MSA PrimaX IR Manuel D'utilisation page 35

MSA
Fig. 19 Light path obscuration
WARNING
The sensor will not respond to the presence of gas in cleaning mode.
Ensure that the environment is free of combustible gases before starting
the cleaning procedure.
- The analog current output will be set to the the Cleaning Mode value
[ chapter 4.1] during this time.
- If monitoring the HART signal, the Cleaning Status bit will be set.
Although both windows are made of a highly durable material that is not easily
scratched, avoid excessive pressure when cleaning them. Clean, cotton tipped ap-
plicators are recommended to remove material collected on the windows.
(3) Use a dry applicator or one moistened with distilled water to wipe the window
and remove dust.
(4) Use an additional clean, dry applicator to remove any residual water.
(5) Use an applicator moistened with isopropyl alcohol to remove heavy deposits
of solids, liquids or oil films. Clean the window again with a second applicator
moistened with distilled water; then, dry the window with a final applicator.
(6) Avoid using excessive amounts of water or alcohol in the cleaning procedure,
and inspect the window to ensure that the entire surface is clean.
US
PrimaX IR
Maintenance
35