3 . R e p a i r I n s t r u c t i o n s
1 / 2 0 1 0
3 - 23
BA-TE-DE08C M.KAY
SW9xx_sm_Chapter 3_1-2010.doc/pdf <100329> yymmdd
B. Braun Avitum AG
Dialog
+
SW 9.xx
3.3.8.8
Membrane Test
open
offen
closed
geschlossen
PDA
VDA
UFP
FPE
FPA
VEBK
VDEBK
VABK
VDABK
VBP
VDE
RVDA
Fig. : Flow Diagram Membrane Test
Test Membrane
The membrane is loaded with a pressure of 1.3 bar due to the high speed of FPE
with a flow of 800 ml/min. A leakage would cause a pressure increase at PDA.
FPA runs with a slow speed during this test to prevent a back pressure.
Test VDEBK
A leakage of the valve leads to a pressure increase at PDA.
LLC Test
Code
LLC Test Steps
LLS Test Steps
LLS Test
Code
8.
1255x
Membrane test
FPE = 800 ml/min
FPA = 20 ml/min
Valve Status:
VEBK1/2, VDABK1/2 ------------------- opened
VDEBK1/2, VABK1/2 -------------------- closed
VBP, VDE, VDA ------------------------ opened
Final Condition:
Test timeout 60 s or wait for inversion of
LLS_SELFTESTBIT from LLS
Start condition for the test (10 s):
1.
Correct valve position
2.
UFP stopped (UF rate < 500 ml/h)
3.
+300 mmHg < PDA < +450 mmHg
Test 10 s,
max. deviation
∆
PDA < 25 mmHg,
Acknowledge with inversion of LLS_SELFTESTBIT
12101 –
12121
12122 –
12131
12132
12133
