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SLE 2000 HFO+ Service Manual

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SLE 2000 HFO+
Ventilator
Service manual
High Frequency Oscillatory
Ventilator
Issue
8

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Summary of Contents for SLE 2000 HFO+

  • Page 1 SLE 2000 HFO+ Ventilator Service manual High Frequency Oscillatory Ventilator Issue...
  • Page 2 All rights reserved. No part of this publication may be reproduced, stored in any retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopy, recording or otherwise, without prior permission of SLE. © Copyright SLE 04/01/2013 Manual : SM0010 Issue 8 SLE Part Nº:...

  • Page 3: Table Of Contents

    Contents 1. Introduction ......................... 10 1.1. How to use this manual ..................10 1.2. The SLE2000 HFO+ Principles of Operation ............. 10 2. Ventilator Control Description ................... 12 2.1. Front Panel ......................12 2.1.1. Front panel controls ..................13 2.2. Back panel......................14 2.2.1.
  • Page 4 5. Filter Systems ......................39 5.1. Bacterial filter, SLE Part Nº:N2029 (Autoclavable) ..........39 5.2. Bacterial filter, SLE Part Nº:N2587 (Single use) ..........39 5.2.1. Precautions when using bacterial filter N2587..........39 6. Maintenance ........................ 40 6.1. Monthly Operational Checks ................40 6.1.1.
  • Page 5 11.15. HFO NEEP Verification................... 72 11.16. Verification of AUX Output to the SLE2100VPM ..........73 12. SLE2000 HFO+ Troubleshooting Chart ..............76 13. Technical Specification .................... 82 13.1. Conventional Ventilation ................... 82 13.2. HFO Ventilation ....................82 13.3. Displays ......................83 13.4.
  • Page 6 15.4.2. CD/A0702/05 CPU PCB Circuit Diagram Issue 3 ........116 15.5. AS/A0702/05 CPU PCB Issue 3 Sheet 1 of 2 ..........121 15.5.1. Ventilator CPU Board (Detail A)..............122 15.5.2. CD/A0702/05 CPU PCB Circuit Diagram Issue 4 ........123 15.6. AS/A0736/04 Main PCB Revision E Issue 1 ........... 129 15.6.1.
  • Page 7 17.1.3. SI 990401 Slightly attenuated alarm sounder for the 12/24V monitor..236 17.1.4. SI 990801 Enhanced EMC ................ 238 17.1.5. SI 000101 Modification of SLE 2000 HFO motor drive circuit board..243 17.1.6. SI 000201 Leak Alarm Trigger Threshold..........246 17.1.7.
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  • Page 9 Issue 8 Page 9 of 286...

  • Page 10: Introduction

    Patient triggered modes of operation. As in the SLE2000 and the SLE 2000HFO every care has been taken in the design to ensure the safe operation of the ventilator. When in use the rotation of the motor is constantly being monitored, should any malfunction be detected in the HFO+ operation the flow of oscillatory driving gas will immediately be stopped, and the ventilator will display motor failure alarm.
  • Page 11 Issue 8 Page 11 of 286...

  • Page 12: Ventilator Control Description

    2. Ventilator Control Description The SLE 2000 HFO+ consists of two linked modules, Electronic and Pneumatic. Electronic Module Pneumatic Module 2.1 Front Panel Page 12 of 286 Issue 8...

  • Page 13: Front Panel Controls

    2.1.1 Front panel controls Power on and mode switch. HFO mode switch. HFO rate switch. Display Freeze button. Time control switch. Display screen. Low alarm adjustment control. High alarm adjustment control. Cycle fail alarm adjustment control. Alarm Reset button. Alarm mute button. Manual breath button.

  • Page 14: Back Panel

    2.2 Back panel 2.2.1 Back panel features Auxiliary Output. Calibration adjustment. Running time meter - pneumatic module. Fuse holders. Product information plate. Adjustment Tool. Fan and Filter. Filter only. Page 14 of 286 Issue 8...

  • Page 15: Side Panel

    2.3 Side panel Fixed jet Rotating jet Note: Exhalation block removed Issue 8 Page 15 of 286...

  • Page 16: Electronic Module

    2.4 Electronic Module 2.4.1 Electronic Module left hand side Board positions within the electronic unit viewed from the left. Position of the boards within the electronic module. HFO+ Main Board Assembly (A0736/04) Ventilator CPU Board Assembly (A0702/05) Motor Drive Board Assembly (A0739/02) Note: Boards 1,2, and 3 are polarised by the position of the edge connectors thus preventing the boards being inserted into the wrong sockets.

  • Page 17: Electronic Module Right Hand Side

    2.4.2 Electronic Module right hand side Board positions within the electronic unit viewed from the right Alarm Board Assembly (A0738/02) Pressure Drift Monitor Assembly (A0745) Front Panel Board Assembly (A0700/03) and LED Display Board Assembly (A0701/ 02). Note: both these boards are mounted on the rear face of the front panel. Issue 8 Page 17 of 286...

  • Page 18: Pneumatic Module Without Hfo Neep

    2.5 Pneumatic Module without HFO NEEP Motor assembly (N2524/60 Shown). NEEP adjusting block. SV5 Solenoid valve (Beneath bracket) SV4 Solenoid valve (HFO solenoid valve). SV3 Solenoid valve. SV2 Solenoid valve. SV1 Solenoid valve. Volume chamber. Blender. Regulator (Reg 3) Regulator 3 test point indicated by arrow PAPST "L"...

  • Page 19: Pneumatic Module With Hfo Neep

    2.6 Pneumatic Module with HFO NEEP Motor assembly (N2524/61 Shown). NEEP adjusting block. SV5 Solenoid valve (Beneath bracket) SV4 Solenoid valve (HFO solenoid valve). SV3 Solenoid valve. SV2 Solenoid valve. SV1 Solenoid valve. Shuttle Valve. Volume chamber. Blender. Regulator (Reg 3) Regulator 3 test point indi- cated by arrow PAPST "L"...
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  • Page 21 Issue 8 Page 21 of 286...

  • Page 22: Accessing The Sle2000 Hfo+ Internal Components

    3. Accessing the SLE2000 HFO+ Internal Components Caution: All electrical and pneumatic connections must be disconnected before attempting to gain access to either the Electronic or Pneumatic modules. 3.1 Electronic Module 1. Remove the two screws (A) from the retaining bar.
  • Page 23 5. Remove the four EM shroud fixing screws from the location indicated. 6. Remove the EM shrouds from the ventilator, taking care not to damage the metal contact fingers on the edges of the shrouds. 7. . To remove the PCB assemblies remove the retaining thumbscrews (A) 8.

  • Page 24: Pneumatic Module

    3.2 Pneumatic Module 1. Open side flap (A). 2. Remove the two screws indicated from the rear of the ventilator. 3. Remove two screws indicated from the base of unit. Warning: take care not to undo the ventilator/ pole fixing screws (A) as this may cause the ventilator to fall from the stand.

  • Page 25: Separating The Two Modules

    3.3 Separating the two modules Invert the ventilator to gain access to the base of the pneumatic unit. 1. Remove the four screws (1) View A View A 2. Remove proximal airway pressure tube connection Issue 8 Page 25 of 286...
  • Page 26 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. Assembly is the reversal of removal. Page 26 of 286 Issue 8...

  • Page 27: Removal Of The Oxygen Cell

    Firstly gain access to the pneumatic module (See “Pneumatic Module” on page 24.) 3.4.1 Oxygen Cell Mounting The SLE 2000 HFO+ ventilator has two methods of mounting the Oxygen cell. The first method the oxygen cell is trapped between the manifold and a foam pad, Photograph A.
  • Page 28 3. Remove old foam retaining pad (C) from mounting base (if applicable) 4. Assembly is the reversal of removal. 5. Replace cell (Part No. N2191) and reconnect the electrical connector. 6. Ensure that the foam rubber pad is fitted between the cell and the mounting base and that the gas seal “O”...

  • Page 29: Removal Of The Motor Assembly

    Firstly gain access to the pneumatic module (See 3.2 Pneumatic Module on page 24). 3.5.1 Motor Assemblies The SLE 2000 HFO+ ventilator has two models of motor assembly, Part Nº N2524/60 and N2524/61. The first step is to ascertain which motor assembly is fitted to your ventilator.

  • Page 30: Removal Of N2524/60 Motor Assembly

    3.5.2 Removal of N2524/60 motor assembly 1. Release 2 screws (1) on the 9 pin D connector and unplug connector. 3.5.3 Removal of N2524/61 motor assembly 1. Unplug 8 way Molex connector (1). 2. Remove grommet and cable from retaning slot (2) The disassembly is now the same for both motor assemblies, fitted to a pneumatic unit without HFO NEEP for a ventilator with HFO NEEP follow the procedure on page 32.
  • Page 31 5. Remove the HFO jet hose (7) from SV4 solenoid valve. 6. Remove the two screws (8) retaining the NEEP adjusting block . 7. Remove the two screws (9) retaining the fresh gas relief valve cover (10) 8. Remove the fresh gas relief valve cover (10) 9.

  • Page 32: Removal Of Motor Assemblies From Pneumatic Units Fitted With Hfo Neep

    3.5.4 Removal of motor assemblies from pneumatic units fitted with HFO NEEP 1. Remove the two screws, washers and nuts (1) retaining the Shuttle valve. 2. Remove the HFO jet hose (2) from the SV4 solenoid valve tee connection (3). 3.
  • Page 33 5. Remove the two screws (8) retaining the fresh gas relief valve cover (9) 6. Remove the fresh gas relief valve cover (9) 7. Remove the two screws (10) securing the orifice block. 8. Remove the three screws (11) retaining the motor assembly. 9.
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  • Page 35 Issue 8 Page 35 of 286...

  • Page 36: Cleaning, Disinfection And Sterilization

    DO NOT steam autoclave the SLE 2000 HFO+ or otherwise subject it to temperatures above 62°C. DO NOT immerse any part of the SLE 2000 HFO+ in any liquid, with the exception of the expiratory exhalation block (SLE part No N0635/60).

