Thermo Scientific iQ Series Instruction Manual page 5

Thermo Scientific
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 Backgrounds to Zero ............................................................. 4-10
Calibrate the NO Channel to the NO Calibration Gas ............... 4-12
Calibrate the NO
x
Preparing NO, NO
Alternative Calibration Procedure Using NO
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 Background Readings to Zero .................................................. 4-17
Calibrate NO Low ......................................................................... 4-18
Calibrate NO Low ......................................................................... 4-19
x
Calibrate NO Low ........................................................................ 4-19
2
Calibrate NO High ........................................................................ 4-20
Calibrate NO High ....................................................................... 4-20
x
Calibrate NO High ....................................................................... 4-21
2
Zero and Span Check ........................................................................ 4-21
Manual Calibration ........................................................................... 4-22
Adjust Backgrounds ....................................................................... 4-23
Adjust Span Coefficient.................................................................. 4-24
Reset Bkg to 0.000 and Span Coef to 1.000 ................................... 4-25
Zero/Span Schedule .......................................................................... 4-26
Next Time ..................................................................................... 4-26
Period ............................................................................................ 4-26
Zero/Span/Purge Duration Minutes .............................................. 4-26
Schedule Averaging Time ............................................................... 4-27
Channel to the NO Calibration Gas ............. 4-12
x
, and NO Calibration Curves ..................... 4-13
x 2
Contents
Permeation Tube .... 4-15
2
42iQTL Instruction Manual v