Thermocouples themselves are not typically calibrated in the traditional sense. Instead, calibration is primarily performed on the electronics that interpret the thermocouple’s voltage signal.
How Thermocouple Calibration Works
- A thermocouple generates a voltage based on temperature, which is then interpreted by a measuring device, such as a signal amplifier, digital readout or data acquisition system.
- Calibration ensures that the electronics accurately interpret the thermocouple’s output voltage at known temperature points.
- Adjustments are made to the instrumentation, not the thermocouple itself.
What If My Thermocouple Is Inaccurate?
- If a thermocouple is suspected of providing incorrect readings, the first step is to verify the measurement setup, including connections and wiring.
- If inconsistencies persist, the measuring equipment can often be recalibrated to correct any interpretation errors.
- However, if the thermocouple itself has drifted or degraded over time, it may need to be replaced rather than adjusted.
Do You Need a Replacement?
If your thermocouple is consistently inaccurate and calibration adjustments do not resolve the issue, contact us for assistance in selecting a suitable replacement!