E Diagnostics quick reference
AM Aspirate task parameters
274 Bravo Platform User Guide
Dynamic tip extension
(0–20 mm/µL)
The rate at which the Bravo 96AM Head moves
during the AM Aspirate task. The software
calculates the distance over which the tips will
move without crashing.
Use dynamic tip extension to prevent spills as the
pipette tips displace the liquid.
To move the tips:
• At the same rate as the volume change.
Calculate dynamic tip extension (DTE) as
follows:
DTE = (well depth)/(well vol) = 1/A, where A is
the cross-sectional area of a well with straight
walls
• Faster than the volume change.
DTE > 1/A
• Slower than the volume change.
DTE < 1/A
The starting and ending positions can be
calculated as follows:
(V
aspirated
* DTE) + Distance
well bottom
Note: Instead of a negative aspirated volume, the
software automatically moves downward toward
the well bottom with each aspirate action.
Pipette technique The pipette location offset you want to use for the
AM Aspirate task.
The list of pipette techniques are defined in the
Pipette Technique Editor.
Perform tip touch The option to touch the pipette tip on one or more
sides of the well.
Which sides to use for tip touch The side or sides of the well to use during tip
touch: North, South, East, West, North/South,
West/East, West/East/South/North.
Tip touch retract distance
(–20 to 50 mm)
The vertical distance for the pipette tips to rise
before touching the sides of the wells.
Parameter Description
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