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Instruction Manual
760000-C
November 2002
3-42 Operation Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 CLD
Figure 3-67. Measuring Efficiency of NO
2
to NO Converter
NO
X
Mode
NO Mode
A. TYPICAL TEST SETUP
B. TYPICAL TEST RESULTS
TO SAMPLE INLET OF
CLD ANALYZER MODULE
NO in
AIR ADDED
OZONATOR OFF
a-b
b
a
c-d
c
OZONATOR
ON
N
2
90
80
85
20
0
FLOWMETER
FM2
METERING
VALVE MV2
CONNECTOR C2
115
VAC
VARIABLE
TRANSFORMER
OFF
T1
OZONATOR
UTILIZING
ULTRAVIOLET
LAMP
FLOWMETER
FM1
METERING
VALVE MV1
CONNECTOR C1
ZERO AIR
STANDARD GAS:
NO IN N
2
BACKGROUND
TO NO
X
MODE
d
ALL LINES AND FITTINGS STAINLESS STEEL OR TEFLON
ON
% Efficiency = 100
1+ a - b
c - d
CONNECTOR C3
FLOW APPROXIMATELY 3
LITERS PER MINUTE
CAUTION: Externally limit sample
flow rate to less than 2200 cc/min.
(
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