Section 10
Model 601/601P/602/602P/603 NDIR Analyzer
California Analytical Model 600_NDIR_Series_v10.0 CE
Operators Manual
Page 67 of 86
Alcohol or an alcohol-based glass cleaner is a suitable cleaning solution. A soft cloth
or tissue that will not deposit lint should be used to clean the liner & windows.
18) The pipe cells contain a reflective metal foil liner (not shown in Figure 10-3) to
enhance the light energy through put in the cell. Normally it is not necessary to
remove the liner for cleaning; however, the liner should be removed if the cell is
subjected to grossly excessive moisture. If necessary, clean both sides of the
liner and the inside of the pipe cell. If the liner has been subjected to a corrosive
substance, it should be replaced. In either case, ensure that the small gas holes
in the liner are aligned with the gas fittings at both ends of the pipe cell before
reassembling the windows.
19) The pipe cell can be re-assembled and installed by placing it in its supports and
securing with its retaining brackets.
Note: Before tightening the retaining brackets, be certain that a gap of approximately
0.5-1.0 mm exists between the pipe cell and the pipe cell detector.
20) Reinstall the infrared source unit, block cell and detector sub-assembly by
performing steps e, f, g, h, and I in reverse, being sure to leave a slight gap of
approximately 0.5-1.0 mm between the back of the block cell and the front pipe-
cell window.
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