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Acetaldehyde in PET bottle analysis system

Technical Note Nr. 1:
Message "Blank contains acetaldehyde" when it really doesn't.

Applicable to: MBPet Version 5.0.
Last change: 29 de Marzo de 2000.

SUMMARY

Problem is due to incorrect configuration of the system.

PROCEDURE

Procedure consists of two steps:

1. Insure that the HP Chemstation and the MBPet match the name of the acetaldehyde.
2. Insure that HP Chemstation saves the report in the correct file.

These are the required steps:

1. Insure that the HP Chemstation and the MBPet match the name of the acetaldehyde.

   At the HP Chemstation, load method "Acetalde.M", go to "View" menu, "Data Analysis", "Calibration", "Calibration Table" and verify that the name given to the acetaldehyde match EXACTLY with the name given at the "Manteinance" screen at the MBPet software. If that is not the case, modify them so they will match even with the capital letters (if used).

   Save method as "Acetalde.M".

2. Insure that the HP Chemstation saves the report in the correct file.

At the HP Chemstation, load method "Acetalde.M", go to "View", "Data Analysis", "Report", "Specify report", and make sure that "File" and ".TXT" checkboxes are selected at the left upper corner of the window, and that "Report" is written at the "File name" box.

One more thing to check is that the report type must be ESTD.

Save method as "Acetalde.M".

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