AO2020 CALDOS27
Overview
Advance Optima AO2000 Series is a line of modules used forprocess gas analysis.
The product line consists of the following modules:Analyzer Modules
Pneumatics Module
Electronics Module
l/O Modules and l/O Boards
Housing with Display and Control Unit
System Bus
The modules can be arranged in various ways to form single ormultiple analyzer systems.
An analyzer unit (see example 1 on page 5) usually consists of:
One analyzer module
the electronics module
the power supply
the housing with display and control unit
A multiple analyzer system (see example 2 on page 5) in itsmaximum stage of extension consists of:
Four analyzer modules handling up to six sample components
The pneumatics module
The electronics module
The required number of power supplies
The required number of housings
The electronics module, power supply and housing with displayand control unit are also collectively referred to as the “centralunit”.

Housing
The housing is available as a 19-inch (Model AO2020) or wall-mount (Model A02040) unit with lP20 or IP54 protection. P54 housing versions can be purged. The display and controlunit is located on the front panel of the housing when theelectronics module is installed.
System Bus
AO2020 CALDOS27 The gas analyzer’s functional units are interconnected via thesystem bus. The system bus structure is linear with a maximumlength of 350 meters. Only one electronics module with up tofive /O modules and three l/O boards should be connected to asystem bus structure.
Connection of Sample Gas Conditioning ModulesThe SCC-F sample gas feed unit and the SCC-C sample gascooler can be connected to the gas analyzer via the system busby means of an l/O board installed in the sample gas feed unit. Thus it is possible to display, AO2020 CALDOS27 monitor and control individualsample gas conditioning functions in the gas analyzer such ascooler temperature or condensate and flow status. For furtherinformation please refer to the“System Components andAccessories for Sample Gas Conditioning” data sheet.
Explosion Protected Versions in Category 2G
For information about the explosion protected versionsA02060-Uras14,-Caldos15,-Caldos17 and -Magnos106Analyzer Modules in Category 2G andA02040-CU Ex