Page 72 of 258 Issue 10 (01/10/2004)
When the fresh gas is dumped a residual flow of 1 LPM0.8 to 1.5LPM is maintained by REG3
in order to prevent excessive temperatures in the humidification chamber.
Both the SLE2000 single use patient circuit (N2188) and the reusable patient circuit (N2220)
incorporate a restrictor close to the inspiratory port of the ET connector. This generates a
nominal 20cmH
2
O pressure in the fresh gas supply system as long as there are no leaks.
Pressure transducer PTR2, located on the A0702/04 PCB, monitors the fresh gas pressure
and associated circuitry will activate a leak alarm should this pressure fall below 17.5cmH
2
O
and activate a block alarm if the pressure rises above 80cmH
2
O.
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 ±45cmH
2
O. 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 off the HFO driving gas pressure. SV4 also serves to modulate the HFO driving
gas pressure in various ways during conventional ventilation; that is, during the inspiratory
phase or during the expiratory phase, thus allowing combined modes of HFO and conventional
ventilation.
An additional safety solenoid SV5 is incorporated in the HFO pressure line (along with SV4).
This solenoid is only energised (open) when an HFO mode is selected. In all other modes, it is
closed, cutting off the HFO supply pressure.
Содержание 2000 HFO
Страница 1: ...Issue 10 SLE 2000 HFO Ventilator Service manual High Frequency Oscillatory Ventilator 0120 ...
Страница 8: ...Page 8 of 258 Issue 10 01 10 2004 This page is intentionally blank ...
Страница 9: ...Issue 10 01 10 2004 Page 9 of 258 Introduction ...
Страница 11: ...Issue 10 01 10 2004 Page 11 of 258 Ventilator Control Description ...
Страница 17: ...Issue 10 01 10 2004 Page 17 of 258 Access to Internal Components ...
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Страница 27: ...Issue 10 01 10 2004 Page 27 of 258 Maintenance ...
Страница 35: ...Issue 10 01 10 2004 Page 35 of 258 Overhual ...
Страница 37: ...Issue 10 01 10 2004 Page 37 of 258 Exchanging a Pneumatic Unit ...
Страница 39: ...Issue 10 01 10 2004 Page 39 of 258 Setup and Calibration ...
Страница 57: ...Issue 10 01 10 2004 Page 57 of 258 Technical Specification ...
Страница 73: ...Issue 10 01 10 2004 Page 73 of 258 Troubleshooting Chart ...
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Страница 79: ...Issue 10 01 10 2004 Page 79 of 258 Circuit Details ...
Страница 80: ...Page 80 of 258 Issue 10 01 10 2004 17 Circuit Details 17 1 AS A0700 02 Display Board Assembly ...
Страница 81: ...Issue 10 01 10 2004 Page 81 of 258 17 1 1 CD A0700 02 Display Board Circuit Diagram ...
Страница 83: ...Issue 10 01 10 2004 Page 83 of 258 17 2 AS A0701 02 LED PCB Assembly ...
Страница 84: ...Page 84 of 258 Issue 10 01 10 2004 17 2 1 CD A0701 02 LED Board Circuit Diagram ...
Страница 87: ...Issue 10 01 10 2004 Page 87 of 258 17 3 AS A0702 04 CPU PCB Issue 2 Sheet 1 of 2 ...
Страница 88: ...Page 88 of 258 Issue 10 01 10 2004 17 3 1 AS A0702 04 CPU PCB Issue 1 Sheet 2 of 2 ...
Страница 93: ...Issue 10 01 10 2004 Page 93 of 258 17 4 AS A0702 04 CPU PCB Issue 3 Sheet 1 of 2 ...
Страница 94: ...Page 94 of 258 Issue 10 01 10 2004 17 4 1 AS A0702 04 CPU PCB Issue 3 Sheet 2 of 2 ...
Страница 99: ...Issue 10 01 10 2004 Page 99 of 258 17 5 AS A0702 04 CPU PCB Issue 5 Sheet 1 of 2 ...
Страница 100: ...Page 100 of 258 Issue 10 01 10 2004 17 5 1 AS A0702 04 CPU PCB Issue 5 Sheet 2 of 2 ...
Страница 126: ...Page 126 of 258 Issue 10 01 10 2004 17 10 AS A0737 01 Bargraph Display PCB Assembly ...
