Test & measurement
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track record for reliability in thousands of applications across the demanding chemical and oil and gas sectors.
the well-proven ability of non-invasive temperature measurement devices to transform almost any pipe containing turbulent fluids into a reliable sensor quickly and easily is driving increased uptake across industrial processes...
changing ambient conditions can have an impact on the relationship between the two temperatures, so any variation must be factored in – especially in applications that demand a high degree of accuracy. NINVA’s solution is based on a twin-sensor design, with one measuring the temperature at the surface of the pipe, while the other measures the ambient temperature. An algorithm integrated into the transmitter firmware uses these measurements to compensate for ambient effects and calculate an accurate temperature measurement. The resulting accuracy is in line with that of a traditional invasive device. If a potential user is still unsure that a NINVA is right for their application, the
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performance can be accurately modelled before they even order the device. By combining data on the operating conditions with models that predict the behavior of fluid media flowing in turbulent regimes in metal pipes, the accuracy and responsiveness can be predicted with a high level of certainty. This model-based approach can also provide a useful “check tool” to verify measurements once the device has been installed.
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HOW RELIABLE ARE THESE SENSORS? IS IT PROVEN TECHNOLOGY?
ABB launched NINVA temperature sensors in 2018 and they have since built up a strong
The technology has also continued to improve following feedback from existing users. NINVA is the first clamp-on non- invasive temperature sensor fully assessed to the IEC61508 standard and meets the requirements for SIL2. The latest generation includes easy setup, with push-button programming that can eliminate the need for an engineer to carry out often complex device setup. Configuration of NINVA is just a case of setting the desired temperature range and continues the ABB drive for measurement made easy. They’re increasingly versatile too, with the latest models offering an extended temperature range up to 550°C for use with superheated steam and clamps to fit smaller pipe diameters. Future developments are likely to see many more companies transforming the way they monitor processes involving an increasing range of flow regimes and fluids with more complex heat transfer behavior. Already, the well-proven ability of non-invasive temperature measurement devices to transform almost any pipe containing turbulent fluids into a reliable sensor quickly and easily is driving increased uptake across industrial processes.
ABB
www.abb.com October 2024 Instrumentation Monthly
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