Dynatrol^® CL-10DJ Level Switch for Bulk Solids

The Type CL-10DJ Dynatrol^® Level Switch is designed for application to either high or low point level detection of bulk solids. Reliable operation can be achieved with this level control in problem applications where other types of controls may fail to operate at all.

Versatile:
This control is applicable to the level detection of a wide range of bulk solid materials. Various models are available in order to operate successfully in products ranging from low
density flakes and powders to heavy granules and pellets. Models are also available for detection of the interface level between liquids and bulk solids materials.

No Adjustment Required:
All level switch components have been constructed for long operating life and require no field adjustments.

Simple Installation:
Simple installation is made in the tank side through a 3/4" half-coupling at the point of desired level detection.

Principle of Operation:
The Dynatrol Level Switch consists of a rod which is installed through the wall of the bin or duct at the point of desired level detection.When the level probe is uncovered, the drive coil drives the rod into self-sustained mechanical oscillations at the natural resonant frequency of the rod. The pick-up coil, located opposite to the drive coil, is excited by these mechanical oscillations and produces an a-c signal voltage. This signal voltage indicates the rod is uncovered - that a low level exists.

When the process media covers the rod, a dampening of the rod oscillations occurs. Consequently, the magnitude of the rod oscillations are greatly reduced and the output from the pick-up coil drops to a very low value, indicating that the rod is covered - that a high level exists.