Bio-Rad ChromLab™ Software - Manual (Page 102)

3 | Preparing the Instrument
100 | NGC Chromatography Systems and ChromLab Software
Connecting the Air Sensor Module
The air sensors enable the ChromLab™ software to detect air bubbles and
automatically trigger appropriate events. The air sensor module has a magnetic
backing and can attach to the side of the NGC instrument. The module can hold up
to four air sensors.
Two types of air sensors are available that differ in their internal diameter.
 Large air sensors connect to 1/8" ID FEP tubing to detect end of buffer or
end of sample
 Smaller air sensors connect to 1/16" ID PEEK tubing to detect end of
buffer or end of sample, or to detect if air is present in the system
Note: The air sensor module accommodates both sizes simultaneously.
The air sensors can be inserted into the ports on the air sensor module. ChromLab
detects the presence or absence of air sensors in the module. If you have fewer
than four air sensors on the module, you must cover the unoccupied ports with a
protective blank cover that is provided with the module to prevent liquid from
entering into the module's electronic circuitry.
Caution: All air sensors connected to the air sensor module must be filled with
liquid and devoid of air. A connected air sensor that is not plumbed and primed
can trigger an air-bubble sensing event, which causes the pumps to stop and
the blue air sensor LEDs to turn on.