Terumo 801763, Operator'S Manual, Page: 223 / 359

Modules
7-3
Air Bubble Detection (ABD)
Connect Air Sensor
The air sensor size and weight allow it to mount directly on the tubing. However, the
sensor can be mounted on a bracket to provide stability and is recommended for
1/4 in. tubing.
Attach mounting bracket to pole, if desired.
Determine proper position within perfusion circuit.
• Proper positioning of the air sensor is the choice of the medical professional.
• The air sensor must be positioned so there will be sufficient time to stop the
pump and vent air bubbles before reaching the patient.
• High flow rate, differences in circuit configuration, and changing conditions of
operation can cause air bubbles to travel 4 ft. (1,2 m) when the pump stops. Air
bubbles may then move to a higher point in the circuit.
1. If necessary, use reducing connectors to adapt the
tubing section so that the appropriate size of tubing
can be placed into the air sensor.
2. Open the sensor by pushing up on the bottom of
the latch and slide latch off the door bracket.
3. Insert tubing.
4. Close and latch the sensor door to secure the
sensor around the tube. Do not apply gel, as
acoustical couplant is not required nor recommended
for the sensor.
5. If desired, connect the sensor to the bracket. The
air sensor may be mounted directly on the tubing,
provided the weight of the sensor does not kink or
stress the tube.
• Do not position the sensor upside down (cover
toward floor) as bubbles may go undetected.
CAUTION: Do not drop air, level, or flow sensors as shock may damage the
sensor.
CAUTION:
Do not sterilize air, level, or flow sensors as sterilization may
damage the sensor.
WARNING: The air sensor must be positioned a minimum of 4 ft. (1,2 m)
from the patient to allow the air bubble detection system sufficient time to
respond before air can reach the patient.
WARNING: The air sensor latch must be completely closed to secure the
sensor to the tubing.
WARNING: The air sensor may falsely alarm with intense electrical noise.