ABB ACX Commissioning Instruction page 36

Sample Gas Line Installation,
Procedures for Laying
the Sample Gas Line
36
continued
Incorrect
Do not lay the heated sample gas lines
directly side-by-side in an enclosed duct
or shaft. This results in heat
accumulation.
Prevent powdery substances, adhesives
or other thermally insulating materials
from soiling the heated sample gas line.
Otherwise, overheating will occur at
these points.
Avoid heat accumulation through
wrapping the heated sample gas line
with other materials, otherwise the
sample gas line will overheat at these
points. Do not cover the area near the
temperature sensor, otherwise the rest
of the sample gas line will cool down.
ACX Analyzer System Commissioning Instruction
Correct
Ensure that the hoses do not touch.
Maintain a distance of 25 mm.
Provide adequate ventilation. Heat can
be conducted away as a result.
If soiling occurs, clean the materials and
remedy the cause. Heat can be
conducted away again as a result.
Do not wrap the sample gas line. Ensure
that the area near the temperature
sensor is exposed.
This results in error-free temperature
measurement.
Continued on next page
CI/ACX-EN Rev. D