9 CLEANING AND MAINTENANCE WP4C
Clean it in the same manner as described above for the mirror.
4. Cleaning the Thermopile
(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–Swipe the moistened Kimwipe across thermopile.
(A single swipe is usually sufficient to remove contami-
nants.)
(c) RINSE–Repeat steps a-b using new Kimwipes moistened
with deionized water instead of cleaning solution.
(d) DRY–Repeat steps a-b but use a new, dry Kimwipe to
help remove any moisture remaining from the cleaning.
(e) Visually inspect the thermopile for cleanliness. This sen-
sor must be free of all dirt and lint. Re-clean if necessary.
5. Inside Case
(a) Clean the sample drawer and drawer base as described
above for the thermopile. Remove any debris that may
have collected inside the case.
(b) Check once more to make sure there is no contamination
of the sample chamber cavity.
(c) Replace the block, and insert the ribbon cable socket into
to the 20-pin plug on the block. Lock it in place with the
locking levers.
(d) Screw the thumb-screws on the block back in until they
are hand-tight.
(e) Replace the case lid and secure the lid screw.
6. Connect the WP4C power cord.
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