Bühler technologies GAS 222.20 Ex1 Manual De Instrucciones página 14

GAS 222.20 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 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.
4.6 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:
1)
Connecting flange DN65/PN6/DN3"-150
Sample gas inlet
Sample gas outlet
1)
Test gas connection
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:
14 Bühler Technologies GmbH
Attach an O-ring suit-
able for the expected
ambient temperature
(see "Spare Parts and Ac-
cessories").
Attach the downstream
filter 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 correctly it locks
onto the filter housing.
Probe
GAS 222
G3/4
NPT 1/4
Tube Ø6 mm
Tube Ø1/4
• 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.
4.6.1 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.
4.7 Electrical Connections
WARNING
Hazardous electrical voltage
The device must be installed by trained staff only.
CAUTION
Wrong mains voltage
Wrong mains voltage may damage the device.
Regard the correct mains voltage as given on the type plate.
CAUTION
Equipment damage
Cables damaged
Do not damage the cable during installation. Install a strain
relief for the cable connection. Secure the cable against twist-
ing and loosening. Please note the temperature resistance of
the cables (> 100 °C/212 °F).
Only use cables with a temperature resistance of > 100 °C
(212 °F) to connect to power. Make sure the connecting cable
has sufficient strain relief (match cable diameter to the seal
on the cable fitting).
4.7.1 Connecting the Earth Conductor/Grounding
Always connect all of the designated connections on your unit
to your protective bonding system. Connect the grounding to
the additional equipotential bonding system terminal on the
housing.
BX460041 ◦ 04/2023