Siemens ULTRAMAT 23 Series Equipment Manual page 14

Safety instructions
2.1 General
Improper device modifications
Danger to personnel, system and environment can result from modifications to the device,
particularly in hazardous areas.
• Only carry out modifications that are described in the instructions for the device. Failure to
Toxic and/or corrosive gases
When measuring toxic or corrosive gases, it could occur that sample gas accumulates in the
analyzer because of leaks in the gas path.
To prevent the danger of poisoning or damage to parts of the analyzer, the analyzer or the
system must be purged with inert gas (e.g. nitrogen). The gas displaced by purging must be
collected using appropriate equipment and disposed of environmentally-friendly via an
exhaust line.
Risk of explosion due to improper use
A device in the standard version must never be used in hazardous areas.
Explosive gas mixtures (e.g. flammable gases together with air or oxygen in a potentially
explosive ratio) must not be measured with this analyzer.
If the sample gas could contain flammable components above the lower explosion limit (LEL),
we recommend that you only use analyzers with piped gas paths.
Wetted parts unsuitable for the process medium
Danger of injury or damage to device.
Hot, toxic and aggressive process media may be released if the media is not suitable for wetted
parts of the analyzer.
• Ensure that the material of the device parts wetted by the process medium is suitable for the
14
WARNING
observe this requirement cancels the manufacturer's warranty and the product approvals.
WARNING
WARNING
WARNING
medium. Read the information in the technical specifications of the respective manual!
Equipment Manual, 04/2022, A5E37100388-012
ULTRAMAT 23