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Getting Started Teledyne API – T101 Operation Manual
46
ZERO/SPAN (Z/S) VALVE GAS FLOW
PMT
EXHAUST TO OUTER
LAYER OF KICKER
REACTION CELL PURGE
FL O W
SENSOR
FLOW / PRESSURE
SENSOR PCA
SAMPLE
FILTER
INSTRUMENT CHASSIS
EXHAUST GAS
OUTLET
VACUUM MANIFOLD
KICKER EXHAUST TO PUMP
PUMP
FL OW
CO NTR O L
ASSY
SAMPLE
PRESSURE
SENSOR
UV
LAM P
HYDROCARBON
SCRUBBER
(KICKER)
SAMPLE
CHAMBER
SO
2
Scrubber
MOLYBDENUM
CONVERTER
SO
2
H
2
S
H2S / SO2
MODE VALVE
ZERO AIR
INLET
SPAN GAS
INLET
SAMPLE/ CAL
VALV E
NO
COM
NC
SAMPLE GAS
INLET
Gas Fl ow wh en m ulti gas versi on of
Analyzer is measuring SO
2.
COM
NC
NO
ZERO/SPAN
VALVE
NC
NO
COM
Figure 3-15. Pneumatic Diagram of the T101 With Z/S Option Installed
The following table describes the state of each valve during the analyzer’s various
operational modes.
Table 3-10. Zero/Span Valve Operating States
MODE VALVE CONDITION VALVE PORT CONNECTION
Sample/Cal Open to SAMPLE inlet
NO COM
SAMPLE
Zero/Span Open to ZERO AIR inlet
NO COM
Sample/Cal Open to zero/span inlet
NC COM
ZERO CAL
Zero/Span Open to ZERO AIR inlet
NO COM
Sample/Cal Open to zero/span inlet
NC COM
SPAN CAL
Zero/Span Open to SPAN GAS inlet
NC COM
07266B DCN6485