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Why Instrument Calibration is Important

Why Instrument Calibration is Important

Calibration is a comparison between two devices, where one device is the instrument that requires calibration and the other is the reference probe that defines the accuracy. Instrument calibrations are performed to ensure the accuracy of measuring devices, such as thermocouples and/or wireless data loggers, by using a temperature reference sensor, which is a pt100 reference instrument. Every measuring device drifts over time, due to normal wear and therefore require regular calibrations. RTD sensors are more stable than thermocouples and therefore tend to drift less, whereas thermocouples drift more over time. Regardless of drift tendencies, it is important that calibrations are performed to ensure a consistent quality of the manufactured products and confirm that the gathered data through e.g. validation activities, are reliable. When calibrating the sensors, their readings are compared with readings from the temperature reference sensor, while they remain in stable conditions within a liquid bath or dry block.

The Necessity of Regular Calibration

The regularity of the required instrument calibrations depends on the application and environment, as harsher environments cause faster sensor drifts, than a milder environment would. Measuring accuracy also plays an important role when defining the necessity of a calibration. The more precise and specific the measuring parameter is, the more important it is to calibrate. Instrument calibration should always be a regular or planned part of the standard operational procedure (SOP), as it can have a crucial impact on the result if the sensor is not measuring correctly, even at very small deviations. In many manufacturing processes, a small temperature deviation percentage, will have serious consequences in the sterility and quality of the product, ultimately resulting in lost batches and wasted costs.

The Advantages of Regular Calibration

Even though instrument calibration can seem like a time-consuming part of the manufacturing process, it is important to note that the process cost and time can be reduced, as the result will be more precise and the process more efficient. Therefore, implementing some degree of instrument calibration is highly recommended in any process and industry.


What Ellab offers:

Ellab Calibration Service

Ellab Calibration Instruments

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