Ecotech Serinus 30 - Table 7: Results for the Short-Term Drift

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
7.3 Testing
The test was performed in accordance with the requirements on testing as stipulated in
EN 14626. According to this standard, the test shall be performed using carbon monoxide at
a concentration level of 70 % to 80 % of the certification range for carbon monoxide.
7.4 Evaluation
Table 7 lists the readings obtained for the short-term drift.
Table 7: Results for the short-term drift
7.5 Assessment
The short-term drift at zero is 0.01 µmol/mol for system 1and -0.08 µmol/mol for system 2.
The short-term drift at span point is 0.08 µmol/mol for system 1 and 0.18 µmol/mol for sys-
tem 2.
Does this comply with the performance criterion? yes
7.6 Detailed presentation of test results
Individual test results are provided in Table 8 and Table 9.
Requirement
-
-0.05 -0.02
-
-0.05 -0.10
-
65.21 64.56
-
65.30 64.66
≤ 0.1
0.01  -0.08 
≤ 0.6
0.08  0.18 
Device 1
Device 2
Averange at zero at the beginning [µmol/mol]
12-hour drift at span D
s,s
[µmol/mol]
Averange at span at the end [µmol/mol]
12-hour drift at zero D
s ,z
[µmol/mol]
Averange at span at the beginning [µmol/mol]
Averange at zero at the end [µmol/mol]