Ambient SO2 Gas Analyzer (CAAQMS)

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Ambient SO2 Gas Analyzer (CAAQMS)
Measuring items Sulfur Dioxide(S02) in ambient air
Measuring method Ultraviolet fluorescent method (UVF)
Lower Detectable Limit Less than 0.5ppb
Repeatability within ±1 % of span gas concentration
Zero drift Less than 1 ppb
Span drift within ±1%/full scale (1 day)
Response time(95%) Less than 120 seconds (T95)
Linearity within ±1%/full scale
Precision within 1% of reading or 1 ppb
Ambient temperature 5 - 40°C
Analog output 0-1 V / 0-5V or 4-20mA (option)
Sample flow rate Stabilized flow control by 700cc/min Critical Orifice
Particulate filter 47mm Teflon filter
Certified US EPA

The Mezus 110 SO2 Analyzer is the analyzer that measures the minimum amount of SO2 in air correctly using the UV fluorescence method. The UV lamp with a lower chance of sensitivity used for MEZUS 110 was applied, and the self-manufactured kicker to remove the obstacle components such as HC was installed.
To prevent the adhesion of the specimen, the response chamber and specimen tube of special coating material were used to improve minimum detection and precision.
All gas analyzers of the MEZUS series were equipped with a screen interface design using a TFT-LCD and touch screen so that the user can operate the analyzer and maximize the visual image. The MCU applied to the analyzer is an ARM11 32-bit processor and operates based on Linux Kernel 2.6, which maximizes the system's stability due to multiprocessing.
In addition, the analyzer is equipped with an automatic zero correction system (Auto Zero) for smooth measurement and various interfaces (Ethernet, RS232, RS485, USB, DIO, and Analog Out) so that users can use it more conveniently and effectively. US EPA Reference Method: RFSA-1120-257


  • Measuring range: Ranges 0-0.1 / 0.5 / 1 ppm, user selectable.
  • 7inch TFT LCD & touch screen interface.
  • Ethernet, RS-232, RS-485 & USB ports.
  • USB interface utilizes for System Program Update. Temperature & pressure compensation
  • Internal zero(optional)
  • Stored data can be retrieved RS-232, USB Interface and TCP/IP network
  • In built Data Logger Utilizes NAND-Flash to Store up to 1year

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Have a question about our Device? Don’t hesitate to contact us directly using the form on this page or by visiting our office.


Ph. +91 7337418685

Manjeera Trinity Corporate,
Plot No-112, Survey No:1050,
JNTU, Hitech city Rd, KPHB Colony
Kukatpally, Hyderabad-500072

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