Siemens Set CEM CERT, Operating Instructions Manual, Page: 12 / 128

General information
2.2 Safety information
Set CEM CERT
10
Operating Instructions, 06/2021, A5E34491309-12
2.2 Safety information
DANGER
Explosions due to explosive atmosphere
Explosions in an explosive atmosphere can result in death or injuries.
• Never operate this system in an explosive atmosphere
WARNING
Toxic and/or corrosive gases
When measuring toxic or corrosive gases, leaks in the gas path may cause harmful
sample gas concentrations to accumulate in the system or in individual analyzers.
Health risks up to and including danger to life exist in the case of the following sample
gas components:
• Carbon monoxide (CO):
Colorless, odorless and tasteless, highly flammable, toxic; can result in death
depending on concentration and duration of exposure.
• Carbon dioxide (CO
2
):
Colorless, odorless and tasteless, heavier than air, displaces breathing air and can
thereby result in death by asphyxiation.
• Sulfur dioxide (SO
2
):
Colorless, pungent-smelling and sour-tasting, toxic, irritates mucous membranes.
• Nitric oxide (NO):
Colorless, oxidizing, toxic, causes chemical burns to eyes and skin.
• Nitrogen dioxide (NO
2
):
Colorless, toxic, causes chemical burns to eyes and skin.
To prevent a poisoning hazard or damage to analyzer parts, the relevant 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.
WARNING
Harmful substances in the condensate
The condensate at the sample gas cooler or condensation trap can be corrosive,
depending on the composition of the sample gas (e.g.: through SO
2
, NO, H
2
S, HCl, etc.).
When you dip litmus paper into the condensate it will turn red.
• Wear protective clothing, protective goggles and protective gloves when handling the
condensate!
• Prior to its disposal, dilute the condensate with tap water until it turns neutral and
the litmus paper does not change color. Alternatively, you can also neutralize the
condensate with a weak sodium carbonate solution (Na
2
CO
3
).