Bühler technologies GAS 222.21 Ex1 Notice De Montage page 15

GAS 222.21 Ex1
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.
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.
4.4 Installing the downstream filter
NOTICE
The downstream filter and the O-ring for the handle must be
inserted prior to first startup.
Operating without downstream filter prohibited!
O-ring handle
4.5 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.
4.6 Insulation
On heated probes completely insulate any exposed flange
areas and, if applicable, the connection piece to absolutely
prevent thermal bridges. The insulating material must meet
the application requirements and be weatherproof.
BX460047 ◦ 03/2021
Attach an O-ring suitable
for the expected ambient
temperature (see "Spare
Parts and Accessories").
Attach the downstream fil-
ter to the handle. Then
carefully insert the handle
with filter in the gas probe
and turn 90° to secure.
Verify the handle is seated
correctly. When seated cor-
rectly it locks onto the filter
housing.
4.7 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 Reservoir
GAS 222 PAV01
Connect- DN65/
ing flange PN6/
1)
DN3"-150
Sample G3/4
gas inlet
Sample NPT 1/4
gas outlet
Blowback G3/8
connec-
tion
Test gas Tube Ø6
connec- mm
1)
tion Tube Ø1/4
Filling NPT 1/4
port
Condens- G1/2
ate
Bypass NPT 1/4
Control
air
Tab. 1: Gas Probe Connections (Varies by Model)
1)
Varies by version.
Please note the following items when connecting the sample
gas line (NPT 1/4") on heated probes to prevent thermal
bridges:
• Choose the shortest possible screw connection.
• Shorten the connection pipe for the sample gas line as
much as possible. To do so, remove the insulation around
the sample gas line. This is done by loosening the fixing
bolts.
CAUTION
Fragile
The insulation is fragile. Handle with care, do not drop.
After connecting the sample gas line it must be braced and se-
cured with the clamp.
Long sample gas lines may require additional support clamps
along the way to the analysis system! Once all lines have been
connected and checked for leaks, carefully reinstall and secure
the insulation.
WARNING
Gas emanation
Sample gas can be harmful to the health!
Check the lines for leaks.
Ball Ball valve Control
valve/ pneu- valve
blowback matic 3/2-way
valve drive solenoid
(without valve
PAV01)
Ø12
G1/8 G1/4
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