#Product Trends
Overfill protection within truck transporters
Installation of vibrating fork with universal voltage electronic and no calibration
Plant operators are busy keeping pace of the wide range of challenges presented by raw materials of the building sector, the changing operating conditions in silos or pipelines or the need for ex-certificates. Precise and robust continuous and point level measurement has to deal with high temperature, adhesion, different measuring ranges, corrosion of the probe, mechanical impact
And of course dusty atmosphere. Such requirements call for technology solutions that are versatile, whilst representing a cost-effective investment and offering versions fully equipped to meet a wide variety of these requirements.
A cement manufacturer in Europe was looking for a reliable sensor to detect the max-level in several truck transporters. Despite the cement other different solids are filled in these tanks. It should be a robust sensor for this harsh environment with a dusty atmosphere and buildup.
Depending on these requirements, vibrating level limit switches are suggested as full, demand and empty detectors as they are especially suitable for use in sticky, fine media. The main component of the vibrating level limit switch is a piezo stack. The design of this piezo stack largely defines the range of application. With the vibrating fork electronically stimulated piezos cause the fork to vibrate. As soon as the sensor is covered with material, the vibration is dampened and the resulting electrical current change causes the output signal to switch. Once the material level falls below the sensor, it is free to vibrate again and the output signal is reset.
The vibrating fork Vibranivo® VN 2020 was an ideal solution with high sensitivity regardless of dusty environment and limited installation space. The devices were equipped with an aluminum diecast housing and robust stainless steel extensions for a long-lasting precise point level measurement in the truck transporters. They have all required international approvals for use in hazardous locations (gas and dust). The switch is a plug and play sensor and was simple in installation and commissioning. It is equipped with universal voltage electronics and could be put into operation without calibration.
