Compact vibration level switch VibraFox GVG: 
VibraFox GVG is a point level sensor with tuning fork for level detection. It is designed for industrial use in all areas of process technology and can be used in liquids. Suitable for detecting levels in liquids with a maximum viscosity of 10,000 mm2/s and a minimum density of 0.7 kg/dm2.
Typical applications are overfill and dry run protection. With a tuning fork of only 40 mm length, VibraFox GVG can be also mounted, e.g. in pipelines from DN 32. The small tuning fork allows use in vessels, tanks and pipes. Thanks to its simple and robust measuring system, VibraFox GVG is virtually unaffected by the chemical and physical properties of the liquid.
It functions even under difficult conditions such as turbulence, air bubbles, foam generation, buildup, strong external vibration or changing products.
The tuning fork is piezoelectrically energized and vibrates at its mechanical resonance frequency of approx. 1200 Hz. The piezos are fixed mechanically and are hence not subject to temperature shock limitations. The frequency changes when the tuning fork is covered by the medium. This change is detected by the integrated electronics module and converted into a switching command.
VibraFox GVG 11, 12, 14 (transistor PNP): If a malfunction is detected or in case of power failure, the electronics takes on a defined switching condition, i.e. the output transistor blocks (safe condition).
VibraFox GVG 10, 13 (with contactless electronic switch): If a malfunction is detected or in case of power failure, the electronics takes on a defined switching condition, i.e. the contactless electronic switch opens (safe condition).
