SS2100 H
2
S Analyzer
B–18 4900002218 rev. C 11-6-15
efficiency indicator changes color from turquoise to dark grey if there is any
H
2
S breakthrough, as shown in Figure B–11. Alternatively, regular validation of
the system with an appropriate gas standard will indicate when the scrubber
needs to be replaced.
The system will activate a New Scrubber Alarm fault, which triggers the
General Fault Alarm to indicate when it is time to replace the scrubber and
scrubber efficiency indicator. Once the scrubber and scrubber efficiency
indicator have been replaced, reset the scrubber lifetime monitor with the New
Scrub Installed parameter and the General Fault Alarm with the Reset
option for the General Alarm
DO parameter (see “To change parameters in
Mode 2” in the Firmware Manual for your analyzer).
When specifying gas standards, indicate H
2
S in methane balance.
For a measured range of 0-20 ppm, a concentration of 4-16 ppm
is recommended.
Figure B–11 H
2
S scrubber efficiency
indicator before and after breakthrough
After breakthrough
Before breakthrough
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