Short name:
Ozone analyzer

Full name:
Model 49i UV Photometric O3 Analyzer

What is being measured:
Ozone (UV photometry)

Sampling Protocol:
Online

Manufacturer:
Thermo Scientific

Model:
49i

Instrument year :
2012

Data recording software:
MICAS-X

Data analysis software:
NA

Raw data time resolution:
1 sec

Analysis data averaging:
4 sec

Detection limit:
0.25ppb RMS (zero noise)

Sensitivity to temperature (and correction method, if applicable): :
Unknown

Sensitivity to relative humidity (and correction method, if applicable): :
Unknown

Sampling method:
Direct gas sampling through particle filter

Sample preparation method:
NA

Sample residence time (chamber to instrument) (seconds):
1

Length of tubing (cm):

Instrument flow rate:

Tubing inner diameter:

Tubing material:
FEP Teflon

Chemical identification method:

Data analysis method:

Quantification method:
Onboard instrument

Calibration method:
Factory calibration or comparison to NOx actinometry

Calibration drift estimate:
Low (on the order of weeks)

Calibration schedule:
Variable, as drift detected by NOx actinometry

Uncertainty estimation method:
Based on periodic comparison

Known interferences:
Alkenes

Link to supplemental information:

Additional notes:

Measurement uncertainty:
<10%

Measurement units:
ppb