Sample Gas Line Connection - ABB SCC-K Operator's Manual

Sample Gas Line Connection

Sample Gas
Connections
Sample Gas Line
Connection
Note
for CO Measurement
Figure 2
Location of the
Converter for
Simultaneous
Measurement of
NOx and CO
8
The gas inlet and outlet hoses / tubes are connected on the rear of the converter.
Standard G1/4-inch threaded joints are available for the connection of the gas
sample lines.
• Do not confuse hose / tube connections for sample gas inlet and outlet; the
connections are labeled accordingly.
• The tightness of the connections can only be guaranteed if the end section of
the connection hose / tube is flat (use a hose-cutter).
Step Action
1 Loosen the sleeve nut of the clamping-ring threaded joint by turning
to the left.
Take care that the nut is removed carefully from the body of the
threaded joint to avoid losing the clamping ring which is
mounted loose in the nut.
2 Push the sleeve nut over the connection hose / tube.
3 Push the clamping ring onto the connection hose / tube with the
thicker bulge pointing to nut.
4 Push the hose / tube onto the supporting nipple in the threaded joint.
5 Tighten the sleeve nut by hand. The hose / tube is now mounted in
such a way that it cannot slip and is resistant to pressure.
6 Check for tightness of all sample lines after connection (see page 14).
For simultaneous measurement of NOx and CO (ppm concentrations) the
CO measurement must be carried out in a separate gas path (see Fig. 2) due to
CO formation in the carbon-molybdenum catalyst.
SCC-C
SCC-K NO / NO Converter Operator's Manual
2
Uras14
P
Condensate Trap
NO /NO
Converter
Cooler Feed Unit
SCC-K
SCC-F
O2 CO, SO2
O2 CO,SO
2
NO
NO
2
42/23-52 EN Rev. 2