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Unrivaled Flexibility: Configuring the AO2000 Modular Gas Analysis System
Source: | Author:kongjiang | Published time: 2026-10-16 | 13 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
Unrivaled Flexibility: Configuring the AO2000 Modular Gas Analysis System
Modular analyzer product line
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 • 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. 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.
• Limas11 • Magnos206 • Magnos27 • ZO23 • Caldos25 • Caldos27 • Fidas24 • MultiFID14 Infrared 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 FID analyzer module • MultiFID14 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 communicating 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 various types of I/O modules:
• 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. • Digital I/O modules have four digital inputs and four digital outputs. • Modbus modules have one RS485 and one RS232 interface. • Profibus modules have one RS485 and one MBP interface (not intrinsically safe).
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.
Configuration of analyzer units and multiple analyzer systems
This data sheet contains specifications for all modules and components in the Advance Optima AO2000 Series modular product line.
This data sheet was not intended to be used for configuring an analyzer unit or a multiple analyzer system. For a quotation, please contact your ABB Analytical representative who can also provide advice and support.
Example 1 shows the modules and components that normally make up an analyzer unit as well as the possibilities for configuring an analyzer unit.
The modular product line allows modules and components to be formed into an analyzer unit (see example 1) or into multiple analyzer systems (see example 2).
Infrared analyzer module Uras26
Measurement principle
Non-dispersive infrared absorption in the λ = 2.5 to 8 μm wavelength range
Photometer to measure from 1 to 4 components with 1 or 2 beam paths and 1 or 2 receivers in each beam path
Sample components and measurement ranges
The Uras26 analyzer module has one physical measurement range per sample component. As an option, smaller measurement ranges can be electronically derived from the physical measurement range. The smallest range is measurement range 1
Infrared analyzer module Uras26
Dynamic response
Warm-up time Approx. 30 minutes without thermostat; approx. 2 hours with thermostat 90% response time T90 = 2.5 sec for measurement cell length = 200 mm and sample gas flow = 60 l/h without signal damping (low pass filter). The low-pass time constant is adjustable from 0 to 60 sec.
Calibration: Zero-point calibration with inert gas, e.g., nitrogen, or with ambient air that is free of the sample component. End-point calibration: With gas-filled calibration cells (optional) or with test gas mixtures. It is recommended to verify the calibration cell set values once a year. During calibration of a multi-component analyzer, possible cross-sensitivity and/or carrier gas corrections by internal or external measurement components are switched off. Therefore, corrected measurement components should be calibrated only using a test gas consisting of the measurement component and an inert gas like nitrogen.
Materials in contact with the sample medium
Analyzer (sample cells) Tubing: Aluminum or gold-plated aluminum. Window: CaF2 , option: BaF2 . Connectors: Rust- and acid-resistant steel 1.4571 (SAE 316Ti). Gas lines and connectors: FPM hoses and PTFE tubing with stainless steel connectors. Option: Rust- and acid-resistant steel tubes 1.4571 (SAE 316Ti).
Process photometer analyzer module Limas11 HW
Measurement principle and application: Limas11 HW is a multi-component analyzer for simultaneous measurement of nitrogen compounds in wet, sulfur-free flue gas without a converter. Measurement principle: Photometer to measure from 1 to 4 components such as NO, NO2, and NH3. Wavelength comparison in the ultraviolet spectrum range λ = 200 to 600 nm for sample components NO2 and NH3 . The UV-RAS method (ultraviolet resonant absorption spectroscopy) is used to make the analyzer selective to the sample component NO. Applications: Exhaust gas measurement for the development of combustion engines and methods for exhaust gas after-treatment, in particular for pure gas measurement after catalyst in – Four-stroke gasoline and diesel engines, – Catalysts for nitrogen oxide reduction. Process measurement for flue gas scrubbing systems in gas turbines and gas-fired burners, in particular for monitoring, controlling, and optimizing DeNOx SCR processes.
Oxygen analyzer module Magnos206
Measurement principle: Paramagnetic behavior of oxygen. Magnetomechanical analyzer; short 90% response time. Sample component and measurement ranges: Sample component: Oxygen (O2 ). Smallest measurement range: 0 to 0.5 vol.% O2. Measurement range quantity and limits: 4 measurement ranges. Measurement ranges are freely adjustable; they are factory set to 0 to 10/15/25/100 vol.% O2 or per order. Largest measurement range: 0 to 100 vol.% O2. Measurement ranges within ignition limits cannot be provided. Measurement ranges with suppressed zero-point Max. measurement range suppression 1:100, e.g. 99 to 100 vol.% O2 . Highly suppressed measurement ranges (≥95 to 100 vol.% O2 ) and initial measurement ranges in the same analyzer should be avoided. Pressure correction by means of a pressure sensor is required.
Oxygen analyzer module Magnos27
Measurement principle: Paramagnetic behavior of oxygen. Heavy-duty thermomagnetic analyzer. Sample component and measurement ranges: Sample component: Oxygen (O2 ) in flue gas or in nitrogen. Smallest measurement range: 0 to 3 vol.% O2. Measurement range quantity: 1 to 4 measurement ranges. Ranges are factory-set per customer order. Largest measurement range: 0 to 100 vol.% O2. Measurement ranges within ignition limits cannot be provided.
Trace oxygen analyzer module ZO23
Measurement principle: Potentiometric measurement; zirconium dioxide cell for determination of the oxygen concentration in accordance with Nernst’s equation; reference gas: ambient air. The analyzer module is used for the continuous measurement of oxygen in pure gases (N2, CO2, Ar). The measuring cell is catalytically inactivated to the extent that flammable carrier components in stoichiometric concentrations only negligibly reduce the oxygen value. Sample component and measurement ranges Sample component Oxygen (O2 ) Measurement range quantity and limits 4 measurement ranges Measurement ranges are freely adjustable within the 0 to 1 ppm to 0 to 250,000 ppm O2 range; they are factory-set to 0 to 1/10/100/1000 ppm O2. The following measurement data refer to a measurement span of 100 ppm O2 with a regulated flow rate of 8 ± 0.2 l/h.