Teledyne 6200A - Sulfides analyzer - Manual (Page 172)

TAI Model 6200A SO
2
Analyzer Operator Manual, 02164, Rev. G
9.2.11 Slow Response
Contaminated or dirty sample delivery pneumatics
A. Dirty/plugged sample filter or sample lines.
B. Dirty reaction cell.
C. Check leak.
1. Flow rate too low.
2. Wrong materials in contact with sample - use glass or Teflon.
3. Insufficient time allowed for purging of lines upstream of analyzer.
4. Insufficient time allowed for SO
2
cal gas source to become stable or cal gas flow is too low.
9.2.12 Analog Output Doesn't Agree With Display Concentration
1. V/F board DAC's out of calibration. Do DAC calibration and Factory Calibration.
2. Analog outputs electrically loaded down causing voltage to sag. Could be due to input
impedance of chart recorder or data logger being too low or improper grounding.
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