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P2.x ATEX
4.1.1 Outdoor installation
The sample gas pumps were not specifically designed for outdoor setup. The operating and environmental conditions are cru-
cial for the required types of protection and any additional measures required, such as:
– adequate protection from the weather
– Adjusting the maintenance intervals (e.g. cleaning and replacing wear parts)
Use suitable measures and regular inspections to prevent damage to the equipment from e.g.:
– Corrosion
– Sunlight (temperature peaks and damage from
UV rays)
– Moisture from condensation (e.g. due to rapid temperature changes or downtimes)
– Icing
– Insects and microbes
– other animals, e.g. martens, etc.
Please remember that all technical operating parameters of the equipment must also be met with outdoor installation. Specific-
ally:
– Maximum or minimum operating temperatures
– Degree of protection
4.2 Installation
CAUTION
Damage to the device
Protect the device, especially the gas inlets and tubes, against dust, falling parts and ex-
ternal impact.
P2.2 ATEX/P2.72 ATEX
When installing the P2.2 ATEX/P2.72 ATEX on mounting plates, use the included mounting bracket and only the included rub-
ber/metal bumpers. Operation without rubber/metal bumpers is prohibited. These must also be used when installing the pump
on an existing substructure. For the hole pattern in the mounting bracket and the motor foot, please refer to the technical data
at the end of the operating and installation instructions.
P2.4 ATEX/P2.74 ATEX
When installing the P2.4 ATEX/P2.74 ATEX sample gas pump, please note the assembly drawing 42/025-Z02-02-2. Before begin-
ning the installation, ensure that the sample gas pump is complete. You will also require 6 x M6 bolts of suitable length and
nuts for installation.
The pump head on all pump types can only be aligned turned by 0° or 180°.
4.3 Special condition moist sample gas
Applications where the sample gas is still moist may result in condensate forming in line and the pump body. In these events
the pump head must be suspended (pump body facing down).
If the pump was not ordered this way, it can easily be converted on site.
Install the line between the gas output and condensate drain with a grade so the condensate can drain and does not collect in-
side the pump or the lines.
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Bühler Technologies GmbH
BE420002 ◦ 07/2024
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