Temperature range and temperature limit for pressure sensors ? is there an improvement? My intuitive answer would 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 with regards 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 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, the instrument specifications do not have to be honored at all.
What may sound a little pedantic, makes perfect sense from a technical viewpoint. This could be illustrated by the following example of a pressure sensor: The instrument is meant to deliver solid measured values at an ambient temperature selection of 0 ? 100 �C. Concurrently, the sensor must not suffer any damage at ambient temperatures between -20 �C and 0 �C. In เกจวัดแรงดัน , 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 comparatively large, often non-linear temperature error. Without further measures, a trusted pressure measurement would be impossible. Therefore, the maker must compensate for the temperature so that you can bring the error right down to an acceptable level. From an economic perspective, the limitation to a selected temperature range is practical, or is even essential.
pressure gauge 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 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 knowledge of standards, understands it intuitively. Which inevitably results in the question of whether you will find a better linguistic distinction. But, I must admit, the answer is outside my ?range?.
Note
More info on our pressure sensors can be found on the WIKA website. Do you wish to buy pressure sensors? You will discover some of our standard designs in our WIKA online-shop. When you have any questions, your contact will gladly help you.
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