Instruction Manual
748441-D
May 2004
Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 2-1
Model CAT
100
SECTION 2
INSTALLATION
DANGER
.
POSSIBLE EXPLOSION HAZARD
Do not open while energized. Do not op-
erate without dome and covers secure. In-
stallation of this device must be made in
accordance with all applicable national
and/or local codes. See specific references
on installation drawing located in the rear
of this manual.
DANGER
.
ELECTRICAL SHOCK HAZARD
Installation and servicing of this device re-
quires access to components that may
present electrical shock and/or mechanical
hazards. Refer installation and servicing to
qualified service personnel.
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.
2-1 PROCESS AND CALIBRATION GAS CON-
NECTION
Besides sample gas, the CAT 100 requires
other gases for operation. In most cases, one
or more Calibration Standards must be pro-
vided. These should be cylinders of gas which
closely resemble the expected sample, both in
species and concentrations. These calibration
gases are normally introduced into the system
as an input to the Sample Conditioning Plate
Option or sample conditioning may be pro-
vided by others.
Each gas cylinder should be equipped with a
clean, hydrocarbon free two-stage pressure
regulator with indicating gauges of approxi-
mately 0 to 3000 psig (0 to 207 bar) for cylin-
der pressure and 0 to 100 psig (0 to 6.7 bar)
for delivery pressure. Pressure regulators
should have a metallic as opposed to elas-
tomeric diaphragm, and provide for ¼ inch
compression fitting outlet and should be LOX
clean.
NOTE
All connections specified in the Installa-
tion Drawing, in conjunction with the Ap-
plication Data Sheet, should be made.
For single channel and dual channel CAT 100
analyzers being plumbed in series, connection
1 is the gas inlet and connection 2 is the gas
outlet for both channels. Dual channel analy-
zers with parallel tubing use gas inlets and
outlets noted in Figure 2-1 (page 2-2).
When ONE optional auto calibration solenoid
valve block is installed, the sample gas is in-
troduced to connection 9 instead of connec-
tion 1. In this case, the outlet at connection 5
is used.
When parallel tubing and TWO auto calibra-
tion valve blocks are supplied, gas inlet 3 and
gas outlet 4 are used for the second channel.
Zero gas 1 and span gas 1 are used for chan-
nel 1 (valve block 1) while zero gas 2 and
span gas 2 are used for channel 2 (valve
block 2) (see Figure 2-1).
