Ecotech Serinus 30 - Table 14: Sensitivity Coefficient to Sample Gas Pressure; Table 15: Individual Test Results for the Influence of Changes in Sample Gas Pressure

TÜV Rheinland Energie und Umwelt GmbH
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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
7.4 Evaluation
The following sensitivity coefficients for the influence of sample gas pressure were deter-
mined.
Table 14: Sensitivity coefficient to sample gas pressure
7.5 Assessment
For system 1, the sensitivity coefficient to sample gas pressure is 0.04 µmol/mol/kPa.
For system 2, the sensitivity coefficient to sample gas pressure is 0.03 µmol/mol/kPa.
Does this comply with the performance criterion? yes
7.6 Detailed presentation of test results
Table 15: Individual test results for the influence of changes in sample gas pressure
Requirement
Device 2
≤ 0.7
0.04  0.03 
Device 1
Sensitivity coeff. sample gas pressure b
gp
[µmol/mol/kPa]
Device 1 Device 2
Time Pressure [kPa] C
oncentration [µmol/mol] [µmol/mol]
10:33:00 80 64.66 64.05 64.89
10:34:00 80 64.66 64.04 64.85
10:35:00 80 64.66 64.03 64.84
64.04 64.86
10:12:00 110 64.66 65.
28 64.02
10:13:00 110 64.66 65.27 64.02
10:14:00 110 64.66 65.27 64.02
65.27 64.02
Average C
P1
Average C
P2