TCD specially developed for GC applications

List Price:    On request

If you are not sure whether this unit is suitable for your application, please do not hesitate to contact us for further information

Measurement principle

The detector is based on continuous thermal conductivity measurement of gases with MEMS sensors developed by Archigas.

Easy use and maintenance

  • no additional electronic control by the operator
  • plug-and-play style
  • reference channel and additional adjustment for different carriage gases not required
  • switching to a different carrier gas requires only a mathematical conversion to a new zero value
  • TCD 3000 GC- OEM is a unique gas detector, based on the principle of thermal conductivity allows a precise analysis with a very low detection limit.
  • The unique in-house developed TDC MEMS (Micromechanical thermal conductivity sensor) allows GC measurements without a reference channel. Based on decades of experience, this NASA-proved gas detector is able to distinguish between carrier gas and analyte and mathematically process the measurement without the need of a reference gas signal. The worldwide matchless sensitivity detection limit is up to 0.5 ppm.
  • The connection to the PLC is realized by a RS-485 interface. An exceptionally small chip size makes the detector suitable for various GC applications. A rapid start-up is provided due to the fast heating up of the sensor at the start. The output can be set as V/(m-K), or W/(m-K). The retention time, height and area of the peaks allow conclusions to be drawn about the analyte.


  • Fast: t90 < 0.5 s
  • Miniature: W=56mm, H=36mm, D=30mm;
  • High stability < 100 ppm per week*
  • High sensitivity: <0.5 ppm a week*
  • Easy to use


  • Precise analysis of thermal conductivity of probe
  • Very low noise < 1 ppm*
  • Very High Dynamic Range: 106
  • Concentration: 20 ppm to 100% level
  • Single Filament
  • Detection limits < 1 ppm*
  • *All data refer to 0.5 vol% H2 in N2


  • Control and signal reading via RS-485
  • TTL 3.3 V


  • Dimensions without tubes ( W x H x D in mm): (46 x 20 x 26)
  • M10 thread inside
  • Tubes on request
  • Protection class: IP00
  • The product TCD3000GC-OEM does not meet EMC requirements itself. Therefore, proper shielding and housing has to be performed by customer.
  • Technical Details
  • Accessories
  • Downloads
  • More Information
  • Options
  • Gas Types

Technical Details






More Information

Please note that the unit will only hold its full specifications after reaching 70°C.

High stability due to thermostatization of the system at 60 °C



Gas Types



For any further questions or quotes please do not hesitate to contact us using the contact form or contact information below.


phone : +49 (0)69 247544980

e-mail:   [email protected]

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