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CHAPTER 5 PREVENTIVE MAINTENANCE...................................................5-1
Spare Parts ....................................................................................................................... 5-1
Cleaning the Optics.......................................................................................................... 5-1
IR Source Replacement.................................................................................................... 5-2
System Leaks and Pump Check Out ................................................................................ 5-2
External Leaks...................................................................................................... 5-3
Leaks Across the Optional Zero/Span Solenoid Valves ...................................... 5-3
CHAPTER 6 TROUBLESHOOTING ................................................................6-1
Troubleshooting Guide .................................................................................................... 6-1
CHAPTER 7 SERVICING .................................................................................7-1
Safety Precautions............................................................................................................ 7-1
Replacement Parts List..................................................................................................... 7-2
IR Source Replacement.................................................................................................... 7-4
Correlation Wheel Replacement ...................................................................................... 7-4
Chopper Motor Replacement........................................................................................... 7-6
Optical Bench Replacement............................................................................................. 7-6
Optical Switch Replacement............................................................................................ 7-7
Bench Heater and Bench Heater Power Supply Replacement......................................... 7-7
Preamplifier/Detector Assembly Replacement ................................................................ 7-8
Pump Rebuilding ............................................................................................................. 7-8
Pump Replacement .......................................................................................................... 7-9
Pressure Transducer Replacement ................................................................................. 7-10
Flow Sensor Replacement.............................................................................................. 7-10
Input Signal Conditioning Board Replacement ............................................................. 7-11
DC and Bias Power Supply Boards Replacement.......................................................... 7-11
Capillary Removal ......................................................................................................... 7-12
Optional Zero/Span and Sample Solenoid Valve Replacement..................................... 7-12
Analog Output Adjustment............................................................................................ 7-12
Pressure Transducer Adjustment ................................................................................... 7-14
Temperature Sensor Adjustment.................................................................................... 7-15
Fuse Replacement .......................................................................................................... 7-16
Servicing Locations........................................................................................................ 7-17
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