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CLEANING AND MAINTENANCE
AQUALAB VSA uses a 10 to 20 mesh indicating drierite as the desiccant. Indicating drierite is
not required but the size of a replacement desiccant must be 10 to 20 mesh.
5.2 SAMPLE CHAMBER CLEANING
To clean the AQUALAB VSA, carefully follow these instructions and refer to the labeled
diagram in Figure 28. A video is also available at AQUALAB 4TE certification (metergroup.
com/meter_knowledgebase/aqualab-4te-certification).
Figure 28 AQUALAB VSA sample chamber diagram
The purpose of the cleaning procedure is to remove grease, dirt, and other soluble
substances that can absorb or release water during verification, calibration, or sample
testing. The mirror must be clean for a smooth and even dew formation. Any contaminants
(e.g., fingerprints) on the mirror can cause the dew to form unevenly and affect the accuracy
of the reading.
The instrument should be cleaned if visual inspection indicates the chamber is dirty or as
part of the verification process (Section5.2). METER recommends cleaning before each new
isotherm test.
5.2.1 CLEANING KIT
The AQUALAB comes with an AQUALAB Cleaning Kit that contains enough cleaning supplies
to clean the instrument for about 1 year. The following supplies are included:
• Spatula (a thin plastic rod)
• Deionized water for cleaning
• Cleaning Solution
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