Calibration plays an important role in monitoring accurate temperature measurements. Although calibration is not required by law for temperature sensors, there are guidelines in the pharmaceutical and healthcare industries that recommend periodic calibration. In this article, we explain exactly what calibration entails, what options are available, and how you can ensure an efficient approach.
Calibration explained: how does it work and what do you need to know?
A clear explanation of calibration, its features and what to look out for.
What is calibration?
Calibration is the process of determining the deviation of a sensor by comparing it to a reference sensor. This comparison is done according to established standards, such as those set by the Dutch Accreditation Council (RvA). In modern systems, correction values are often settled digitally, so the sensors provide accurate data instantly.
If a measuring instrument can be manually adjusted to correct deviations, we do not call it a calibration but a justification. When calibration is required by legislation, such as for measuring instruments in trade environments, we call it a calibration. For temperature sensors, calibration is not applicable, but guidelines such as GDP/GMP do recommend regular calibration.
Calibration options: 1-point or multiple points
In practice, when calibrating, you have a choice between a 1-point calibration or a calibration over multiple points or ranges. In a 1-point calibration, the sensor is calibrated to the temperature at which it is typically used. This is a cost-effective and reliable option for environments with stable temperature drift, such as conditioned rooms.
Calibration over multiple points can be useful in situations where large temperature differences occur, such as in environments with extreme fluctuations. However, keep in mind that this method is often more expensive and time intensive.
What should you pay attention to?
When choosing a calibration method, it is important to evaluate your needs and applicable guidelines. In addition, note:
- Whether the calibration body meets RvA standards.
- The contents of the calibration certificate: serial number, measured values, established deviation and measurement uncertainty.
- Whether the calibration fits the way you use the sensor.
How does Dyzle help?
At Dyzle, we offer flexible calibration options to suit your situation. Our 1-point calibration is designed to be simple and cost-effective, without compromising accuracy. Plus, calibration certificates are always available in your online environment, along with calibration history. For sensors used outside their working temperature, we recommend a multi-point calibration.
Avoid surprises in calibration
Many different stories circulate when it comes to calibration, ranging from marketing claims to complex technical terms. We advise you to always look critically at the content and methodology of a calibration. Choose a reliable partner that offers you transparency and goes along with your requirements.
Want to learn more about calibration or have questions about the right approach for your temperature sensors? If so, please contact us.
