Chromatotec Group

- BTEX Analyzer with PID Detector



A GC PID for automatic monitoring of compounds, in air, water or soils: This instrument uses a port valve with a loop, and a metallic 0.53 mm ID column. It has a minimum detection level of ppb. Miniaturization, sensitivity, mobility and flexibility are its main features. Everything from the sample port up to the data storage is integrated in a 19' rack 4U. Isothermal oven in standard (programmed gradient temperature in option) : pressure/flow control of the carrier gas by the-valve.

  • Before final delivery the analyser is tested for one week by the quality control department.
  • Photo ionisation detector (PID), 10,6 eV lamp in standard.
  • Other lamps on request.
  • Self-cleaning of the lamp for high stability.
  • 0….1 V analogue output (contact) for the purpose of low or high alarms on the concentrations of the analysed compounds.
  • Bi-directionnal RS-232 to transfer data and results to the computer.
  • The Vistachrom software enables the user to view and store data on a PC. It provides comfortable user friendly utilities to recalculate, calibrate and export data and to configure the measurement.
  • The software allows the calculation of retention time, area, mass or concentration profiles, in any international measuring unit.

On-line results are transmitted via :

  • A MODBUS / JBUS or German communication protocol.
  • Analog output 4-20 mA or 0-10 V.
  • Automatic validation
  • 24 V power supply.
  • Nitrogen or air generator
  • CALIB : Automatic data validation with internal calibration using a permeation tube
  • H2S with transportable system

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