20 AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
Version with type of protection II 3G for measurement of
flammable gases ('Safety Concept') and non-flammable
gases
Intended application
Intended application
The gas analyzers are designed for continuous measurement of the concen-
tration of individual components in
• non-flammable gases and vapors,
• flammable gases and vapors of Group IIC and Temperature Class T4,
which can seldom and then only briefly form a potentially explosive at-
mosphere (zone 2).
Any other use is not as specified.
The specified use also includes taking note of this operating instruction.
Important safety note
According to EU Directive 2014/34/EU and the general requirements for
equipment installed in explosive atmospheres stated in IEC 60079-0, the
scope of the certification of our equipment is limited to atmospheric condi-
tions, unless specified otherwise in our certificates.
Atmospheric conditions are defined as follows:
• Temperature range −20 to +60 °C
• Pressure range p
abs
= 80 to 110 kPa (0.8 to 1.1 bar)
• Ambient air with normal oxygen content, typically 21 % v/v
If the atmospheric conditions are not met, the operator is obliged to ensure
the safe operation of our equipment outside the atmospheric conditions by
means of further measures (for example, assessment of the gas mixture)
and / or supplementary protection devices.
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