WP4C 9 CLEANING AND MAINTENANCE
of IPA or cleaning solution (the IPA or cleaning solution
will become contaminated).
(c) WASH–Clean all surface edges of the samples chamber in-
cluding the edge where the sample cup seals to the cham-
ber block. You may need to replace the Kimwipe if it
becomes too dirty during this process.
(d) RINSE–Repeat steps b and c using new Kimwipes with
deionized water.
(e) DRY–Repeat steps b and c using new, dry Kimwipes to
help remove any moisture remaining from the cleaning.
(f) Visually inspect the sample chamber for cleanliness. Clean
again if necessary.
Note: Do not reuse Kimwipes.
2. Cleaning the Mirror
Note: Wash hands with soap and water (to prevent oils from
contaminating the Kimwipe tissue and being transferred to the
mirror).
(a) Wrap a NEW Kimwipe around the end of the thin plas-
tic rod (spatula) and moisten it with isopropyl alcohol or
cleaning solution.
(b) WASH–Carefully clean the mirror with the moist Kimwipe.
(c) RINSE–Repeat steps b and c using new Kimwipes with
deionized water.
(d) DRY–Repeat steps b and c using new, dry Kimwipes to
help remove any moisture remaining from the cleaning.
(e) Visually inspect the mirror for cleanliness. Re-clean if
necessary. Note: Do not reuse Kimwipes.
3. Cleaning the Optical Sensor
You will probably clean the optical sensor while you are clean-
ing the mirror, since they face each other in a very small gap.
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