Air sensors
The movable air sensor may be optionally mounted on any inlet. When not in use, it
should be placed in the recessed holder on the inlet side of the system frame as illustrated
below.
The UNICORN instruction Alarms:Air_Alarm can be used to enable the air alarm. The
system will be set to Pause if the sensor detects air. The instruction Monitors:AirSen-
sor_Sensitivity can be used to control the sensitivity of the air sensors, as outlined in
the table below.
Make sure that the air sensors are filled with liquid before the alarms are en-
abled, otherwise the alarm will immediately be triggered and cause the system
to be set to Pause.
Note:
detects bubbles with diameter greater than...Sensitivity set to...
4 mm (~34 μl)High
7 mm (~180 μl)Medium (default)
16 mm (~2.1 ml)Low
The default position for the movable air sensor is Disabled.
The default position for the air sensor located before the column(s) is Enabled.
ÄKTAprocess Operating Instructions 29-0252-49 AA 117
5 Operation
5.1 Prepare the system
5.1.2 Prepare system components
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