  • Page 37: Cleaning, Disinfection & Sterilization Chart

    • Lift up lever (A) on side of ventilator and lower side flap. • Remove the silencer (B) by pulling it through the hole at the rear. • Remove the exhalation block (C) by firstly taking hold of the block and then pulling it out towards you without the need for undue force.

  • Page 38: Disinfection Method

    4.5 Sterilization method The silencer SLE part Nº N2186 and exhalation block SLE part Nº N0635/60 must be sterilized between use on patients. The ventilator cannot be sterilized. The exhalation block must be cleaned as an essential prerequisite to sterilization.

  • Page 39: Filter Systems

    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 refer to manufacturers instructions. 5.2 Bacterial filter, SLE Part Nº:N2587 (Single use) This single use bacterial filter is fitted onto the exhalation block outlet. This filter should be disposed of in accordance with local hospital authority guidelines.

  • Page 40: Maintenance

    All 7 segment displays except pressure leftmost digit increment fron 0 to 9. (check all segments are operative) LCD firmware initalises and displays SLE logo. 6.1.2 Air and Oxygen Supply Failure Alarm test. With the FIO 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.

  • Page 41: Pip Pressure Check

    6.1.4 PIP Pressure Check Set ventilator to CMV, 60BPM, 0.5 sec inspiration time. Set a driving gas pressure to read 40cmH O. Peak inspiration pressure should be between 37 and 43 cmH 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 30 cmH 6.1.6 HFO pressure check Check that the Oscillator pressure regulator can be set up to produce delta pressure of...

  • Page 42: Servicing

    A service should be completed every 6 months. This maintenance is intended to be carried out in the hospital. Service of this ventilator should only be carried out by an SLE trained hospital engineer or an SLE service engineer. The ventilator is fitted with a time elapsed meter to assist in checking operational use and service periods.
  • Page 43 Issue 8 Page 43 of 286...

  • Page 44: Overhaul

    Overhaul should be carried out at a maximum of 10,000 hours operation or every two years of service which ever is sooner. This overhaul will be performed by an SLE trained hospital engineer or an SLE service engineer at SLE.
  • Page 45 Issue 8 Page 45 of 286...

  • Page 46: Exchanging A Pneumatic Unit

    8. Exchanging a Pneumatic Unit The following details how to exchange the pneumatic unit of the SLE 2000 HFO Plus. Firstly gain access to the ventilator (See section ’3.2 Pneumatic Module’ on page 24) and remove the pneumatic unit (See section ’3.3 Separating the two modules’ on page 25).
  • Page 47 Issue 8 Page 47 of 286...

  • Page 48: Sle2000 Hfo+ Set Up And Calibration

    A Calibrated 20MHz+ Storage Oscilloscope. A Calibrated DVM able to resolve 1mV. A Calibrated RT200 Calibration Analyser or equivalent. A calibrated SLE 2100 VPM (Only required if carrying out sensitivity preset adjustment using flow and Calibration of AUX Output.) A 50ml syringe.

  • Page 49: Setup And Calibration

    10. Setup and calibration Step 1. Power Supply Unit Step 1.a Voltage verification and setting Connect the ventilator to a mains supply and set the unit to the CPAP mode. Measure between pins; Voltage 1(GND) on PSU and pin 32a/b +5.12V ±...
  • Page 50 Step 4. System Watchdog on the A0702/05 board Set the ventilator to CPAP mode. Check that U3 pin 11 gives +5.12V. If the voltage at U3 pin 11 is out of specification, adjust as described below. Note: This is factory set and should not require adjustment. Monitor (U8) pin 8 adjusting RV10 to ascertain the two points where the voltage rises from 0V to 5.12V, then set RV10 to midway between these positions and to check the setting, measure the voltage on (U3) pin 11 is a continuous +5.12V.
  • Page 51 Step 6. Pressure Transducer Calibration PTR1 on the A0745/01 board With the ventilator still in CPAP mode. Check that the right hand pin of R5 gives +1.90v ±2mV. If the voltage at R5 is out of specification adjust as described below. Note: This is factory set and should not require adjustment.
  • Page 52 Pay special attention to the indicated polarities when measuring voltages. b) Monitor the DC voltage between HIGH (+ probe) and LOW (- probe) and adjust to +180mV ±5mV using RV1. c) Monitor the DC voltage between HIGH (+ probe) and DIFF (- probe) and adjust to +90mV ±5mV using RV2.
  • Page 53 Step 9. Buffered transducer output on the A0702/05 board Remain in CPAP mode with the Pressure Switch still set to MIN. Monitor PLB/23b and check that the voltage is 2.32V ±0.05mv. If the voltage at PLB Pin 23b is out of specification, adjust as described below. With the PTR1 port open to atmosphere adjust RV3 to give:2.32V ±0.05mv Connect the PTR1 port (Port B) to the RT200 and the 2ml syringe via the flexible tubing and ’Y’...
  • Page 54 Step 12. Motor Drive Board A0739/02 Set the ventilator to CPAP. Switch HFO mode to EXP. Turn motor speed control (HFO rate control) fully clockwise. Monitor TP1 with a calibrated oscilloscope or calibrated timer/counter. Adjust RV1 to produce a frequency of: 4KHz±40Hz (250s±25ms) Turn motor speed control fully anti-clockwise Verify that frequency at TP1 is:...
  • Page 55 Step 14. Setting the HFO rate display on the A0736/04 board Remain in CPAP but set the HFO mode to EXP Set the HFO rate control to 20Hz The LCD should display 20Hz. Adjust P4 (if value out) to bring the displayed value back to 20Hz. Set the HFO rate control to 3Hz The LCD should display 3Hz.
  • Page 56 Step 17. Motor Stall Alarm (A0736/04 board) Switch the HFO Mode to EXP Set motor speed to: 3Hz Adjust P2 so that the HFO fail alarm is activated. Then slowly adjust P2 back again so that HFO fail alarm is just de-activated and set P2 another 10º...
  • Page 57 Step 19. Internal Pressure Regulator Invert the ventilator to gain access to the pneumatic unit Remove the plug from the test point on the internal pressure regulator. Connect the test point to the RT200 and monitor the pressure. Close the CPAP regulator. Connect the gas supply.
  • Page 58 Step 22. NEEP Flow Needle Valve Note: Occlude pressure relief ball bearings in the exhalation block using a suitable wedge of card. Clamp the exhalation block lightly to the motor assembly so as to avoid gas leakage. Monitor proximal pressure at the ET manifold. Adjust NEEP Flow Needle Valve (NV3) to produce a pressure of 0.00cmH O ±0.25cmH O at...
  • Page 59 Then wait approximately 15 minutes for the ventilator to stabilize before continuing. Confirm that fresh gas flow is:15L/min ±0.25L/min Connect the flow regulator assembly in the following configuration: SLE 2000 HFO+ Ventilator To RT200 Calibration Analyser or equivalent.
  • Page 60 Create a pressure by adjusting the relieving regulator at the fresh gas outlet of: +30cmH O±0.5cmH 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: +160cmH O ±...
  • Page 61 Step 27. Sensitivity preset adjustment (pressure, internal) Note: This is factory set and should not require adjustment. Set trigger switch to PRESSURE (internal) position. Switch ventilator into CMV mode. Set BPM rate to 1 and insp. time of 0.5 secs. Set respiratory pressures of 30/0cmH Set High and CPAP alarms to 35 and -5 cmH O respectively.
  • Page 62 Note: This is factory set and should not require adjustment. Set trigger switch to FLOW (external) position. With SLE 2100 VPM connected to ventilator AUX O/P socket and powered on; Monitor voltage at PLB13b. Adjust P1 on A0746 PCB to give 2.4V.
  • Page 63 Step 28. Alarm sounder volume Set up an alarm condition on the ventilator. Adjust RV1 to an acceptable alarm volume, bearing in mind that the alarm will sound slightly weaker when the cover is fitted. Step 29. Maximum CPAP/PEEP Pressure Monitor the proximal airway pressure.
  • Page 64 Remove the fresh gas relief valve. Using the special tool (SLE Part Nº: TBA) adjust the valve a small amount. Refit the valve to the pneumatic unit and occlude the relieving valve again. Check the pressure that the valve dumps fresh gas. Continue the process until the valve dumps gas at 200cmH O.
  • Page 65 Step 34. Blender Connect oxygen analyser to fresh gas supply and by adjusting the blender control in 10% steps, verify that the oxygen output is accurate to within ±3% of the set value. With the blender set to 60% O , increase the air supply pressure to the ventilator and note that the blender alarm is activated when air pressure is approximately 30psi greater than O pressure.

  • Page 66: Operational Verification

    All 7 Segment displays except PRESSURE left most digit increment from 0 to 9 (Check all segments are operative) LCD firmware initialises & displays SLE logo. With mode switch set successively in CPAP, CMV, PTV, and SIMV, disconnect the mains supply & confirm that the Mains Failure audible alarm is activated in each position.
  • Page 67 By selecting a range of CPAP pressures from O cmH O to 25 cmH O in 5 cmH steps, and adjusting the CPAP alarm setting to the CPAP pressure, observe that the displayed CPAP pressure plateau corresponds with the alarm line display Check that CPAP audible and visual alarm operates at pressures at or below CPAP alarm setting.

  • Page 68: Hfo Modulation

    Check that in all other combinations of modes, i.e. CPAP and HFO OFF CMV, PTV, SIMV, and all HFO modes; combined the maximum HIGH alarm threshold is +80cmH O ±2cmH Ensure that the 15LPM fresh gas supply is dumped at a pressure 5cmH O above the HIGH alarm threshold.

  • Page 69: Display Timebase

    11.3 Display Timebase Check that the display timebase rate control setting corresponds with the digitally displayed rate for settings of 6, 4, 3, 2, 1 and 0.5 seconds. Check that 6 and 4 second rates default to 3 seconds rate in any HFO mode. 11.4 Display Pressure Range Check that in CPAP and HFO modes EXP, INSP, and CONT;...

  • Page 70: Ptv Mode

    LED is activated when a back-up breath is initialised. Check operation of the PTV trigger system in both FLOW and PRESSURE switch settings. FLOW trigger will only work with an SLE 2100 VPM connected to the AUX O/P socket.

