Damaged or cracked metal diaphragms are one of the most frequent causes of failure in pressure transmitters. The result is that the isolating diaphragm liquid, which serves as a transmission medium between the separating diaphragm and sensor element, leaks into the process. The fault may not even be noticed by the sensor electronics, since the product itself also exerts a measurable pressure on the sensor. The exact time of damage can therefore not always be determined.
The isolating diaphragm liquids used are generally subject to FDA regulations and are not harmful to health. For the plant operator, however, they represent a product quality risk. The implemented transmission oils do not mix well with the water-based pharmaceutical products – serious contamination is sometimes the result.
The pressure transmitters with ceramic-capacitive Certec measuring cell from Vega offer a solution for these quality and validation processes. The ceramic measuring cell works without transmission liquid and ideally satisfies all requirements of the pharmaceutical industry. The measuring cell is dry, self-monitoring and registers both damage to the diaphragm and moisture leaking into the sensor.
The diaphragm, which consists of sapphire ceramic, is 10 times harder than high-grade steel and easily resists abrasive media. The diaphragm and ceramic body are joined together with a glass solder, allowing constant product temperatures up to +150°C. The design is completed by a sophisticated sealing concept, depending on process requirements a double seal, or a hygienic form, can be implemented. High surface finish provides optimal cleaning and sanitation.
Water under pressure VEGA Controls SA
Pressure Measurement & Control
The need for real-time monitoring and precise control over water distribution has never been more critical. VEGA’s range of pressure sensors and level instruments plays an important role in ensuring that water systems operate efficiently.
Read more...Precision in paper processing VEGA Controls SA
Editor's Choice Level Measurement & Control
Paper manufacturing is a demanding process that relies on consistency, precision and control at every stage. The VEGABAR 82 pressure transmitter is well-suited to these harsh environments.
Read more...VEGA’s Lunch-and-Learn success in KZN VEGA Controls SA
News
VEGA has rolled out its new Lunch-and-Learn series to the coastal regions of South Africa, designed to bring practical training and real-world insights directly to engineers and technicians.
Read more...Where every grain counts VEGA Controls SA
Level Measurement & Control
VEGA’s advanced level and pressure measurement solutions offer transformative technologies to improve grain storage management in sub-Saharan Africa.
Read more...Paper might carry the message, but pressure carries the process VEGA Controls SA
Pressure Measurement & Control
VEGABAR pressure transmitters are designed to address the unique challenges faced by the pulp and paper industry. Built for durability and precision, they ensure reliable pressure monitoring in aggressive environments.
Read more...Capsules, steam and cream VEGA Controls SA
Pressure Measurement & Control
African cosmetic brands are increasingly outsourcing production to specialised contract manufacturers who use automation and high-precision tools to ensure quality and adapt quickly to regulatory changes. VEGA’s suite of level and pressure measurement solutions offers a robust foundation for profitability and quality assurance.
Read more...Differential pressure measurement made simple VEGA Controls SA
Pressure Measurement & Control
The VEGADIF 85 serves as an exemplary model of a differential pressure sensor. It combines universal applicability with high operational dependability and integrated overload protection, ensuring consistent performance even in the harshest conditions.
Read more...Smart pressure monitoring drives energy efficiency ifm - South Africa
Pressure Measurement & Control
The ifm PG17 electronic pressure gauge is part of the company’s next-generation PG series. It integrates IO-Link technology, enabling seamless, loss-free data transmission via a 24 V signal.
Read more...Small, inexpensive radar level transmitters VEGA Controls SA
Level Measurement & Control
Anyone who needs to keep processes running needs level measurement technology that measures reliably. However, what is needed is not always the most ‘fully featured’ solution, but the smartest one. This is exactly what VEGAPULS radar transmitters of the BASIC series do.
Read more...Electronic manometer with LED display ifm - South Africa
Pressure Measurement & Control
The new generation of PG type manometers are equipped with IO-Link and modern display units. Illuminated LED markings provide a quick overview of the current measured value. In addition to the various setting options for the display unit, IO-Link offers other advantages such as easy commissioning, quick sensor replacement and remote access options.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version