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thermo-control Körtvélyessy GmbH

Since 1983, thermo-control Körtvélyessy GmbH has been manufacturing Drift-free platinum-rhodium and platinum thermocouples and high-precision oxygen probes for industrial excellence. Discover our Product Portfolio and stay up to date!

As a lean organization, we achieve delivery times that often surprise and delight our customers. We meet our standard delivery time of 2–3 days for custom-made products 95% of the time. Put us to the test and send your Inquiry!

Our Main Products

thermo-control S-type thermocouple with high process reliability

Thermocouples

  • Guaranteed high process reliability
  • Up to a 4-year warranty on the S-Type
  • Separate empty tube for test measurements
  • Complies with the AMS 2750 secondary standard
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thermo-control ceramic oxygen probes for the 480–1300°C range

Oxygen probes

  • High-precision reproduction of the Nernst voltage
  • All-ceramic design
  • Temperature range: 480 °C – 1300 °C
  • No external reference air supply required
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thermo-control Calibration Thermocouple with AMS-2750 Certification

Calibration Thermocouples

  • Compatible with all thermo-control thermocouples
  • Standard lengths: 400 mm – 1500 mm
  • Calibration certificate in accordance with AMS-2750 available
  • Recommended recalibration interval: 10 years
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Product Portfolio

Drift-Free Thermocouples

thermo-control Körtvélyessy GmbH develops and manufactures high-quality PtRh – Pt thermocouples. Our patented design ensures exceptional precision, durability, and reliability. By using thermowires of different diameters, temperature-induced drift is eliminated, resulting in a thermocouple that never drifts.

Plot of stress-strain curves with the same thermowire diameters
Specifications
ΔT NewΔT Year 1ΔT Year 2ΔT Year 3
Positive wire (PtRh10%)+0.0K+1.0K+1.5K+2.0K
Negative Lead (Pt)+0.0K+5.0K+8.0K+10.0K
ΔT = Drift0.0K-4.0K-6.5K-8.0K

Result of a drift measurement at 1240°C using a Type S thermocouple (2 wires, each Ø 0.5 mm)

Plots of stress-strain curves for different thermowire diameters
ΔT NewΔT Year 1ΔT Year 2ΔT Year 3
Positive wire (PtRh10%)+0.0K+1.0K+1.5K+2.0K
Negative Lead (Pt)+0.0K+1.0K+1.5K+2.0K
ΔT = Drift0.0K0.0K0.0K0.0K

Result of a drift measurement at 1240°C using a Type S thermocouple (0.35 mm diameter positive wire and 0.5 mm diameter negative wire)

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