Temperature range and temperature limit for pressure sensors ? will there be an improvement? My intuitive answer would be: Yes! The first term describes a section and the second its border. On second glance, however, I have to conclude that both words ultimately express the same thing in relation to temperatures: Range and limit are defined by way of a lower and upper value, for example 0 ? 100 �C. The relevant standard nevertheless defines a difference. Why?
IEC 61987 speaks of two different specification characteristics
The standard referred to 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 in which the instrument specifications must apply ? first of all, the accuracy. The temperature limit, however, indicates the min/max values between that your 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 bit pedantic, makes sense from a technical point of view. This is often illustrated by the following example of a pressure sensor: The instrument is supposed to provide solid measured values at an ambient temperature range of 0 ? Lighthearted �C. At the same time, 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, 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 further measures, a reliable pressure measurement would be impossible. Therefore, the manufacturer must compensate for the temperature as a way to 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 pertains 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, Paralyzed creates technical sense. However, I doubt if the normal user, without knowledge of standards, understands it intuitively. Which inevitably results in 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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