Teledyne 100E - Figure 10-7: M100 Gas Flow and Location of Critical Flow Orifice; Pneumatic Operation; Sample Gas Flow

Theory Of Operation Model 100E Instruction Manual
172 045150102 Rev XB1
10.3. Pneumatic Operation
Caution
It is important that the sample airflow system is leak-tight and not pressurized
over ambient pressure. Regular leak checks should be performed on the
analyzer as described in the maintenance schedule, Table 9-1 . Procedures for
correctly performing leak checks can be found in Section 11.5.1.
Relative Pressure versus Absolute Pressure
In this manual vacuum readings are given in inches of mercury absolute pressure (in-
Hg-A), i.e. indicate an absolute pressure referenced against zero (a perfect vacuum).
10.3.1. Sample Gas Flow
The Flow of gas through the M100E UV Fluorescence SO2 Analyzer is created by a small
internal pump that pulls air though the instrument.
EXHAUST TO OUTER
LAYER OF KICKER
REACTION CELL PURGE
FLO
W
SENSOR
FLOW / PRESSURE
SENSOR PCA
SAMPLE
FILTER
INSTRUMENT CHASSIS
EXHAUST GAS
OUTLET
VACUUM MANIFOLD
SAMPLE GAS
INLET
KICKER EXHAUST TO PUMP
PUMP
FLOW
CONTROL
ASSY
SAMPLE
PRESSURE
SENSOR
UV
LAMP
PMT


SAMPLE
CHAMBER




HYDROCARBON
SCRUBBER
(KICKER)
SPAN GAS INLET
ZERO AIR INLET
Figure 10-7: M100 Gas Flow and Location of Critical Flow Orifice