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Teledyne API
– T200 NO/NO
2
/NO
X
Analyzer Operation Manual
Troubleshooting & Service
259
12.7.10.3. CALCULATING / CHECKING CONVERTER EFFICIENCY
The T200 automatically calculates the current NO
2
conversion efficiency by comparing
a known starting concentration of NO
2
gas to the measured NO output of the converter.
This can be accomplished through Gas Phase Titration (GPT), which is the
recommended method (see Section 12.7.11), or by using bottled NO
2
.
There are three steps to performing the bottled NO
2
method:
Step 1:
Supply the analyzer with a known concentration of NO
2
gas, to the analyzer.
VENT
here if input
is pressurized
Source of
SAMPLE GAS
Removed during
calibration
SAMPLE
EXHAUST
Chassis
PUMP
MODEL 700E
Gas Dilution
Calibrator
Vent here if output of calibrator
is not already vented.
MODEL 701
Zero Gas
Generator
Enclo
sure Wall
Cal
ibrated N
O
2
a
t
H
IG
H
Spa
n
Concen
tration
Figure 12-7:
Setup for determining NO
2
NO Efficiency
– T200 Base Configuration
Step 2:
Input the starting NO
2
concentration value into the T200 by pressing:
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Summary of Contents for T200
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