ABB ACX Commissioning Instruction page 37

Sample Gas Line Installation,
Procedures for Laying
the Sample Gas Line
(continued)
CI/ACX-EN Rev. D
continued
Incorrect
Do not lay the heated sample gas line in
wall break-throughs which are
subsequently sealed with a sealing
compound under any circumstances.
The sample gas line will be destroyed by
overheating in this case!
Avoid bundling or laying several heated
sample gas lines, so that they touch
each other. This results in overheating
at the contact points.
Do not squeeze the heat insulation in
mounting brackets tightly together, so
that the outer braiding is pressed on to
the heat conductor. If you disregard
this, damage to the protective braiding
and the heated sample gas line may
occur.
ACX Analyzer System Commissioning Instruction
Correct
When laying the heated sample gas line
through a wall break-through, use
bulkhead plates with conduit thread
cable glands, in order to provide
adequate cooling of the sample gas line.
Lay several heated sample gas lines
separately with a distance of at least
2.5 cm and provide adequate ventilation.
Heat can be conducted away as a result.
Tighten the BBS cable clips sufficiently
but not excessively, in order to prevent
damage to the protective braiding and
the heated sample gas line.
Continued on next page
37