Temperature range and temperature limit for pressure sensors ? is there an improvement? My intuitive answer will be: Yes! The first term describes a section and the next its border. On second glance, however, I must 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 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 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 in which the instrument specifications must apply ? first of all, the accuracy. The temperature limit, alternatively, indicates the min/max values between which the instrument could be operated without damage. With this particular, the instrument specifications do not have to be honored at all.
What may sound a little pedantic, makes sense from a technical point of view. 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. Simultaneously, the sensor must not suffer any damage at ambient temperatures between -20 �C and 0 �C. In Is Here , however, it 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 actual measuring components, exhibit a comparatively large, often non-linear temperature error. Without further measures, a trusted pressure measurement will be impossible. Therefore, the maker must compensate for the temperature to be able to bring the error down to a satisfactory level. From an economic point of view, the limitation to a selected temperature range makes sense, or is even essential.
The distinction between temperature range and temperature limit pertains to both the ambient temperature and the medium temperature. Additionally it is useful for other specification characteristics, for instance overpressure.
Conclusion
Yes, there is a difference between range and limit in the normative world of pressure sensor technology. And yes, it makes technical sense. However, I doubt if the normal user, without knowledge of standards, understands it intuitively. Which inevitably leads to the question of whether you will find a better linguistic distinction. But, Under Priced must admit, the answer is outside my ?range?.
Note
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