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
3.3.15
Equality Test for Blood Side
Pressure Sensors
The pressure sensors are connected together via the filled tubing system with bag and
thus have the same pressure level. Additionally the feedback of the level regulation
valves, the level regulation pump LRP (PPR) and the SAKA are checked.
Objective
Test the equality of pressure sensors with opened tubing system.
Test code
32
Repeats until error message
3
ID error message
1163: Blood side pressure sensor test not OK
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.
3202x
Prerequisites for Test:
a)
Blood side must not be stopped by TLC or LLC.
If stopped: Message 1140 is displayed.
No timeout.
b)
If BS is not stopped HDFonline task must enable
the start of the tests. A delay occurs only with
autopriming (set pressure).
Timeout 2 min
2.
Test code = 32 to LLS
Test code = 32 back to LLC
3.
3210x
LLC activates VBT, VPA, VPV, VPU and SAKA
VPU must be activated to prevent a pressure
equalisation to the environment and that the levels in
the chambers do not change.
VPE remains closed to prevent a pressure equalisation
if PBE is not connected.
Test initialisation
32000
4.
3220x
Test timeout 60 s and wait for inversion of
LLS_SELFTESTBIT from LLS
Check of current detection for VBT, VPA, VPV, VPE,
VPD, SAKA and PPR
Acknowledge with inversion of LLS_SELFTESTBIT
32001
5.
3230x
LLC deactivates VBT, VPA, VPV, SAKA
and activates VPE
6.
3240x
Test timeout 60 s and wait for inversion of
LLS_SELFTESTBIT from LLS
Check of current detection for VBT, VPA, VPV, VPE,
VPD, SAKA and PPR
Acknowledge with inversion of LLS_SELFTESTBIT
32020
7.
3250x
LLC deactivates VBE and VPU
VPD is activated
PPR is activated with the PWM PPRLOW (PWM for line
with small chamber, setting in TSM)
8.
Initialise mean value storage for PA, PV, PBS and PBE
Check of current detection for VBT, VPA, VPV, VPE, VPD
and PPR
32002
9.
3260x
Wait for inversion of LLS_SELFTESTBIT from LLS
(timeout 15 s)
Evaluate every 250 ms continuous mean value from
the 4 values of PA, PV, PBS and PBE.
Save values from PA, PV, PBS, PBE and compare the
pressure sensor PA, PV, PBE and PBS (if present):
32004
10.
|PV – PA| must be
≤
20 mmHg.
|PV – PBE| must be
≤
20 mmHg or |PBE| < 10 mmHg.
32005
11.
|PV – PBS| must be
≤
20 mmHg or |PBS| < 10 mmHg.
32006
12.
Acknowledge with inversion of LLS_SELFTESTBIT
32010
13.
Detected inversion of LLS_SELFTESTBIT
Calculate mean value storage of PA, PV, PBS and PBE
14.
3260x
(Error) received B24ON - mean value of PA and PV
deviate more than
±
40 mmHg.
15.
(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).
16.
Completed
Close VPD
