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Principles Of Operation Model T101 Instruction Manual
254
10.3.1. SAMPLE GAS FLOW
The flow of gas through the T101 UV Fluorescence H
2
S Analyzer is created by a small
internal pump that pulls air though the instrument.
PMT
EXHAUST TO OUTER
LAYER OF
KICKER
REACTION CELL PURGE
FLOW
SENSOR
FLOW / PRESSURE
SENSOR PCA
SAMPLE
FILTER
INSTRUMENT CHASSIS
EXHAUST GAS
OUTLET
VACUUM MANIFOLD
SAMPLE GAS
INLET
KICKER EXHAUST TO PUMP
PUMP
FLOW
CO N T RO L
ASSY
SAMPLE
PRESSURE
SENSOR
UV
LAMP
HYDROCARBON
SCRUBBER
(KICKER)
SPAN GAS INLET
ZERO AIR INLET
SAMPLE
CHAMBER
2
1
3
SO
2
Scrubber
MOLYBDENUM
CONVERTER
SO
2
H
2
S
H2S / SO2
MODE VALVE
Gas Flow when multigas version of
Analyzer is measuring SO
2
.
Figure 10-7. T101 Gas Flow and Location of Critical Flow Orifice
07266B DCN6485