Feature sponsored by Flow, level & control
measuring cell is also a dry cell without any oil filling, which minimises any contamination risk. The VEGABAR 29 is the standard pressure sensor used for tangential flow filtration systems (TFF), i.e. in the downstream applications of biotechnological processes. The sensor monitors the TMP (Trans Membrane Pressure), a critical process value for efficient filtration. This process parameter is the average pressure of the inflowing material on the permeate side of the diaphragm. TECNIC's tangential filtration system (TFF) is fully automated, so that the TMP can be pre- defined and the process is controlled using retentate valve. Although the capacitive rod probe
VEGACAL 62 is only used occasionally by the company, it is very much appreciated in the components with CIP (Cleaning in Place) because of its high chemical resistance. It measures the level continuously there. VEGAFLEX 81, on the other hand, is used more frequently at various points in the processes, for example to measure the level in the tangential flow filtration tanks. It delivers reliable measured values, which are an absolute must for tank regulation. The level switches VEGAPOINT 11 and VEGAPOINT 23 are used to monitor the level wherever the standards of ASME-BPE, EHEDG or GMP have to be complied with, for example
the pump operation. These sensors can also handle the sterilisation processes as well. Thanks to their universal connections for hygienic adapters, they are quick and easy to install. Moreover, the sensors can be deployed without calibration or adjustment. The compact radar sensor VEGAPULS 21, which can also withstand CIP processes up to 80 °C, is used for non-critical volume monitoring that requires no direct contact with the medium. If non-contact level sensing needs to be made with higher accuracy and hygiene compliance, it is time to deploy the VEGAPULS 64 radar levcel sensor, which is ideal for measuring various critical volumes in the processes. This 80-GHz radar sensor, which is designed for continuous level measurement of liquids, is perfectly suited for applications with SIP processes. And, last but not least, the
vibrating level switches VEGASWING 51 and VEGASWING 61 are also installed in the bioprocessing systems, especially in areas where the ASME-BPE, EHEDG or GMP specifications do not apply.
SERVICE AND SUPPORT VERY MUCH APPRECIATED “We especially appreciate the reliability of VEGA sensors. But the service and above all the worldwide technical support VEGA provides are also very important to us, because we sell our bioprocessing systems on the international market,” explains Estany. He and his colleagues are convinced that the Bluetooth connectivity of the sensors is one of the most outstanding features. “The wireless connection for the
adjustment and monitoring of devices is extraordinarily useful for commissioning and
verification. It also allows us to identify errors and discrepancies much more quickly in our day- to-day work,” says Estany, pointing to his own experience in conclusion.
VEGA Controls
www.vega.com
Instrumentation Monthly September 2022
47
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