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P2.x ATEX
DANGER
Explosion hazard
Life and explosion risk may result from gas leakage due to improper use.
a) Use the devices only as described in this manual.
b) Regard the process conditions.
c) Check tubes and hoses for leakage.
DANGER
Adiabatic compression (explosion hazard)!
In case of adiabatic compression, high gas temperatures may occur. The operator is re-
sponsible to consider this situation.
Make sure to obey the allowed technical specifications and ambient conditions (see data
sheet), take special attention to the media temperature with respect to temperature
class T3 or T4. These vary in addition to gas composition and ambient conditions. Where
necessary, the operator must install temperature sensors for monitoring and must auto-
matically shut down the sample gas pump should the temperature exceed the limits.
DANGER
DANGER - Explosion danger in case of high temperatures
Temperature of the device depends on the media temperatures. Correlation between
media temperature and temperature classes is given in the data sheets.
Observe maximum temperature classes T3 or T4 for the pumps and the allowed ambient
temperatures and media temperatures.
DANGER
Diffusing pumped media
Explosion hazard! Formation of explosive atmosphere due to escaping flammable gases.
When operating the sample gas pumps with media that tend to diffuse strongly, such as
hydrogen (H
ently technically leak-proof due to their design. To ensure safe operation, the official reg-
ulations for installation and operation must be observed. In addition to regular leakage
checks, suitable technical measures such as gas monitoring devices, technical ventila-
tion, etc. must be provided depending on the installation situation.
DANGER
Danger of explosion due to exothermic reactions
Avoid catalytic materials in the conveyor pipelines and other materials, e.g. male stud
couplers, connecting to the sample gas pump.
Depending on the particular medium conveyed (e.g. ethylene oxide), a polymerisation of
the medium may occur. Heat build-ups are possible and constitute an ignition source. If
necessary, for clarification consult a technical department that possesses sufficient
chemical expertise.
CAUTION
Hot surface
Burning hazard
According to the product type and operation conditions, the temperature of the housing
may exceed 50 °C during operation.
Depending on the conditions at the installation site it may be necessary to provide these
areas with appropriate warning signs.
CAUTION
Tipping hazard
Equipment damage.
Secure the device against tipping, sliding and falling.
BE420002 ◦ 07/2024
) in high concentrations, it is essential to note that these are not perman-
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