Model TC83

Sapphire-design thermocouple

For high-temperature measurements

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    • Sulphur recovery units (SRU)
    • Waste-to-Energy plants (WtE)
    • Processes with high hydrogen sulfide content

Special features

    • Cost saving by non-purge system
    • Reduction of unplanned downtime
    • Increased safety through internal sealing system
    • High process safety with processes up to 1,700 °C [3,092 °F]


This high-temperature thermocouple with a gas-tight sapphire protection tube has been specifically developed for use in hydrogenous atmosphere. Through the monocrystalline structure, the sapphire protects the precious metal of the thermocouple from poisonous toxic media in the aggressive process atmosphere.

Hermetically sealed junctions prevent toxic gases from being able to escape the reactor. The high temperatures in the process place very high demands on protection tubes and thermocouples. These process conditions often lead to shutdowns and interruptions in operation. Utilizing the sapphire design can significantly improve life expectancy of the thermocouple and reduce downtime.

Sapphire-design thermocouple
  • Sapphire-design thermocouple
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