vi
2000-OSM, F1
TABLE OF CONTENTS (continued)
Title Page
Cleaning
............................................................................................................................................... 5-2
DIAGNOSTIC TESTS ................................................................................................................................ 5-2
ROM Checksum ......................................................................................................................................... 5-2
Chroma
Board ..................................................................................................................................... 5-4
Digital
Output ....................................................................................................................................... 5-4
Trend
Output
........................................................................................................................................ 5-6
Hardware
Setup
................................................................................................................................... 5-7
SOFTWARE VERIFICATION..................................................................................................................... 5-8
Preliminary Steps................................................................................................................................. 5-8
Chroma
Board
1 Input Table ............................................................................................................... 5-9
Chroma Board 1 Output Table ............................................................................................................ 5-9
Digital
Board
1 Input Table ................................................................................................................ 5-10
Digital
Board
1
Output Table ............................................................................................................. 5-11
Digital
Board 2 ................................................................................................................................... 5-12
Chroma
Board 2 ................................................................................................................................ 5-12
Trend
and
Detector ............................................................................................................................ 5-13
BASIC
COMMON! Size ..................................................................................................................... 5-13
Final
Steps
......................................................................................................................................... 5-13
SECTION 6. TROUBLESHOOTING
TROUBLESHOOTING GUIDELINES ........................................................................................................ 6-1
BASELINE PROBLEMS ............................................................................................................................. 6-1
Baseline or Signal Offset (TCD) .......................................................................................................... 6-1
Cyclic
Short
Term Drift ........................................................................................................................ 6-2
Continuous Upward or Downward Drift ............................................................................................... 6-2
Baseline
Continuous Noise ................................................................................................................. 6-3
Baseline or Signal Offset (FID) ............................................................................................................ 6-3
Baseline Signal Random Noise (FID) .................................................................................................. 6-4
Signal
Offset (FPD).............................................................................................................................. 6-5
Signal Random Baseline Noise (FPD) ................................................................................................ 6-5
ANALYSIS PROBLEMS ............................................................................................................................. 6-6
No
Peaks
............................................................................................................................................. 6-6
Double
Sampling
................................................................................................................................. 6-7
Additional Peaks of Unknown Origin (Mystery Peaks) ........................................................................ 6-8
Variable
Sample Size .......................................................................................................................... 6-8
Variable
Retention Times .................................................................................................................... 6-9
Individual Peak Missing on Report ...................................................................................................... 6-9
Peak
Inversion
................................................................................................................................... 6-10
Chromatogram
Oversized or Off Scale ............................................................................................. 6-10
Reduced
Detector Sensitivity ............................................................................................................ 6-11
Peak
Discrimination
........................................................................................................................... 6-12
TEMPERATURE CONTROL HARDWARE PROBLEMS ........................................................................ 6-12
Temperature
Probe Open .................................................................................................................. 6-12
Temperature
Probe Shorted .............................................................................................................. 6-12
Isothermal Oven Heater Thermocouple Faulty ................................................................................. 6-13
Temperature Control Micro #2 ........................................................................................................... 6-13
Loss of Air .......................................................................................................................................... 6-14
Triac
Failure
....................................................................................................................................... 6-14
T-Rating
Disagreement ..................................................................................................................... 6-15
Exclusion
Jumper Disagreement ....................................................................................................... 6-16