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Not the same: temperature range and temperature limit

Temperature range and temperature limit for pressure sensors ? is there an improvement? pressure gauge will be: Yes! The first term describes a section and the second its border. On second glance, however, I must 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 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 also include pressure sensors. With ?range? and ?limit?, เพรสเชอร์เกจ designates two different specification characteristics. Accordingly, the temperature range describes the span in which 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 do not have to be adhered to at all.
What may sound a bit 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. Simultaneously, the sensor should never suffer any damage at ambient temperatures between -20 �C and 0 �C. In this range, 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 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 further measures, a trusted pressure measurement would be impossible. Therefore, the maker has to compensate for the temperature to be able to bring the error right down to an acceptable level. From pressure gauge octa 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 makes 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 exists a better linguistic distinction. But, I must admit, the answer is outside my ?range?.
Note
More info on our pressure sensors are available on the WIKA website. Do you wish to buy pressure sensors? You will find a few of our standard designs inside our WIKA online-shop. For those who have any questions, your contact will gladly assist you to.
Also read our posts
What does temperature compensation or compensated temperature range for pressure sensors mean?
Active and passive temperature compensation of pressure sensors
Temperature coefficients (TC) of pressure sensors

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