Gambro AK 95 S Service Manual page 114

Base-kit
12. Enter Service/Calibr/Transducers/
External/ Arterial pressure transducer.
12.1 Press "Select" to start calibration routine.
12.2 Make sure that nothing is connected to the
transducer (zero pressure)
12.3 Check zero level of the Arterial Pressure
Transducer.
Tolerance: ± 5 mmHg.
Calibrate if necessary (see chapter
calibration for details).
13. Enter Service/Calibr/Transducers/
External/ Venous pressure transducer
CPU P.
13.1 Press "Select" to start calibration routine.
13.2 Make sure that nothing is connected to the
transducer (zero pressure).
13.3 Check zero level of the Venous Pressure
Transducer.
Tolerance: ± 5 mmHg.
Calibrate if necessary (see chapter
calibration for details).
13.4 Enter Service/Calibr/Transducers/
External/ Venous pressure transducer
CPU C.
13.5 Press "Select" to start calibration routine.
13.6 Make sure that nothing is connected to the
transducer (zero pressure).
13.7 Check zero level of the Venous Pressure
Transducer.
Tolerance: ± 5 mmHg.
Calibrate if necessary (see chapter
calibration for details).
14. Enter Diagnose/BM/Pumps and check that
the blood pump stops when the cover is
opened.
15. Start the blood pump and let it run at
lowest possible speed. Open the blood
pump cover and place a magnet (1) on the
sensor for the cover. Stop the blood pump
rotor by manually grabbing the handle (2).
Check that the power to the blood pump
motor is switched off within 2 seconds.
AK 95 / AK 95 S HCEN12189 Rev. 10. 2006
16. Check the zero level of the three pressure
transducers:
- Degassing pressure transducer
- HPG pressure transducer
- Pressure Dialysis, PD
Note! To reach atmospheric pressure in
the transducer housing, disconnect the
corresponding tube.
17. If installed: Calibrate the pH-sensor with a
buffer solution according to the Calibration
manual.
18. Remove the blood leak detector cover and
clean the inside of the blood leak housing.
Mount a blood leak calibration cover. Make
sure that the filter is in horizontal posi-
tion, start the AK 95 S.
Enter the Service menu, select calibration,
transducer, intern and blood leak detector.
Place A-pickup tube in concentrate contai-
ner.
Press "Select" to enter the blood leak
calibration routine.
Note! Let the machine stabilize in
conductivity and temperature (37.5 °C) a
few minutes.
Wait for green fluid path.
Check the blood leak detector limits 0 and
100 ±10.
Calibrate if necessary (see chapter
calibration for details).
19. Drain the AK 95 S and replace the blood
leak calibration cover.
20. Attach pressure reference instrument
before the heater. Use a silicon T.
Note! Be careful when opening the fluid
tubes. Put a piece of paper around the tube
connector to avoid leakage inside the
monitor.
Maintenance Manual
5:11