Temperature range and temperature limit for pressure sensors ? will there be a difference? Completeness would 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 in relation to temperatures: Range and limit are defined by 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 referred to is IEC 61987. This deals, among other things, with the properties of fluid sensors, which likewise incorporate pressure sensors. With ?range? and ?limit?, the standard 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, however, indicates the min/max values between that your instrument may be operated without damage. With this, the instrument specifications don’t need to be honored at all.
What may sound a little pedantic, makes sense from a technical perspective. This is often illustrated by the following example of a pressure sensor: The instrument is meant to deliver solid measured values at an ambient temperature range of 0 ? 100 �C. As well, the sensor should never suffer any damage at ambient temperatures between -20 �C and 0 �C. In this range, however, it generally does not have to provide accurate measuring results, as well as measure.
The difference between temperature range and temperature limit is plausible
This sounds paradoxical at first, 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 Sure , a reliable pressure measurement would be impossible. Therefore, the maker has to 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 absolutely necessary.
The distinction between temperature range and temperature limit applies to both ambient temperature and the medium temperature. Additionally it is useful for other specification characteristics, for instance overpressure.
Conclusion
Yes, you will find a difference between range and limit in the normative world of pressure sensor technology. And yes, it creates technical sense. However, I doubt if the normal user, without understanding of standards, understands it intuitively. Which inevitably leads to the question of whether there is a better linguistic distinction. But, I must admit, the solution is outside my ?range?.
Note
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