ABB EasyLine Series Instructions For Installation Start-Up And Operation page 78

78 EasyLine EL3000 Series Commissioning Instructions
Maximum length of the sample gas line
Provide for Sample Gas Line Purging
Connection of the sample gas line
1 Heated sample gas line (tube with inside/outside diameter 4/6 mm)
O-ring 6.02 x 2.62
2
3 Socket
4 O-ring 12.42 x 1.78
Connection of a further sample gas line (tube with outside diameter
6 mm):
either with
male fitting with a tapered ISO external thread G1/4"
5
or with
6 Socket
7 Tapered ring
Compression fitting
8
Closure:
9 Screw cap
10 O-ring 12.42 x 1.78
11 Waste gas tube
Sample gas Connection of the sample gas line
inlets: on 19-inch housing:
I from the rear
II from above
III from below
The maximum length of the heated sample gas line (inside diameter
4 mm) is 30 m.
Install a shut-off valve in the sample gas line (definitely recommended
with pressurized sample gas), in order to provide a means for purging the
gas line system by feeding in an inert gas, e.g. nitrogen, from the gas
sampling point.
on wall-mount housing:
from below
from the right
not possible – the sample gas inlet
must always be closed