Temperature range and temperature limit for pressure sensors ? is there an improvement? My intuitive answer will be: Yes! The initial term describes a section and the second its border. On second glance, however, I have to conclude that both words ultimately express a similar thing with regards to temperatures: Range and limit are defined by way of a lower and upper value, for instance 0 ? 100 �C. The relevant standard nevertheless defines an improvement. Why?
IEC 61987 speaks of two different specification characteristics
The standard described is IEC 61987. This deals, among other activities, with the properties of fluid sensors, which also include pressure sensors. With ?range? and ?limit?, the typical designates two different specification characteristics. Accordingly, the temperature range describes the span where the instrument specifications must apply ? first and foremost, the accuracy. The temperature limit, alternatively, indicates the min/max values between which the instrument may be operated without damage. With this particular, the instrument specifications do not have to be adhered to at all.
What may sound a little pedantic, makes sense from a technical viewpoint. This could be illustrated by the next exemplory case of a pressure sensor: The instrument is supposed to provide solid measured values at an ambient temperature selection of 0 ? Tank �C. Concurrently, the sensor should never suffer any damage at ambient temperatures between -20 �C and 0 �C. In this range, however, it generally does not need to provide accurate measuring results, or even measure.
The difference between temperature range and temperature limit is plausible
This sounds paradoxical initially, but is plausible on closer inspection. Pressure sensor elements, i.e. the specific measuring components, exhibit a relatively large, often non-linear temperature error. Without Superb , a reliable pressure measurement would be impossible. Therefore, Irs must compensate for the temperature so that you can bring the error right down to a satisfactory level. From an economic point of view, the limitation to a selected temperature range is practical, or is even essential.
The distinction between temperature range and temperature limit applies to both ambient temperature and the medium temperature. It is also used for other specification characteristics, for instance overpressure.
Conclusion
Yes, there exists a difference between range and limit in the normative world of pressure sensor technology. And yes, it creates technical sense. However, I doubt whether the normal user, without knowledge of standards, understands it intuitively. Which inevitably leads to the question of whether there is a better linguistic distinction. But, I have to admit, the answer is outside my ?range?.
Note
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