Chromatotec Group

- Sulphur / Mercaptans / Odour Measurement Analyzer

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The energyMEDOR is an automatic and isothermal gas chromatograph dedicated to sulfur compounds analysis (H2S, mercaptans and sulphides) in different matrices. Two versions exist : the energyMEDOR ppm which measures at ppm levels and the energyMEDOR ppb which measures at ppb levels. Online analysis and monitoring of sulfur compounds in natural gas.

  • Automatic sampling using a loop
  • Loop injection by automatic valve on the column
  • Isothermal gas chromatograph
  • Detection of all compounds eluting from the column performed by Chromatotec's wet cell sulfur specific detector
  • Signal provided by electrochemical reaction between the wet cell electrolyte and the sulfur compounds

  • Online, continuous sampling
  • No interference from other compounds
  • Low maintenance instrument – detector life may be up to 10 years
  • Automatic Validation of results by Internal Permeation Tube
  • Modifiable threshold alarms – High / Low alarm for odorising processes

Chromatotec developed software system enables :

  • Remote monitoring & injection control
  • Full traceability with on board archiving of results
  • QC Set up and control of threshold alarms
  • Export of data MODBUS / MGS1 / 4-20mA / 0-10V

  • Fully compliant with ASTM D 7493-08 : Standard Test Method for Online Measurement of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatograph and Electrochemical Detection
  • Continuous monitoring with automatic online sampling
  • Analytical performances:
    • Specific and very sensitive to sulfur compounds
    • Results validation by automatic standard injection
    • Long term stability using wet cell detector installed in reservoir
  • Extremely low maintenance
    • Very long life time detector, up to 10 years
    • Low gas consumption, can be reduced in option
    • More than 10 years data storage
    • No cylinders required thanks to internal calibration tube
  • Automatic control with process device
  • Intelligence system with tunable and interactive alarms levels
  • Powerfull VISTACHROM Chromatotec® software:
    • Remote monitoring & injection control
    • Full traceability with on board archiving of results and chromatograms
    • QC Set up and control of threshold alarms
    • Data export by MODBUS / 4-20 mA / 0-10 V
    • Time stamp results

  • Explosion proof Exp box
    • ATEX Zone 2 : Ex II 3G Ex pz IIC T4
    • CSA International Class 1 Div 2, group B, C & D
  • Internal calibration and validation system with permeation tube
  • Multiple stream selector (up to 16 streams with one analyzer)
  • Calculation modules (Average / Statistics / Odor index...)
  • Module 4-20 mA / 0-10 V 4 output and 0 mA for instrument default
  • Electric selection valve to reduce air consumption
  • 24 V DC power supply

  • Detection limits:
    • energyMEDOR® ppm: H2S: 0.1 ppm (0.1417 mg/m3), mercaptans: 0.1 ppm
    • energyMEDOR® ppb: H2S: 5 ppb (7.0 µg/m3), mercaptans: 5 ppb
  • Range (adjustable depending on application): 0/10 or 0/100 or 0/1000 (ppb or ppm)
  • Relative Standard Deviation:
    • RSD < 3 %: on concentration over 48 h
    • RSD < 0.5 %: on retention time over 48 h
  • Cycle Time for the following different analysis:
    • H2S/MeSH 120 s
    • THT 180 s (if only THT)
    • H2S, mercaptans1 600 s
    • H2S, mercaptans2, THT 1800 s
    • Calib during analysis + 200 s
  • Supervisor:
    • Embedded computer Windows® based with LCD display
    • 32 GB of Hardware storage on SSD memory
  • Communication: MODBUS protocol included in standard
  • Gas supply:
    • Carrier: Dry air or N2 (3 bar): < 4 ml/min
    • Use N2 if THT is present
    • Internal calibration: 50 ml/min for ppm range
    • Sample inlet 1 bar
    • Pneumatic valve 90 ml/commutation
  • Power supply: Main: 230 V / 115 V or 50/60 Hz
  • Electrical consumption: Average: 150 VA
  • Dimensions and weight:
    • Rack: 19' (5U)
    • Height: 222 mm
    • Width: 482 mm
    • Depth: 660 mm
    • Net Weight: 22 Kg

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