Plug & Play Light Solution for NOx measurement Monitoring ...
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NOx is a generic term for the nitrogen oxides NO and NO 2 . It reacts in our atmosphere to form a wide variety of toxic products, as well as supporting the formation of ground-level (tropospheric) ozone. Common methods for measuring NOx include sensor technologies based on chemiluminescence and electrochemical techniques. This requires conversion of NO 2 to NO for measurement or calculation of the NO 2 content based on an assumed NO : NO 2 ratio. In addition, NOx can be measured with IR and that can be affected by the content of H 2 O and CO 2 in the sample. Direct UV absorption measurement of both NO and NO 2 is the more precise way to measure total NOx for continuous emissions monitoring, and measurement in the UV-region avoids the influence of H 2 O and CO 2 . Plug & Play Light Solution for NOx measurement Monitoring Environmental Pollution However, system development based on UV Resonance Absorption Spectroscopy (UV-RAS) has been difficult in the past due to challenges in tuning the UV-lamp operation within its environment to optimize lifetime and intensity. A NOx EDL (electrodeless discharge lamp) is a lamp with N 2 , O 2 gas fill that emits a spectrum in the wavelength range between 200 nm to 600 nm. Spectral lines in the 200 nm region can be used for the detection of NO and NO 2 , H 2 S, NH 3, SO 2 and others. Heraeus Noblelight has developed a plug & play light solution for NOx Measurement. This NOx lamp module offers a pre-tuned UV-light source in a stable environment, for easy integration into OEM UV-RAS systems.
Transcript of Plug & Play Light Solution for NOx measurement Monitoring ...
NOx is a generic term for the nitrogen oxides NO and NO2. It reacts in our atmosphere to form a wide variety of toxic products, as well as supporting the formation of ground-level (tropospheric) ozone. Common methods for measuring NOx include sensor technologies based on chemiluminescence and electrochemical techniques. This requires conversion of NO2 to NO for measurement or calculation of the NO2 content based on an assumed NO : NO2 ratio. In addition, NOx can be measured with IR and that can be affected by the content of H2O and CO2 in the sample. Direct UV absorption measurement of both NO and NO2 is the more precise way to measure total NOx for continuous emissions monitoring, and measurement in the UV-region avoids the influence of H2O and CO2.
Plug & Play Light Solution for NOx measurement Monitoring Environmental Pollution
However, system development based on UV Resonance Absorption Spectroscopy (UV-RAS) has been difficult in the past due to challenges in tuning the UV-lamp operation within its environment to optimize lifetime and intensity.
A NOx EDL (electrodeless discharge lamp) is a lamp with N2, O2 gas fill that emits a spectrum in the wavelength range between 200 nm to 600 nm. Spectral lines in the 200 nm region can be used for the detection of NO and NO2, H2S, NH3, SO2 and others. Heraeus Noblelight has developed a plug & play light solution for NOx Measurement. This NOx lamp module offers a pre-tuned UV-light source in a stable environment, for easy integration into OEM UV-RAS systems.
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The Heraeus NOx lamp module has an integrated EDL and comes with the corresponding power supply combined in a box. The Nox-Module is designed for direct illumination of the measurement cell, so there is no additional optical connection needed.
Asia-Pacific, Oceania
Heraeus Noblelight (Shenyang) Ltd.
Shanghai Branch
2F, 5th Building, No. 406 Guilin Road
Xuhui District Shanghai 200233, P.R. China
Phone +86 400 080 2255
Fax +86 (21)3357 5333
America
Heraeus Noblelight America LLC
1520 Broadmoor Blvd. Suite C
Buford, GA 30518
Phone +1 678 835 5681
Fax +1 678 835 5766
www.heraeus-noblelight.com
Europe, Middle East, Africa, Rest of World
Heraeus Noblelight GmbH
Heraeusstrasse 12-14
63450 Hanau, Germany
Phone +49 6181 35 5086
Fax +49 6181 35 7970
www.heraeus-noblelight.com
Plug & Play Light Solution for NOx measurement
Plug & Play 12 V No frequency adjustment Simple integration and replacement Very accurate – direct analysis and measurement of
NO and NO2 possible No crossover of H2O, CO and CO2 Long life time of the lamp (1 year plus) for continuous
measurement Reduced design-in costs – complete plug & play-module
for simple system integration No consumable costs per measurement
Sources of NOx are predominantly man-made: burning fossil fuels for energy generation, such as coal-,oil- and gas-fired power stations, refuse incineration, some chemical processes and vehicle fuels, like modern diesel cars, used for land, water and air transportation.
Lifetime NOx Module
Spectrum NOx Module
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Lifetime (hours)1 year
80% intensity
Intensity (mV)
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Application fields:
Environmental monitoring Emission control testing
Smoke stack monitoring Marine exhaust monitoring
Product name NOx Module N01
Ident. No. 80143476
Spectral distribution 200 – 800nm
Window material fused quartz
Lifetime > 8.000h
Light Output (irradiance 200-400 nm) 0.1 mW/cm² (typical)
Light Output Drift < 1*10-3/h (typical)
UV risk group 2
Light Output (diameter) 8 mm
Size (L x W x H) 105 x 80 x 57 mm
Power supply Voltage 12 ± 0,05 V
Power consumption (operation) 2 W
Power consumption (ignition) 4 W
Lamp ingnition automatically
Ignition time < 5 min
Weight 550 g
Operating temperature 0 - 60°C
Relative Humidity < 90%, non-condensing
Cooling not required
Electrical connector Phoenix Buchse MVSTBU 2,5/2-GB-1,08
Information supplied without guarantee
Features and Benefits
Applications for NOx Module
Technical Specifications
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