Labcyte Echo 520 User Manual page 65

When you are changing plate inserts, look for
the insert size, which is located in the upper
right corner.
When you place the microplate insert onto the
plate gripper, the sensors will be flush against
the insert sensor. The plate insert will rest on
top of three pads and should move easily from side to side.
See Figure 3.6.
Figure 3.6 Source plate gripper stage (entire assembly)
Sensors
Insert sensor
Pusher plate
assembly
Source plate
insert
Plate gripper
The plate insert will be moved into the correct position by the gripper arm
when the source plate gripper stage moves through the process door.
When you load a source microplate onto the plate insert, well A1 is located
in the upper left corner (see Figure 3.7). As a handy reminder, the upper
left corner of the plate insert is labeled A1. The insert contains sensors that
inform the Echo liquid handler which plate is being used.
Pads
System Description 3-7