TDLAS Gas Analyzer
XA02744C
Hauser
19
Connections to the Supply
Use the following procedure to connect the sample supply line.
To connect the sample supply line
1.
Confirm that the sample probe is correctly installed at the process sup
-
ply tap and that the sample probe valve is closed.
2.
Confirm that the field pressure reducing station is installed properly at
the sample probe and that the pressure regulator at the field pressure
reducing station is closed (adjustment knob turned fully counter-clock
-
wise).
3.
Determine appropriate tubing route from the field pressure reducing
station to the sample conditioning system.
4.
If configured with this analyzer, install the heat trace bundle in the
heat trace sample inlet.
a. Remove the white foam supplied with the SCS.
b. Run the entire heat trace bundle into the enclosure.
c. Once installed, seal the rubber tube around the heat trace by apply
-
ing heat until the tube shrinks down around the heat trace bundle
.
5.
If configured with this analyzer, install the heat trace terminal box
external to the SCS enclosure; ensure that the power source for the
heat trace is provided with a GFI breaker.
a Run the heat trace power back out of the enclosure and into the heat
trace terminal box.
6.
Run stainless steel tubing from the field pressure reducing station (set
for the specified inlet pressure) to the sample supply port of the SCS.
Bend tubing using industrial grade benders, check tubing fit to ensure
proper seating between the tubing and fittings. Fully ream all tubing
ends. Blow out the lines for 10
to
15 seconds with clean, dry nitrogen
or air prior to making the connection.
7.
Connect the inlet tube to the SCS using the 1/4 in. stainless steel com
-
pression-type fitting provided.
8.
Tighten all new fittings 1-1/4 turns with a wrench from finger tight.
For connections with previously swaged ferrules, thread the nut to the
Consult sample probe manufacturer instructions for proper
installation procedures.
The process sample at the sample tap may be at a high
pressure. Use extreme caution when operating the sample
probe valve and the field pressure reducing regulator.
All valves, regulators, switches, etc. shall be operated in
accordance with site lock-out/tag-out procedures.
Hazardous voltage and risk of electric shock
. Follow your
plant safety guidelines or refer to your safety engineer before
attempting to heat the rubber tube.
