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Products & Services

Online Ambient VOC/BTX Analyzer

The AAQMS-400 Carbon Monoxide (Co) analyser delivers precise and reliable performance at excellent value. It uses proven NDIR technology with standard range 0~50 ppm and 0.08 ppm detectable limit.


S N ENVIRO provide VOC Analyzer to measure methane, non-methane and total hydrocarbon gases providing accurate and reliable measurement data. The VOC analyser provides unparalleled flexibility and offers continuous, fully automated gas analysis over a broad range of concentrations.

UV Source

The Pulsing of the UV source lamp serves to increase the optical intensity where by a greater UV energy throughput and lower detectable concentration are realized.

Removal of Interferences

The permeation scrubber acting as hydrocarbon kicker removes aromatic hydrocarbon such as xylene and naphthalene which causes interference.

Optical filtering are employed to improve the rejection of interference from high nitrogen oxides.

Data stroage and analysis

Stored data are easily retrievable through the serial or ethernet port via PC client software, allowing operators to perform predictive diagnostics and enhanced data analysis by tracking parameter trends.

Key Features
  • Critical orifices provide flow stability
  • Various Outputs Include Ethernet and Rs232
  • User Friendly interface with Large Screen
  • Multi-Tasking software allows viewing text variables while operating
  • Internal Data logging with 1 min to 365 days Multiple averages.
Technical Data

Standard Range Min:0~50 ppm F.S.
Max:0~1000ppm F.S. (Selectable)
Zero Noise 0.4ppb(RMS)
Span Noise 2.5ppb
Lower Detectable limit 0.65ppb
Zero Drift(24 hours) 1 ppb
Span Drift(24 hours) 1%F.S.
Response Time 80s(T90)
Precision 1%
Linearity 1% F.S
Operating Temperature 20~30° C rang (per US EPA guidelines). Instrument may be safely operated over the range of 5~40° C
Power Requirement 100~240 VAC, Converter applicable
Dimensions and Weight 178mm(H)×432mm(W)×597mm(D), 22kg

System Drawing