Thermo Scientific 48iQ Instruction Manual page 6

Contents
Chapter 7
Chapter 8
vi 48iQ Instruction Manual
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 ................................................................ 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 ........................................................... 7-26
DMC Optical Bench ......................................................................... 7-29
Optical Bench Removal ................................................................. 7-30
Optical Switch Replacement .......................................................... 7-31
Purge Wheel Housing Removal...................................................... 7-34
Filter Wheel Replacement .............................................................. 7-35
Motor Replacement ....................................................................... 7-37
Motor and Filter Wheel Alignment ................................................ 7-39
Optical Bench/Heater Removal ...................................................... 7-41
Pre-Amp/Detector Assembly Removal ........................................... 7-43
IR Source Replacement .................................................................. 7-45
Optional Manifold Replacement ....................................................... 7-48
Optional Zero Air Scrubber Replacement ......................................... 7-50
Optional DMC Oxygen Sensor......................................................... 7-51
Oxygen Sensor Removal ................................................................. 7-51
Oxygen Sensor Board Replacement ................................................ 7-54
Oxygen Sensor Capillary Replacement ........................................... 7-56
Oxygen Sensor Replacement .......................................................... 7-58
System Description ........................................................................................... 8-1
Optical Bench DMC........................................................................... 8-2
Optical Bench Hardware .................................................................. 8-2
Filter Wheel Motor .......................................................................... 8-2
Filter Wheel Purge ........................................................................ 8-2
Detector Preamp .............................................................................. 8-3
Infrared Source ................................................................................. 8-3
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