Instruction manual

17 - 5
NGA 2000 MLT Hardware
REPLACEMENT AND CLEANING OF PHOTOMETRIC COMPONENTS
Emerson Process Management GmbH & Co. OHG
Instruction Manual
90002929
07/2006
17.3.2 Cleaning
a) Windows
The shielding windows (on the filter cells, chopper housing and the analysis cell) may be cleaned
with a soft, fluff free cloth.
Use a highly volatile alcohol for the cleaning procedure.
To remove any lint and dust particles remaining, blow off the cleaned components with nitrogen
(N
2
).
b) non-divided analysis cells
The analysis cell may be cleaned with a soft, fluff free cloth.
Use a highly volatile alcohol for the cleaning procedure.
To remove any lint and dust particles remaining, blow off analysis cell with nitrogen (N
2
).
c) divided analysis cells
If deposits are visible in the analysis cell, these can be removed with suitable solvents e. g. acetone
or spirit. Then the analysis cell is to be flushed with an alcohol which evaporates easily and dried
by blowing nitrogen (N
2
).
Maxi. pressure in analysis cell 1.500 hPa !
CLEANING