Nevco Engineers Pvt. Ltd.

Continuous Air Quality Monitoring

System 300(Opsis)

System 300 is a cost-effective, high-performance, air quality monitoring package, designed for trend and street-level applications. The measurements are based on the DOAS technique (Differential Optical Absorption,Spectroscopy), allowing continuous monitoring of several compounds. System 300 is available in three configurations:
  • BASIC: for sulphur dioxide (SO2), nitrogen dioxide (NO2), ozone (O3)
  • BTX: for Benzene, Toluene, Xylene
  • EXT: for SO2, NO2, O3, Benzene, Toluene, Xylene

True Monitoring

With an Opsis System 300 you will achieve true monitoring of the different components. The System 300 is not affected by contaminated sample lines, NO2 converters, hydrocarbons, blocked filters etc., known problems which affect the data quality from point monitoring systems.

One UV Analyser can Monitor Several UV Gases : NO2,SO2,O3,NO,NH3,NO3,HNO2,TRIMETHYLAMINE,ETHYLBENZENE,1,2,4-TRIMETHYLBENZENE,1,3,5-TRIMETHYLBENZENE,MONOCHLORBENZENE,DICHLORBENZENE,BENZENE,BROMOBENZENE,TOLUENE,P AND M-XYLENE,O-XYLENE,P,M AND O-CRESOL,STYRENE,FORMALDEHYDE,ACETALDEHYDE,CS2,COCL2,CH3CN ( ACETONITRIL),CLO2,PHENOL,CL2,HCN,HCL,HF,CH4


One IR Interroferrometer Analyser can Monitor Several IR Gases : CO,CO2,N2O,CH4,HCL,HF,ETHYLENE,H2S,PROPANE,PENTANE,CHLOROFORM,DICHLORMETHANE,ISOPROPANOL,ETHYLACETATE


Monitoring path length : 100 to 2000 meters or wider range


Approval/certification : Approved by MCERTS, TÜV and U.S. EPA & 19 other agencies across world.

  • Cost-effective, open-path technology
  • High-performance monitoring of criteria pollutants, Smelling Compounds & BTX
  • Representative path-integrated data
  • Easily calibrated with Multi Point Calibrators
  • Operates with a minimum of maintenance
  • Multi-gas and multi-path system with the same Analyser
  • Combines the benefits of UV/FTIR DOAS and TDL technology
  • Total monitoring solution
  • Better Area Coverage
  • Possibility of Fence Line Monitoring
  • Future Up gradation Possible
  • Ability to Measure both Ambient & Stack with Same Analyser
  • Better Linearity : Analyser is a High Resolution Spectrometer
  • Capable of both bench calibration and in field auditing .
  • Automatically compensated /corrected to NTP ( normalized temperature and pressure) measurements
  • Facility of remote control by use of Modem , RS232 or LAN
  • Open path technology Spectrometer has got a Built in data logger ( Data Storage upto 10 years), Hence External data Logger not required.
  • Power Consumption with Open path technology is less as there is no pump or sampling system required.
  • Integrated signal handling system for logging values from external sensors ( upto 256 channels)
  • High Data Capture Rate of 95-98% with open path technology justifies meaning of Continuous Monitoring ( Due to Minimum maintenance)
  • Cost Of Ownership in 5 Years : Cheaper with Open Path technology Spectrometer due to less consumption of spares, consumables & maintenance.

Compound

Typical Measurement Range TÜV/MCERTS approved Min. detectable quantities Zero drift Span drift per year Linearity error

AR500 DOAS Analyser

 

 

 

 

 

NO2

0–1000 mg/m3

Yes

1 mg/m3

±2 mg/m3

±4%

±1%

SO2

0–2000 mg/m3

Yes

1 mg/m3

±2 mg/m3

±4%

±1%

O

0–1000 mg/m

Yes

3 mg/m

±6 mg/m

±4%

±1%

Benzene

0–500 mg/m

Yes

1 mg/m

±2 mg/m

±4%

±1%

Toluene

0–1000 mg/m

1 mg/m

±2 mg/m

±4%

±1%

p-/m-Xylene

0–500 mg/m

1 mg/m

±2 mg/m

±4%

±1%

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