page 22 ...

Page 179: ...Issue 10 01 10 2004 Page 179 of 258 17 25 3 AS L0203 Sheet 3 of 4 For ventilator with SLE Part Nº N2524 02 motor assembly See Motor assemblies on page 22 ...

Page 180: ...Page 180 of 258 Issue 10 01 10 2004 17 25 4 AS L0203 Sheet 4 of 4 For ventilator with SLE Part Nº N2524 02 motor assembly ...

Page 181: ...EEP Pressure Gauge 4 bar 1 00 Each N2184 05 OSC Pressure Gauge 0 120cm 1 00 Each N2184 04 INSP Pressure Gauge 4 bar 1 00 Each N2191 Oxygen Cell Sensor SLE2000 1 00 Each N2195 04 Solenoid Valve 3 0mm c w Plug 1 00 Each T0249 Volume Chamber Assy 1 00 Each W0307 Wiring Loom HFO CE Pneumatic 1 00 Each Part Number Component Description Used Unit Component Reference s M0303 07 Nylon Cable Clip 12 7 dia ...

Page 182: ... 36 N2339 Z9 Y piece Connectors 2 00 Each Sht 4 of drg ITEM 27 N2360 5 3 1 8 Male Stud Elbow 4 00 Each Sht 4 of drg ITEM 1 N2360 64 6 4 1 8 Male Stud Elbow 5 00 Each Sht 4 of drg ITEM 28 N2361 5 3 1 8 Male Stud Coupling 1 00 Each Sht 4 of drg ITEM 7 N2362 5 3 M5 Male Stud Coupling 21 00 Each Sht 4 of drg ITEM 6 N2362 01 Coupling modified 3 00 Each Sht 4 of drg ITEM 14 N2363 6 4 M5 Male Stud Coupli...

Page 183: ...ve Cover 1 00 Each ITEM 89 T0241 Relief Valve Block 1 00 Each ITEM 90 T0243 Spacer solenoid 10 00 Each ITEM 29 T0250 Latch Block Finish Anodised 1 00 Each ITEM 18 T0251 Hinge Pins Short 1 00 Each ITEM 20 T0252 Catch Piece Finish Anodised 1 00 Each ITEM 19 T0280 01 Washer seal I D 4 9 O D 9 5 2 00 Each Sht 4 of drg ITEM 13 T0478 SV2 Bypass Block Assembly 1 00 Each ITEM 32 T0481 Deflector 1 00 Each ...

Page 184: ... H2106 03 M2 x 6mm Brass Pan HD Pozi 2 00 Each Drg 100684 ITEM 9 H3091 M3 Nut Full s st 33 00 Each Sht 3 of drg ITEM 16 H3094 M3 S Proof Washer s st DIN6798 70 00 Each Sht 3 of drg ITEM 17 H3095 M3 Plain Washer Nylon 11 00 Each Sht 3 of drg ITEM 18 H3108 M3 x 8 Pan Hd Pozi s st 21 00 Each Sht 3 of drg ITEM 2 H3110 M3 x 10 Pan Hd Pozi s st 20 00 Each Sht 3 of drg ITEM 3 H3112 M3 x 12 Pan Hd Pozi s ...

Page 185: ...ht 3 of drg ITEM 19 H4110 M4 x 10 Pan Hd Pozi s st 1 00 Each Sht 3 of drg ITEM 21 H9608 M3 x 8 Button Hd Socket s st 3 00 Each Sht 3 of drg ITEM 15 H9710 M4 x 10 Button Hd Socket s st 2 00 Each Sht of drg ITEM 22 Part Number Component Description Used Unit Component Reference s ...

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Page 187: ...Issue 10 01 10 2004 Page 187 of 258 18 A3 Circuit Diagram Appendix A3 circuit Diagram Appendix ...

Page 188: ...Page 188 of 258 Issue 10 01 10 2004 The following chapter contains A3 version of the circuit diagrams ...

Page 189: ...Page 189 of 258 CD A0702 04 Issue 2 ...

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Page 191: ...Page 191 of 258 CD A0702 04 Issue 3 ...

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Page 193: ...Page 193 of 258 CD A0702 04 Issue 4 ...

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Page 195: ...Page 195 of 258 CD A0736 03 Issue 2 Note Please check the revision status of the main board ...

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Page 197: ...Page 197 of 258 CD A0736 03 issue 3 Note Please check the revision status of the main board ...

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Page 199: ...Page 199 of 258 CD A0736 03 issue 4 Note Please check the revision status of the main board ...

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Page 201: ...Page 201 of 258 CD A0736 03 issue 5 Note Please check the revision status of the main board ...

