13. Blood/Saline & Air Detectors
13. BLOOD/SALINE AND AIR DETECTORS
The Blood/Saline and Air Detectors are part of the safety system of
the Arena Instrument.
The detection of blood in the venous blood line by the
Blood/Saline Detector will automatically activate the Air Detector
and prompt the operator to start the treatment. The Air Detector
can also be manually activated on the display panel, as well as
momentarily reset to clear air from the system. Refer to the
Operator’s Manual for more information.
The Blood/Saline (optical sensor) Detector and Air (ultrasonic
sensor) Detector are two electrically independent components
molded into a single module or housing, and both continuously
monitor the venous blood line. See Figure 13-1 for location, and
Figure 13-2 for the components. If either detector fails, the sensor
module must be replaced.
Figure 13-1. Blood/Saline and Air Detector Location
Figure 13-2. Blood-Saline & Air Detector Components
157-1278-920 Rev A 13-3
April 2004
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