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Teledyne API - T100H Addendum to T100 Operation Manual Optional Hardware and Software
27
Table 5-1 describes the state of each valve during the analyzer’s various operational modes.
Table 5-1: Two-Point Span Valve Operating States
MODE VALVE CONDITION
Sample/Cal Open to SAMPLE inlet
Zero Gas Valve Closed to ZERO AIR inlet
High Span Valve Closed to HIGH SPAN inlet
SAMPLE
Low Span Valve Closed to LOW SPAN inlet
Sample/Cal Closed to SAMPLE inlet
Zero Gas Valve Open to ZERO AIR inlet
High Span Valve Closed to HIGH SPAN inlet
ZERO
CAL
Low Span Valve Closed to LOW SPAN inlet
Sample/Cal Closed to SAMPLE inlet
Zero Gas Valve Closed to ZERO AIR inlet
High Span Valve Open to HIGH SPAN inlet
HIGH
SPAN
CAL
Low Span Valve Closed to LOW SPAN inlet
Sample/Cal Closed to SAMPLE inlet
Zero Gas Valve Closed to ZERO AIR inlet
High Span Valve Closed to HIGH SPAN inlet
Low Span
Check
Low Span Valve Open to LOW SPAN inlet
5.3. Hydrocarbon Kicker Option (OPT 86D)
This option is specifically designed for those applications where hydrocarbons are present in the sample gas
stream. It includes an internal, scrubber consisting of a tube of a specialized plastic that absorbs hydrocarbons
very well located within an outer flexible plastic tube shell.
As gas flows through the inner tube, hydrocarbons are absorbed into the membrane walls. and transported
through the membrane wall and into the hydrocarbon free, purge gas flowing through the outer tube (see Figure
5-3). This process is driven by the hydrocarbon concentration gradient between the inner and outer of the tubes.
INNER
TUBE
(Ambient Air)
OUTER TUBE
(Clean Air)
SAMPLE AI
R
FROM
PARTICULATE FILTER
CLEANED
SAMPLE AIR
TO
FLOW
PRESSURE ASSY
CLEAN
PURGE AIR
FROM
SAMPLE CELL
USED PURGE AIR
TO
EXHAUST PORT
AND PUMP
Figure 5-3: Hydrocarbon Scrubber (Kicker) – OPT 86D
The scrubbed air from the inner tube is returned to be used as the purge gas in the outer tube after it passes
through the analyzers reaction cell. This means that when the analyzer is first started, the concentration gradient
07265A DCN6038