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Technical description A-ELEC
Document No. 8502856
D-9
Mains / Battery switching logic
The batteries are disconnected if:
•
Mains power is available and the ADU is switched on.
•
The ADU is in standby mode.
•
The ADU was running on battery has turned itself off after the batteries are discharged.
In all other cases the ADU gets its power from the batteries. The batteries are always put on charge
when the mains power is available. The battery logic is based on four comparators and one timer
circuit.
Audio amplifier board
The audio amplifier board is mounted on the mother board. Its function is to amplify alarms signals
generated on the CPU board to the loudspeaker. It generates 1 W output power.
Digipower board
The digipower board converts the VBUS to +5V. It supplies the CPU and display controller boards.
The powerup and voltage monitoring circuit on the board provides a reset signal to the CPU and
display controller boards. The CPU must refresh the watchdog once every second otherwise a reset
signal is sent to the CPU.
Connectors for the A-FGC1 and A-EV1 contain VBUS voltage and serial communication lines.
The board also contains RS232 buffers for external serial communication.
Figure 8
Digipower board
CPU board B-CPU4
The B-CPU4..01 is made with PC-technology components. Radisys chipset and PLD handle all
timings and signaling for an internal ISA bus. With B-CPU4..01 there is no external software cassette.
Содержание Anesthesia Delivery Unit S/5
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Страница 62: ...Maintenance Document No 8502852 5 4 Figure 1 Service menu overview ...
Страница 76: ...Datex Ohmeda ADU 5 18 Document No 8502852 Figure 24 Transformer unit Figure 25 Transformer unit 2 1 4 6 ...
Страница 80: ...Datex Ohmeda ADU 5 22 Document No 8502852 Figure 30 Compact Circuit A CC1 exploded view 5 1 2 3 4 ...
Страница 88: ...Maintenance 5 30 Document No 8502852 Figure 38 Maintenance parts ...
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Страница 132: ...Forms and charts 7 8 Document No 8502852 Pneumatic chart of the Electronic Ventilator A EV1 ...
Страница 133: ...Forms and charts Document No 8502852 7 9 Pneumatic chart of the Fresh Gas Control Unit A FGC1 ...
Страница 135: ...Forms and charts Document No 8502852 7 11 Pneumatic chart of Table frame without A FGFI ...
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Страница 137: ...Document No 8502852 7 13 Pneumatic chart of A WGU frame without A FGFI ...
Страница 138: ...7 14 Document No 8502852 Pneumatic chart of A WGU frame with A FGFI ...
Страница 139: ...Document No 8502852 7 15 Pneumatic chart of Table frame without A FGFI ...
Страница 140: ...7 16 Document No 8502852 Pneumatic diagram of table frame with A FGFI ...
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Страница 147: ...Technical bulletins Document No 8502852 9 1 9 TECHNICAL BULLETINS ...
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Страница 211: ...Spare parts A AUF Document No 8502853 A 59 Figure 53 Exploded view of the gas inlet block and the gas labels 4 1 2 3 ...
Страница 229: ...Technical description A FGC1 Document No 8502854 B 3 Figure 3 Technical principles of the A FGC1 ...
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Страница 257: ...Technical description A FGC1 Document No 8502854 B 31 Figure 25 CPU Board block diagram ...
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Страница 304: ...Datex Ohmeda ADU B 78 Document No 8502854 This page is intentionally left blank ...
Страница 307: ...Spare parts A FGC1 Document No 8502854 B 81 Figure 60 Fresh Gas Control Unit A FGC1 1 2 4 3 6 5 7 8 10 11 12 ...
Страница 311: ...Spare parts A FGC1 Document No 8502854 B 85 Figure 64 Parts inside the A FGC1 1 2 3 4 5 6 7 8 10 ii iii i iv 9 ...
Страница 319: ...Spare parts A FGC1 Document No 8502854 B 93 Figure 71 Gas connection unit 1 2 3 4 5 6 7 8 9 10 11 ...
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Страница 360: ...Datex Ohmeda ADU C 34 Document No 8502855 This page is intentionally left blank ...
Страница 362: ...Datex Ohmeda ADU C 36 Document No 8502855 The ventilator calibrating tree Figure 27 The ventilator calibrating tree ...
Страница 400: ...Datex Ohmeda ADU C 74 Document No 8502855 Ventilator diagnostic page layout Figure 42 Ventilator diagnostic page ...
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Страница 417: ...Spare parts A EV1 Document No 8502855 C 91 This page is intentionally left blank ...
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Страница 432: ...Datex Ohmeda ADU D 2 Document No 8502856 Figure 1 Principle of the Central Electronics ...
Страница 477: ...Troubleshooting A ELEC Document No 8502856 D 47 Trouble shooting PCMCIA Card Figure 57 Troubleshooting PCMCIA Card ...
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Страница 483: ...Spare parts A ELEC Document No 8502856 D 53 Figure 60 11 12 1 2 4 3 5 6 3 8 9 13 14 15 16 10 ...
Страница 486: ...Datex Ohmeda ADU D 56 Document No 8502856 Figure 63 Transformer unit Figure 64 Transformer unit 2 1 4 ...
Страница 487: ...Spare parts A ELEC Document No 8502856 D 57 Figure 65 Transformer unit 5 3 ...