Buhler GAS 222.20 DH, Assembly, Installation And Operation Instructions

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GAS 222.20 DH
4 Installation and connection
4.1 Installation site requirements
Sample gas probes are intended for flange mounting.
– Installation site and installation position are determined based on requirements specific to the application.
– If necessary, the connection piece should be slightly tilted toward the centre of the channel.
– The installation site should be protected from the weather.
– In addition, adequate and safe access for installation and future maintenance work should be provided. Particularly follow
the uninstalled size of the probe tube!
If the probe is transported to the installation site in pieces, it will first need to be assembled.
4.2 Installation
DANGER Danger to life and explosion during installation and maintenance
The unit must not be worked on (assembly, installation, maintenance) in explosive at-
mospheres.
DANGER Explosion hazard
When used in explosive areas
Flammable gasses and dust could ignite or explode.
Never operate the gas probe outside the specifications. Extracting gases or gas mixtures
which are also explosive in the absence of air is prohibited.
DANGER Explosion hazard due to ignition of dust
When using the device in a dusty environment, routinely clean dust from all compon-
ents.
The ignition temperature resp. smouldering temperature of flammable dusts resp. dust
layers present must be considerably higher than the maximum surface temperature of
the device (observe applicable standards and statutory regulations).
If possible, take the electrical components which must be opened for repair to a dust-
free room. If unable to do so, prevent dust from entering the housing.
DANGER Explosion hazard due to flame propagation
Severe injuries and damage to the system
If the process holds a risk of flame propagation, install a flame arrestor.
DANGER Dangerous electrostatic charge (explosion hazard)
Incendive electrostatic charges may occur when cleaning plastic housing parts and
decals (e.g. with a dry cloth or compressed air). The sparks this produces could ignite
flammable, explosive atmospheres.
Always clean plastic housing parts and decals
with a damp cloth !
4.3 Installing the sampling tube (optional)
The sampling tube, if necessary with the fitting extension, must be screwed in. The probe is then attached to the mating flange
using the included seal and nuts.
7 Bühler Technologies GmbH BE460045 ◦ 10/2019