Contents
Thermo Scientific
42iQD Instruction Manual
v
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
NO Concentration Standard ......................................................... 4-5
Assaying a Working NO Standard Against a NIST-traceable NO
Dynamic Parameter Specifications for Gas Titrator .......................... 4-6
Determining GPT System Flow Conditions.................................. 4-7
Connect GPT Apparatus to the Analyzer ....................................... 4-10
Adjust Instrument Gain ................................................................. 4-10
Background to Zero ...................................................... 4-10
Calibration Gas ............. 4-12
Calibration Curves .............................................. 4-12
Alternative Calibration Procedure Using NO
Commercial Precision Dilution Systems...................................... 4-13
Permeation Tube System............................................................. 4-13
Calibration in Dual Range and Auto Range Mode ............................ 4-15
Background to Zero ......................................................... 4-15
Low ......................................................................... 4-16
High ....................................................................... 4-16
Zero and Span Check ........................................................................ 4-17
Manual Calibration ........................................................................... 4-18
Backgrounds ................................................. 4-18
Adjust Span Coefficient.................................................................. 4-19
Reset Bkg to 0.000 and Span Coef to 1.000 ................................... 4-20
Zero/Span Schedule .......................................................................... 4-21
Next Time ..................................................................................... 4-21
Zero/Span/Purge Duration Minutes .............................................. 4-21
Schedule Averaging Time ............................................................... 4-22
Background Calibration and Span Calibration ............................... 4-22
Zero/Span Ratio ............................................................................. 4-22
Summary of Contents for 42iQD
Page 1: ...42iQD Instruction Manual NOx Analyzer 119013 00 1Sep2021 ...
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Page 32: ...Operation Instrument Display 3 8 42iQD Instruction Manual Thermo Scientific ...
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