Bühler technologies GAS 222.35U Kurzanleitung Seite 8

GAS 222.35U
DANGER
Explosion hazard
Life and explosion risk may result from gas leakage due to im-
proper use.
a) Use the devices only as described in this manual.
b) Regard the process conditions.
c) Check tubes and hoses for leakage.
DANGER
Use in explosive areas
Flammable gasses and dust could ignite or explode. Avoid the
following hazard sources:
Sparking!
Protect the equipment from external blows.
Flame propagation!
If the process holds a risk of flame propagation, install a
flame arrestor.
Dust:
If possible, take the electrical components which must be
opened for repair to a dust-free room. If unable to do so, pre-
vent dust from entering the housing.
Ignition of dust layers!
When using the device in a dusty environment, routinely
clean dust from all components. Also remove layers of dust in
inaccessible areas.
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 com-
pressed air). The sparks this produces could ignite flammable,
explosive atmospheres.
Always clean plastic housing parts and decals with a damp
cloth!
DANGER
Adiabatic compression during gas blowback (explosion
hazard)!
Adiabatic compression may cause high gas temperatures and
must be checked by the user.
Gas blowback may result in high gas temperatures due to
adiabatic compression. This can cause flammable gases to ig-
nite spontaneously.
a) Blowback of explosive atmosphere / gases is prohibited.
b) Flammable atmosphere / gases (non-explosive) may only
be blown back with nitrogen (inert gas).
8 Bühler Technologies GmbH
DANGER
Explosion hazard due to high liquid temperatures
Hot steam and hot sample gas cause in a high probe surface
temperature. The highest fluid temperature is approximately
the maximum probe surface temperature.
a) Always ensure a safety clearance of at least 20 K between
the fluid temperature (steam, sample gas) and ignition
temperature of explosive atmosphere (by measuring and
monitoring the temperature).
b) Also be sure to stay well below the smouldering temper-
atures of dust.
c) Observe the relevant requirements in standards regard-
ing the max. permissible surface temperature and igni-
tion temperature of explosive atmosphere.
3 Transport and storage
Only transport the product inside the original packaging or a
suitable alternative.
The equipment must be protected from moisture and heat
when not in use. They must be stored in a covered, dry and
dust-free room at a temperature between -20 °C to 50 °C (-4 °F
to 122 °F).
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 atmospheres.
BX460059 ◦ 09/2021E