TÜV Rheinland Energie und Umwelt GmbH
Air Pollution Control
Page 6 of 253
Report on the performance testing of the Serinus 30 ambient air quality
monitoring system manufactured by Ecotech Pty Ltd measuring CO,
Report no.: 936/21221977/D_EN
EP_Ecotech_Serinus30_en.docx
6.1 5.2.1 Certification range ............................................................................................44
6.1 5.2.2 Measuring range ..............................................................................................45
6.1 5.2.3 Negative output signals ....................................................................................46
6.1 5.2.4 Failure in the mains voltage .............................................................................47
6.1 5.2.5 Operating states ...............................................................................................48
6.1 5.2.6 Switch-over ......................................................................................................49
6.1 5.2.7 Maintenance interval ........................................................................................50
6.1 5.2.8 Availability ........................................................................................................51
6.1 5.2.9 Instrument software .........................................................................................52
6.1 5.3.1 General ............................................................................................................53
6.1 5.3.2 Repeatability standard deviation at zero point ..................................................54
6.1 5.3.3 Repeatability standard deviation at span point .................................................55
6.1 5.3.4 Linearity (lack of fit) ..........................................................................................56
6.1 5.3.5 Sensitivity coefficient of sample gas pressure ..................................................57
6.1 5.3.6 Sensitivity coefficient of sample gas temperature .............................................58
6.1 5.3.7 Sensitivity coefficient of surrounding temperature ............................................59
6.1 5.3.8 Sensitivity coefficient of supply voltage ............................................................60
6.1 5.3.9 Cross-sensitivity ...............................................................................................61
6.1 5.3.10 Averaging effect .............................................................................................62
6.1 5.3.11 Standard deviation from paired measurements ..............................................63
6.1 5.3.12 Long-term drift................................................................................................64
6.1 5.3.13 Short-term drift ...............................................................................................65
6.1 5.3.14 Response time ...............................................................................................66
6.1 5.3.15 Difference between sample and calibration port .............................................67
6.1 5.3.16 Converter efficiency .......................................................................................68
6.1 5.3.17 Increase of NO
2
concentrations due to residence in the measuring system ....69
6.1 5.3.18 Overall uncertainty .........................................................................................70
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