Contents
Thermo Scientific
42iQ Instruction Manual
v
Calibration .......................................................................................................... 4-1
Equipment Required ........................................................................... 4-2
Zero Gas Generator.......................................................................... 4-2
Compression ................................................................................. 4-2
Drying .......................................................................................... 4-2
Oxidation ...................................................................................... 4-2
Scrubbing ...................................................................................... 4-3
Gas Phase Titrator............................................................................ 4-3
Flow Controllers ........................................................................... 4-3
Pressure Regulator ......................................................................... 4-3
Ozone Generator .......................................................................... 4-4
Diverter Valve ............................................................................... 4-4
Reaction Chamber ........................................................................ 4-4
Mixing Chamber ........................................................................... 4-4
Output Manifold .......................................................................... 4-5
Reagents ........................................................................................... 4-5
NO Concentration Standard ......................................................... 4-5
Assaying a Working NO Standard Against a NIST-traceable NO
Standard ........................................................................................ 4-5
Zero Air ........................................................................................ 4-6
Dynamic Parameter Specifications for Gas Titrator .......................... 4-6
Determining GPT System Flow Conditions ................................. 4-7
Pre-Calibration ................................................................................... 4-8
Calibration .......................................................................................... 4-9
Connect GPT Apparatus to the Analyzer ....................................... 4-10
Adjust Instrument Gain ................................................................. 4-10
Set NO and NO
x
Background to Zero ........................................ 4-10
Calibrate the NO Channel to the NO Calibration Gas ............... 4-12
Calibrate the NO
x
Channel to the NO
x
Calibration Gas ............. 4-12
Preparing NO, NO
x
, and NO
2
Calibration Curves ..................... 4-13
Alternative Calibration Procedure Using NO
2
Permeation Tube .... 4-15
Commercial Precision Dilution Systems...................................... 4-16
Permeation Tube System............................................................. 4-16
Commercial Permeation Systems ................................................ 4-17
Calibration in Dual Range and Auto Range Mode ............................ 4-17
Set NO and NO
x
Backgrounds to Zero .......................................... 4-17
Calibrate NO Low ......................................................................... 4-18
Calibrate NO
x
Low ......................................................................... 4-19
Calibrate NO
2
Low ........................................................................ 4-19
Calibrate NO High ........................................................................ 4-20
Calibrate NO
x
High ....................................................................... 4-20
Calibrate NO
2
High ....................................................................... 4-21
Zero and Span Check ........................................................................ 4-21
Manual Calibration ........................................................................... 4-22
Chapter 4
Содержание 42iQ
Страница 1: ...42iQ Instruction Manual NO NO2 NOx Analyzer 117435 00 1Apr2020 ...
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Страница 34: ...Operation Instrument Display 3 8 42iQ Instruction Manual Thermo Scientific ...
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Страница 199: ...Maintenance Pump Rebuilding Thermo Scientific 42iQ Instruction Manual 5 7 Figure 5 3 Pump Rebuilding ...
Страница 214: ...Servicing Fan Replacement 7 8 42iQ Instruction Manual Thermo Scientific Figure 7 8 Replacing the Fan ...
Страница 256: ...Servicing DMC Ozonator 7 50 42iQ Instruction Manual Thermo Scientific Figure 7 53 Remove Ammonia Scrubber ...
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