Bühler technologies GAS 222.30 Notice De Montage page 9

GAS 222.30
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.
DANGER
Explosion hazard
When used in explosive areas
Flammable gasses and dust could ignite or explode.
Never operate the gas probe outside the specifications. Ex-
tracting 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 components.
The ignition temperature resp. smouldering temperature of
flammable dusts resp. dust layers present must be consider-
ably higher than the maximum surface temperature of the
device (observe applicable standards and statutory regula-
tions).
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.
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 com-
pressed 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 upstream filter (Optional)
The upstream filter, if necessary with matching extension,
must be screwed in. The probe is then attached to the mating
flange using the included seals and screws.
BX460060 ◦ 09/2021
4.4 Connecting the Gas Line
The sample gas line must be carefully and properly connected
using a suitable fitting.
This table provides an overview of the sample gas probe con-
nections:
Probe
GAS 222
Connecting DN65/PN6/
1) 2)
flange DN3"-150
Sample gas G3/4
inlet
Sample gas NPT 1/4
outlet
Blowback G3/8
connection
Test gas Tube Ø6
1)
connection mm
2)
Tube Ø1/4
Filling port
Condensate
Bypass
Control air
Tab. 1: Gas Probe Connections (Varies by Model)
1)
Varies by version.
2)
Only GAS 222.xx ANSI and GAS 222.xx AMEX
WARNING
Gas emanation
Sample gas can be harmful to the health!
Check the lines for leaks.
4.4.1 Blowback Connection
Without accessories installed for the blowback device, the
blowback connection comes with a sealed G3/8 screw-in con-
nection. If you require blowback, you will need to undo this
screw-in connection and ensure the blowback line is connec-
ted properly and tight.
DANGER
Toxic, corrosive gasses
Explosive or toxic gases can develop due to a leaking or open
blowback connection.
4.4.2 Connecting the calibrating gas line (optional)
Connecting the calibrating gas line requires a Ø6 mm or Ø1/4"
pipe fitting.
If the calibrating gas connection was ordered with check
valve, a Ø6 mm or Ø1/4" pipe can be connected directly to the
check valve.
Reservoir Ball valve Control
PAV01 pneumatic valve
drive 3/2-way
solenoid
valve
NPT 1/4
G1/2
NPT 1/4
G1/8 G1/4
NPT 1/4
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