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10. Cleaning and Maintenance
The accuracy of your WP4C is vitally dependent on keep-
ing your instrument clean. Dust and sample debris can
contaminate the sampling chamber and must therefore be
regularly cleaned out. To clean your instrument, carefully
follow these instructions.
Tools Needed
•
WP4C Cleaning Kit
Note: Kimwipes
are ideal for cleaning because they don't leave much of a lint residue
like most tissues. They also don't have any other compounds in the
tissue that may contaminate the sensors in the WP4C's block. Never
use cotton swabs to clean the block sensors. Most cotton swabs con-
tain adhesives and other compounds that are released and transferred
to the mirror and other surfaces, contaminating them.
Accessing the Block
1. Unplug your WP4C.
2. Remove the case lid screw located on the back panel.
Carefully remove the lid by pulling the back of the lid
®
are included in the WP4C Cleaning Kit. They
WP
4C
10. Cleaning and Maintenance
39
PotentiaMeter
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