Ametek 241CE II User Manual page 106

4-18 | 241CE II Hydrocarbon Dewpoint Analyzer
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If the Measuring Cell Assembly cannot be cleaned in place, remove the
Measuring Cell Assembly (including the Cooler Housing/Heatsink As-
sembly) from the Electronics Enclosure.
To do this, first disconnect the Purge Air Connection from the Cooler
Housing.
Next, remove the four (4) M6 x 20 screws that secure the Cooler Hous-
ing to the Electronics Enclosure. Before removing the fourth screw, use
one hand to secure the Measuring Cell/Heatsink Assembly against the
Electronics Enclosure. Two (2) permanently mounted alignment pins on
the Electronics Enclosure will help prevent the Measuring Cell/Heatsink
Assembly from falling when the last screw is removed.
With both hands, pull the Measuring Cell/Heatsink Assembly directly away
from the Electronics Enclosure. This action will disengage the electrical
connections and the alignment pins.
The Measuring Cell/Heatsink Assembly is heavy. Use caution when
removing it.
Move the Measuring Cell/Heatsink Assembly to a work bench or a con-
venient work area.
Use a soft pad (e.g., rubber, foam, or thick cloth) between the Measur-
ing Cell/Heatsink Assembly and the work bench to avoid damaging the
Heatsink fins, Mounting Sleeve, or the Cooler Housing-to-Seal (on the
Electronics Enclosure) mounting surfaces.
The Cooler Housing-to-Seal (on the Electronics Enclosure) and Heat-
sink Mounting Sleeve are flamepath areas. Take special care to avoid
scratching, indenting, or otherwise damaging these joining surfaces.
If unsure about the integrity of these flamepaths see "Examining and
Caring For the Flamepaths" in this chapter.
PN 903-8797, Rev A