Chromatotec Group

- Model BTX - Benzene Analyzer / Toluene Analyzer / Ethylbenzene Analyzer / Xylene Analyzer

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A GC/FID instrument for BTEX monitoring in air, water and soil. The airmoVOC BTX is a gas chromatograph for the analysis and monitoring of trace amounts of benzene, toluene, ethylbenzene (m/p/o) xylene by FID detection.

  • Automatic sampling and concentration using an absorbant trap
  • Desorption from the trap and injection into a metallic capilliary column regulated by a temperature gradient. The H2 pressure at the column head is controlled by a piezo valve.
  • The detection of all compounds eluting from the column is performed by a FID detector

The airmoVOC BTEX is equipped with an integrated PC comprising of the Vistachrom programme. The internal calibration option CALIB allows for automatic validation of results. (Certified Benzene tube at ± 10%).

The instrument is robust, compact and very low maintenance and offers excellent result quality : repeatability, linearity, stability and sensibility (ppt).

Chromatotec developed software system allows:

  • Remote monitoring
  • Full traceability through archiving of results and QC
  • Set up and control of threshold alarms
  • Export of data MODBUS / 4-20mA /0-10V

  • Automatic data transfer through :
  • Module for 4 output 4-20mA / Modbus / MGS1
  • Hydrogen Generator
  • Zero Air Generator
  • Multiple stream analysis with Multiplexer
  • Dilution system
  • Heated lines
  • AirmoVOC Expert ppt

  • BTEX analysis:
    • Standard – 5 peaks : Benzene, Toluene, Ethylbenzene, M+P Xylene, O Xylene
    • Option of– 6 peaks : Benzene, Toluene,
    • Ethylbenzene,,Styrene,
    • O Xylene, M+P Xylene.
    • Also option for : Benzene, 1.3 Butadiene
  • Detection limit: Benzene < 50 ppt or 0,16 µg/m3
  • Standard detection range:
    • 0,1 to 380 µg/m3 for Benzene
    • standard amibient air monitoring 0 to 50 µg/m3
  • Relative Standard Deviation:
    • < 0.3 % over 48 h (retention time)
    • < 3 % over 48 h (concentration)
  • Results:
    • Full result storage (data and graphics)
    • Module for 4 output 4-20 mA current output (option)
    • MODBUS / JBUS communication protocol (option)
  • Cycle time: 15 to 30 min
  • Gas supply: H2  (FID and carrier gas): 30 ml/min (supply 2 bar ; 1/16’’
  • Swagelok)
    • Air (FID) : 180 ml/min (supply 3 bar ; 1/8’’ Swagelok)
    • Sample supply (sample pump) 1/4’’ Swagelok
    • Volume sampled: 30 to 700 ml (programmable)
  • Power supply:
    • Main: 230V / 115V or 50 Hz / 60Hz
    • Battery: 24V (option)
  • Electrical consumption: Average: 150 VA ; Peak : 360 VA
  • Dimensions and weight:
    • Rack: 19’’ (5U)
    • Height: 222 mm
    • Width: 482 mm
    • Depth: 600 mm
    • Net weight analyser: 22 kg

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