Instruction Manual
748441-D
April 2002
2-6 Installation
Rosemount Analytical Inc. A Division of Emerson Process Management
Model CAT100
2-2 INSTALLATION
CAUTION
.
Do not operate or service this instrument
before reading and understanding this in-
struction manual and receiving appropri-
ate training.
WARNING
ELECTRICAL SHOCK HAZARD
POSSIBLE EXPLOSION HAZARD
Do not open while energized. Do not op-
erate without dome and covers secure. In-
stallation requires access to live parts
which can cause death or serious injury.
CAUTION.
HIGH PRESSURE GAS CYLINDERS
This unit requires periodic calibration with
a known standard gas. It also may utilizes
a pressurized carrier gas, such as helium,
hydrogen, or nitrogen. See General Pre-
cautions for Handling and Storing High
Pressure Gas Cylinders, page P-5.
Refer to the installation drawing supplied with
the application data package.
a. Location
The CAT 100 is designed to be installed
in unsheltered environmental locations. It
is recommended that the analyzer be lo-
cated out of direct sunlight to the extent
possible.
The CAT 100 should be installed as near
as possible to the sample point, in order
to avoid low response time caused by
long sample gas lines.
b. Limitations
See Specification, Section 1-4 (page 1-
11).
c. Gas
Lines
For external gas lines, the use of all new
tubing throughout is strongly recom-
mended. The preferred type is new, re-
frigeration grade copper tubing, sealed at
the ends. Generally, stainless steel tubing
is less desirable as it contains hydrocar-
bon contaminants introduced through
cleaning. Pre-cleaned and rinsed stain-
less steel tubing is available from various
supply houses, and is recommended if
stainless steel is desired.
d. Services
All input power, AC or DC as well as input
and output digital and analog signals con-
nect through the Safety Junction Box lo-
cated above the CAT 100 dome.
Power Cable
AC Operation: 16 gauge, minimum.
DC Operation: 12 gauge, minimum.
e. Mounting
Options
The CAT 100 can be mounted to either 4-
½ or 6-¼ inch diameter pipe stands. Al-
ternately, the analyzer can be wall or floor
mounted.
Although the CAT 100 is enclosed in an
explosion proof and environmentally
sealed enclosure (NEMA 4X, IP 55), it
should be protected from direct sunlight.
In areas subjected to harsh winter cli-
mates, protection should be provided from
rain and snow. A corrugated awning or
other suitable means can be provided to
meet these conditions.
See drawing 660210 located in the rear of
this manual for typical pipe mounting
method. Note that the mounting stand is
an option.
f. Vent
Lines
Connect all vent lines (these are specified
on the Application Data Sheet) to an ap-
