UV DOAS Analyser
Multi Gas analyser based on UV DOAS and chemometrics algorithms (PLS), able to perform the measure of SO2, NO, NO2, NH3, Cl2, H2S and others. In addition, the instrument can integrated a reliable electrochemical cell for O2, and a Laser TDLAS bench for measuring CO or CH4.
It can be widely used in environmental online monitoring, industrial process control, safety monitoring, etc.
Nitric Oxide [NO]
Nitrogen Dioxide [NO2]
Carbon Monoxide [CO]
Hydrogen Sulphide [H2S]
Sulfur Dioxide [SO2]
High Measurement Accuracy
The minimum detection limit of SO2, NO, NO2 can be 1mg/m3 (15 m optical path)
Ultraviolet has no moisture absorption: undisturbed by moisture and dust.
No cross interference between the gas being measured
NO and NO2 can be measured at the same time, dispense with converter.
Low detection limit.
DOAS + PLS technology, small amount of zero drift and span drift
Available version with external UV bench for use with toxic or corrosive gases.
No optical moving parts and no vibration influence.
Strong gas cell, low cost.
Spectrum automatic adjustment technology, long free maintenance cycle
Light source adopts the pulse source; the service life is 10 years