Hach-Lange DR 3800 User Manual - Manual (Page 52)

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Standard Operations
5.5 Barcode Programs
A special barcode reader in cell compartment #1 automatically
reads the barcode on the 13 mm cuvette/vial as the cuvette/vial
completes a single rotation. The instrument uses the barcode
identification to automatically set the correct wavelength for the
analysis and calculates the result immediately with the help of the
stored factors.
In addition, measured values are recorded at 10 different positions
during a rotation. A special outlier-elimination program is run and
then the average of the measured values is calculated. Cuvette/vial
errors and soiling are recognized and highly precise results are
obtained.
Figure 10 Cell compartment #1 for barcode 13 mm cuvettes/vials