Thermo Scientific 5028i Instruction Manual page 19

Chapter 6
Chapter 7
Thermo Fisher Scientific
Leak Test ...................................................................................... 5-6
Filter Tape Replacement ............................................................... 5-6
Greasing the Cam ......................................................................... 5-8
Troubleshooting.........................................................................................6-1
Safety Precautions ......................................................................... 6-1
Troubleshooting Guides ............................................................... 6-1
Board-Level Connection Diagrams ............................................... 6-6
Connector Pin Descriptions ......................................................... 6-7
Service Locations ........................................................................ 6-22
Servicing ....................................................................................................7-1
Safety Precautions ......................................................................... 7-3
Firmware Updates ........................................................................ 7-4
Accessing the Service Mode .......................................................... 7-4
Replacement Parts List ................................................................. 7-5
Cable List ..................................................................................... 7-6
External Device Connection Components .................................... 7-7
Removing the Measurement Case Assembly and Rear Panel ......... 7-9
Fuse Replacement ....................................................................... 7-10
Fan/Filter Replacement ............................................................... 7-10
Detector Amplifier Assembly Replacement ................................. 7-11
Detector Amplifier Board Calibration ........................................ 7-12
External Pump Replacement....................................................... 7-13
Pressure Board Replacement ....................................................... 7-14
Pressure Board Calibration ......................................................... 7-17
Analog Output Testing ............................................................... 7-18
Analog Output Calibration ........................................................ 7-20
Analog Input Calibration ........................................................... 7-21
Calibrating the Input Channels to Zero Volts .......................... 7-21
Calibrating the Input Channels to Full-Scale ........................... 7-21
Themistor Replacement .............................................................. 7-22
I/O Expansion Board (Optional) Replacement ........................... 7-23
Digital Output Board Replacement ............................................ 7-24
Motherboard Replacement ......................................................... 7-25
Measurement Interface Board Replacement ................................ 7-25
Photo Interrupt Board Replacement ........................................... 7-26
Proportional Valve Replacement ................................................. 7-27
Detector Assembly Replacement ................................................. 7-28
Flow RTD Replacement ............................................................. 7-29
Transformer Replacement ........................................................... 7-30
Radius Tube Replacement ........................................................... 7-31
Ambient RH/Temp Replacement ............................................... 7-32
Front Panel Board Replacement.................................................. 7-33
LCD Module Replacement ........................................................ 7-34
Service Locations ........................................................................ 7-35
Contents
Model 5028i Instruction Manual xiii