thermo-control Körtvélyessy GmbH
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Calibration

Thermoelement

All thermoelement have the common design feature that they do not drift. However, quality assurances of high risk segments, such as aviation or automobile, demand a regular verification of the thermocouples.

Usualy these calibration measurements are done by a third party, neglecting the in-house resource in combination the thermoelement, which allows a calibration measurement within production. Also your furnace temp distribution is much more homogenius than any other small calibrational furncae (which is usulally a small tube heated furnace with min 3 zones)

Therefore we suggest to make the calibration measurements in-house. thermo-control provides special verification thermocouples which fits into any thermoelement. As the measurement takes place during production, you will not suffer loss of time and money.

Kalibrierkurve (für Vergrößerung Bild anklicken)

The image above shows the calibration curve of a 8 year old thermoelement. The maximum deviation was 0,25%.

is also capable to perform the measurement at your site. Should this measurement reveal a deviation of more than 0,5% then we will replace the thermoelement by a new one regardless of its age. This special on-site warranty is of course only valid for thermoelements and which are undamaed/unchanged.

Oxygen probes

oxygen probes are commonly known to be very tough and durable. However it may occur that a wrong carb-level is measured or that the probe does not reach the desired voltage. We can check the probe by heating it up to 850°C and fill a special gas mixture into the reference air system. After a periode of time the gas is shut down and the voltage/time graph is stored.

Messverlauf einer Sauersoffsonde

Due to this diagram we can determine first hints for the fact finding in comparison to other reference diagrams.