ABB Advance Optima AO2000 Series Continuous gas analyzers Models AO2020. AO2040
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Modular continuous gas
analyzers
One central unit and various analyzer modules
Common controls, common connection technology,
common system housing
Analyzer modules with different measurement principles
for all process and emissions monitoring applications
Multiple analyzer systems with up to four analyzer
modules handling a total of six sample components
Extensive automatic calibration with air or integral
calibration cells eliminating the need for test gas cylinders
“Safety Concept” for measuring flammable gases in
Zone 2 and for measuring corrosive and toxic gases
Simultaneous digital and analog display of measured
values on a large graphics panel
Menu-driven operator interface
Clear-text status messages
Multiple interfaces for communication with host and
associated systems
Flexibly configurable analog and digital inputs and
outputs on various input/output modules
Optional integrated pneumatics module
Housing design for 19-inch rack mounting
(Model AO2020) or wall mounting (Model AO2040)
Modular design for ease of service
Self-monitoring function indicates when maintenance is
required
Overview
Advance Optima AO2000 Series is a line of modules used for
continuous process gas analysis.
The product line consists of the following modules:
Analyzer modules
Pneumatics module
Electronics module with system controller and I/O modules
Housing with display and control unit
System bus
The modules can be arranged in various ways to form single or
multiple analyzer systems.
The electronics module, power supply and housing with display
and control unit are also collectively referred to as the “central
unit”.
Analyzer modules
Analyzer modules:
Uras26
Limas21 UV
Limas21 HW
Limas11 IR
Magnos206
Magnos27
ZO23
Caldos25
Caldos27
Fidas24
Infrared analyzer module
Process photometer analyzer module
Process photometer analyzer module
Process photometer analyzer module
Oxygen analyzer module
Oxygen analyzer module
Trace oxygen analyzer module
Thermal conductivity analyzer module
Thermal conductivity analyzer module
FID analyzer module
Fidas24 NMHC FID analyzer module
LS25
Laser analyzer module
Each analyzer module consists of the sensor and associated
electronics having its own processor. The analyzer modules are
linked to the system controller via the system bus. The laser
analyzer module is linked to the central unit via Ethernet.
The analyzer modules are supplied with 24-VDC from an integral
power supply or an external unit.
The electrochemical oxygen sensor is available as an option in
combination with an analyzer module.
Pneumatics module
The pneumatics module contains the following elements when
fully equipped:
One or three solenoids to control test gas supply
One or two disposable elements for fine filtration
One gas supply pump with coarse filter and capillary
One or two flow monitors
The pneumatics module is always associated with an analyzer
module and installed in the same housing as the analyzer
module.
Electronics module, interfaces
The electronics module incorporates the system controller with
the I/O modules.
The system controller carries out the following functions:
Processing and communicating the measured values supplied
by the analyzer module sensor electronics
Compensating measured values, e.g. cross sensitivity
correction
Controlling system functions, e.g. calibration
Display and control functions
Controlling associated systems, e.g. gas supply
Communicating with external systems
The system controller communicates with the other functional
units of the gas analyzer (e.g. the analyzer modules) via the
system bus.
Interfaces for controlling associated systems and for communi
cating with external systems are located on the system controller
(Ethernet 10/100/1000BASE-T interface) and on the I/O modules.
The I/O modules are attached and directly connected to the
system controller board. There are six types of I/O modules:
Profibus modules have one RS485 and one MBP interface.
Modbus modules have one RS485 and one RS232 interface.
Digital I/O modules have four digital inputs and four digital
outputs.
2-way analog output modules have two analog outputs.
4-way analog output modules have four analog outputs.
4-way analog input modules have four analog inputs.
Examples of I/O module applications include:
Output of measured values
Output of status and alarm signals
Calibration control
Control of external solenoid valves and pumps
Measurement range switching and feedback
Feed of current or status signals from external analyzers
Feed of status signals from peripherals
Housing
The housing is available as a 19-inch (model AO2020) or wall
mount (model AO2040) unit with IP20 or IP54 protection.
IP54 housing versions can be purged. The display and control
unit is located on the front panel of the housing when the
electronics module is installed.
System bus
The gas analyzer’s functional units are interconnected via the
system bus. The system bus structure is linear with a maximum
length of 350 meters. Only one electronics module with up to
five I/O modules should be connected to a system bus structure.
Connection of sample gas conditioning modules
The SCC-F sample gas feed unit and the SCC-C sample gas
cooler can be connected to the gas analyzer via the system bus
by means of an I/O board installed in the sample gas feed unit.
Thus it is possible to display, monitor and control individual
sample gas conditioning functions in the gas analyzer such as
cooler temperature or condensate and flow status. For further
information please refer to the “System components and
accessories for sample gas conditioning” data sheet.