Optronics PG11 - Page 15

The below table shows three possible configurations mounting the Duct flange:
PG11
mounted in
the Duct
flange kit
Detector can easily be removed from the duct
to perform a Gas test. Nozzle not used for gas
testing.
PG11
mounted in
Duct flange
with gas
test line
connected
to the
nozzle
Installed with the Nozzle installed in the front
of the PG11, and a flexible tube connected
from the nozzle to the Duct flange. With the
Environment shield installed this solution
works well doing gas with tests when the air is
flowing in the duck. Without the Environment
shield it is more difficult to do the Gas test
since the gas is faster diluted and therefore
very high flow on the test gas is required.
PGE11
Mounted in
Duct Flange
kit. Through
the rigid gas
pipe a gas
test can be
performed
Installed with a rigid gas pipe.
Can be challenging to perform gas tests if
there is air flow in the duct.
Document 022-80036-OM Revision R03 Page 15 of 48