Dust And Corrosion Protection For Radar Measurement Instruments: Key To Extending Equipment Lifespan

When using radar measurement instruments outdoors, prolonged exposure to sunlight and rain can lead to equipment failures. Therefore, to extend the lifespan of radar level gauges, it is essential to maintain them with dust and corrosion protection.

First, let's discuss dust protection. Cleaning the exterior of radar measurement instruments is relatively straightforward. You can maximize protection by adding a protective cover to the radar level gauge or placing it in a sealed enclosure. For measuring media that contain dust, impurities, and particles, additional protective measures such as dust collectors, blowing devices, and protective screens can be installed to prevent clogging and reduce dust accumulation.

Next, we will discuss how to prevent corrosion. Compared to dust protection, corrosion maintenance is a bit more complex. When selecting materials, it is necessary to consider their corrosion resistance requirements. The fundamental approach to preventing corrosion of radar level gauges is to use corrosion-resistant materials. Common materials include components and sealing gaskets made from Poly tetra F RO ethylene (PTFE). Additionally, forming a protective layer on the surface of corrosion-resistant radar level gauges is a common industrial corrosion prevention measure. These protective layers can be classified into three types based on material and forming principles. The first type is metal protective layers, which include processes such as spraying, electroplating, hot-dipping, and carburizing. The second type is non-metallic protective layers, such as coatings, rubber, plastics, and enamel. The third type consists of non-metallic protective films, which form protective layers like oxide films and phosphate films through chemical treatment of the metal surface.

When corrosion-resistant radar level gauges need to handle highly corrosive media, and the measuring environment cannot be isolated using pipes or containers, it is recommended to use a corrosion-resistant diaphragm to separate the filling liquid from the measured medium to achieve corrosion protection. However, this method is generally suitable for pressure measurements rather than differential pressure measurements. By introducing air or other inert gases, the corrosive effect of the measured medium on the corrosion-resistant radar level gauge can be isolated. This method is appropriate for level measurements at atmospheric or low pressure and will not react with the measured medium.

The dust and corrosion maintenance of radar measurement instruments should be tailored to the specific usage conditions to ensure accurate measurements.