Dräger Babylog 8000 Service Manual

Dräger Medical AG & Co. KGaA 6173.3
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_ _Printed on_18.05.05_F61733XXT01.fm
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Function description Babylog 8000
10.9 Front PCB (Babylog 8000/Babylog 8000 plus with EL Display)
The Front PCB reads in the keys of the potentiometer and display field, controls the LEDs of the
potentiometer and display field, powers the EL display with operating voltage (contrast), and generates
the control signal for the bargraph.
Fig. 23: Block diagram of the Front PCB
DC
DC
+5 V, +12 V
EL display, complete
EL display converter
EL display
Cable of EL display
key port
Keys and option switches of the front panel
LEDs of the front panel
Alarm LEDs
Bargraph of the monitoring field
Potentiometer of the potentiometer field
LED driver
Amplifier
Bargraph
URef
A
D
6x
Adress
decoder
UB
Control bus
und
Adress bus
Data bus
Test A/D-Wandler

Dräger Babylog 8000 Specifications

General

Leak Compensation	Yes
Type	Ventilator
Pressure Range	0 to 80 mbar
Tidal Volume Range	2-2000 mL
Frequency	1-150 breaths/min
Inspiratory Time	0.1-3.0 sec
PEEP	0 to 20 mbar
FiO2 Range	21-100%
Power Supply	100 to 240 V AC, 50/60 Hz