WP4C 9 CLEANING AND MAINTENANCE
9 Cleaning and Maintenance
The accuracy of your WP4C is vitally dependent on keeping your
instrument clean. Dust and sample debris can contaminate the sam-
pling chamber and must therefore be regularly cleaned out. To clean
your instrument, carefully follow these instructions. Your instru-
ment ships with a cleaning kit that should last one year with regular
cleanings. METER has additional cleaning kits available for pur-
chase with supplies to clean your WP4C.
Note: Kimwipe
R
are included in the WP4C Cleaning Kit. They are
ideal for cleaning because they do not leave much of a lint residue
like most tissues. They also do not have any other compounds in the
tissue that may contaminate the sensors in the WP4C 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.
9.1 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 upward and then
sliding the lid back (away from the front of the case) and off.
3. Unscrew the two thumbscrews that secure the sensor block.
4. Unplug the cable with the 20-pin socket that attaches the block
to the main circuit board by releasing the two locking levers
that are on either side of the socket.
5. Carefully lift the block straight up from its mount. Turn the
block over to expose the chamber cavity as shown in the illus-
tration:
33
To Next Page
Loading...
