SS2000 Operator’s Manual
H
2
S in Natural Gas 4–5
To Replace the Scrubber and Scrubber Indicator:
1. Turn off the sample inlet valve.
2. Connect a nitrogen purge line to the sample inlet port making sure
not to exceed the maximum sample inlet pressure specification
shown on the schematic in Figure 4–1.Make sure there is a check
valve in the line to prevent sample gas from contaminating the purge
source.
3. Open the nitrogen purge valve.
4. Purge the system with nitrogen for 10 minutes.
5. Turn off the nitrogen purge valve.
6. Unscrew the compression nuts on the both ends of the scrubber and
scrubber indicator.
7. Gently pull the inlet, outlet and interconnection tubes free from the
scrubber and scrubber indicator.
8. Insert the inlet, outlet and interconnection tubes into the
compression fittings of a new scrubber and scrubber indicator
making sure that each are oriented correctly according to the flow
pattern shown in Figure 4–3.
9. Tighten the compression nuts to the manufacturer’s specification.
Figure 4–4 Scrubber indicator showing H
2
S
breakthrough.
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