TAI Model 6200A SO
2
Analyzer Operator Manual, 02164, Rev. G
9.2.6 Unstable Span
Common causes are:
1. Leak in pneumatic system.
2. Unstable UV lamp output - replace lamp.
3. Sample lines or sample filter dirty - clean or replace.
4. Plugged sample inlet orifice - clean with methanol and sonic cleaner.
5. Defective HVPS - use optic test and electric test to isolate the HVPS. See also Section 9.3.10
HVPS test procedure.
6. Bad or defective PMT detector - check Optic test.
7. Reaction cell temperature not stable - observe warning messages, or RCELL TEMP in TEST
functions. Check diagnostic LED in Power Supply Module for normal cycling.
8. PMT temperature not stable - observe warning messages, or PMT TEMP in TEST functions.
9. Sample vent line too short, allowing room air to mix with span gas - line should be a
minimum of 15" long.
10. 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.
11. IZS permeation tube unstable.
A. IZS subsystem leaking - leak check
B. IZS zero air scrubber exhausted - replace charcoal
C. IZS oven temperature unstable - verify stable temperature
D. Permeation tube installed upside down or wrong side, see Figure 6-1 for correct
installation.
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Summary of Contents for 6200A
Page 9: ...TAI Thermal Converter Operator Manual Page 5 FIGURE 2 1 BASIC CONFIGURATION ...
Page 10: ...TAI Thermal Converter Operator Manual Page 6 FIGURE 2 2 WITH IZS OPTION ...
Page 11: ...TAI Thermal Converter Operator Manual Page 7 FIGURE 2 3 WITH M702 CALIBRATOR OPTION ...
Page 13: ...TAI Thermal Converter Operator Manual Page 9 FIGURE 2 4 TRS CONVERTER LAYOUT ...
Page 15: ...TAI Thermal Converter Operator Manual Page 11 FIGURE 2 5 PNEUMATIC CONNECTIONS ...
Page 22: ...TAI Thermal Converter Operator Manual Page 18 FIGURE 3 1 TRS WIRING DIAGRAM ...
Page 25: ...TAI Thermal Converter Operator Manual Page 21 FIGURE 4 1 DILUTER FLOW BLOCK ASSEMBLY ...
Page 27: ......
Page 35: ......
Page 41: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 2 2 Rear Panel 2 4 ...
Page 47: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 2 4 Front Panel 2 10 ...
Page 48: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 2 5 Assembly Layout 2 11 ...
Page 51: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G INTENTIONALLY BLANK 2 14 ...
Page 65: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 5 2 Setup Menu Tree 5 2 ...
Page 107: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G INTENTIONALLY BLANK 6 26 ...
Page 140: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 8 2 Reaction Cell 8 7 ...
Page 141: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 8 3 Pneumatic Diagram 8 8 ...
Page 193: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 9 6 Flow Pressure Sensor 9 50 ...
Page 194: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 9 7 SO2 Sensor Module 9 51 ...
Page 195: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 9 8 SO2 Sensor Module 9 52 ...
Page 198: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 9 9 PMT Cooler Subsystem 9 55 ...
Page 204: ...TAI Model 6200A SO2 Analyzer Operator Manual 02164 Rev G Figure 9 11 Kicker Leak Check 9 61 ...