Страница 127: ...Issue 10 01 10 2004 Page 127 of 258 17 10 1 CD A0737 01 Bargraph Display PCB Circuit Diagram ...
Страница 129: ...Issue 10 01 10 2004 Page 129 of 258 17 11 AS A0738 02 Alarm PCB Assembly ...
Страница 130: ...Page 130 of 258 Issue 10 01 10 2004 17 11 1 CD A0738 02 Alarm PCB Circuit Diagram ...
Страница 134: ...Page 134 of 258 Issue 10 01 10 2004 17 12 AS A0739 02 Motor drive PCB Issue 1 Sheet 1 Revision B ...
Страница 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 ...
Страница 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 ...
Страница 139: ...Issue 10 01 10 2004 Page 139 of 258 17 13 AS A0739 02 Motor Drive PCB Issue 3 Revision C ...
Страница 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 ...
Страница 143: ...Issue 10 01 10 2004 Page 143 of 258 17 14 AS A0756 HFO Motor Start Up PCB Issue 2 ...
Страница 145: ...Issue 10 01 10 2004 Page 145 of 258 17 15 AS A0745 Pressure Drift Monitor Board Issue 1 ...
Страница 146: ...Page 146 of 258 Issue 10 01 10 2004 17 15 1 CD A0745 Pressure Drift Monitor Board Circuit Diagram Issue 1 ...
Страница 147: ...Issue 10 01 10 2004 Page 147 of 258 17 16 AS A0745 Pressure Drift Monitor Board Issue 2 ...
Страница 148: ...Page 148 of 258 Issue 10 01 10 2004 17 16 1 CD A0745 Pressure Drift Monitor Board Circuit Diagram Issue 5 ...
Страница 150: ...Page 150 of 258 Issue 10 01 10 2004 17 17 Serial Interface Option CD A0702 03 ...
Страница 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 ...
Страница 153: ...Issue 10 01 10 2004 Page 153 of 258 17 19 Front Panel ...
Страница 154: ...Page 154 of 258 Issue 10 01 10 2004 17 20 SK0057 Power Supply Wiring Diagram ...
Страница 155: ...Issue 10 01 10 2004 Page 155 of 258 17 21 CD W0307 Electronic Pneumatic Module interconnection ...
Страница 156: ...Page 156 of 258 Issue 10 01 10 2004 17 22 Electronic Chassis Sheet 1 of 2 ...
Страница 157: ...Issue 10 01 10 2004 Page 157 of 258 17 22 1 Electronic Chassis Sheet 2 of 2 ...
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Страница 187: ...Issue 10 01 10 2004 Page 187 of 258 18 A3 Circuit Diagram Appendix A3 circuit Diagram Appendix ...
Страница 188: ...Page 188 of 258 Issue 10 01 10 2004 The following chapter contains A3 version of the circuit diagrams ...
Страница 189: ...Page 189 of 258 CD A0702 04 Issue 2 ...
Страница 190: ...Page 190 of 258 ...
Страница 191: ...Page 191 of 258 CD A0702 04 Issue 3 ...
Страница 192: ...Page 192 of 258 ...
Страница 193: ...Page 193 of 258 CD A0702 04 Issue 4 ...
Страница 194: ...Page 194 of 258 ...
Страница 195: ...Page 195 of 258 CD A0736 03 Issue 2 Note Please check the revision status of the main board ...
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Страница 197: ...Page 197 of 258 CD A0736 03 issue 3 Note Please check the revision status of the main board ...
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Страница 199: ...Page 199 of 258 CD A0736 03 issue 4 Note Please check the revision status of the main board ...
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Страница 201: ...Page 201 of 258 CD A0736 03 issue 5 Note Please check the revision status of the main board ...
Страница 202: ...Page 202 of 258 ...
Страница 203: ...Page 203 of 258 CD W0308 ...
Страница 204: ...Page 204 of 258 ...
Страница 205: ...Issue 10 01 10 2004 Page 205 of 258 Service Information and Technical Bulletins ...
Страница 212: ...Page 212 of 258 Issue 10 01 10 2004 Circuit diagram before modification Circuit Diagram after modification ...
Страница 221: ...Issue 10 01 10 2004 Page 221 of 258 The pneumatic circuit diagram is shown here ...
Страница 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 ...
Страница 228: ...Page 228 of 258 Issue 10 01 10 2004 Figure 4b ...
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Страница 237: ...Issue 10 01 10 2004 Page 237 of 258 100nf ...
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