Fresenius Medical Care 4008 E Technical Manual page 15

Bypass test
Test description:
Check of the following functions:
– Heater relay
– Bypass (electric)
– Check of the temperature range changeover
Illustration:
LP 632
CPU 2
X632/B27
X631/A20
LP 631
CPU 1
LP 635
(4008 E)
Display
LP 924
(4008 H)
1-8
Fresenius Medical Care 4008 4/08.03 (TM)
X632/A26
X632/A10
X632/A9
X632/C25
X632/C26
X632/B22
X632/A6
X632/A6
X632/A5
X632/A4
X632/B28
X631/A21
LP 630
Mother
board
LP 649
(4008 B)
board
LP 922
(4008 S)
Testgenerierung/Generation of Test
Rueckmeldung/Acknowledgement
HOT_RINSE
H_REL_W
EM_H_OFF
V24_EN
V24B_EN
CI
V26
V26
V24B
V24
LP 633
Input
board
DATA BUS
V24
LP 639
(4008E/H)
X639/
Power
A20
Logic
X639/A12
LP 647
X639/A17
(4008S/B)
X634R/ X634R/
A18 C22
LP 634
Output
X634R/
X634R/
board
A23 C24
V24B V26