Multiple gas measuring device with infrared sensors – optimised for biogas and landfill gas Multitec 540

Biological processes generate gas compositions that make special demands on measuring equipment.  The robust Multitec® 540 provides the ability to measure six gases simultaneously. The use of infrared measuring techniques for methane and carbon dioxide means that there is no possibility of misleading results due to interaction with other gases. This makes it ideal for use in waste disposal sites, sewage plants and biogas plants. A large display allows all parameters to be displayed simultaneously and quickly read from a single screen. Measurement data is stored in log files and can be transferred without difficulty to a PC over a USB link.

  • Intuitive, menu-driven user interface with jog dial and function keys
  • Large transflective display, very good readability in direct sunlight
  • Selective infrared sensors for hydrocarbons and carbon dioxide
  • Highly durable electrochemical sensors for oxygen and toxic gases
  • Power supplied by four replaceable AA-size rechargeable batteries or disposable batteries
  • Minimum seven hour battery life in operation, rapid charging in four hours
  • Explosion protection: TÜV 07 ATEX 553353 X,  II2G Ex d e ib IIB T4 Gb,
    IIC when used with the TG8 carrying bag
  • PC communication via USB port
  • Supporting bracket for carrying and positioning
  • Low weight (1,000 g) for maximum carrying ease

Gas Measuring range
Sensor type
methane 0,0 – 100% vol. Infrared sensor
Carbon dioxide 0 – 100 % vol. Infrared sensor
Oxygen 0,0 – 25 % vol. Electro-chemical sensor
Hydrogen sulphide 0 – 2000 ppm Electro-chemical sensor
Carbon monoxide 0 – 500 ppm Electro-chemical sensor



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