PerkinElmer Wallac 1420, User Manual

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Operating Wallac 1420
22
Barcode options
An optional barcode reader can be included. This allows you to load barcode labelled plates,
which are identified by the barcode reader. Codabar, Code39, Interleaved 2 of 5, Code 128,
UPC and EAN barcodes can be read.
There are two sorts of identification that can be used:
This identification can be by plate number, in which case you must select the protocol as
part of the start up procedure.
Alternatively, the barcode can be the number of the protocol to be used for measuring that
plate. This system is especially useful for models using stackers. In this case the first plate
to be loaded from the stacker must have a barcode. Measurement can be started simply by
briefly pressing the button on the counter. See page 118 for more details on barcode usage.
Plate orientation
The figure shows a typical 96-well plate and how it is to be orientated when loading it either
directly into Wallac 1420 or into an input stacker. The A1 position must be in the left corner
furthest from you i.e. the side that enters the counter first. If a barcode is used, it should also
be on the side that enters the counter first. The barcode can then be used to identify the plate
or to select the protocol.
Position
A1
Loading
direction
Optional barcode
Plates used in a stacker
must have this ledge at
least on the short sides