Operating Manual
ANNEX 4 – SELF-TESTS
Software 2.6
B|BRAUN
Annex 4
Page 7 of 7
SHARING EXPERTISE
2.6_CA-EN_03
Blood-side pressure build-up test
Blood-side pressure holding test
Venous pressure holding test
Safety Air Clamp (SAK) test
The following leakage tests are performed in step 9 of the filling and rinsing
phase:
SAK is closed by the Supervisor while the blood pump is operating.
Within 30 s, the venous pressure must reach 200 mmHg, otherwise alarm A29
will be initiated.
When the venous pressure reaches 200 mmHg, the blood pump is stopped for
5 s and SAK is closed by the Controller.
Then Supervisor opens the SAK (however, SAK is still closed by the Controller).
The venous pressure loss must not be higher than 30 mmHg during the 5 sec
period while the blood pump is stopped, otherwise alarm A30 will be initiated.
At the same time, the absolute difference value between the venous pressure
PV and the prefilter pressure PBE is determined which may not be higher than
20 mmHg, otherwise alarm A31 will be initiated.
Step 9
Filling and rinsing
A29
A30
A31
Heating function test
Verification in step 9 of the filling and rinsing phase whether a correct
temperature rise of the dialysate by the heating is performed.
The heating is switched on with a set temperature 43.5 °C. Test is successful if the
temperature of the heater plate reaches 41.5 °C measured by the Controller and
42.0 °C measured by the Supervisor within 100 sec. Otherwise alarm A32 will be
initiated. If the temperature reaches 45.0 °C, alarm A67 is activated.
Step 9
Filling and rinsing
A32
A67
Check correct insertion reinfusion line
Verification in step 9 of the filling and rinsing phase whether the reinfusion line is
mounted correctly.
Test is successful if PDF variation during pressurization test is < +/-20 mmHg,
otherwise alarm A25 will be initiated.
Step 9
Filling and rinsing
A25