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.
Powering sub-Saharan Africa’s energy future VEGA Controls SA
Level Measurement & Control
Crude oil storage plays an important role in the energy infrastructure of sub-Saharan Africa. The management of crude oil storage in comes with numerous challenges, including safety concerns, environmental conditions and infrastructural limitations.
Read more...A fresh approach to dairy processing VEGA Controls SA
Level Measurement & Control
Ensuring the quality and safety of milk throughout the production process is of the utmost importance in the dairy industry. The VEGABAR pressure transmitters are suitable for hygienic applications. They are an asset in the dairy industry and have been used with success for measuring the milk level and the process pressure in storage tanks.
Read more...Pulp fiction or pulp precision? VEGA Controls SA
Sensors & Transducers
The density of fruit concentrate has a direct impact on the flavour, texture and overall quality of the final product. The VEGA Minitrac 31, VEGASOURCE 31, and the KV 31 mounting bracket present a failproof solution that effectively addresses the technical complexities associated with high temperature, viscosity and fouling.
Read more...Differential pressure measurement in gas extraction and power generation project VEGA Controls SA
Pressure Measurement & Control
Methane exploration and extraction in Lake Kivu in the East African Rift Valley has primarily focused on gas composition analysis. The VEGABAR 82 pressure transmitter was used for differential pressure measurement, the key to monitoring gas levels within the lake.
Read more...Don’t buckle under pressure VEGA Controls SA
Pressure Measurement & Control
In Africa, urban populations are increasing and infrastructure is expanding at an unprecedented pace. This makes sustainable water management and treatment more crucial than ever. By investing in VEGA pressure instrumentation, water utilities and municipalities are equipping themselves with pressure sensors that facilitate sustainable water management focused on efficiency, reliability and resilience.
Read more...Playing autoclave roulette VEGA Controls SA
Sensors & Transducers
Autoclaves ensure the sterility of medical and pharmaceutical products before reaching healthcare providers and their patients. To effectively manage these demanding conditions, VEGA provides reliable solutions, specifically the VEGAFLEX 81 and VEGABAR 83 sensors, which are designed to meet the stringent requirements of autoclave operations.
Read more...VEGA handles the pressures of water treatment systems VEGA Controls SA
Pressure Measurement & Control
A water treatment system for a major metropolitan area in the Midwestern United States demands careful monitoring and management of processes across its sprawling network. Choosing VEGA for its process automation needs meant more than just obtaining precise and reliable pressure sensors.
Read more...VEGA fights incorrect measurements VEGA Controls SA
Editor's Choice
VEGA’s 80 GHz radar sensors, with their 120 dB dynamic range, ensure full visibility in all process conditions, overcoming interference and obstacles that standard sensors find challenging.
Read more...Precise process and maximum savings with VEGABAR VEGA Controls SA
Flow Measurement & Control
Accurate measurementsof differential pressure is crucial for safety, efficiency and optimising operational processes. For over 40 years, VEGA has supplied industry-leading pressure measurement solutions, establishing itself as a trusted expert with a proven track record in sensor technology.
printer friendly version