Fresenius Medical Care 4008 E Technical Manual page 61

PSW (pressure switch) monitoring
The following requirements must be fulfilled to run the PSW test:
– DIP switch 8 Dip array 2 on P.C.B. LP631 must be set to ON.
– Rinse free followed by disinfection or heat disinfection (Dis. I–V)
or
Mandatory rinse as individual program
START
V104 opens
no
PSW 104
Pressure decrease
open
by membrane pumps
yes
V102 opens
no
PSW 102
Pressure decrease
open
by membrane pumps
yes
Error message
Rinse Failure F05
PSW 104
no
and
Rinse Failure F06
PSW 102
open
Rinse Failure F12
(PSW 104 and
yes
System stopped.
Pressure build-up
V91/104 open
V100 closed
Pressure build-up
PSW 104 yes
V91/104 open
closed
V100 closed
no
Pressure build-up
V91/100/102
open
Pressure build-up
yes
PSW 102
V91/100/102
closed
no
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Fresenius Medical Care 4008 4/08.03 (TM)
PSW 104
closed
PSW 102
closed
PSW 104
closed
PSW 102
closed
or
or
Start
PSW 102
PSW
closed).
monitoring
open
Error message
no
or Rinse
Failure F13
yes
Error message
no
Rinse
Failure F07
yes
Error message
no
Rinse
Failure F08
yes
Pressure reduction of
the rinsing chambers
yes
Mandatory
(3 strokes each of
rinse required
the conc. and bic.
no
Evacuation of the
conc. and bic.
(12 strokes each of
the conc. and bic.
24 V switched off.
System stopped.
pump)
line
pump)