Intelligent Fixed Gas Detector for Hydrogen Applications - MultiTox DG7 Series

Teledyne Gas & Flame Detection

  • Intelligent fixed gas detector that employs a wide choice of sensor types.
  • Available in different variants for different applications
  • Ease of operation and maintenance
  • Integral daylight readable alphanumeric display
  • Display color is status dependent
  • On board relays
  • Various accessories also available

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​Intelligent fixed gas detector for hydrogen applications - MultiTox DG7 Series

  • The fixed gas detector DG7 Series is a group of intelligent gas detectors that employs a wide choice of sensor types.
  • It has the following variants:
    • The DGI -TT7-E is used for Toxic gases or Oxygen monitoring.
    • The DG-TT7-S is a solid-state metal oxide semiconductor.
    • The DG-TX7 employs a pair of OXYCOL catalytic sensors​.
  • The DGi-TT7-E is a MultiTox fixed gas detector is:
    • based on a transducer with electrochemical cell, which requires oxygen to function properly. The measuring principle is based on a redox reaction.
    • In the event of a long period without oxygen, the measurement will not be representative of gases or vapours concentration.
    • The characteristics of the device can also be altered by exposures to high concentrations or by extended periods in hot and dry atmosphere.
  • The DGi-TT7-O is a MultiTox fixed gas detector:
    • is based on a transducer with electrochemical cell. The measurement range is expressed in %vol O2.
    • The measuring principle is based on one of the principle of the oxygen cell.
    • Characteristics of the device can also be altered by exposures to extended periods in hot and dry atmosphere.
  • The DG-TT7-S is a MultiTox fixed gas detector:
    • is based on a transducer with semi-conductor cells, which requires oxygen to function properly.
    • It is used mainly for hydrogen sulphide detection in difficult industrial environment.
    • The measuring principle is based on oxidation and adsorbing reactions on films surface of heated semi-conductor.
  • All DGi-TT7 are constructed from a common housing and electronics with the detection properties being determined by the type of sensor (cartridge) used.
  • A wide range of cells are available which are intrisically safe protected, and may be replaced with the detector powered which minimizes the system down time.
  • The intelligent, microprocessor driven unit is fully configurable using a wireless hand-held terminal (TLU) or by using the hard wired HART option giving true flexibility to the installer and reduced service costs.
  • Elements such as relay operation and alarm levels are all set via the TLU, a hazardous area approved hand-held unit.
  • The unit may be interfaced directly with a wide range of panels, controllers and PLC’s etc.
  • Its integral daylight readable alphanumeric display indicates local status and alarm level.
  • The device has been designed for ease of operation and maintenance.​​

Key features

  • Intelligent fixed gas detector that employs a wide choice of sensor types.
  • It has following variants:
    • The DGI -TT7-E is used for Toxic gases or Oxygen monitoring.
    • The DG-TT7-S is a solid-state metal oxide semiconductor.
    • The DG-TX7 employs a pair of OXYCOL catalytic sensors​.
  • Ease of operation and maintenance
  • Integral daylight readable alphanumeric display
  • High visible display
  • Display color is status dependent
  • On board relays

Intelligent Fixed Gas Detector for Hydrogen_21  

General dimensions for MultiTox Fixed Gas Detector

Application areas

  • Refineries
  • Offshore drilling and production platforms
  • Processing and storage plants
  • Chemical plants
  • Storage of toxic products
  • Monitoring of processes with toxic products
  • Oxygen detection in inert atmosphere (DG-TT7-O)

Contact us

  • With more than 100 years of experience, Teledyne Gas And Flame Detection is a global leader in flame and gas detection systems. Interested? Please contact the vendor by filling in the contact form or RFQ form.
Brand Teledyne Gas and Flame Detection
Ingress Protection Rating IP66
Manufacturing Readiness (MRL) 0
Technology Readiness (TRL) 0
Compliant with ATEX, IECEx, SIL 2
Max Ambient Temperature (in °C) 20
Min Ambient Temperature (in °C) 5
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