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Teledyne API Model 200A NO
X
Analyzer Instruction Manual, 02246, Rev. F1
5.2.2.5 Formula Values
The slope and offset terms should be checked after each calibration. The values for these terms
contain valuable information about the internal health of the analyzer. The range of acceptable
values and their meanings is given in Section 7.10.
To compute the NO
x
and NO concentrations, the formula for a straight line is used.
Where:
y = the NO
x
or NO concentration
m = the slope
x = the conditioned PMT tube output (normalized PMT voltage)
b = the offset
y = mx + b
In comparison with analog analyzers the slope term is equivalent to the "span pot" and the b term
is equivalent to the "zero pot". Again, like an analog analyzer there is only a limited range of
adjustment allowed for either term, and there are consequences of having the values near the
high or low limits of their respective ranges.
The x term is the conditioned PMT signal. PMT signal is adjusted for the AutoZero background,
range, temperature, and pressure.
The offset (b) term is the total background light with the AutoZero term subtracted out.
The AutoZero term measures detector dark current, amplifier noise, and ozone generator
background. Therefore, in the case of the NO channel the b term should be very close to zero. In
the NO
x
channel the b term is composed mostly of the molybdenum converter background.
After every zero or span calibration, it is very important to check the QUALITY of the
calibration. The calibration of the M200A involves balancing several sections of electronics and
software to achieve an optimum balance of accuracy, noise, linearity and dynamic range.
See Section 7.10 for the calibration quality check procedure.
5-13
Содержание 200A
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Страница 16: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 2 2 Rear Panel 2 4 ...
Страница 17: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 2 3 Inlet and Exhaust Venting 2 5 ...
Страница 22: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 2 4 Front Panel 2 10 ...
Страница 23: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 2 5 Assembly Layout 2 11 ...
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Страница 32: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 4 1 Block Diagram 4 2 ...
Страница 38: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 4 2 External Pump Pack 4 8 ...
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Страница 42: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 5 1 Sample Menu Tree 5 2 ...
Страница 43: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 5 2 Setup Menu Tree 5 3 ...
Страница 91: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 7 1 Calibration Setup 7 3 ...
Страница 109: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 7 2 Diagram of GPT Calibration System 7 21 ...
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Страница 130: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 8 1 Replacing the Particulate Filter 8 4 ...
Страница 134: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 8 2 Molybdenum Converter Assembly 8 8 ...
Страница 140: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 8 6 Pneumatic Diagram with IZS Option 8 14 ...
Страница 167: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 1 Span Calibration Voltage 9 25 ...
Страница 178: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 2 CPU Board Jumper Settings 9 36 ...
Страница 182: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 3 RS 232 PIN Assignments 9 40 ...
Страница 188: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 4 V F Board Settings 9 46 ...
Страница 193: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 5 Power Supply Module Layout 9 51 ...
Страница 194: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 6 Electrical Block Diagram 9 52 ...
Страница 198: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 7 Ozone Generator Subsystem 9 56 ...
Страница 201: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 8 Flow Pressure Sensor 9 59 ...
Страница 202: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 9 NOx Sensor Module 9 60 ...
Страница 203: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 10 NOx Sensor Module 9 61 ...
Страница 205: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 11 PMT Cooler Subsystem 9 63 ...
Страница 207: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 12 High Voltage Power Supply 9 65 ...
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