Fuji Electric ZKJ Series - Page 86

7 - 4
7.3.2 Cleaning method for sample cell (block cell)
This section is strictly factory adjusted. Handle it with utmost attention.
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(1) Turn off the power switch, stop the
sample gas, and allow the zero gas to
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cell interior.
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top cover and remove it.
(2) Remove the internal gas inlet tube.
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Note) The distribution cell, block cell
and detector are fastened by the
same bolts.
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remove it from the cell.
(See the structure of sample cell
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(5) For cleaning the infrared transmission
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eliminate coarse dust by soft brush or
the like and then wipe them by soft rag.
The window is easy to get scratched.
Pay utmost attention so as not to dam-
age it.
(6) After the end of sample cell cleaning,
mount the cell in place and proceed to
running.
After cleaning sample cell, be sure to
perform optical zero adjustment (see
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ence compensation adjustment (see
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Gas inlet tube set cap nut
Detector set bolt
Infrared transmission window
Inner O ring
Outer O ring
O ring holder
Window fixture
If the window or the cell interior is very dirty, use a soft cloth moistened with absolute alcohol.
A slightly corroded infrared transmission window or sample cell can be remedied by gently rubbing
with chromium oxide powder on cleaning cloth but an excessively corroded one must be replaced.
When cleaning, do not exert an excessive stress.
CAUTION
Top cover