AO2000 CONTINUOUS GAS ANALYZERS  |  OI/AO2000-EN REV. B  25
 
 
 
Technical data 
Electrical specifications 
Power supply  System housing with central unit and analyzer module: 100 to 240 V AC   
(− 15 %, + 10 %), 2,2 to 0,7 A, 47 to 63 Hz;   
System housing with 2 analyzer modules: 24 V DC, max. 95 W per module, 
Functional extra-low voltage "PELV" 
Signal inputs and outputs  Functional extra-low voltage "PELV" 
System bus, computer in-
terfaces 
Functional extra-low voltage "PELV" 
    For further electrical data, see "Advance Optima AO2000 Series" data sheet. 
System housing 
Housing protection type  IP54 as per EN 60529 
Ambient temperature 
    during operation with analyzer module installed in a system housing   
    without electronics module  with electronics module 
Limas11 IR  +5 to +45 °C  +5 to +45 °C, +5 to +40 °C with I/O modules 
Uras26  +5 to +45 °C  +5 to +40 °C 
Caldos25  +5 to +45 °C  +5 to +45 °C 
Caldos27  +5 to +50 °C  +5 to +45 °C 
Magnos206  +5 to +50 °C  +5 to +45 °C 
Sample gas path ("containment system") 
Sample gas  Flammable and non-flammable gases and vapors under atmospheric condi-
tions (p
abs
 ≤ 1.1 bar, oxygen content ≤ 21 vol.%); Temperature Class T4, for 
Limas11 IR: T6; not potentially explosive under normal conditions, if poten-
tially explosive in the event of a fault, then only seldom and briefly (in ac-
cordance with Zone 2); (only for Limas11 IR:) occasionally potentially explosive 
under normal conditions (in accordance with Zone 1), Temperature Class T4. 
Mixtures of flammable gases and vapors and oxygen that are not explosive 
under normal conditions or in the event of a fault. As a rule, these can be 
achieved if the oxygen content is reliably limited to max. 2 vol.% or the 
flammable component is reliably limited to max. 50 % LEL. 
Flammable gases and vapors that are explosive under the conditions en-
countered during analysis, even when oxygen is excluded, may be present in 
the mixture to be analyzed only in concentrations that are considered 
non-critical according to safety regulations.
 
Flow  max. 40 l/h 
Pressure  At sample gas inlet: max. positive pressure p
e
 ≤ 3 hPa,   
at sample gas outlet: atmospheric 
Turning off the sample gas  by user when shutting down the analyzer and in case of an alarm (pressur-
ized enclosure failure) additional special conditions for operation with 
flammable sample gas (see page 27)