Ametek 241CE II User Manual page 104

Before beginning, read the following Caution and Warnings:
Turning off the power deactivates the solenoid valve in the closed
position.
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.
Hazardous Locations
Before proceeding, test the area around the analyzer for explosive
gases and proceed only when the area is found to be safe.
Do not open the Electronics En closure, do not connect a serial cable
to the RS-232 serial port Communications Port, and do not power
up/down the analyzer or computer if there is an explosive gas atmo-
sphere present.
The Measuring Cell Assembly contains integral flame arrestors on the
bottom of the Cell. Do not replace these flame arrestors with standard
fittings.
Shut down main AC power to the analyzer before disassembling the
Measuring Cell Assembly or removing the entire Cooler Housing/
Heatsink/Measuring Cell Assemblies. Also, the joining surfaces of these
assemblies are flamepaths.
4-16 | 241CE II Hydrocarbon Dewpoint Analyzer PN 903-8797, Rev A