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Page 203: ...Page 203 of 258 CD W0308 ...

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Page 205: ...Issue 10 01 10 2004 Page 205 of 258 Service Information and Technical Bulletins ...

Page 206: ...LE2000 HFO See page 218 SI 990306 Addition of the proximal airway purge Obsolete reference only See page 220 SI 990401 Slightly attenuated alarm sounder for the 12 24V voltage monitor See page 223 SI 990801 Enhanced EMC See page 225 SI 991101 Ventilator Power Supplies See page 230 SI 000101 Modification of SLE 2000 HFO motor drive circuit board See page 233 SI 000201 Leak Alarm Trigger Threshold S...

Page 207: ...ply Board A0703 via a lk_ 0 25 watt resistor to the spare pin 4 on the rear panel auxiliary output connector 7 Pin DIN The resistor should be connected directly to pin 4 and then sleeved with heatshrink sleeving The wire should follow the run of the existing cable loom using cable ties to hold it in place 2000 HFO Infant Ventilator Connect a wire from PLB pin 3 of the A0702 board to the spare pin ...

Page 208: ... screen Pin 3 0 Volts screen All other pins must be left unconnected IMPORTANT Ventilators and INOSYS units must be checked to verify correct operation after this modification has been carried out See the appropriate user manuals for these procedures ...

Page 209: ...be so effective at holding the cell in place New cells fitted to ventilators and replacement spares will now be provided with the foam pad stuck to the base of them This means that when the cell is replaced the foam pad is also replaced When fitting replacement cells it is now necessary to remove the old pad from the mounting base first so the new cell with the pad stuck to the bottom can be accom...

Page 210: ... Boards of A0736 03 or later will accept the replacement fans Parts Kit required to perform cooling fan replacement and circuit modification These parts are available as a kit Fan Replacement Kit N9008 Procedure for Modifying the fan fail circuit for replacement fans 1 Locate the fan fail circuit in the bottom left hand corner of the A0736 PCB comprising U23 and a group of six resistors on either ...

Page 211: ...1 are replaced in the ventilator chassis The modified circuit will not work with the original fans 6 Test the fan fail detect circuit before reassembly of the ventilator Testing of the modified fan fail detect circuit Short out JP3 emulating Fan2 fail and JP4 emulating Fan1 fail in turn and verify that the fan fail alarm is activated in each instance Circuit reference Remove Replace with stock no ...

Page 212: ...Page 212 of 258 Issue 10 01 10 2004 Circuit diagram before modification Circuit Diagram after modification ...

Page 213: ...60cmH2O as it is at 60cmH2O to within 20mV DIFF should be in the region of 8V Pay special attention to the indicated polarities when measuring voltages b Set the DC voltage between HIGH and LOW to 180mV 5mV using RV2 c Set the DC voltage between HIGH and DIFF to 90mV 5mV using RV1 d Repeat steps b and c until both voltages are correct to within 5mV Verify that the voltage between DIFF and LOW is 9...

Page 214: ...ing a short length of 1 8 Tygon connect a 2ml syringe to port P1 on pressure transducer PTR1 on the A702 board Monitor the digital pressure display with the pressure display switch in the MIN position 1 Using the syringe adjust the pressure to 6cmH2O and hold for several seconds ensuring that the pressure drift detection warning is displayed on the LCD 2 Adjust the pressure to 3cmH2O and hold agai...

Page 215: ... with R34 with its cathode ve connected to the drain of Q4 IRLU110 on all A0702 boards Additionally if the ventilator is an SLE2000 then change R32 to 8k2 and R34 to 91k 0 25W 1 Metal Film Rationale The diode will be reverse biassed when Q4 is turned off When Q4 is turned on it has a value of Rds of 0 5W giving a Vds of 0 1v The diode voltage is added to this which shall result in the microcontrol...

Page 216: ...in the firmware from version 1 8 SLE2000HFOs with version 1 8 display firmware or later will have both implementations Under normal operating conditions the user would not be aware of this and it is not a problem However if there is confusion the hardware alarm can be disabled by simply grounding pin 13 on the alarm board Modification detail Add wires to loom to link pins 13 and 19 on A0738 02 see...

Page 217: ... of the hardware cycle fail alarm is most noticable when initially switching from CPAP to HFO CPAP On first changing modes the alarm will sound and the cycle fail LED will illuminate If this alarm cannot be reset for a few seconds then the hardware cycle fail alarm is still present Otherwise it is disabled ...

