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P2.x ATEX
2.2 General hazard warnings
This product has no dangerous ignition sources when observing regulations and operating parameters in these operating in-
structions. Installation into a complete system can pose new hazards the manufacturer of this sample gas pump has no control
over. If necessary, perform a risk assessment of the complete system this product will be installed into.
Observe the relevant national safety regulations for the installation site and the generally applicable state of the art when con-
figuring and building the complete system. These can be determined through applicable harmonised standards, e.g. EN
60079-14 among others. Additional national regulations pertaining to initial operation, operation, maintenance, repairs, and
disposal must be observed.
Avoid any exothermic reactions in your system, do not use materials with a catalytic effect in the conveyor lines. Dangerous rises
in temperature may otherwise occur. Sample gas pump materials in contact with media are specified in this operating manual
to facilitate the safety assessment.
Adiabatic compression is part of the physical operating principle of bellows pumps. Dangerous rises in temperature cannot be
ruled out when exceeding the operating parameters.
Avoid these dangerous conditions. If necessary, protect the entire system against flashback. Follow these notes and the applic-
able national regulations and prevent malfunctions to avoid personal injury and property damage.
The operator of the system must ensure:
– The equipment is installed by a professional familiar with the safety requirements and risks,
– Safety notes and operating instructions are available and observed,
– The permissible data and operating conditions are observed,
– Protective devices are used and the required maintenance is performed,
– The unit is disposed according to the law.
Maintenance, Repair
Please note during maintenance and repairs:
– Repairs to the unit must be performed by Bühler authorised personnel.
– Only perform conversion-, maintenance or installation work described in these operating and installation instructions.
– Always use genuine spare parts.
– Do not install damaged or defective spare part. If necessary, visually inspect prior to installation to determine any obvious
damage to the spare parts.
Always observe the applicable safety and operating regulations in the respective country of use when performing any type of
maintenance.
DANGER
Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to mains unintentionally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
DANGER
Danger of explosions, danger of poisoning from poisonous corrosive gases
During maintenance work, depending on the medium used, explosive and/or poisonous
corrosive gases could escape, and this could lead to a danger of explosion or could be
hazardous to health.
a) Inspect the leak tightness of your sampling system before putting the device into op-
eration.
b) Ensure that gases that are hazardous to health are discharged safely.
c) Turn off the gas supply before beginning any maintenance or repair work and flush
the gas lines with inert gas or air. Secure the gas supply so that it cannot be turned on
unintentionally.
d) Protect yourself during maintenance from poisonous / corrosive gases. Wear appro-
priate protective equipment.
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Bühler Technologies GmbH
BE420002 ◦ 07/2024
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