Teledyne 9110TH - Nitrogen Oxides Analyzer - Manual (Page 50)

Model 9110TH NOx Analyzer Getting Started
Teledyne Analytical Instruments 30
VACUUM
PRESSURE
SENSOR
SAMPLE
PRESSURE
SENSOR O3
FLOW
SE
N
S
OR
FLOW PRESSURE
SENSOR PCA
INSTRUMENT CHASSIS
PERMAPURE
DRYER
NO/NO
X
VALVE
AUTOZERO
VALVE
O
3
GENERATOR
SAMPLE
GAS
INLET
Fil
ter
Orifice Dia.
0.004"
PUMP
NO
X
E
x
ha
us
t
Scr
u
b
b
er
O
3
Destruct
EXHAUST
GAS
OUTLET
EX
HA
US
T M
A
NIF
O
LD
Orifice Dia.
0.007"
Orifice Dia.
0.007"
REACTION
CELL
PMT
NC
COM NO
NC
COM
NO
NO
2
Converter
Figure 3-16: 9110TM Internal Pneumatic Block Diagram - Standard Configuration
Note Pneumatic Diagrams do not reflect the physical layout of the instrument.
The most significant differences between the 9110TH and 9110TM versions in regards
to pneumatic flow are:
 A bypass line leading directly from the particulate filter to the exhaust
manifold is present on the 9110TH, but not in the 9110TM.
 The diameter of the critical flow orifice controlling the gas flow into the
sample chamber is smaller and therefore the flow rate of sample gas through
the instrument is lower.