Page 218: ...must be used and secondly a wire must be added to the wiring harness to bring the oxygen signal from the A0702 board up to the A0736 board Modification detail Use A0736 03 board issue 3 with version 2 1 Display Firmware Add wires to loom to link PLA29b with PLB29b see below Subject Addition of the oxygen alarm on SLE2000 HFO Equipment SLE2000HFO Serial Numbers All ventilators prior to serial numbe...

Page 219: ...t the ventilator is connected to air and oxygen and set the blender to 60 3 Press reset and wait for at least 30 seconds for the oxygen reading on the LED display to stabilise 4 Adust the blender to 50 and ensure a low FiO2 warning message is displayed on the LCD and an alarm sounds 5 Then adjust the blender to 70 and ensure a high FiO2 warning message is displayed on the LCD and an alarm sounds 6...

Page 220: ...t temperature conditions the build up of moisture can be significant If this build up of moisture is left unchecked there may be a possibility of the proxi mal airway tube becoming partially blocked with water A proximal airway purge has been introduced which when fitted provides a small continuous gas flow down the proximal tube to keep it clear of moisture Modification detail HFO Proximal airway...

Page 221: ...Issue 10 01 10 2004 Page 221 of 258 The pneumatic circuit diagram is shown here ...

Page 222: ...Page 222 of 258 Issue 10 01 10 2004 Please note that this service information letter is OBSOLETE and is for reference only ...

Page 223: ...ed on the silk screen All units manufactured to date and currently in service have passed their final test and were functional on leaving the factory There is no reason to suppose that any of the operating parameters for this circuit would have changed or that device failure would have occured since the reverse configuration does not have the potential to damage the components Therefore units in t...

Page 224: ...J2 Switch the mode to CPAP and check the operation of the 12V supply supply monitor by ensuring that the battery alarm sounds Turn of the vent reconnect the 24V line and disconnect the 12V line from the PSU pin 9 on J2 Switch the mode to CPAP and check the operation of the 12V supply monitor by ensuring that the battery alarm sounds again Reconnect the 12V line ...

Page 225: ...E part No D0714 Remove U6 and U14 Cut track from pin 31 of U14 socket as shown fig 1 Link pins 31 and 40 of U14 as shown fig 2 SLE part No W0103 Link pins 13 of U18 and 0v as shown fig 2 SLE part No W0103 Fit 100pF ceramic Capacitor as shown fig 2 SLE part No C0404 Link C7 0v pin to U7 pin4 as shown fig 2 SLE part No W0103 Fit U14 ATMEL 89C55 33PC with Firmware as follows SLE part No D0710 The spe...

Page 226: ...errite Sleeve on to Slider Rail as shown figs 4a and 4b using Cable TieSLE part No M0856 Motor Drive PCB A0739 01 02 03 HFO non CE HFO CE HFO Cut PCB track at 8 points as shown fig 5 Fit 100nF Capacitor from pin 4 to pin 8 of U3 as shown fig 5 SLE part No C0481 Fit 1nF Capacitor from pin 2 to pin 18 of U1 shown fig 5 SLE part No C0490 Link R4 0v to pin 18 of U1 as shown fig 5 SLE part No W0103 red...

Page 227: ...Issue 10 01 10 2004 Page 227 of 258 F ig u re 1 F ig u re 2 U 1 4 U 1 8 U 7 Solder to PCB at these points Figure 3 ...

Page 228: ...Page 228 of 258 Issue 10 01 10 2004 Figure 4b ...

Page 229: ...spect the modifications and confirm that they have been carried out in full accord ance with the above procedure After reassembly ensure that the ventilator is fully operational in accordance with its test schedule Figure 5 CUT TRACK IN 8 PLACES U1 U3 U8 U6 Vin U6 0v ...

Page 230: ...n the Service Manual Connect a Voltage Dependant Resistor VDR Harris Semiconductor type V275LA40A SLE Part No D0704 across the live and neutral terminals of the mains terminal block as shown on the following circuit diagram and sketches Subject Ventilator Power Supplies Equipment SLE 2000 HFO CE Non CE Versions Serial Numbers All ventilators prior to serial number 8H0410 Excluding 6H0910 7H0108 S ...

Page 231: ...Issue 10 01 10 2004 Page 231 of 258 ...

Page 232: ...reening case when the case is refitted Once the modification has been completed and the screening and main covers refitted the normal functional and electrical safety checks should be carried out on the ventilator before returning it for use with patients Rationale This modification has been recommended by the power supply manufacturer It provides addi tional protection to the supply when used in ...