  • Page 71: Pressure Controls

    To generate a high pressure alarm condition with a standard patient circuit fitted to the ventilator occlude the expiratory limb, and note that: The Fresh Gas supply solenoid valve is de-energized (leak alarm is activated). Airway pressure is less than 25 cmH O while the expiratory limb is occluded.

  • Page 72: Verifying Pressure Drift Detection

    11.14 Verifying Pressure Drift Detection Switch to CPAP mode. Using a short length of 1/8 Tygon connect a 2ml syringe to port A on pressure transducer PTR1 on the A702 board. Monitor the digital pressure display with the pressure display switch in the MIN position.

  • Page 73: Verification Of Aux Output To The Sle2100Vpm

    11.16 Verification of AUX Output to the SLE2100VPM Connect a calibrated SLE 2100 VPM to the AUX O/P socket of the ventilator Fit a full patient circuit with flow sensor and test lung to the ventilator. Set the ventilator mode to CPAP...
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  • Page 75 Issue 8 Page 75 of 286...

  • Page 76: Sle2000 Hfo+ Troubleshooting Chart

    12. SLE2000 HFO+ Troubleshooting Chart Symptom Possible Cause Remedy Leak Alarm - audible & Incorrect circuit fitted. Replace with correct circuit visual -P/No. N2198 or variant. Damaged circuit fitted. Replace with new circuit. Humidifier chamber. Replace chamber. High alarm condition. High alarm LED illuminated - reset Insp.
  • Page 77 Set up as per service manual.See “Tachometer opto- interrupter Wheel Alignment” on page 59. Fan Alarm - audible & Faulty fan assembly. Replace assembly with SLE visual approved part. System Fail - audible & Ensure 5V is present at Replace PSU.
  • Page 78 Symptom Possible Cause Remedy PEAK INSP. PRESSURE Faulty patient circuit. Replace circuit. Unable to set desired pressure. Incorrectly assembled Reassemble as per drawing patient circuit. supplied with circuit. Exhalation block - located Relocate the block assembly. incorrectly. Regulator cap is in Pull regulator cap out to release LOCKED position.
  • Page 79 Symptom Possible Cause Remedy SOL message. Displayed in BPM window Check wiring and solenoids. O/C of solenoid circuit. Use dummy load. LCD measurements vary Calibration of transducer. Verify and adjust as required the from that displayed by calibration of PTR1 to ADC & pressure display.
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  • Page 81 Issue 8 Page 81 of 286...

  • Page 82: Technical Specification

    13. Technical Specification 13.1 Conventional Ventilation Modes: OFF,CPAP,CMV,PTV,SIMV BPM Range: 1-150 breaths per minute Inspiratory Time: 0.1-3.0 seconds I:E Range: 9.9:1 - 1:9.9 calculated from BPM and Inspiratory time CPAP Pressure: 0cmH O to 25cmH O minimum. Inspiratory Pressure: 0cmH O to 60cmH O minimum switched fast or slow rise waveforms.

  • Page 83: Displays

    Display Freeze push button: Active for 60 seconds (approx.) Patient Trigger Selection Switch Flow or Pressure triggering Pressure and Flow Trigger Sensitivity Range: 2ml/0.5 sec max. To 10ml/0.5sec control: min. Using SLE N2387/60 patient circuit. Issue 8 Page 83 of 286...

  • Page 84: Alarms

    HIGH, CYCLE FAIL, LOW pressure Resolution: 2cmH O on LCD alarm setting controls: Display Timebase selector switch: 6,4,3,2,1,0.5 seconds/frame HFO Mode Switch: OFF, EXP. INSP. and CONT. RATE Control: 3 to 20Hz HFO Pressure Control: 0cmH O to 150cmH O (off load) CPAP/PEEP Pressure Control: 0 to 30cmH O (typ.)

  • Page 85: Power, Dimensions Etc

    13.6 Power, Dimensions 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 O 3-5 bar Operating Environment: Temp: 10-40°C Humidity: 0-90% Size, Ventilator only: 38cm W × 39cm H × 33cm D Height on pole: 141cms Weight Ventilator Only: 16 Kgs...

  • Page 86: Circuit Descriptions

    14. Circuit Descriptions 14.0.1 Front Panel Board Assembly (A0700/03) This board is mounted behind the front panel of the SLE2000 HFO+ Electronic unit and is above the A0701/02 board. On this board are the seven segment LED displays for; BPM, INSP, I:E, PRESSURE and FIO .

  • Page 87: Hfo Main Board Assembly (A0736/04)

    There is a supervisory watchdog alarm system which consists of (U8) and (U3) and BZ2. This monitors a train of pulses of 20ms period from the processor (U14/3 - the port is toggled every 10ms) to confirm the correct running of the software. A disruption of these pulses will activate a latched audible alarm BZ2.
  • Page 88 14.0.4.2 HFO+ Rate This circuit uses the signal generated by the tachometer circuit to display the HFO+ rate on the LCD display. This is achieved by using a TC9401(U20) in a frequency to voltage configura- tion. The derived voltage is input to the processor system via the ADC0809 (U5). 14.0.4.3 Dual Fan Fail Alarm This circuit operates audible and visual alarms if the speed of either fan motor falls below approx.

  • Page 89: Alarm Board Assembly (A0738/02)

    14.0.5 Alarm Board Assembly (A0738/02) 14.0.5.1 Alarm Conditioning Circuit The Alarm circuit comprises U1, U2 and U3. Those alarm inputs which can be muted are input to U2 via a 4066 quad analogue switch (U1), the control pins of which are connected to the mute timer output from the A0702/05 board PLB/7b.

  • Page 90: Motor Drive Board Assembly (A0739/02)

    Revision B may have been modified by the addition of HFO Start-up Motor PCB assembly (A0756) at connector U3. ( See “SI 000101 Modification of SLE 2000 HFO motor drive circuit board.” on page 232 for further information). The revision C board incorporates the A0756 board.

  • Page 91: Pressure Drift Monitor Board Assembly (A0745/01)

    14.0.7 Pressure Drift Monitor Board Assembly (A0745/01) The Purpose of this board is to provide an output signal if the difference between the pressure transducer signal on the A0702 board and the pressure transducer signal on this board differ by more than a set voltage (determined by RV1) Op amp U1B is used to generate an 8VDC supply from the 12VDC.

  • Page 92: Power Supply Unit

    14.0.8 Power Supply Unit The power supply unit is a universal AC input switcher type. It has an overall power rating of 80W and is capable of operating down to zero load. It typically has a hold up time of 75ms. The pin connections to the unit are as follows;...

  • Page 93: Pneumatic Circuit

    14.1 Pneumatic Circuit For access to the pneumatic unit See “Pneumatic Module” on page 24. Below is a schematic representation of the SLE 2000 HFO+ pneumatics; Issue 8 Page 93 of 286...

  • Page 94: Pneumatic Layout For A Standard Hfo

    14.1.1 Pneumatic Layout for a standard HFO + The positioning of the pneumatic components is shown in the following schematic; Page 94 of 286 Issue 8...

  • Page 95: Pneumatic Layout For A Hfo + With Hfo Neep

    14.1.2 Pneumatic Layout for a HFO + with HFO NEEP The positioning of the pneumatic components is shown in the following schematic; Issue 8 Page 95 of 286...

  • Page 96: Conventional Ventilation

    14.1.3 Conventional Ventilation Air and oxygen supplies are connected directly to the blender. The output from the blender is supplied via panel mounted regulator REG.1 (0 to 4bar) (inspiratory pressure) and solenoid valve SV1 to the inspiratory nozzle in the exhalation block. It is also connected to SV3 (the wave shape solenoid) and the large volume chamber.
  • Page 97 HFO delta pressures up to 150 cmH O. The HFO driving gas oscillates 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 off the HFO driving gas pressure. SV4 also serves to modulate the HFO driving gas pressure in various ways during conventional ventilation;...
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  • Page 99 Issue 8 Page 99 of 286...

  • Page 100: Circuit Details

    15. Circuit Details 15.1 A0700/03 Display Board Assembly Page 100 of 286 Issue 8...

  • Page 101: Cd/A0700/03 Display Board Circuit Diagram

    15.1.1 CD/A0700/03 Display Board Circuit Diagram Issue 8 Page 101 of 286...
  • Page 102 PARTS LIST Finished Item Stock Number A0700/03 Finished Item Description Display PCB Assy' HFO "PLUS" Drawing Number AS/A0700/03 Issue 1 Part Number Component Description Component Reference(s) Used Unit J0700 Display Board blank 1.00 Each ITEM 1 (PCB Rev 1) D0308 LED Green Rectangular LGB480EH 1.00 Each LED 6...

  • Page 103: A0701/02 Led Pcb Assembly

    15.2 A0701/02 LED PCB Assembly Issue 8 Page 103 of 286...

  • Page 104: Cd/A0701/02 Led Board Circuit Diagram

    15.2.1 CD/A0701/02 LED Board Circuit Diagram Page 104 of 286 Issue 8...
  • Page 105 PARTS LIST Finished Item Stock Number A0701/02 Finished Item Description LED Pcb Assy (HFO) Drawing Number AS/A0701/02 Issue 2 Part Number Component Description Component Reference(s) Used Unit J0701 LED pcb blank 1.00 ITEM 1 (PCB) D0308 LED Green Rectangular LGB480EH 3.00 LED2,3,4 D0508...
  • Page 106 CPU Board AS/A0702/05 AS/A0702/05 Issue 2: Standard board (See board drawing AS/A0702/05 issue 2 on page 107 and circuit diagram CD/A0702/05 issue 2 on page 109). Stabilization of leak alarm trigger threshold AS/A0702/05 Issue 3: Addition of capacitor C0481 to stabilise leak alarm trigger threshold (See board drawing AS/A0702/05 issue 3 on page 114 and circuit diagram CD/A0702/05 issue 3 on page 116).

  • Page 107: As/A0702/05 Cpu Pcb Issue 2 Sheet 1 Of 2

    15.3 AS/A0702/05 CPU PCB Issue 2 Sheet 1 of 2 Issue 8 Page 107 of 286...

  • Page 108: As/A0702/05 Issue 2 Sheet 2 Of 2

    AS/A0702/05 Issue 2 Sheet 2 of 2 15.3.1 Page 108 of 286 Issue 8...

