Vibrating Rod Level Switch

Vibrating Rod Level Switch

Solitel® Vibrating Rod Level Switches provide reliable level detection of powders and bulk solids with densities of less than one pound per cubic foot. This compact, integral switch is suitable for high or low level detection in hoppers or silos.

Operating Principle

The SOLITEL probe vibrates at 350 Hz. When in contact with the media, the vibration is dampened. The attenuation of the vibration is detected by the electronics, which changes the state of the relay.


- Plastic powders and pellets
- Wood chips and sawdust
- Pulverized coal
- Fly ash
- Cement, lime
- Perlite
- Aerosil® (fume silica)


- Single rod design eliminates clogging
- High temperature version up to +320° F (+160° C)
- Self-clean cycle and polished probe minimize solids buildup
- Class I, Div. 2 and Class II, Div. 1 approval
- Adjustable sensitivity allows easy calibration for various bulk densities


- Extended rigid probes up to 100 inches (2540 mm)
- Extended flexible lengths to 65 feet (20 meters)
- Input power selection


XP=Explosion Proof


+ Product Catalog
+ Instruction & Operating Manual