Instruction Manual
748441-D
May 2004
2-2 Installation
Rosemount Analytical Inc. A Division of Emerson Process Management
Model CAT
100
An external flow meter may be used (if no in-
ternal is available) to adjust the flow rate. In
hazardous areas this must be done in accor-
dance with the legislation. The flow must be
adjusted so that calibration gases and sample
gas have the same rate. The auto calibration
solenoid valve option is only available with a
two-channel analyzer with series connection.
An example of a typical gas connection ar-
rangement for a single channel or dual chan-
nel series analyzer is show in Figure 2-2
(page 2-3).
Sample pump and solenoid value options are
available with parallel channels depending on
space only. For parallel channels, an external
optional sample handling plate as shown in
Figure 2-3 (page 2-4) may be required to pro-
vide pumping, valving and throttling capabili-
ties as necessitated by the application.
Single or dual channel (Ch) in series:
1 – Gas Inlet (Ch1)
2 – Gas Outlet (Ch1)
Dual channel in parallel:
1 – Gas Inlet (Ch1)
2 – Gas Outlet (Ch1)
3 – Gas Inlet (Ch2)
4 – Gas Outlet (Ch2)
Single or dual channel in series including one auto calibration valve block:
5 – Outlet (Span/Zero/Sample)*
6 – Span Gas 1 Inlet
7 – Span Gas 2 Inlet
8 – Zero Gas Inlet
9 – Sample Gas Inlet
Dual channel in parallel including two auto calibration valve blocks:
1 – Gas Inlet (Ch1)
2 – Gas Outlet (Ch1)
3 – Gas Inlet (Ch2)
4 – Gas Outlet (Ch2)
6 – Span Gas 1 Inlet
7 – Span Gas 2 Inlet
8 – Zero Gas 1 Inlet
10 – Zero Gas 2 Inlet
Option Purge of the CAT housing:
11 – Purge Gas Inlet
* Standard: Outlet = Gas outlet ; Valve block outlet is connected to internal BINOS gas inlet; Option: Valve block
outlet maybe used as outlet for external sample handling (special solution: consult factory)
Figure 2-1. Gas Connections
5
6
7
8
9
10
11
1
2
3
4
Flow Meter*
(option)
Bottom View