Page 233: ...case of customer complaint Equipment Required General hand tools and DIL IC Extractor Additional Parts Circuit board SLE Part Nº J0756 Warnings and Cautions All work should be carried out by a suitably qualified engineer Anti static precautions have to be observed when handling the printed circuit boards Modification Detail 1 Remove ventilator covers Remove the motor drive board from the ventilato...

Page 234: ...Page 234 of 258 Issue 10 01 10 2004 2 Remove the integrated circuit from the motor drive board at position U3 3 Insert into the connector the circuit board supplied Note the orientation of this board ...

Page 235: ...t connector is plugged securely into it s socket before pushing board back into its socket Fit thumb retaining screw Refit covers Testing Connect power gases and patient circuit Switch ON ventilator Check all ventilator basic functions Set HFO frequency control to maximum Switch ON HFO mode and check motor starts and runs correctly Repeat this test three times Check that motor speed can be varied ...

Page 236: ...capacitor has been added across the input of U500A Pins 2 3 on the A0702 Board See photograph and circuit diagram This capacitor is being added as standard to all new production and it is recommended that this modification should be carried out during routine servicing The capacitor used is a 100nf multilayer palladium ceramic type and can be order from SLE using part Nº C0481 Alternatively it can...

Page 237: ...Issue 10 01 10 2004 Page 237 of 258 100nf ...

Page 238: ...06 01 for Ventilator with N2524 01 Motor Assembly See Table B on page 246 for full list of parts Warnings and Cautions All work should be carried out by a suitably qualified engineer with experience of the SLE 2000 HFO ventilator The ventilator has to be checked and certified as functioning correctly before being returned to service The ventilator has to be labelled to show that it has been modifi...

Page 239: ...ess to the Pneumatic Module 1 Disconnect all gas hoses the patient circuit and disconnect from the power supply 2 Open side flap 3 Remove 2 screws at rear and 2 screws at base of unit 4 Lift complete unit from base The unit can then be placed on the work surface upside down Image sm0006 005 ...

Page 240: ...ator The method of identifying which motor assembly is fitted is as follows The N2524 motor assembly is connected to the ventilator via a 9 pin D connector See photograph A For this motor assembly use modification kit N9006 02 The N2524 01 motor assembly is connected to the ventilator via an 8 way Molex connector See photograph B For this motor assembly use modification kit N9006 01 Photograph A P...

Page 241: ... N2524 01 motor assembly B Pull out the grommet retaining the loom 2 and disconnect the 8 way Molex connector 3 The disassembly is now the same for both motor assemblies 1 Fully unscrew the retaining nuts on the two pneumatic connectors 4 and remove the two tubes Ensure that one of the connectors is marked for identification on re assembly 1 2 3 ...

Page 242: ...ning the motor assembly 4 Remove the 2 screws 7 retaining the cover plate 8 and lift clear 5 Remove the final screw 9 retaining the motor assembly 6 Remove the sub assembly by tilting the top towards you Note The old motor assembly can be exchanged as part of the Service Exchange Scheme run by SLE 4 4 5 6 5 6 7 7 8 9 ...

Page 243: ...om the pneumatic unit 2 Remove the screws and washers 3 from the SV4 solenoid 4 3 Disconnect the SV4 solenoid electrical con nectors 5 4 Disconnect the SV5 to SV4 pneumatic tube 6 from the SV4 solenoid 4 Discard the SV4 solenoid and attached tube 7 5 Disconnect and discard the all the tubes 1 4 and connectors A B indicated in the following schematic 1 1 1 1 2 6 3 3 5 4 7 ...

Page 244: ...e required lengths Tube 1 240 mm Tube 2 160 mm Tube 3 220 mm Tube 4 120 mm 9 Re fit the new tubes into the pneumatic unit 10 Fit blanking plug and seal to SV4 port 3 11 Re connect the electrical connectors 5 to the new SV4 solenoid valve 12 Re attach the SV4 solenoid valve to the support strap using the existing screws and wash ers 3 13 Re attach the solenoid support bracket 2 ...

Page 245: ...as supplies exhalation block patient circuits and power supply C Carry out a operational check of the ventilator Verify that 1 Inadvertent mean pressure is less than 5cmH2O but NOT negative for all HFO Delta pressures 2 Inadvertent PEEP is less than 0 5cmH2O but NOT negative for all conventional ventilation modes including CPAP mode D Label the ventilator to show it has been modified for HFO NEEP ...

