SS2000 Operator’s Manual
H
2
S in Natural Gas 2–15
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.
3. Connect the validation source tube to the analyzer using the 1/4”
stainless steel compression-type fittings provided.
4. Tighten all fittings to fitting manufacturer’s specifications. Secure
tubing to appropriate structural supports as required.
5. Check all connections for gas leaks. SpectraSensors recommends
using a liquid leak detector.
Connecting the Optional Purge (If Applicable)
For systems with the optional enclosure purge, a protective gas supply
consisting of instrument quality compressed air (or inert gas) filtered to 40
microns minimum and containing no more than trace amounts of flammable
gas, vapor or dust will need to be connected to the purge system. The
protective gas supply must originate from a dedicated instrument quality
compressed air header (1/2” pipe or larger) located no farther than 20 feet
(6.1 m) from the analyzer. The gas supply to the purge system must be
regulated from 80 psig (5.5 barg) minimum to 120 psig (8.3 barg) maximum.
To connect the optional purge system:
1. Select or install a protective gas supply header tap, fitted with the
proper tube size fitting and located within 20 feet (6.1 m) of the
analyzer.
2. If a service valve is placed between the protective gas supply header
and the analyzer, it must be installed in close proximity to the
analyzer and be labeled in appropriately.
3. Determine appropriate tubing route from the protective gas supply
header to the purge system inlet port located on the back of the
purge system regulator.
4. Run stainless steel tubing from the protective gas supply [regulated
to 80
–120 psig (5.5–8.3 barg)] to the purge system inlet port on the
back of the purge regulator. Bend tubing using industrial grade
Do not exceed 10 psig (0.8 barg) in sample cell. Damage to cell
window may result.
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