Installation and Start-Up | 3-5
Installing the Mechanical Components
Install the analyzer in its designated location before installing the
Optical Bench in the Ex d Upper Enclosure.
Installing the Analyzer
The analyzer system comes mounted on a backpan. See Figure 3-1 (Euro-
pean style) for the backpan and mounting hole locations and dimensions,
plus necessary clearances on all sides that are required for service. See Ap-
pendix A for a North American style drawing, or see the Final “As-Built”
drawings, if ordered, in the analyzer Documentation Package.
Location and Environment
The Model 933S Analyzer is designed for indoor operation (Pollution
Degree 2). In all cases, the analyzer system must be installed indoors to
ensure it is shielded from harsh environmental elements. The entire ana-
lyzer system (and its backpan) can be mounted directly on a wall inside a
building, in a specially designed cabinet, or in a custom-built shelter.
Regardless of which installation method is used, be sure to install the
analyzer in a location that is as free as possible from vibrations.
The surrounding ambient temperature of the analyzer must be between
0 °C and 50 °C (32 °F and 122 °F). The minimum ambient temperature
around the analyzer and sample system should be at least 5 °C (9 °F)
above the maximum sample dew point temperature. If the analyzer sys-
tem is mounted within an AMETEK-designed shelter, these conditions are
taken into consideration in the design of shelter.
Install the analyzer at an accessible location as close as possible to the sam-
ple extraction point to minimize sample response time and, if the Sample
Line must be heated, minimize the heating requirements.
NOTE
!
CAUTION
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