  • Page 109: Cd/A0702/05 Cpu Pcb Circuit Diagram Issue 2

    15.3.2 CD/A0702/05 CPU PCB Circuit Diagram Issue 2 A3 version on page 211 of circuit diagram appendix Issue 8 Page 109 of 286...
  • Page 110 PARTS LIST Finished Item Stock Number A0702/05 Finished Item Description Vent CPU PCB Assy’ HFO+ (Plus) Part Number Component Description Component Reference(s) Used Unit J0702 Ventilator CPU pcb blank 1.00 Each ITEM 1 (PCB Rev D) Check pressure transducer type (ITEM PTR2) and read note for component pre-fix.
  • Page 111 Part Number Component Description Component Reference(s) Used Unit D0578 74AC540 1.00 Each D0579 74HC541 1.00 Each D0580 TLCSSSCP 1.00 Each D0581 LMC660AIN 2.00 Each U13,U202 D0584 CD40106BE 1.00 Each U200 D0598 P80C32 1.00 Each D0636 IRLU110 power MOSFET,TO-251 1.00 Each D0638 ZTX450 1.00 Each...
  • Page 112 Part Number Component Description Component Reference(s) Used Unit R0473 33K Resistor 1% 0.25W 1.00 Each R501=Pt No.R0467 when pre- R0479 47K Resistor 1% 0.25W SMA0207 7.00 Each R1,3,4,R22,R24,R40,R45 R0486 lOOK Resistor 1% 0.25W SMA0207 7.00 Each R13,201,202,209,210,R502,R R0496 470K Resistor 1% 0.25W SMA0207 1.00 Each R0499 750K Resistor 1% 0.25W...
  • Page 113 Part Number Component Description Component Reference(s) Used Unit W0103 Wire Wrapping Kynar Red30awg 0 20 Metre ITEM 50 (WIRE LINE 1,2 & 3) Issue 8 Page 113 of 286...

  • Page 114: As/A0702/05 Cpu Pcb Issue 3 Sheet 1 Of 2

    15.4 AS/A0702/05 CPU PCB Issue 3 Sheet 1 of 2 Page 114 of 286 Issue 8...

  • Page 115: As/A0702/05 Cpu Pcb Sheet 2 Of 2

    AS/A0702/05 CPU PCB Sheet 2 of 2 15.4.1 Issue 8 Page 115 of 286...

  • Page 116: Cd/A0702/05 Cpu Pcb Circuit Diagram Issue 3

    15.4.2 CD/A0702/05 CPU PCB Circuit Diagram Issue 3 A3 version on page 213 of circuit diagram appendix Page 116 of 286 Issue 8...
  • Page 117 PARTS LIST Finished Item Stock Number A0702/05 Finished Item Description Vent CPU PCB Assy’ HFO+ (Plus) Part Number Component Description Component Reference(s) Used Unit J0702 Ventilator CPU pcb blank 1.00 Each ITEM 1 (PCB Rev D) Check pressure transducer type (ITEM PTR2) and read note for component pre-fix.
  • Page 118 Part Number Component Description Component Reference(s) Used Unit D0576/01 27C128-20/P 1.00 Each D0577 LM567CN 1.00 Each D0578 74AC540 1.00 Each D0579 74HC541 1.00 Each D0580 TLCSSSCP 1.00 Each D0581 LMC660AIN 2.00 Each U13,U202 D0584 CD40106BE 1.00 Each U200 D0598 P80C32 1.00 Each D0636 IRLU110 power MOSFET,TO-251...
  • Page 119 Part Number Component Description Component Reference(s) Used Unit R0473 33K Resistor 1% 0.25W 1.00 Each R501=Pt No.R0467 when pre-fix R0479 47K Resistor 1% 0.25W SMA0207 7.00 Each R1,3,4,R22,R24,R40,R45 R0486 l00K Resistor 1% 0.25W SMA0207 7.00 Each R13,201,202,209,210,R50 2,R503 R0496 470K Resistor 1% 0.25W SMA0207 1.00 Each R0499 750K Resistor 1% 0.25W...
  • Page 120 Part Number Component Description Component Reference(s) Used Unit W0103 Wire Wrapping Kynar Red30awg 0 20 Metre ITEM 50 (WIRE LINE 1,2 & Page 120 of 286 Issue 8...

  • Page 121: As/A0702/05 Cpu Pcb Issue 3 Sheet 1 Of 2

    15.5 AS/A0702/05 CPU PCB Issue 3 Sheet 1 of 2 See detail A Issue 8 Page 121 of 286...

  • Page 122: Ventilator Cpu Board (Detail A)

    15.5.1 Ventilator CPU Board (Detail A) Cut track Link R0658 C0481 Page 122 of 286 Issue 8...

  • Page 123: Cd/A0702/05 Cpu Pcb Circuit Diagram Issue 4

    15.5.2 CD/A0702/05 CPU PCB Circuit Diagram Issue 4 A3 version on page 215 of circuit diagram appendix Issue 8 Page 123 of 286...
  • Page 124 PARTS LIST Finished Item Stock Number A0702/05 Finished Item Description Vent CPU PCB Assy’ HFO+ (Plus) Part Number Component Description Component Reference(s) Used Unit J0702 Ventilator CPU pcb blank 1.00 Each ITEM 1 (PCB Rev D) Check pressure transducer type (ITEM PTR2) and read note for component pre-fix.
  • Page 125 Part Number Component Description Component Reference(s) Used Unit D0577 LM567CN 1.00 Each D0578 74AC540 1.00 Each D0579 74HC541 1.00 Each D0580 TLCSSSCP 1.00 Each D0581 LMC660AIN 2.00 Each U13,U202 D0584 CD40106BE 1.00 Each U200 D0598 P80C32 1.00 Each D0636 IRLU110 power MOSFET,TO-251 1.00 Each D0638 ZTX450...
  • Page 126 Part Number Component Description Component Reference(s) Used Unit R0479 47K Resistor 1% 0.25W SMA0207 7.00 Each R1,3,4,R22,R24,R40,R45 R0486 l00K Resistor 1% 0.25W SMA0207 7.00 Each R13,201,202,209,210,R50 2,R503 R0496 470K Resistor 1% 0.25W SMA0207 1.00 Each R0499 750K Resistor 1% 0.25W 1.00 Each R203 R0501...
  • Page 127 Part Number Component Description Component Reference(s) Used Unit W0103 Wire Wrapping Kynar Red30awg 0 20 Metre ITEM 50 (WIRE LINE 1,2 & W0112 Tinned copper wire 22swg 0.01 Metre See detail A Issue 8 Page 127 of 286...
  • Page 128 Main Board AS/A0736/04 Revision E : Standard board (See board drawing AS/A0736/04 issue 1 on page 129 and circuit diagram CD/A0736/04 issue1 on page 130). Revision F: U7 timer (ZN1034E) no longer manufactured and replaced by timer (NE555N) which required additional components. (See board drawing AS/A0736/04 issue 2 on page 134 and circuit diagram CD/A0736/04 issue 2 on page 135).

  • Page 129: As/A0736/04 Main Pcb Revision E Issue 1

    15.6 AS/A0736/04 Main PCB Revision E Issue 1 Issue 8 Page 129 of 286...

  • Page 130: Cd/A0736/04 Main Pcb Circuit Diagram Issue 1

    15.6.1 CD/A0736/04 Main PCB Circuit Diagram Issue 1 (For Revision E Main Board) Note: Check the revision status of the main board A3 version on page 217 of circuit diagram appendix. Page 130 of 286 Issue 8...
  • Page 131 Note: Check the revision status of the main board PARTS LIST Finished Item Stock Number A0736/04 Finished Item Description HFO "PLUS" Main PCB Assembly Rev E Part Number Component Description Component Reference(s) Used Unit J0736 HFO Main Board blank 1.00 Each ITEM 1 (PCB Rev E CN0560) C0224 2.2uF Capacitor 35v 20% Tant.
  • Page 132 Part Number Component Description Component Reference(s) Used Unit D0585 BC327 1.00 Each D0525 4066 Quad Bilaterial Switch 1.00 Each D0531 4013 4000 CMOS 1.00 Each D0581 LMC660AIN Quad CMOS Op Amp 3.00 Each U28-U30 D0594 ZN1034E Precision Timer IC 1.00 Each D0595 74LS148N Low Power SchottkyTTL 1.00 Each...
  • Page 133 Part Number Component Description Component Reference(s) Used Unit R0467 15K Resistor 1% 0.25W SMA0207 3.00 Each R56,R116 & R118 R0469 22.1K Resistor 1% 0.25W SMA020 6.00 Each R12,38,39,R77-79 R0471 27K Resistor 1% 0.25W SMA0207 2.00 Each R82,85 R0473 33K Resistor 1% 0.25W 2.00 Each R9 &...

  • Page 134: As/A0736/04 Main Pcb Revision F Issue 2

    15.7 AS/A0736/04 Main PCB Revision F Issue 2 Note: Check the revision status of the main board Page 134 of 286 Issue 8...

  • Page 135: Cd/A0736/04 Main Pcb Circuit Diagram Issue 2

    15.7.1 CD/A0736/04 Main PCB Circuit Diagram Issue 2 (For Revision F Main Board) Note: Check the revision status of the main board A3 version on page 219 of circuit diagram appendix. Issue 8 Page 135 of 286...
  • Page 136 PARTS LIST Finished Item Stock Number A0736/04 Finished Item Description HFO "PLUS Main" PCB Assembly Rev F Part Number Component Description Component Reference(s) Used Unit J0736 Main PCB Blank Revision`F' HFO 1.00 Each ITEM 1 (PCB Rev F CN0619) C0224 2.2uF Capacitor 35v 20% Tant.
  • Page 137 Part Number Component Description Component Reference(s) Used Unit D0580 TLC555CP CMOS Low Power Timer 1.00 Each D0585 BC327 T0-92(f) Transistor 1.00 Each D0525 4066 Quad Bilaterial Switch 1.00 Each D0531 4013 4000 CMOS 1.00 Each D0581 LMC660AIN Quad CMOS Op Amp 3.00 Each U28-U30 D0595...
  • Page 138 Part Number Component Description Component Reference(s) Used Unit R0467 15K Resistor 1% 0.25W SMA0207 3.00 Each R56,R116 & R118 R0469 22K1 Resistor 1% 0.25W SMA020 5.00 Each R38,39,R77-79 (CN0619) R0471 27K Resistor 1% 0.25W SMA0207 2.00 Each R82,85 R0473 33K Resistor 1% 0.25W 2.00 Each R9 &...

