Level switches and level probes for solids with bulk density above 90g/litre
The operating principle for all vibrating probe level switches is the same: a piezoelectric crystal is used to force a blade to oscillate at its fundamental frequency (also referred to as the natural resonance). When the blade of the probe comes into contact with the process media the natural frequency of oscillation is dampened; the electronics sense the change in frequency which causes the unit to switch.
The DP600 series offers a simple, low-cost solution for a range of simple point switching applications. It has a single solid stainless steel rod which is vibrated by the piezoelectric element. Thanks to its small size, it is ideal for use in small hoppers containing granular materials or pellets, such as plastics, food or grain. However, the circular construction of the DP600 means that it is not as sensitive to light materials. The DP600 probe should therefore only be used on products and materials which have a bulk density greater than 90 grammes per litre.
No maintenance required
Very strong and robust
Unaffected by environmental changes
Simple to install
Measures products from 10grm/litre
Only sensitive near the probe tip