Global innovation for the level measurement of bulk solids: the first vibrating probe to comply with the NAMUR standard

The chemical industry is faced with the problem of ever-increasing demands and, despite higher demands on safety, the continuous optimisation of the economic efficiency of equipment.

The UWT GmbH offers a solution to this problem in the form of its vibrating fork probe from the proven Vibranivo‚ range of models with its intrinsic-safe 2-wire electronics which work in compliance with the NAMUR standard IEC 60947-5-6. Complying with the NAMUR standard makes it compatible with all standard supply equipment – a global innovation in the field of bulk solids!

Intrinsic-safe connections enable those active in the chemical industry to open and maintain the equipment used even during operation, since the explosion protection takes place via restricted electrical energy. This fact enables the simple and economical designs of the housing. The low amount of wires and the associated cabling advantages make the 2-wire technology convincing.

In further areas of application, 2-wire NAMUR switching signals are used in compliance with the standard ICE 60947-5-6 which combine the advantages of inherently-safe cabling within the 2-wire technology with the advantage of the open standards irrespective of the manufacturer. For a user from the chemical industry, this means that sensors and supply equipment can be run in an intrinsic-safe manner by means of low energy, and that all necessary devices are compatible, irrespective of the manufacturer. The user can choose from any devices freely available on the market to compile an individual solution designed to meet the requirements of his system.

Recommendations by NAMUR present an important guideline for PMC devices which are destined for use in the chemical industry. For the first time, the UWT vibration fork enables a direct connection between a supply device (such as a transformer isolated barrier or control unit) with NAMUR input and remote I/O output).

Further technical specifications of the UWT sensor:

• Freely-selectable characteristics – the switching performance can be directly switched over on the vibrating fork, enabling simple adjustment to the following evaluation devices.

• A “diagnosis” LED provides information on the current oscillating state of the fork – with the aid of this monitoring function, caking and other impediments to the functionality can be prevented by means of early maintenance, and the consistent quality of the measurement is guaranteed.

• The electronics are located behind an observation window – offering both perfect protection and a clear view of the signal state display and the “diagnosis” LED.

• A control button on the electronics enables the function check of the vibration and electronics at any time without the device having to be taken out of the application.

All UWT level meters from the Vibranivo range are available for use in the chemical industry with the newly-developed electronics to comply with the NAMUR standard.

For further information, please visit:

https://edir.bulk-online.com/profile/1974-uwt.htm

Fig. 1:

Vibration level limit switch Vibranivo‚ 2000, NAMUR standard

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