Contents
Thermo Scientific
42iQLS Instruction Manual
v
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
Backgrounds 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
Calibration in Dual Range and Auto Range Mode ............................ 4-16
Set NO and NO
x
Background to Zero ........................................... 4-16
Calibrate NO Low ......................................................................... 4-17
Calibrate NO
x
Low ......................................................................... 4-17
Calibrate NO
2
Low ........................................................................ 4-18
Calibrate NO High ........................................................................ 4-18
Calibrate NO
x
High ....................................................................... 4-19
Calibrate NO
2
High ....................................................................... 4-19
Zero and Span Check ........................................................................ 4-20
Manual Calibration ........................................................................... 4-21
Adjust NO and NO
x
Backgrounds ................................................. 4-22
Adjust Span Coefficient.................................................................. 4-23
Reset Bkg to 0.000 and Span Coef to 1.000 ................................... 4-23
Zero/Span Schedule .......................................................................... 4-24
Next Time ..................................................................................... 4-24
Period ............................................................................................ 4-24
Zero/Span/Purge Duration Minutes .............................................. 4-25
Summary of Contents for 42iQLS
Page 1: ...42iQLS Instruction Manual Low Source NO NO2 NOx Analyzer 117436 00 1Sep2019 ...
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Page 34: ...Operation Instrument Display 3 8 42iQLS Instruction Manual Thermo Scientific ...
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