Short name:
NOx Box

Full name:
NO/NO2 Gas Analyzer

What is being measured:
NO is detected and NO2 is measured indirectly.

Sampling Protocol:
Online

Manufacturer:
Teledyne

Model:
T200UP

Instrument year :
2019

Data recording software:
NumaView within the analyzer

Data analysis software:
Data is loaded into Igor for processing

Raw data time resolution:
0.1Hz

Analysis data averaging:
No

Detection limit:
50 ppt

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

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

Sampling method:
Direct sampling with teflon tubing

Sample preparation method:
None

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

Length of tubing (cm):
20

Instrument flow rate:
1 lpm

Tubing inner diameter:
3/16in

Tubing material:
PFA Teflon

Chemical identification method:

Data analysis method:

Quantification method:

Calibration method:

Calibration drift estimate:

Calibration schedule:

Uncertainty estimation method:
Uncertainty in the measurement is taken as the reported uncertainty from the manufacturer, 0.5%

Known interferences:
Certain NOy (e.g., peroxyacetylnitrate) are “read” as NO2 on the NOx analyzer. Can also have interferences from excited OH.

Link to supplemental information:

Additional notes:

Measurement uncertainty:
All measurements have 0.5% uncertainty

Measurement units:
ppb