Instruction manual

Instruction Manual
760006-A
September 2001
1-10 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA 2000 Platform
Help screens contain comprehensive, context-
sensitive information about all functions. Press
the softkey labeled INFO once and receive data
concerning the current screen. Press INFO
twice and receive information about the overall
system.
Each menu screen has at least one help screen.
The user can move directly from one help
screen to another through an interrelated struc-
ture of functional titles.
1-9 MULTIPLE MODULE COMPONENTS AND
SYSTEM INTEGRATION
The Rosemount Analytical NGA 2000 architec-
ture provides significant system integration ca-
pabilities.
The compact 5.25" height and component
modularity allow for space efficient mounting,
thus decreasing the required panel or rack
space required by conventional Analyzers. The
Analyzer modules may be mounted virtually
anywhere inside a panel; they can be rack
mounted, floor mounted, installed inside the
Platform, or even externally located.
Since a single Platform can accommodate up to
ten Analyzer modules and up to five I/O Mod-
ules, the total number of "Nodes" allowed in any
one Platform group is fifteen. This combination
of Nodes may consist of any number of Ana-
lyzer modules and I/O Modules which total fif-
teen or less. Should additional I/O Modules be
required, these may be housed in an ancillary
Analyzer enclosure. Additionally, some Ana-
lyzer modules, such as the MCFID (Multi Com-
ponent Flame Ionization Detector), or MLT
(Multi Method Multi Component) Analyzer mod-
ules, actually provide discrete analysis of more
than a single component and thus are consid-
ered, by the Platform, to be more than a single
Analyzer. Once a "Node Group" has been con-
figured it may be networked with additional
Node Groups by means of a Router Assembly
(see Figure 1-9) which provides a discrete ad-
dress for that Node Group and isolates it from
other Node Groups.
Individual Analyzer modules require 24 VDC
power. As shown in Figure 1-8, this power may
be provided by individual power supplies lo-
cated in the Platform or by the 30 A Bulk Power
Supply which can provide up to 30 amps of 24
VDC power. The 30 A Bulk Power Supply can
provide power for up to 10 NGA 2000 compo-
nents.
Table 1-1 may be used to calculate the total
number of Analyzer modules and I/O Modules
which may be supported by a single Platform
(Node count ≤ 15), and the total power require-
ments for any single Node Group (30 A Bulk
Power Supply ≤ 30 Amps).