Siemens 900 D Ventilator
Fabricante:
Modelo:
900 D
Fecha:
1994
Categoría:
Grupo:
Descripción:
Información
The Servo Ventilator 900 C.D/E consists of two separate units. The pneumatic unit comprises the gas conduction system with two pressure transducers, two flow transducers and two servo valves. Each transducer, continuously delivers its actual value to the electronic unit. The servo valves are used as CONTROLLING ELEMENTS for the control of inspiratory and expiratory gas conduction. The electronic unit comprises three controlling systems, two for regulation of inspiration and one for regulation of expiration. The three controlling systems will be in use, one at a time, depending on the TIMING control and the selected ventilation MODE.

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Manual de servicio
Type manuel:
Manual de servicio
Páginas:
56
Tamaño:
12.00 Mbytes (12582185 Bytes)
Idioma:
english
Revisión:
3
Manuel-ID:
93 82 912 E314E
Fecha:
01 noviembre 1994
Formato:
Documento Scaned, todo legible.
Fecha de subida:
09 marzo 2018
MD5:
d3b8630015a86a7f38db7e19f0700a35
Descargas:
507
Información
Introduction ... 4 Principle diagram ... 6 Pneumatic unit Gas flow through the Ventilator ... 8 Gas supply ... 9 Bellows and spring assembly ... 10 Gas supply unit . . . ... 11 02cell ... 12 Relief/safety valve and working pressure manometer ... 12 Flow transducer ... 14 Pressure transducer ... 15 Inspiratory valve and step motor ... 16 Expiratory vafve and pull magnet ... 17 Non-return valve ... 17 Transducer interface ... 18 Electronic unit Principle of operation ... 19 Reference level generation ... 20 Regulation of inspiration ... 23 Timing ... 28 Monitoring ... 33 Regulation of expiration ... 39 Voltage supply ... 41 Input/output ... 42 Disassembling Disassembling the pneumatic unit ... 44 Disassembling the electronic unit ... 44 Replacement of step motor assembly and pull magnet ... 45 Replacement of power supply unit ... 45 Replacement of safety catches ... 45 Replacement of flow transducer ... 46 Adjustments Adjustment of meters Z1 and Z2 ... 46 Adjustment of valve arm ... 46 Replacement and adjustment of R5 ... 47 Removing the front panel knobs ... 48 Troubleshooting ... 49 Index ... 52 Block diagram ... 56

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