  • Page 139: As/A0736/04 Main Pcb Revision F Issue 3

    15.8 AS/A0736/04 Main PCB Revision F Issue 3 Note: Check the revision status of the main board (For Ventilators with HFO NEEP) Issue 8 Page 139 of 286...

  • Page 140: Cd/A0736/04 Main Pcb Circuit Diagram Issue 3

    15.8.1 CD/A0736/04 Main PCB Circuit Diagram Issue 3 (For Ventilators with HFO NEEP) A3 version on page 221 of circuit diagram appendix. Page 140 of 286 Issue 8...
  • Page 141 PARTS LIST Finished Item Stock Number A0736/04 Finished Item Description HFO "PLUS Main" PCB Assembly Rev F Issue 3 For ventilators with HFO NEEP. For additional information Also see “SI 000601 Addition of HFO NEEP” on page 248. Part Number Component Description Component Reference(s) Used Unit...
  • Page 142 Part Number Component Description Component Reference(s) Used Unit D0576 27C128A-20 1.00 Each D0578 74AC540 Advanced CMOS 2.00 Each U4 & U21 D0580 TLC555CP CMOS Low Power Timer 1.00 Each D0585 BC327 T0-92(f) Transistor 1.00 Each D0525 4066 Quad Bilaterial Switch 1.00 Each D0531 4013 4000 CMOS...
  • Page 143 Part Number Component Description Component Reference(s) Used Unit R0463 10K Resistor 1% 0.25W SMA0207 32.00 Each R5,13,29,35,41,42,48,52,53,5 7,58,61,62,64,67,68,70 72,73,75,76,81,86,88,89,91,92 ,99,100,102,R114 See SI000601 R0464 12K1 Resistor 1% 0.25W SMA020 4.00 Each R69,71,74,R101 R0467 15K Resistor 1% 0.25W SMA0207 3.00 Each R56,R116 & R118 R0469 22K1 Resistor 1% 0.25W SMA020 5.00 Each...

  • Page 144: As/A0736/04 Main Pcb Revision F Issue 3

    15.9 AS/A0736/04 Main PCB Revision F Issue 3 Note: Check the revision status of the main board Page 144 of 286 Issue 8...

  • Page 145: Cd/A0736/04 Main Pcb Circuit Diagram Issue 4

    15.9.1 CD/A0736/04 Main PCB Circuit Diagram Issue 4 (For Ventilators with HFO NEEP) A3 version on page 223 of circuit diagram appendix. Issue 8 Page 145 of 286...
  • Page 146 PARTS LIST Finished Item Stock Number A0736/04 Finished Item Description HFO "PLUS Main" PCB Assembly Rev F Issue 3 Part Number Component Description Component Reference(s) Used Unit J0736 Main PCB Blank Revision`F' HFO 1.00 Each ITEM 1 (PCB Rev F CN0619) C0224 2.2uF Capacitor 35v 20% Tant.
  • Page 147 Part Number Component Description Component Reference(s) Used Unit D0578 74AC540 Advanced CMOS 2.00 Each U4 & U21 D0580 TLC555CP CMOS Low Power Timer 1.00 Each D0585 BC327 T0-92(f) Transistor 1.00 Each D0525 4066 Quad Bilaterial Switch 1.00 Each D0531 4013 4000 CMOS 1.00 Each D0581 LMC660AIN Quad CMOS Op Amp...
  • Page 148 Part Number Component Description Component Reference(s) Used Unit R0463 10K Resistor 1% 0.25W SMA0207 32.00 Each R5,13,29,35,41,42,48,52,53,5 7,58,61,62,64,67,68,70 72,73,75,76,81,86,88,89,91,92 ,99,100,102,R114 See SI000601 R0464 12K1 Resistor 1% 0.25W SMA020 4.00 Each R69,71,74,R101 R0467 15K Resistor 1% 0.25W SMA0207 3.00 Each R56,R116 & R118 R0469 22K1 Resistor 1% 0.25W SMA020 5.00 Each...
  • Page 149 (See board drawing AS/A0739/02 issue 3 on page 155 and circuit diagram CD/ A0739/03 issue 3 on page 156). Also see service information . See “SI 000101 Modification of SLE 2000 HFO motor drive circuit board.” on page 243. Issue 8...

  • Page 150: As/A0739/02 Motor Drive Pcb Issue 1 Sheet 1 (Revision B)

    15.10 AS/A0739/02 Motor Drive PCB Issue 1 Sheet 1 (Revision B) Page 150 of 286 Issue 8...

  • Page 151: As/A0739/02 Motor Drive Pcb Issue 1 Sheet 2 (Revision B)

    15.10.1 AS/A0739/02 Motor Drive PCB Issue 1 Sheet 2 (Revision B) Issue 8 Page 151 of 286...

  • Page 152: Cd/A0739/03 Motor Drive Pcb Circuit Diagram Issue 1 (Revision B)

    Motor Drive PCB 15.10.2 CD/A0739/03 Circuit Diagram Issue 1 (Revision B) Page 152 of 286 Issue 8...
  • Page 153 PARTS LIST Finished Item Stock Number A0739/03 Finished Item Description Motor Drive PCB Assy'HFO"PLUS" Drawing Number AS/A0739/02 Issue 1 Part Number Component Description Component Reference(s) Used Unit J0739 Motor Drive Board blank 1.00 Each ITEM 1 (PCB Rev B) C0260 10nF Capacitor 63V 20% MKS2 1.00 Each C0277...
  • Page 154 Part Number Component Description Component Reference(s) Used Unit 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 R0486 100K Resistor 1% 0.25W SMA0207 1.00 Each R0641 1R8 Resistor 1% 0.25w M/Film 8.00 Each R4,R5,R8,R9,R10,R11,R12 &...

  • Page 155: As/A0739/02 Motor Drive Pcb Issue 2 (Revision C)

    15.11 AS/A0739/02 Motor Drive PCB Issue 2 (Revision C) Issue 8 Page 155 of 286...

  • Page 156: Cd/A0739/03 Motor Drive Pcb Circuit Diagram Issue 3. (Revision C)

    Motor Drive PCB 15.11.1 CD/A0739/03 Circuit Diagram Issue 3. (Revision C) Page 156 of 286 Issue 8...
  • Page 157 PARTS LIST Finished Item Stock Number A0739/03 Finished Item Description Motor Drive PCB Assy "HFO PLUS" Drawing Number AS/A0739/02 Issue 2 Part Number Component Description Used Unit Component Reference(s) J0739 Motor Drive Board blank 1.00 Each ITEM 1 (PCB) C0260 10nF Capacitor 63V 20% MKS2 1.00 Each C0277...
  • Page 158 Part Number Component Description Used Unit Component Reference(s) M0307 Terminal Pin(Pcb single sided) 1.00 Each M0309/01 H12 x 20mm Sleeve (1.2mm I/D) 16.00 Each ITEM 90 M0463 T0220 Transistor Heatsink 2.00 Each ITEM 14 M0680/01 Heatsink (modified) 1.00 Each ITEM 2 M0706/03 Label,Hazard Flash (25sq.) 1.00 Each...

  • Page 159: As/A0756 Hfo Start-Up Motor Pcb Issue 1

    15.12 AS/A0756 HFO Start-up Motor PCB Issue 1 Issue 8 Page 159 of 286...
  • Page 160 PARTS LIST Finished Item Stock Number AS/A0756 Finished Item Description HFO Start-up Motor PCB Assembly Drawing Number AS/A0756 Issue 2 Part Number Component Description 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 D0406 1N4148...

  • Page 161: As/A0738/02 Alarm Pcb Assembly

    15.13 AS/A0738/02 Alarm PCB Assembly Issue 8 Page 161 of 286...

  • Page 162: Cd/A0738/02 Alarm Pcb Circuit Diagram

    15.13.1 CD/A0738/02 Alarm PCB Circuit Diagram Page 162 of 286 Issue 8...
  • Page 163 PARTS LIST Finished Item Stock Number A0738/02 Finished Item Description ALARM PCB ASSEMBLY Drawing Number AS/A0738/02 Issue 5 Part Number Component Description Used Unit Component Reference(s) J0738/01 Alarm board pcb Rev.E 1.00 ITEM 1 N2179 Battery Holder (AA size) 1.00 N2096 SMA-24L Audible Alarm 98dB 2.00...
  • Page 164 Part Number Component Description Used Unit Component Reference(s) D0634 ZN458A 1.00 S0242 IC Socket 14 way DIL 2.00 ITEM 5 (U1,U5) S0237 IC Socket 20 way DIL 1.00 ITEM 6 (U2) S0241 IC Socket 8 way DIL 2.00 ITEM 7 (U3 & U4) H3210 M3 x 10 Csk Hd Pozi s.st 2.00...

  • Page 165: A0745/01 Pressure Drift Monitor Board

    15.14 A0745/01 Pressure Drift Monitor Board Issue 8 Page 165 of 286...

  • Page 166: Cd/A0745 Pressure Drift Board Circuit Diagram

    15.14.1 CD/A0745 Pressure Drift Board Circuit Diagram Page 166 of 286 Issue 8...
  • Page 167 PARTS LIST Finished Item Stock Number A0745/01 Finished Item Description HFO"PLUS"Pressure Drift PCB Drawing Number AS/A0745 Issue 2 Last Change Note Number: CN0625 Part Number Component Description Component Reference(s) Used Unit C0450 0.1uF Capacitor 63V 10% MKS2 1.00 Each D0406 1N4148 2.00 Each D1,D2...

