THT MEDOR

Technical Specifications

THTmedor - Online analysis & control of gas odorisation
  • Detection limits:
    • ppm Model – 1 mg/m3
    • ppb Model – 0.3 mg/m3
  • Detection range:
    • ppm model – 1 to 50 mg/m3
    • ppb model – 0.3 to 3.0mg/ m3(Ranges adjustable depending on Application)
  • Relative Standard Deviation:
    • RSD < 2 % on concentration over 48H
    • RSD < 0.6% on retention time over 48H
  • Results:
    • Embeded computer Windows® based with LCD display
    • 128 GB of Hardware storage on SSD memory
  • Linearity:
    • 0.995 for all compounds
  • Cycle time:
    • THT and TBM 180s (for one stream)
    • THT and TBM 240s to 300s (for multi stream)
  • Gas supply:
    • Carrier Gas: N2 (3 bars): 10 ml/min
    • Internal calibration: 50 ml/min (if selected)
    • Sample inlet 1 bar (160 ml/min)
    • Pneumatic valve 90 ml/commutation

Odor measurement (THT)

Online analysis & control of gas odorisation

Description :

THT Medor is an online Gas Chromatograph dedicated to the analysis of THT present in different gases.
Two versions of the instrument exist : 

  • THT Medor ppm (measuring at ppm levels)
  • THT Medor ppb (measuring at ppb levels)

Principle :

  • Internal pressure & temperature monitoring
  • Sample loop injection is made by automatic valve
  • THT Medor uses a sulphur specific electrochemical cell for the detection of THT

Features :

  • 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

VISTACHROM ® software : 
 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

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