Page 246: ...g plug 1 00 N2371 Seal 1 00 N2524 03 HFO NEEP motor assembly 1 00 N2373 Polyurethane Tubing 6 4 APU 1 metre N2360 6 4 1 8 male stud elbow 4 00 N2363 6 4 M5 male stud coupling 4 00 Part Nº Component description Quantity Note N2195 06 KV solenoid valve 1 00 N2370 Blanking plug 1 00 N2371 Seal 1 00 N2524 02 HFO NEEP motor assembly 1 00 N2373 Polyurethane Tubing 6 4 APU 1 metre N2360 6 4 1 8 male stud...

Page 247: ...eusable medical devices are required to provide information on how to decontaminate their devices This information should include the types of decontamination agent that may be used together with a warning of any agents or processes that are known to be detrimental to the device Due to SN 2001 28 we are issuing more detailed guidelines for the Cleaning Disinfection and Sterilisation of our product...

Page 248: ...d Existing ventilators do not require modification to remove the duplicated hour counter The one hour counter will be located in the pneumatic chassis This is the unit that is subject to the most wear and tear and requires a major overhaul at 10 000 hours so it is important that we record the running time of these chassis The power consumption of the hours counters is very small so removal of one ...

Page 249: ...iggered breaths Breaths are still indicated by the trigger back up LED illuminating If required the audible bleep can be re instated by holding in the reset button when powering up the ventilator The above feature is available from the following software versions Subject New versions of control software Equipment SLE 2000 SLE 2000 HFO and SLE 2000 HFO Ventilators Serial Numbers All Technical Bulle...

Page 250: ... in the firmware The algorithm has been corrected to remove the error and the firmware has been released at version 1 12 Note All other functions remain the same The above correction is available in the following firm ware version Subject New versions of control firmware Equipment SLE 2000 HFO Serial Numbers All ventilators with V1 10 firmware and above Technical Bulletin Number TB000601 Change No...

Page 251: ... ventilators fitted with serial port V3 1 17 06 94 Changed I E Ratio display from flashing to non flashing hyphens if ratio 1 9 9 or 9 9 1 V3 3 15 01 99 CN0616 No audible indication of machine triggered breaths in patient triggered modes SIMV and PTV unless reset button is held in during power up Firmware version Date of change Change note Nº Details of change V1 09 09 03 93 Flashing of I E Ratio ...

Page 252: ...99 Correction of error in Fail to Cycle detection which caused erroneous triggering at low pressures V1 5 26 03 96 CN0116 Delta P to be displayed for CPAP and HFO modes and ident on oscillator pressure gauge changed V1 6 10 07 96 CN0156 Increased range of display of delta pressures Addition of display of pressure transducer saturation positive and negative V1 7 30 04 97 CN0308 Implementation of an...

Page 253: ... indication of machine triggered breaths in patient triggered modes SIMV and PTV V1 20 22 10 99 CN0676 Change to the averaging period of the mean calculation to 4 seconds Watchdog servicing time changed from 350ms to 20ms Firmware version Date of change Change note Nº Details of change V1 0 30 09 98 CN0560 Initial release V1 1 08 12 98 CN0589 Removal of mean pressure drop alarm High delta P conver...

Page 254: ...tion to the patient However when ventilating a patient with a 3mm or smaller size endotracheal tubes in case of patient extubation or the ET tube disconnecting from its ET connector only the monitoring of flow module SLE 2100 or of SpO2 or PtO2 PtCO2 will dependably alert the medical team to an alarm situation not the monitoring of pressures New operational warning 2 The SLE2000 HFO is a more powe...

Page 255: ...entiometer has changed from a Spectrol 149SXN48S103SP to a Spectrol 149SXN40S103SP 149SXN48S103SP 149SXN40S103SP The change in design requires that the 149SXN40S103SP is fitted with two shake proof washer between the body and the front panel Subject V0226 Potentiometer Equipment SLE2000 SLE 2000 HFO SLE 2000 HFO PLUS Serial Numbers Units manufactured after March 2004 Technical Bulletin Number TB 0...

Page 256: ...e 2 CN 0533 CN 0536 CN 0435 CN 0599 CN 0492 CN 0515 CN 0521 CN 0419 Issue 3 CN 0560 CN 0619 CN 0625 CN 0626 CN 0629 0634 CN 0638 CN 0648 Issue 4 CN 0647 CN 0698 CN 0700 Issue 5 CN 0722 Issue 6 CN 0711 Issue 7 CN 0738 CN 0765 Issue 8 CN 0797 Issue 9 CN 0911 Issue 10 CN 0921 CN 1001 CN 1005 CN1022 ...

Page 257: ...Issue 10 01 10 2004 Page 257 of 258 SLE reserves the right to make changes without prior notice in equipment publications and prices as may be deemed necessary or desirable ...

Page 258: ......