Gambro AK 95, Service Manual

Page: 66 / 247

Technical Data
AK 95 HCEN9135 Rev. 10.2005
3:3
Air detection
Detection method: Ultrasonic detector placed at the venous drip chamber. The
detector has a two channel structure and the function of the
detector is tested at the function test made by the
microcomputers.
Drip chamber size: Diameter 22 mm
Sensitivity: Bubbles larger than 1 µl will be trapped by the drip chamber.
An alarm will be issued if the blood level falls below the
middle of the air detector.
Heparin administration
Heparinization: 0 to 10 ml/h (
±
1 ml/5h or
±
5%) The accuracy is based on
tests with 20 ml and 30 ml syringes
Syringe size: Syringes shall comply with ISO 7886-2. Upon delivery, the
machine is set for a 20 ml Terumo syringe. Syringes of other
volumes and brands can be set.
Stop time: Heparinization stops before end of treatment 0.00 to
9.59 h
Counter pressure: Maximum 400 mmHg
Accumulated heparin volume: 0 to 999.9 ml
Water supply
Flow rate: During treatment: maximum 770 ml/min
During disinfection and rinse/drain: a maximum flow rate of
800 ml/min is required.
Minimum inlet pressure: 0.12 MPa (1.2 bar)
Maximum inlet pressure:
0.6 MPa (6 bar)
Inlet temperature: +5 to +30 ºC
Connector in/outlet: Diameter 8 mm
Quality: Inlet water quality must comply with local regulations and if
no such regulation is available follow ISO 13959.
Level for conductivity shall not exceed 0.1 mS/cm.
It is possible to use water with higher conductivity if it
consists mainly of sodium salts. This may however affect the
accuracy of the fluid composition.
Drain: The drain tube outlet must be placed between floor level and
maximum 1.2 m above the outlet connection from the fluid
monitor. An air gap to atmospheric pressure must always be
arranged at the tube outlet.
Length of drain tube: <10 m
High pressure guard
transducer: ±500 mmHg, (±10 mmHg or ±5 %, whichever is largest)
Inlet pressure switch (INPS): Increasing: +150 mmHg, ±20 mmHg
Decreasing: +99 mmHg, ±20 mmHg