Thermo Scientific 42iQHL Instruction Manual page 5

Thermo Scientific
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 Backgrounds to Zero ....................................... 4-10
x
Calibrate the NO Channel to the NO Calibration Gas ............... 4-12
Calibrate the NO
x
Preparing NO, NO
Calibration in Dual Range and Auto Range Mode ............................ 4-16
Set NO and NO Background to Zero ........................................... 4-16
x
Calibrate NO Low ......................................................................... 4-17
Calibrate NO Low ......................................................................... 4-17
x
Calibrate NO Low ........................................................................ 4-18
2
Calibrate NO High ........................................................................ 4-18
Calibrate NO High ....................................................................... 4-19
x
Calibrate NO High ....................................................................... 4-19
2
Zero and Span Check ........................................................................ 4-20
Manual Calibration ........................................................................... 4-21
Adjust NO and NO
x
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
Schedule Averaging Time ............................................................... 4-25
Background Calibration and Span Calibration ............................... 4-25
Channel to the NO Calibration Gas ............. 4-12
x
, and NO Calibration Curves ..................... 4-13
x 2
Backgrounds ................................................. 4-22
Contents
42iQHL Instruction Manual v