  • Page 168: A0746 Flow Trigger Pcb

    15.15 A0746 Flow Trigger PCB Page 168 of 286 Issue 8...
  • Page 169 PARTS LIST Finished Item Stock Number A0746 Finished Item Description Flow Trigger PCB Assembly Drawing Number AS/A0746 Issue 1 Last Change Note Number: CN0558 Part Number Component Description Component Reference(s) Used Unit J0746 Flow Trigger PCB Blank Rev A 1.00 Each ITEM 1 C0450 0.1uF Capacitor 63V 10% MKS2...
  • Page 170 CD/W0317 Wireloom Issue 2: For the standard HFO Plus, see “CD/W0317 Wireloom Issue 2” on page 171. Issue 3: For HFO Plus with HFO NEEP Modification, see “CD/W0317 Wireloom Issue 3” on page 172. Also see “SI 000601 Addition of HFO NEEP” on page 248 for more information.

  • Page 171: Cd/W0317 Wireloom Issue 2

    15.16 CD/W0317 Wireloom Issue 2 A3 version on page 225 of circuit diagram appendix Issue 8 Page 171 of 286...

  • Page 172: Cd/W0317 Wireloom Issue 3

    15.17 CD/W0317 Wireloom Issue 3 A3 version on page 227 of circuit diagram appendix. Page 172 of 286 Issue 8...

  • Page 173: Cd/W0317 Wireloom Issue 4

    15.18 CD/W0317 Wireloom Issue 4 A3 version on page 229 of circuit diagram appendix. Issue 8 Page 173 of 286...

  • Page 174: Front Panel

    15.19 Front Panel Page 174 of 286 Issue 8...

  • Page 175: Sk0057 Power Supply Wiring Diagram

    15.20 SK0057 Power Supply Wiring Diagram Issue 8 Page 175 of 286...

  • Page 176: Cd/W0307 Electronic/Pneumatic Module Interconnection

    15.21 CD/W0307 Electronic/Pneumatic Module interconnection Page 176 of 286 Issue 8...

  • Page 177: Electronic Chassis

    15.22 Electronic Chassis 2000 HFO+ Issue 8 Page 177 of 286...
  • Page 178 Page 178 of 286 Issue 8...
  • Page 179 PARTS LIST Finished Item Description Electronic Chassis Assy' Drawing Number SM/L0260 Part Number Component Description Component Reference(s) Used Unit A0700/03 Display PCB Assy (HFO+) 1.00 ITEM 15 A0701/02 LED PCB assembly (HFO) 1.00 ITEM 16 A0702/05 Ventilator CPU PCB assy (HFO) 1.00 ITEM 2 A0736/04...
  • Page 180 Part Number Component Description Component Reference(s) Used Unit N2125 Sq. Illum push button switch 4.00 SW2, SW3, SW8 & SW10 N2125/18 See “SI 060104 Replacement N2125 push button switches” on page 270. N2126 Yellow lens 19-952-4 3.00 ITEM 30 N2126/18 See “SI 060104 Replacement N2125 push button switches”...
  • Page 181 Pneumatic Unit AS/L0263 Issue 1: For pnuematic assembly fitted with N2524/60 motor assembly see "AS/L0263" on page 182. Issue 2: For pnuematic assembly fitted with N2524/61 motor assembly see "AS/L0263" on page 191. Also see Motor Assemblies on page 29. Issue 3: For pnuematic assembly fitted with HFO NEEP and N2524/61 motor assembly see "AS/L0263"...

  • Page 182: Pneumatic Unit Assy. As/L0263

    15.23 Pneumatic Unit Assy. AS/L0263 15.23.1 AS/L0263 Sheet 1 of 4 Issue 1 (For ventilator with SLE part Nº N2524/60 motor assembly) Page 182 of 286 Issue 8...

  • Page 183: As/L0263 Sheet 2 Of 4

    15.23.2 AS/L0263 Sheet 2 of 4 (For ventilator with SLE part Nº N2524/60 motor assembly) Issue 8 Page 183 of 286...

  • Page 184: As/L0263 Sheet 3 Of 4

    15.23.3 AS/L0263 Sheet 3 of 4 (For ventilator with SLE part Nº N2524/60 motor assembly) Page 184 of 286 Issue 8...

  • Page 185: As/L0263 Sheet 4 Of 4

    15.23.4 AS/L0263 Sheet 4 of 4 (For ventilator with SLE part Nº N2524/60 motor assembly) Issue 8 Page 185 of 286...
  • Page 186 For ventilator with SLE part Nº N2524/60 motor assembly. (See “Motor Assemblies” on page 29. ) PARTS LIST Finished Item Stock Number L0263 Finished Item Description HFO"PLUS" Pneumatic Unit Assy' Drawing Number AS/L0263 Issue 1 Part Number Component Description Component Reference(s)
  • Page 187 Part Number Component Description Component Reference(s) Used Unit N2195/06 24vdc 2w KV Solenoid Valve/HF0 4.00 Each Drg Sht 1-ITEM 31 N2211 O Ring BS010 Black EPDM 2.00 Each Drg Sht 1-ITEM 53 N2212 O Ring BS008 EPDM 1.00 Each Drg Sht 1-ITEM 37 N2213 O Ring BS011 EPDM 2.00 Each...
  • Page 188 Part Number Component Description Component Reference(s) Used Unit T1103 NEEP Restrictor Block 1 00 Each Drg sht 1-ITEM 65 T1104 F.G./Dump Manifold HFO "PLUS" 1.00 Each Drg Sht 1-ITEM 46 T1136 SV2 Bypass Block HFO "PLUS" 1.00 Each Drg Sht 1-ITEM 32 T1138 Orifice Block for HFO "PLUS"...
  • Page 189 Part Number Component Description Component Reference(s) Used Unit N2362/01 Coupling - modified 3.00 Each Drg Sht 4-ITEM 14 N2363 6/4 M5 Male Stud Coupling 15.00 Each Drg Sht 4-ITEM 12 N2364 1610 5/3 M5 Banjo Ring Piece 4.00 Each Drg Sht 4-ITEM 2 N2365 1631 01 M5 Single Banjo Bolt 4.00 Each...
  • Page 190 Part Number Component Description Component Reference(s) Used Unit H4094 M4 Shakeproof Washer s.st 3.00 Each Drg Sht 3-ITEM 24 H4108 M4 x 8 Pan Hd Pozi s.st 1.00 Each Drg Sht 3-ITEM 19 H4110 M4 x 10 Pan Hd Pozi s.st 1.00 Each Drg Sht 3-ITEM 21 H9608...

  • Page 191: As/L0263 Sheet 1 Of 4 Issue 2

    15.23.5 AS/L0263 Sheet 1 of 4 Issue 2 (For ventilator with SLE part Nº N2524/61 motor assembly) Issue 8 Page 191 of 286...

  • Page 192: As/L0263 Sheet 2 Of 4

    15.23.6 AS/L0263 Sheet 2 of 4 (For ventilator with SLE part Nº N2524/61 motor assembly) Page 192 of 286 Issue 8...

  • Page 193: As/L0263 Sheet 3 Of 4

    15.23.7 AS/L0263 Sheet 3 of 4 (For ventilator with SLE part Nº N2524/61 motor assembly) Issue 8 Page 193 of 286...

  • Page 194: As/L0263 Sheet 4 Of 4

    15.23.8 AS/L0263 Sheet 4 of 4 (For ventilator with SLE part Nº N2524/61 motor assembly) For ventilator with SLE part Nº N2524/61 motor assembly. (See “Motor Assemblies” on page 29. ) Page 194 of 286 Issue 8...
  • Page 195 PARTS LIST Finished Item Stock Number L0263 Finished Item Description HFO"PLUS" Pneumatic Unit Assy' Drawing Number AS/L0263 Issue 2 Last Change Note Number: CN0647 Part Number Component Description Component Reference(s) Used Unit A0755 Opto switch PCB assembly 1.00 Each Introduced on CN0647 L0060 HFO "PLUS"...
  • Page 196 Part Number Component Description Component Reference(s) Used Unit N2195/06 24vdc 2w KV Solenoid Valve/HF0 4.00 Each Drg Sht 1-ITEM 31 N2211 O Ring BS010 Black EPDM 2.00 Each Drg Sht 1-ITEM 53 N2212 O Ring BS008 EPDM 1.00 Each Drg Sht 1-ITEM 37 N2213 O Ring BS011 EPDM 2.00 Each...
  • Page 197 Part Number Component Description Component Reference(s) Used Unit T1096 F.G.Front Panel Connection 1.00 Each Drg Sht 1-ITEM 23 t0986 Main Chassis HFO 1.00 Each Drg Sht 1-ITEM 4 T1098 5 Way Connection Block HFO+ 1.00 Each Drg Sht 1-ITEM 49 T1103 NEEP Restrictor Block 1 00 Each...
  • Page 198 Part Number Component Description Component Reference(s) Used Unit N2361 5/3 1/8 Male Stud Coupling 1.00 Each Drg Sht 4-ITEM 7 N2361/64 6/4 1/8 Male Stud Coupling 1.00 Each Drg Sht 4-ITEM 31 N2362 5/3 M5 Male Stud Coupling 18.00 Each Drg Sht 4-ITEM 6 N2362/01 Coupling - modified...
  • Page 199 Part Number Component Description Component Reference(s) Used Unit H3225 M3 x 25 Csk Hd Pozi s.st 3.00 Each Drg Sht 3-ITEM 14 H4010 M4 x 10 Hex Hd St.Stl Screw 1.00 Each Drg Sht 3-ITEM 20 H4091 M4 Nut Full s.st. 3.00 Each Drg Sht 3-ITEM 23 H4094...

