Temperature range and temperature limit for pressure sensors ? is there an improvement? Skill will be: Yes! The first term describes a section and the next 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 example 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 things, with the properties of fluid sensors, which likewise incorporate pressure sensors. With ?range? and ?limit?, the typical designates two different specification characteristics. Accordingly, Sensational 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 that your instrument could be operated without damage. With this particular, the instrument specifications don’t need to be honored at all.
What may sound a bit pedantic, makes perfect sense from a technical point of view. This is often illustrated by the following exemplory case 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 must not 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, and 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 comparatively large, often non-linear temperature error. Without further measures, a reliable pressure measurement will be impossible. Therefore, the maker has to compensate for the temperature so as to bring the error down to an acceptable level. From an economic perspective, 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 used for other specification characteristics, for example 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 whether the normal user, without understanding of standards, understands it intuitively. Which inevitably results in the question of whether there exists a better linguistic distinction. But, I have to admit, the answer is outside my ?range?.
Note
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