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How does the instrument determine the chart position and size

Applicable instrument: Spectro LFP qb, Spectro Swing, Spectro LFP S3

The instrument is capable of automatically finding the position of the sample to be measured.
When you insert a target for measurement, the instrument needs to know where the patches are located. This is automatically determioned by scanning some special border lines (auto-position lines):

If the sensing unit is connected to the platform, the autopositioning is done by taking a picture with the camera and calculating the corner points by the sensing unit.
If the sensing unit is not connected, or the picture processing fails, the spectral unit is used to scan the lines and determine the corner points.

Please verify when inserting the target into the sample holder (specially in transmission mode), that the space before the auto-position line is visible and not covered by the sample holder or tape.

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