TÜV Rheinland Energie und Umwelt GmbH
Air Pollution Control
Page 8 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
List of tables
Table 1: Measured range during testing ........................................................................11
Table 2: Technical data for the Serinus 30 measuring system
(manufacturer’s information) ............................................................................32
Table 3: Certification range VDI 4202 Sheet 1 and DIN EN 14626 ................................44
Table 4: Determination of availability .............................................................................51
Table 5: Response times of the two Serinus 30 measuring systems for CO ..................73
Table 6: Individual readings for the response times for the component carbon
monoxide .........................................................................................................74
Table 7: Results for the short-term drift ..........................................................................76
Table 8: Individual test results for the short-term drift (initial values) ..............................77
Table 9: Individual test results for the short-term drift (final values)................................78
Table 10: Repeatability standard deviation at zero and span point ..................................80
Table 11: Individual test results for the repeatability standard deviation ..........................81
Table 12: Residues of the analytical function for CO .......................................................84
Table 13: Individual results of the “lack of fit” test ............................................................86
Table 14: Sensitivity coefficient to sample gas pressure .................................................88
Table 15: Individual test results for the influence of changes in sample gas pressure .....88
Table 16: Sensitivity coefficient to sample gas temperature ............................................90
Table 17: Individual values obtained from the determination of the influence of
sample gas temperature for NO ......................................................................90
Table 18: Sensitivity coefficient to the surrounding temperature at zero point and
at span point, systems 1 and 2 ........................................................................92
Table 19: Individual results of the test of the sensitivity to the surrounding temperature
for CO .............................................................................................................93
Table 20: Sensitivity coefficient to electrical voltage at zero point and at span point .......94
Table 21: Individual results for the tests of the sensitivity coefficient to electrical
voltage ............................................................................................................95
Table 22: Interferents according to DIN EN 14626 ..........................................................97
Table 23: Influence of the interferents (ct = 8.6 µmol/mol) ...............................................97
Table 24: Individual responses to interferents .................................................................98
Table 25: Individual results of the averaging test .......................................................... 101
Table 26: Individual results for the difference between sample and calibration port ...... 103
Table 27: Results for the long term drift at zero for the component CO ......................... 105
Table 28: Results for the long term drift at span point for the component CO................ 105
Table 29: Individual results for the long term drift .......................................................... 106
Table 30: Determination of the reproducibility standard deviation on the basis of all
data collected during the field test ................................................................. 107
Table 31: Av
ailability of the Serinus 30 analyser ........................................................... 111
Table 32: Performance criteria according to DIN EN 14626 .......................................... 113
Table 33: Expanded uncertainty from the results of the laboratory test for system 1 ..... 115
Table 34: Expanded uncertainty from the results of the laboratory and field tests for
system 1........................................................................................................ 115
Table 35: Expanded uncertainty from the results of the laboratory test for system 2 ..... 116
Table 36: Expanded uncertainty from the results of the laboratory and field tests for
system 2........................................................................................................ 116
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