Thermo Scientific 450iQ Instruction Manual page 6

Chapter 7
Chapter 8
450iQ Instruction Manual
Troubleshooting Guide ....................................................................... 6-1
Servicing ............................................................................................................. 7-1
Safety Precautions ............................................................................... 7-1
Firmware Updates ............................................................................... 7-3
Replacement Parts List ........................................................................ 7-3
Fuse Replacement ............................................................................... 7-5
Filter Replacement .............................................................................. 7-6
Fan Replacement ................................................................................. 7-7
Measurement Side Removal and Replacing ......................................... 7-9
LCD Module Replacement ............................................................... 7-12
I/O Replacement ............................................................................... 7-14
Peripherals Support Board and System Controller Board
Replacement ..................................................................................... 7-16
DMC Pressure and Flow Board ........................................................ 7-17
Pump Replacement ........................................................................... 7-19
Capillary Cleaning and/or Replacement ............................................ 7-22
Capillary O-Ring Replacement ......................................................... 7-24
Power Supply Replacement ............................................................... 7-24
Step POL Board Replacement ........................................................... 7-27
DMC Optical Bench Removal .......................................................... 7-30
Optical Bench Assembly Removal .................................................. 7-30
Optical Bench Assembly Removal .................................................. 7-32
Photomultiplier Tube (PMT) Replacement ................................... 7-34
Flasher Pack Replacement .............................................................. 7-36
Flasher Pack Lamp Replacement .................................................... 7-37
Photo Lamp Detector Board Replacement ..................................... 7-38
Kicker Assembly Replacement ........................................................ 7-40
Optional Manifold Replacement ....................................................... 7-41
Scrubber Replacement ....................................................................... 7-43
Optional DMC Permeation Oven Solenoid Valve Replacement ....... 7-44
Mode Valve Replacement .................................................................. 7-46
Converter DMC Replacement .......................................................... 7-48
Converter Assembly Board Replacement ........................................ 7-49
Converter Cartridge Heater Replacement ....................................... 7-50
Optional Permeation Oven Replacement .......................................... 7-52
Optional Permeation Oven Board Replacement ................................ 7-55
System Description ........................................................................................... 8-1
Optical Bench DMC........................................................................... 8-2
Heated Hydrocarbon Kicker ............................................................ 8-2
Optical Bench Hardware .................................................................. 8-2
Condensing Lens ........................................................................... 8-2
Mirror Assembly ........................................................................... 8-2
Light Baffle ................................................................................... 8-2
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