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5 Setting sensor thresholds
Calculating the Plate presence threshold
102
BenchCel Microplate Handler User Guide
Related information
Calculating the Plate presence threshold
About this topic
You must calculate the Plate presence threshold for the specific type of labware you are
using.
Before you start, see
“Overview for setting sensor thresholds” on page 100 .
Workflow for calculating the Plate-presence threshold
Use the following workflow to calculate the Plate presence threshold.
Determining the Plate presence reading when no microplates are loaded
To determine the highest Plate presence reading when no microplates are loaded:
1
Install a labware rack at each stacker head, and place three microplates in each
labware rack. The microplates should rest on top of the stacker grippers. (See
“Filling and emptying the labware racks” on page 119 .)
IMPORTANT
Do not click Load All in BenchCel Diagnostics.
For information about… See…
Worksheet for sensor thresholds “Worksheet for setting sensor thresholds”
on page 113
Automation-ready labware “Labware considerations” on page 27
Labware definitions and the Labware
Editor VWorks Automation Control Setup Guide
Filling and emptying the labware racks “Filling and emptying the labware racks”
on page 119
Step Task
1 Determine the highest Plate-presence reading among all the stacks when no
microplate is loaded (P
unloaded
).
2 Determine the lowest Plate-presence reading among all the stacks when the
first microplate is loaded in each stack (P
loaded
).
3 Use the results from steps 1 and 2 to calculate the threshold.