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    LT GasAnalyzer

    Highly performing gas analyzer for measuring the concentration of technical gases based on a thermal conductivity sensor, an infrared sensor a para magnetic sensor or combinations of these sensors. Sensors are precise, robust and have a low cross-sensitivity.

    Our Solution

    Modular system including numerous built-in functions, and is ready for upgrade with multiple options:
    • Extractive online measurement of the concentration of flammable or non-flammable gas components in gas mixtures
    • Response time (T90 time): < 20 seconds
    • Fully automatic operation, with integrated PCS, expandable to be used for a measurement-guided control of devices, such as gas mixers.
    • Low drift sensors w. low cross-sensitivity, for high long-term stability
    • Optionally with automatic calibration, to ensure a constant gas mix quality
    • Reliable, highly sensitive and precise
    • Suitable for installation outside ex-zones
    • At request, tailored configurations to suit individual specifications


    Feel free to ask us or request your quotation.

    foto of a gas analyzer
    Chemical composition of gases
    Chemical composition of a gas

    Thermal conductivity detector, standard gas combinations and ranges:
    (with regard to the admixture gas):

    smallest range
    largest range
    H₂ in N2 or Ar
    0 – 1 Vol.%
    0 – 100 Vol.%
    He in N₂ or Ar
    0 – 1 Vol.%
    0 – 100 Vol.%
    NH₃ in N₂ or Ar
    0 – 20 Vol.%
    0 – 100 Vol.%
    CO₂ in N₂ or Ar
    0 – 5 Vol.%
    0 – 20 Vol.%
    H₂ in CO₂
    0 – 1 Vol.%
    50 – 100 Vol.%


    • Infrared sensor, standard-gases and ranges
      (with regard to the admixture gas):
    smallest range
    largest range
    0 to 1000 Vol.ppm
    0 to 100 Vol.%
    0 to30 Vol.ppm
    0 to 100 Vol.%
    0 to 5 Vol.%0 to 100 Vol.%
    0 to 3000 Vol.ppm0 to 4 Vol.%
    0 to 1000 Vol.ppm0 to 1 Vol.%
    0 to 20 Vol.ppm
    CF₄0 to 2000 Vol.ppm
    • Paramagnetc sensor for O2,
      • smallest range: 0 to10 Vol.%
      • largest range: 0 to 100 Vol.%


    Versatile analysis system comfortable furnished

    Convenient Features

    • Sensor in 19″ 4 height units rack mount chassis
    • Integrated PLC
    • Admits sample gas with a pressure up to 20 bar(g)
    • Displays status messages (min, max, pre-alarm, main-alarm), which are as well provided as potential free contacts on clamps, e.g. to transfer to the control system or to control a lamp stack.
    • Logging of gas pressure and gas flow with 4 configurable analogue inputs
    • Processing of external signals such as acknowledgment or start of calibration over
      12 binary inputs.
    • 2 additional relay outputs, e.g. for gas mixer switchover or control of an solenoid valve for switching-off fuel gas
    • Data recording to SD card or USB memory, e.g. for evaluation with Excel
    • Easy and intuitive operation via 6“ touchscreen
    • Modern graphic color display
    • Multi language, currently DE, EN, FR, ES
    • Password protected program access
    • Exhaustive self-diagnostic functions with messaging
    • Private-label-version possible and configurable according to specifications (housing, program interface, logo, language, etc.)
    • At request customized programs and adjustments for individual applications
    • Open interface architecture

    Several standard options. Individual configurations available upon request.

    Options only in combination with LT gas mixers:

    1. Integration into gas mixer (steel with lockable glassed door)
    2. Gas sampling: Gas pipes and gas connections, monitoring of gas pressure and flow, 5-2-way valve for switching for calibration purposes between measured gas, zero gas and calibration gas
    3. Automatic calibration with additional solenoid valves incl. control for automatic
      switching between measured gas, zero gas and calibration gas

    Further options:

    1. One analogue output for each sample gas component
    2. Larger 7“ touch screen for graphic display of concentration trend with configurable time intervals
    3. USB interface on case front
    4. Evaluation of gas flow measurement (4-20 mA)
    5. Customized integration into plant remote monitoring systems (telemetry) via Modbus TCP / IP, Profibus, CANopen, Ethernet, 4-20 mA, Web Server, FTP Host
    6. Automatic switch-over between gas mixers , or to backup system
    7. Control of an solenoid valve for shutting-off fuel gas flow
    8. Upgrade for outdoor erection
    9. Installation in a wall mounted case (400 x 400 x 200 mm)
    10. Installation in a steel-framed field cabinet, IP65, with lockable glass door wall mounted
    11. LED lights with horn stack, for status indication
    12. Further languages
    13. Status messages in clear text via GSM modem by SMS or E-Mail
    14. Separate printer for documentation of measuring results

    Blog posts on the topic

    TCD multi mode measured gas selection
    Multimode gas measurement with the LT GasAnalyzer
    901 564 Alexander Hanf

    If you are facing the task of measuring multiple binary gas combinations, the LT GasAnalyzer is the right solution. In the menu of the LT GasAnalyzer with TCD sensor, you…

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    LTG GasAnalyzer Mobile
    Mobile gas analyzer with two measurement cells
    878 494 Alexander Hanf

    Mobile Gas Analyzer Our mobile gas analyzer is for field use Our own technicians highly value it because it can be transported and used flexible because it is equipped with…

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    Gas mixer switch-over
    Double redundancy through gas mixer switching with double gas analysis and backup system
    878 494 Alexander Hanf

    A German automobile manufacturer demands special security when it comes to the supply with welding gas. A redundant supply conceptwith two LT gas mixers and a back-up bundle supply is…

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    Hardening kiln: Quality improvement through defined atmosphere supply
    878 494 Alexander Hanf

    By using LT gas mixers tempering kilns for the hardening process are supplied with an atmosphere having a defined methane value. This resulted in a significant improvement in quality of…

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    Do you have a question
    or would you like to receive an individual quotation?
    Please contact us.

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