  • Page 200: As/L0263 Sheet 1 Of 4 Issue 3

    15.23.9 AS/L0263 Sheet 1 of 4 Issue 3 (For pneumatic unit with HFO NEEP) Page 200 of 286 Issue 8...

  • Page 201: As/L0263 Sheet 2 Of 4

    15.23.10 AS/L0263 Sheet 2 of 4 (For ventilator with SLE part Nº N2524/61 motor assembly) Issue 8 Page 201 of 286...

  • Page 202: As/L0263 Sheet 3 Of 4

    15.23.11 AS/L0263 Sheet 3 of 4 (For ventilator with SLE part Nº N2524/61 motor assembly) Page 202 of 286 Issue 8...

  • Page 203: As/L0263 Sheet 4 Of 4

    15.23.12 AS/L0263 Sheet 4 of 4 (For ventilator with SLE part Nº N2524/61 motor assembly) Issue 8 Page 203 of 286...
  • Page 204 For ventilator with SLE part Nº N2524/61 motor assembly. (See “Motor Assemblies” on page 29. ) PARTS LIST Finished Item Stock Number L0263 Finished Item Description HFO"PLUS" Pneumatic Unit Assy' Drawing Number AS/L0263 Issue 3 Last Change Note Number: CN0647...
  • Page 205 Pressure regulator 0-2 bar 1.00 Each Drg Sht 1 N2181 Pressure Regulator 0-4 bar 3.00 Each Drg Sht 1 N2185/46 Dk blue SLE blender facia label 1.00 Each Drg Sht 1 N2195/06 24vdc 2w KV Solenoid Valve/HF0 3.00 Each Drg Sht 1 N2195/07 24vdc interface Valve c/wB1001 1.00 Each...
  • Page 206 Part Number Component Description Component Reference(s) Used Unit T0982 Bracket for Solenoid 5 1.00 Each Drg Sht 1 T0986 Chassis 1.00 Each Drg Sht 1 T0992 Solenoid Valve Support Strap 1.00 Each Drg Sht 1 T0993 Volume Chamber Support 1.00 Each Drg Sht 1 T0996 Label-Solenoid Valve Positions...
  • Page 207 Part Number Component Description Component Reference(s) Used Unit N2178 O Ring BS905 EPDM 1.00 Each Drg Sht 4use with item 25 N2180/01 Blanking Plug 1/8 4.00 Each Drg Sht 4-ITEM 25 & REG 1 N2303 Elbow Connector WES 6/R 1/8 4.00 Each Drg Sht 4-ITEM 23 N2339...
  • Page 208 Part Number Component Description Component Reference(s) Used Unit 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 1.00 Each Drg Sht 3-ITEM 8 H3130 M3 x 30 Pan Hd Pozi s.st 4.00 Each Drg Sht 3-ITEM 6 H3140...

  • Page 209: A3 Circuit Diagram Appendix

    16. A3 Circuit Diagram Appendix Issue 8 Page 209 of 286...
  • Page 210 This page is intentionally blank. Page 210 of 286 Issue 8...
  • Page 211 CD/A0702/05 Issue 2 Issue 8 Page 211 of 286...
  • Page 212 Page 212 of 284...
  • Page 213 CD/A0702/05 Issue 3 Issue 8 Page 213 of 286...
  • Page 214 Page 214 of 284...
  • Page 215 CD/A0702/05 Issue 4 Issue 8 Page 215 of 286...
  • Page 216 Page 216 of 284...
  • Page 217 Main PCB Circuit Diagram For Rev E Board This section of board is not used Issue 8 Page 217 of 286...
  • Page 218 Page 218 of 284...
  • Page 219 Main PCB Circuit Diagram For Rev F Board (Issue 2) This section of board is not used Issue 8 Page 219 of 286...
  • Page 220 Page 220 of 284...
  • Page 221 Main PCB Circuit Diagram For Rev F Board (Issue 3) This section of board is not used Issue 8 Page 221 of 286...
  • Page 222 Page 222 of 284...
  • Page 223 Main PCB Circuit Diagram For Rev F Board (Issue 4) This section of board is not used Issue 8 Page 223 of 286...
  • Page 224 Page 224 of 284...
  • Page 225 CD/W0317 Issue 2 Wireloom Diagram Issue 8 Page 225 of 286...
  • Page 226 Page 226 of 284...
  • Page 227 CD/W0317 Issue 3 Wireloom Diagram Issue 8 Page 227 of 286...
  • Page 228 Page 228 of 284...
  • Page 229 CD/W0317 Issue 4 Wireloom Diagram Issue 8 Page 229 of 286...
  • Page 230 Page 230 of 284...
  • Page 231 Issue 8 Page 231 of 286...

  • Page 232: Service Information And Technical Bulletins

    SI 990401 Attenuated alarm sounder for the 12/24V voltage monitor. See page 236. SI 990801 Enhanced EMC. See page 238. SI 000101 Modification of SLE 2000 HFO motor drive circuit board. See page 243. SI 000201 Leak Alarm Trigger Threshold. See page 246.

  • Page 233: Service Information

    17.1 Service Information 17.1.1 SI 990301 Calibration of Issue 2 of the A0745 Pressure Drift Board Subject :Calibration of Issue 2 of the A0745 Pressure Drift Board Equipment :SLE2000 HFO and SLE2000 HFO ‘PLUS’ Infant Ventilators Serial Numbers :Boards A0745 issue 2 (recognisable as having 3 potentiometers instead of 2) Service Information Number :Si 990301...
  • Page 234 Adjust RV3 until the voltage measured at DIFF is the same at +140cmH O as it is at - 70cmH O to within 20mV. (DIFF should be in the region of 8V). Pay special attention to the indicated polarities when measuring voltages. Set the DC voltage between HIGH(+) and LOW(-) to +180mV ±5mV using RV2.

  • Page 235: Si 990302 Possible Inadvertant Solenoid Failure Messages

    1 to 0 transition current of 650mA at 2V). For a similar reason it is necessary to change the solenoid failure detection circuit for an SLE2000 Ventilator. Modification procedure for A0702 boards on the SLE ventilators. Connect a diode (1N4007) in parallel with R34 with its cathode (+ve) connected to the drain of Q4(IRLU110) on all A0702 boards.

  • Page 236: Si 990401 Slightly Attenuated Alarm Sounder For The 12/24V Monitor

    17.1.3 SI 990401 Slightly attenuated alarm sounder for the 12/24V voltage monitor. Subject :Slightly attenuated alarm sounder for the 12/24V voltage monitor. Equipment :SLE2000HFO/HFO ‘plus’ Serial Numbers :All SLE2000HFO ventilators prior to serial numbers 9H0301(99) All SLE2000HFO “plus” ventilators prior to serial numbers 9J0305(99) Service Information Number :Si 990401...
  • Page 237 New Production Directive Testing the 12/24V voltage monitor With the power off, disconnect the +24V line from the PSU (Pin 13 on J2). Switch the mode to CPAP and check the operation of the 12V supply supply monitor by ensuring that the battery alarm sounds.

  • Page 238: Si 990801 Enhanced Emc

    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 Ventilator Initial Control Control Firmware...
  • Page 239 LCD Display L0015 Remove the LCD Display and fit four M3 solder tags as shown in fig 3. SLE part No: M0661/ Refit the LCD Display using four M3 nuts as also shown in fig 3SLE part No: H3091 Cable W0293 for LCD Display L0015 to HFO Main PCB A0736/03 Drill M3 clearance hole in PCB slider rail T0659/02 as in shown fig 4b.
  • Page 240 Figure 1 Figure 2 Figure 3 Solder to PCB at these points Page 240 of 286 Issue 8...
  • Page 241 Figure 4b Issue 8 Page 241 of 286...
  • Page 242 CUT TRACK IN 8 PLACES U6 ‘Vin’ Figure 5 U6 ‘0v’ Verifying the mods. Visually inspect 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.

  • Page 243: Si 000101 Modification Of Sle 2000 Hfo Motor Drive Circuit Board

    17.1.5 SI 000101 Modification of SLE 2000 HFO motor drive circuit board. Subject :Modification of SLE 2000 HFO motor drive circuit board. Equipment :SLE 2000 HFO & HFO+ ventilators Serial Numbers :All Service information Number :Si 000101 Change Note Ref...
  • Page 244 Remove the integrated circuit from the motor drive board at position U3. Insert into the connector the circuit board supplied. Note: the orientation of this board. Page 244 of 286 Issue 8...
  • Page 245 Replace the integrated circuit on the new board. Note: the integrated circuit has to be aligned with the dot corresponding to the cut out in the connector. Fit motor drive board back into ventilator, ensuring backlight connector is plugged securely into it's socket, before pushing board back into its socket. Fit thumb retaining screw.

  • Page 246: Si 000201 Leak Alarm Trigger Threshold

    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 be ordered from your local component supply using the Philips part Nº: CW20C 104M...
  • Page 247 Issue 8 Page 247 of 286...

