
Functional description
2.2.3 LM-ECG board
Patient signals are connected to overload protection circuits (resistors and gas-filled surge
arresters) and analog switches to instrumentation amplifiers. Then the signals are amplified by 480
and limited by slew rate. Then they are A/D-converted, analyzed and transferred to module bus in
digital form.
SLEW-
RATE
DETECTOR
SLEW-
RATE
DETECTOR
SLEW-
RATE
DETECTOR
ANTI-
ALIAS
ANTI-
ALIAS
ANTI-
ALIAS
A/D
MICRO-
PROCESSOR
(uP)
OPTO-
COUPLERS
POWER
SOURCE
OPTO-
COUPLERS
POWER
SOURCE
PATIENT
OVERLOAD PROTECTION
ANALOG SWITCHES
LM-MODULE BUS
ISOLATION
uP
uP
uP
SUPPLY
VOLTAGES
HP
Filter
uP
HP
Filter
uP
HP
Filter
uP
SLEW-
RATE
DETECTOR
ANTI-
ALIAS
uP
HP
Filter
uP
R
L
F
C
N
LEAD SELECTION LOGIC
Controlled by ECG lead
selection signals from uP
Resp
amplifier
Sync. Rectifier
Amplifier
DEFIBRILLA-
TION
DETECTOR
uP
31 kHz
from uP
OPTO-
COUPLER
OPTO-
COUPLER
Sync. signal
Reset
Feedback
Figure 4
LM-ECG measurement block diagram
Analog ECG section
ECG cable is connected to patient connector pins 1 to 5 (ECG signals) on the input board which
contains an overload protection circuit.
Leads are connected to amplifiers via analog switches. The state of the switches depends on the
cable type.
Document No. 8000060-1
11
Содержание F-LM1
Страница 4: ...Datex Ohmeda S 5 Light Monitor Document No M1037863 2 ...
Страница 8: ...Datex Ohmeda S 5 Light Monitor Document No M1051339 iv ...
Страница 68: ...Datex Ohmeda S 5 Light Monitor Document No M1051339 60 ...
Страница 78: ......
Страница 80: ...Datex Ohmeda S 5 Light Monitor Document No 8001934 2 ii ...
Страница 88: ...Datex Ohmeda S 5 Light Monitor Document No 8001934 2 8 ...
Страница 89: ...Appendix A Planned maintenance form APPENDIX A 9 Document No 8001934 2 ...
Страница 90: ...Datex Ohmeda S 5 Light Monitor Document No 8001934 2 10 ...
Страница 94: ......
Страница 96: ...Datex Ohmeda S 5 Light Monitor Document No M1051339 ii ...
Страница 111: ...Service menu Document No M1051339 15 4 SERVICE MENU There is no service menu available for the CPU board ...
Страница 112: ...Datex Ohmeda S 5 Light Monitor Document No M1051339 16 ...
Страница 114: ......
Страница 116: ...Datex Ohmeda S 5 Light Monitor Document No 8000060 1 ii ...
Страница 128: ...Datex Ohmeda S 5 Light Monitor Document No 8000060 1 12 ...
Страница 134: ...Datex Ohmeda S 5 Light Monitor Document No 8000060 1 18 ...
Страница 136: ......
Страница 140: ...Datex Ohmeda S 5 Light Monitor 2 Document No 8000060 1 ...
Страница 200: ...Datex Ohmeda S 5 Light Monitor 62 Document No 8000060 1 ...
Страница 201: ...APPENDIX A Check form 63 Document No 8000060 1 APPENDIX A ...
Страница 202: ...Datex Ohmeda S 5 Light Monitor 64 Document No 8000060 1 ...
Страница 206: ......
Страница 208: ......
Страница 210: ...Datex Ohmeda S 5 Light Monitor Document No 8000060 1 ii ...
Страница 224: ......
Страница 226: ...Datex Ohmeda S 5 Light Monitor Document No 8000060 1 ii ...
Страница 232: ......
Страница 234: ...Datex Ohmeda S 5 Light Monitor Document No 890201 5 ii ...
Страница 244: ......
Страница 246: ...Datex Ohmeda S 5 Light Monitor and Light Solo Document No M1051340 ii ...
Страница 253: ...Service menu Document No M1051340 7 6 SERVICE MENU There is no service menu available for the power adapter ...
Страница 254: ...Datex Ohmeda S 5 Light Monitor and Light Solo Document No M1051340 8 ...
Страница 256: ......
Страница 258: ...Datex Ohmeda S 5 Light Monitor and Light Solo Document No 890200 5 ii ...
Страница 274: ...Datex Ohmeda S 5 Light Monitor and Light Solo Document No 896192 1 ii ...
Страница 283: ...External Battery Charger N LCHGR 7 2 Exploded view Document No 896192 1 9 ...
Страница 284: ...Datex Ohmeda S 5 Light Monitor and Light Solo Document No 896192 1 10 ...
Страница 286: ......
Страница 288: ...Datex Ohmeda S 5 Light Monitor Document No 8000060 1 ii ...
Страница 302: ...Datex Ohmeda Light Monitor Document No 8000060 1 14 ...
Страница 304: ......
Страница 306: ...Datex Ohmeda S 5 Light Monitor This page intentionally left blank Document No M1051358 ii ...
Страница 316: ...Datex Ohmeda S 5 Light Monitor 65 66 64 Document No M1051358 10 ...
Страница 325: ...Spare parts Document No M1051358 19 ...
Страница 328: ...Datex Ohmeda S 5 Light Monitor This page intentionally left blank ...
Страница 330: ......
Страница 332: ...Datex Ohmeda S 5 Light Monitor Document No 896551 2 ii ...
Страница 340: ...Datex Ohmeda S 5 Light Monitor Document No 896551 2 8 ...
Страница 342: ......
Страница 344: ...Datex Ohmeda S 5 Light Monitor Document No 896552 2 ii ...
Страница 350: ...Datex Ohmeda S 5 Light Monitor Data card Figure 7 Only Data card no menu card allowed Document No 896552 2 6 ...
Страница 352: ......
Страница 354: ...Datex Ohmeda S 5 Light Monitor Document No 896553 2 ii ...
Страница 360: ......
Страница 362: ...Datex Ohmeda S 5 Light Monitor Document No 896554 2 ii ...
Страница 367: ...Method of Replacing the Lamp Unit LCD Backlight ...
Страница 368: ......