3 . R e p a i r I n s t r u c t i o n s
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SW 9.xx
3.3.16
Pressure Test Substitution Line
S-Online HDF Online
If the substitution line s-online is connected at the beginning of the blood side
self test and the filling of the tubing system is performed by the machine
(autopriming): LLC performs a pressure test of the port connectors and the lines
between the port and OSP. This tubing is connected with the pressure sensor
PA via the arterial tubing adapter. The test is performed with positive pressure.
The build-up is performed in the DFS system with FPE/FPA via a pressure drop
at the throttle DDE and an opened VSAE. The pressure test is performed for s-
online after the equality test of the pressure sensors in the blood side test
block.
If autopriming is not performed s-online can not be tested. As an information
LLS generates an alarm Leakage Check S-Online after the initial start of OSP in
therapy. This information is generated even if the autopriming of the s-online
test was not performed by LLC.
If the s-online is not connected during the pressure test this is not detected
and a message to check the line is not generated after connection and the start
of online.
Test code
40
Repeats until error message
1
ID error message
1166: Self test substitution line failed
Actions after error
Return to window: Repeat blood line self test with
key.
LLC Test
Code
LLC Test Steps
LLS Test Steps
LLS Test
Code
1.
4002x
Prerequisites for Test:
Blood side must not be stopped by TLC or LLC.
If stopped: Message 1140 is displayed.
No timeout.
2.
Test code = 40 to LLS
Test code = 40 back to LLC
3.
4010x
Opened VSAE
Test initialisation
40000
4.
4020x
Pressure build-up with FPE/FPA in chamber flow
through mode via DDE until PA > 270 mmHg
(no pressure control for pressure sensor PA!)
Valve Status:
VDFF, VDE, VDA, VSB, VSAA ------------------closed
VBP, VSAE ---------------------------------opened
Timeout 20 s
5.
S-online Pressure Test
Valve Status
:
VSAE closed, BPA and OSP stopped
Start condition for the test (for 5
s):
1.
Correct valve position (VSAE closed)
2.
PA > 250 mmHg
3-
PA < 500 mmHg
40001 –
40010
6.
Test 10 s,
Averaging MeanPA,
Determine MinPA and MaxPA
Check –500 mmHg < PA < 500 mmHg,
max. deviation
∆
PA < 50 mmHg,
-450 mmHg < PA < 450 mmHg,
40011
7.
Check:
- MaxPA - MeanPA < 50 mmHg,
- MeanPA - MinPA < 50 mmHg
Acknowledge with switch-off VGB
40012
40013 –
40018
8.
4020x
Wait for B24OFF (timeout 30 s)
9.
VGB ON
40019
10.
4030x
Wait for B24ON (timeout 15 s)
11.
4070x
(Error) the test prerequisites from HDFonline task are
not given during one of the test steps (e.g.
autopriming, HDF filter rinsing required after LF error).
12.
4099x
Completed