  • Page 248: Si 000601 Addition Of Hfo Neep

    HFO+ modification kit N9009/01 (See Table 1 on page 267 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. All swarf and foreign matter has to be removed from the interior of the ventilator before being returned to service.
  • Page 249 Instructions on how to perform modification Disconnect all gas hoses, the patient circuit and disconnect from the power supply. Step 1: Access to the Pneumatic Module 1. Open side flap (A) and remove the exhalation block and any filters. 2. Remove the two screws (1) from the rear of the ventilator.
  • Page 250 Step 2: Removal of the motor assembly for modification Motor Assemblies The SLE 2000 HFO+ ventilator has two models of motor assembly, Part Nº N2524/60 and N2524/61. The first step is to ascertain which motor assembly is fitted to your ventilator.
  • Page 251 Removal of N2524/60 motor assembly Release 2 screws (1) on the 9 pin D connector and unplug connector. Removal of N2524/61 motor assembly Unplug 8 way Molex connector (2) and release the rubber grommet (3) from the slot. The disassembly is the now the same for both motor assemblies. Remove the screw and washer (4) from the solenoid support strap (5).
  • Page 252 Remove the clip (6) to release the volume chamber (7). Disconnect the pneumatic tube (8) from the volume chamber (7). Remove the volume chamber and clip from the pneumatic unit. Remove the screws and washers (9) from the solenoid support bracket (10). Remove the bracket from the pneumatic unit.
  • Page 253 Remove the two NEEP block retaining screws and washers (12) to release the NEEP block. Disconnect the HFO jet tube (13) from the SV4 solenoid (14). Remove the fresh gas relief valve tube (15) by cutting cable tie (16) and easing the tube off the connector.
  • Page 254 Remove the two screws (19) retaining the fresh gas relief valve cover (20) 10. Remove the fresh gas relief valve cover (20) 11. Remove the two screws (21) securing the orifice block. 12. Remove the three screws and shake proof washers (22) retaining the motor assembly.
  • Page 255 Step 4: New Shuttle valve and NEEP adjusting block assembly Assemble the Shuttle Valve and NEEP assembly as indicated in the diagram below using the parts from section A of the Modification Kit on page 267 Connectors N2362 and N2363 are re-used from the old NEEP adjusting block. N2517 T1103 N2516...
  • Page 256 Step 5: Replacement of SV4 solenoid valve. Disconnect the SV4 to SV5 connection tube (1) Disconnect the SV4 solenoid from the loom by removing the electrical connectors (2). Discard the solenoid SV4 (3). To allow the new SV4 solenoid to fit the SV3 solenoids body (4) has to be rotated through 180º.
  • Page 257 Rotate the body of the SV3 Solenoid valve through 180º and re-tighten the nut. Refit the electrical connectors to the SV3 solenoid. Extract the brass spacers (T0243) from the old support strap. They can be pushed out using a small screw driver. 10.
  • Page 258 D. Using a screwdriver and pliers or M3 spanner tighten the screw and nut. This will force the spacer into the grommet squarely. E. Remove the screw, washers and nut leaving the grommet and spacer in place. Repeat the process for all the other indicated holes.
  • Page 259 12. Assemble the new SV4 solenoid to the support strap in the position shown. The solenoid valve requires two nylon spacers as it is thinner than the discard valve. The photograph below show the configuration of screws, spacers and valve. Screw (H3140) Support strap (T0992) Washer Nylon (H3095)
  • Page 260 Step 6: Modification of SV4 electrical connector The electrical connector for the SV4 solenoid valve has to be modified to accept the smaller electrical contact prongs. Remove the existing tab connectors from the two wires. Strip back plastic sleeve to reveal bare wire. Thread through insulation cover.
  • Page 261 Step 7: Reconnection of Pneumatics Refer to “Pneumatic Schematic” on page 262 Reassemble the three existing solenoid valves to the new support strap. The strap will already have the new SV4 solenoid attached by this stage. Disconnect the SV4 to SV5 pneumatic tube (1) from the SV5 (2) solenoid and rotate it through 180º.
  • Page 262 Pneumatic Schematic Page 262 of 286 Issue 8...
  • Page 263 Step 8: Modification of the HFO jet. Replace the ventilator back on it’s stand. Reconnect the gas supplies, exhalation block, patient circuits and power supply. Then locate the NEEP Jet hole NEEP jet Start with a 0.5mm drill held in a pin chuck and by hand drill out the hole.
  • Page 264 100K Cut track from U21/8 to U21/9 and U21/9 to U21/10. Link from U21/8 to U21/10.(use W0103 red link wire) Add 100 K ¼W (SLE Part Nº R0486) resistor from PLA 32a to PLA 27a. T3 (Base) Track side. Page 264 of 286...
  • Page 265 Add 10 K ¼W (SLE Part Nº R0463) resistor from T3 (base) to U21/11 via link wire. This resistor should be added to the component side of the board. Drill two holes to accommodate the resistor. Make sure that you do not cut any of the tracks on the reverse 10K...
  • Page 266 R48 10K Circuit Diagram Step 10: Modification of Harness Link PLA 27a to PLB 20b (SLE Part Nº W0001/02) Step 11: Final Check Carry out a final operational check and verify that the ventilator is working correctly. Note: That HFO oscillation is now disabled on a high alarm condition.
  • Page 267 Modification Kit N9009/01 The modification kit consist of the following items listed in the three tables below. Section A, for the items for new Shuttle Valve / NEEP adjustment block. Section B, for the new SV4 solenoid valve. Section C, for all the remaining parts. Section A.
  • Page 268 Section C. Part Nº Component description Quantity Note M0305/03 Spacer-o/d6 x i/d3.4 x 5 2.00 Fits SV4 to new T0992 with Nylon screws below H3140 M3 x 40 Pan Hd Pozi s.st 2.00 H3091 M3 Nut Full s.st 2.00 H3094 M3 S/Proof Washer s.st 2.00 DIN6798...

  • Page 269: Si 020901 Cleaning, Disinfection And Sterilisation Of Sle Ventilators

    17.1.8 SI 020901 Cleaning, Disinfection and Sterilisation of SLE ventilators. Subject :Cleaning, Disinfection and Sterilisation of SLE ventilators. Equipment :SLE 2000, SLE2000 HFO, SLE2000 HFO Plus Serial Numbers :All Service information Number :SI020901 Date :24/09/2002 Introduction The MDA has issued a safety notice SN 2001(28) “Compatibility of medical devices and reprocessing equipment with Decontamination agents,”...

  • Page 270: Si 060104 Replacement N2125 Push Button Switches

    17.1.9 SI 060104 Replacement N2125 push button switches Subject :Replacement N2125 push button switches Equipment :SLE2000, SLE2000 HFO & SLE2000 HFO+ infant ventilators. Serial Numbers :All Service Information Number :SI 060104 Issue 1 Change Note Ref. :CN1134 Date :20/01/2006 Introduction This service information letter is to inform users of the SLE2000, SLE2000 HFO and SLE2000 HFO+ infant ventilators that the N2125 push button switch, N2126 yellow lens and N2127 red lens are no longer available.
  • Page 271 Caution: The new /18 switch terminals are marked differently when compared to the old switch that it replaces. Please use the following wiring guide. SLE2000 PB1 and PB3 use N2128/04/18 switch. PB2 use N2128/02/18 switch. SLE2000 HFO & HFO+ SW2, SW3 and SW8 use N2128/04/18 switch. SW10 use N2128/02/18 switch. Step 9.

  • Page 272: Technical Bulletins

    17.2 Technical Bulletins 17.2.1 TB 000201 New versions of control software. Subject :New versions of control software. Equipment :SLE 2000, SLE 2000 HFO and SLE 2000 HFO+ Ventilators. Serial Numbers :All Technical Bulletin Number :TB 000201 Change Note Ref :CN 616...

  • Page 273: Tb 000801 Ventilator Firmware Status

    Date :08/09/00 Introduction The purpose of this technical bulletin is to provide information on the control and display ver- sions of firmware available for the SLE 2000, SLE 2000 HFO and SLE 2000HFO Plus ventila- tors. SLE 2000 Control firmware.
  • Page 274 30/04/97 CN0308 Implementation of an HFO disconnection alarm and pressure transducer drift alarm. V1.8 15/05/97 CN0362 Modification of High alarm level (minimum setting). Update of SLE logo. Addition of conditional assembly directives for french version. V1.9 18/11/97 CN0428 Inclusion of display firmware in German.
  • Page 275 SLE 2000 HFO PLUS Control firmware. Firmware Date of Change Details of change. version change note Nº V1.17 02/10/98 Indication of delivery of a machine breath changed from audible to visual in spontaneous period of SIMV mode. V1.18 28/06/99 CN0616 Removal of the audible indication of machine triggered breaths in patient triggered modes (SIMV and PTV).

  • Page 276: Tb 010201 New Operational Warnings

    The purpose of this technical bulletin is to provide information on the new operational warnings for the SLE 2000 HFO and SLE 2000HFO Plus ventilators when ventilating a neonate in high frequency oscillation with 3mm or smaller size endotracheal tubes.

  • Page 277: Tb 040401 V0226 Potentiometer

    17.2.4 TB 040401 V0226 Potentiometer Subject :V0226 Potentiometer Equipment :SLE2000, SLE2000 HFO & SLE2000 HFO+ Infant ventilators Units affected :Units manufactured after March 2004 Technical Bulletin Number :TB 040401 Change Note Ref :CN 0983 Date :05/04/2004 Introduction This technical bulletin is to inform the users of the SLE2000, SLE2000 HFO & SLE2000 HFO+ Infant ventilators that the design of the V0226 potentiometer has changed.

  • Page 278: Tb051101 Prevention Of Unintended Oxygen Leaks

    Change Note Ref Date 14/11/2005 SLE ventilators have chassis holes and a fan system intended to flush ambient air through internally enclosed compartments. This is to prevent any unintended oxygen leak from building-up to a hazardous level. Apart from the inflammable nature of oxygen, it also has an aging effect on mechanical parts.
  • Page 279 For example, completely obstructing the exhalation block output port, while ventilating with 100% oxygen in HFO mode, can cause leaks than will increase oxygen concentration the air surrounding the motor assembly, which could reduce the life of the belt and motor. The ventilator will clearly alarm for any such sudden obstruction.

  • Page 280: Issue Revision Record

    18. Issue Revision Record Issue 1: Initial issue. Issue 2: CN 0764 Issue 3: CN 0738 Issue 4: CN 0798 Issue 5: CN 0921, CN 1001, CN 1005, CN 1022 Issue 6: CN 1134 Issue 7: CN 1208 Issue 8 Page 280 of 286...

  • Page 281: Index

    19. Index Electronic/Pneumatic Module interconnection......... 176 Exchanging a Pneumatic Unit..46 Airway pressure monitoring selection switch. Exhalation block....... 13 ............13 Alarm mute button......13 Alarm PCB ........161 Alarm sounder volume ..... 63 Fan Alarm ........77 Auxiliary Output........ 14 Fan and Filter........
  • Page 282 Main Board........128 Recommended equipment ....48 Manual breath button....... 13 Reset button........13 Maximum CPAP/PEEP Pressure..63 Rotating jet........15 Maximum Inspiratory Pressure ..63 routine maintenance ......10 Maximum Oscillator Pressure ..63 RT200 Calibration Analyser ..... 48 Medical air inlet.
  • Page 283 ............232, TB 010201 ........276 TB 040401 ........277 TB051101 ........278 Technical Bulletins ......232 test point .......... 18, 19 Time control switch......13 Troubleshooting ....... 76 Verifying Pressure Drift Detection..72 Wireloom.......... 170 Issue 8 Page 283 of 286...
  • Page 284 This page is intentionally blank. Page 284 of 286 Issue 8...
  • Page 285 SLE reserves the right to make changes without prior notice in equipment, publications and prices as may be deemed necessary or desirable. Issue 8 Page 285 of 286...

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