Smart level switches

Hawk has added a vibration switch to its Gladiator range of smart level switches.

The level sensing arrangement used in the switch is suitable for a wide range of liquids and solids, including slurries and palletised materials.

The sensing element includes two prongs or vanes. When the prongs on the form are free to vibrate they are driven to their resonant frequency by piezo ceramic elements.

As the level of the material to be sensed rises, the material blocks the movement of the fork. The electronics in the unit senses this change and produce an output, which can be used for indication or control.

This type of switch is suitable for many situations requiring level detection, including pump control, high- or low-level alarms and detection of an interface between two different materials.

A remote amplifier is available. The probe can be up to 500 m from the amplifier. A high temperature extension allows the unit to handle temperatures up to 150°C.