Thermo Scientific 48i Instruction Manual page 13

Chapter 4
Chapter 5
Thermo Fisher Scientific
Restore User Defaults ..................................................................... 3-83
Password Menu ................................................................................. 3-84
Set Password .................................................................................. 3-84
Lock Instrument ............................................................................... 3-85
Change Password .............................................................................. 3-85
Remove Password .............................................................................. 3-85
Unlock Instrument ............................................................................ 3-86
Calibration .......................................................................................................... 4-1
Equipment Required ........................................................................... 4-2
Calibration Standard (Span Gas) ...................................................... 4-2
CO Free Dilution Air (Required for multi-point calibration only) ... 4-2
Compression ................................................................................. 4-3
Drying .......................................................................................... 4-3
CO Removal ................................................................................. 4-3
Gas Titration System (Required for multi-point calibration only) .... 4-3
Flow Meter(s) and Controller(s) .................................................... 4-4
Pressure Regulator for CO Standard Cylinder ............................... 4-4
Mixing Chamber ........................................................................... 4-5
Output Manifold .......................................................................... 4-5
Calibration Procedures ........................................................................ 4-5
Connect to and Configure the Calibration Gas System .................... 4-5
Internal Valve System .................................................................... 4-5
External Connections .................................................................... 4-6
Pre-Calibration ................................................................................ 4-8
Single Point Internal Calibration ...................................................... 4-9
Zero Adjust ................................................................................... 4-9
Span Adjust ................................................................................... 4-9
Multi-Point External Calibration ................................................... 4-10
Zero Adjust ................................................................................. 4-10
Span Adjust ................................................................................. 4-11
Additional Concentration Standards .............................................. 4-11
Calibration Curve .......................................................................... 4-12
Frequency of Calibration ................................................................... 4-12
Periodic Zero and Span Checks ......................................................... 4-12
Zero Check .................................................................................... 4-12
Span Check .................................................................................... 4-13
Automatic Zero and Span Adjustment .............................................. 4-14
References ......................................................................................... 4-15
Preventive Maintenance ................................................................................. 5-1
Safety Precautions ............................................................................... 5-1
Replacement Parts ............................................................................... 5-2
Cleaning the Outside Case .................................................................. 5-2
Cleaning the Optics ............................................................................ 5-2
Model 48i Trace Level-Enhanced Instruction Manual
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