GE AKTA avant, User Manual

Page: 466 / 538

9.7.5 System settings - Air sensor
The table below describes the air sensor related system settings available for ÄKTA avant.
Description Instruction name
Enables or disables the air sensor alarm for the built-in
air sensor at inlet A, inlet B or the sample inlet. If an air
sensor alarm is enabled and air is detected, an alarm
will be triggered and the method will be paused. Alarm air sensors
Enables or disables the alarm for the optional air sensor.
If the alarm is enabled and air is detected, an alarm will
be triggered and the method will be paused. Alarm air sensor ext
Sets the sensitivity of the built-in air sensors at inlet A,
inlet B or the sample inlet. Air sensor sensitivity
•
Normal (30 µl) is used to detect when a buffer or
sample vessel is empty.
•
High (10 µl) is used to detect small air bubbles
Sets the sensitivity of the optional air sensor number.
The optional air sensor can be located either before any
of the inlets A or B or after the injection valve. Air sensor sensitivity ext
Normal (30 µl) is used to detect when a buffer or sample
vessel is empty. High (10 µl) is used to detect small air
bubbles
•
When located before an inlet, the default sensitivity
is Normal.
•
When located after the injection valve, the default
sensitivity is High and the pump currently pumping
onto the column is used for calculating the air vol-
ume for the external air sensor.
Note:
Using an air sensor after the injection valve is only useful
when running at lower pressures. High pressure dissolves
any small air bubbles present.
466 ÄKTA avant User Manual 29035184 AE
9 Reference information
9.7 System settings
9.7.5 System settings - Air sensor