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19″ NDIR Gas analyser GA3XX

19″ NDIR Gas analyser GA3XX

Gas Analyzer 3xx (GA3xx)

The gas analyser has been developed and designed for the fast and easy online measurement of IR-active gases. It allows the measurement of gases in gas mixtures with very low detection limit where no further disturbances are to be expected.

The gas analyser can be integrated into any control system and meets all legal-, technical-, safety- and controlrelated requirements. The gas analyser is available in multiple versions for various gases!


  • NDIR-based detection with up to six detectors
  • Six internal measuring points
  • Advanced sensor electronics with increased signal resolution for the lowest detection limits
  • Supports heated supply lines for condensed gases
  • Long-term calibration stability (patented)
  • Analog and digital output protocols available
  • Protected data logging available
  • Touchscreen interface via large 7″ WVGA color display
  • UV-based detection upon request


  • Directly measured value display
  • Measuring principle NDIR
  • High long-term stabilities
  • Easy calibration complexity
  • Low costs for maintenance/service
  • Transportable

Fields of applications:

  • Chemical
  • Recycling
  • Environmental
  • Monitoring
  • Verification
  • Pharmaceutical
Michel de Ruiter | Multi Instruments


If you have any questions, do not hesitate tot contact us.


Measuring range 5 ... 300 g/m³ depending on gas type
Measuring principle NDIR / NDUV / Elektrochemical
Ambient temperatures +5° ... +45°C
Interfaces Standard RS-232
Optional: RS-485 (Profibus DP), Ethernet (Modbus TCP / Ethernet IP), Profinet
Protection class IP20
Supply voltage 230V AC / 50 Hz
Analogue outputs 4x 4 ... 20mA
Programmable & galvanically isolated
Digital outputs 2 relay contacts: Ready / Fault
4 relay contacts: max. 48V / 500 mA
Digital inputs 6 inputs: 24V AC / DC
Detection limit: < 2% of measured value, 2 = 0,5 mg/m³
Heat up time max. 20 min. (at 20°C)
Dimensions (H x W x D) 132.5 x 483 x 400mm
Display 7” (840 x 640 pixels) touchscreen, Windows CE 5.0 R3
Max. flow 4 l/min


Michel de Ruiter | Multi Instruments


If you have any questions, do not hesitate tot contact us.