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Teledyne API Model 200A NO
X
Analyzer Instruction Manual, 02246, Rev. F1
9.2.6 Unstable Span
Common causes are:
1.
Leak in pneumatic system.
2.
Light leak - check the sensor module with strong light.
3.
Instrument not fully warmed up.
4.
Sample lines or sample filter dirty - clean or replace.
5.
Plugged sample inlet orifice - clean with methanol and sonic cleaner.
6.
Defective HVPS - see HVPS test procedure.
7.
Bad or defective PMT detector - replace.
8.
Reaction cell temp not stable - observe warning messages, or RCELL TEMP in TEST
functions. Check diagnostic LED in Power Supply Module for normal cycling.
9.
Large variations in ambient temperature - observe warning messages, or BOX TEMP in
TEST functions.
10.
Large variations in line voltage. - Line voltage should remain -10% of nominal.
11.
Pump not maintaining steady vacuum - observe warning messages, or RCEL in TEST
functions.
12.
Sample vent line too short, allowing room air to mix with span gas. Line should be a
minimum of 15" long.
13.
Calibration gas source unstable - if equipped with IZS option, permeation tube could be
nearing exhaustion or IZS oven temperature is unstable, check warning messages, or observe
IZS TEMP in TEST function.
14.
IZS permeation tube unstable -
A.
IZS subsystem leaking - leak check
B.
IZS zero air scrubber exhausted - replace charcoal and Purafil
C.
Moly converter efficiency unstable - check converter efficiency or replace
D.
IZS oven temperature unstable - verify stable temperature
E.
Permeation tube installed upside down or wrong side, see
installation.
F.
Variations in humidity. The permeation tube changes output depending on the humidity
of the dilution air. Room air is drawn into the zero air scrubber. If the room air has high
humidity or if the humidity varies, the output of the permeation tube will be unstable.
9-30
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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