Principles Of Operation Model T101 Instruction Manual
254
10.3.1. SAMPLE GAS FLOW
The flow of gas through the T101 UV Fluorescence H2S Analyzer is created by a small
internal pump that pulls air though the instrument.
PMT
EXHAUST TO OUTER
LAYER OF
KICKER
REAC TI O N CELL PURGE
FLOW
SENSOR FLOW / PRESSURE
SENSOR PCA SAMPLE
FILTER
INSTRUMEN T CHAS S IS
EXHAUST G AS
OUTLET
VACUUM MANIFOLD
SAMPLE GAS
INLET
KICKER EXHAUST TO PUMP
PUMP
FLOW
CONT ROL
ASSY
SAMPLE
PRESSURE
SENSOR
UV
LAMP
HYDROCAR BON
SCRUBBER
(KICKER)
SPAN GAS INLET
ZERO AIR INL ET
SAMPLE
CHAMBER
2
1
3
SO2
Scrubber
MOLYBDENUM
CONVERTER
SO2
H2S
H2S / SO2
MODE VALVE
Gas Flow w hen mult igas ver sion of
Analyzer is measuring SO2.
Figure 10-7. T101 Gas Flow and Location of Critical Flow Orifice
07266B DCN6485