P2.x ATEX
4 Installation and connection
Check the equipment for damage before installation. Among other things, this could be a damaged housing, supply cables, etc..
Never use equipment with obvious damage.
CAUTION
Use appropriate tools
According to DIN EN 1127-1, the operator is responsible to select and use appropriate
tools.
4.1 Requirements to the installation site
CAUTION
Equipment damage
Protect the equipment, particularly gas connections and gas lines, from dust, falling ob-
jects, as well as external blows.
Lightning
On principle, the operator must meet all applicable standards with respect to preventing
damage to the equipment due to lightning, which could result in equipment damage.
CAUTION
Avoid vibrations and resonances
The operator is responsible to mount the pump in a way that vibrations and resonance
do not cause premature failure resulting in creating an effective ignition source.
The sample gas pump must be assembled and connected as well as disassembled in a non-Ex zone with the unit cooled down.
Never block the vent, and the exhaust air, including from adjacent units, must not be immediately suctioned in.
When installing without Bühler mounting bracket, be sure the motor is far enough from the back panel (at least 40 mm).
The sample gas pumps are rated for ambient temperatures from -20 °C to +50 °C (-4 °F to 122 °F) as well as altitudes <= 1000 m.
They’re available in various styles and the specific technical data may vary. Therefore always note all device-specific data on the
pump and motor type plate and their specific limits - see Technical Data.
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Bühler Technologies GmbH
BE420002 ◦ 07/2022
