SS1000 Operator’s Manual
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10.
While gas is flowing, briefly open the bypass valve on the membrane
separator filter to clear out any liquids that may have accumulated
during startup.
To connect the sample return:
1.
Confirm that the low-pressure flare or atmospheric vent header
shut-off valve is closed.
2.
Determine appropriate tubing route from the analyzer to the low-
pressure flare or atmospheric vent header.
3.
Run stainless steel tubing from the sample return port to the low-
pressure flare or atmospheric vent header connection. 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 10–15 seconds with clean, dry nitrogen or air
prior to making the connection.
4.
Connect the sample return tube to the analyzer using the 1/4"
stainless steel compression-type quick connect fitting provided.
5.
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 previously pulled up position, then tighten slightly with a wrench.
Secure tubing to appropriate structural supports as required.
6.
Check all connections for gas leaks. SpectraSensors recommends
using a liquid leak detector.
Conditioning the SCS Tubing
Newly installed systems invariably have some trace contaminants and/or are
intended for measuring trace amounts of gas constituents that tend to cling to
system walls resulting in erroneous readings if the constituents are not in
equilibrium with the system walls. Therefore, once the analyzer is completely
connected, the entire system (i.e., from the sample source valve to the vent or
return) should be conditioned by flowing sample gas through the system for up
to 12 hours (or until reading stabilizes) after the system is powered up and
before actual readings are taken. Progress of the system conditioning can be
monitored via the gas concentration readings. Once the gas constituents have
reached equilibrium with the system walls, the readings should stabilize.
All valves, regulators, switches, etc. should be operated in
accordance with site lock-out/tag-out procedures.
UK Distibution by IMA Ltd
Tel: +44 (0)1943 878877 Email: [email protected] Web: www.ima.co.uk