FineTek SC Series Vibrating Probe Solid Level Switch
When a material’s dielectric constant is too low for capacitance switches to read reliably, the FineTek vibrating probe solid level switch steps in — a versatile point-level sensor that handles virtually any bulk solid, from granular and sandy materials to foodstuffs and fine powders, with maintenance-free operation in silos, hoppers, and bins.
How It Works
Piezoelectric crystals built into the vibration tube generate resonance at a specific frequency, with one element transmitting and the other receiving to convert vibration into an electrical signal. Once bulk material covers the probe, the vibration is damped, and that resulting frequency shift triggers the switch output.
Key Features
- Works where dielectric constant is too low for capacitance switches
- Unaffected by changing material moisture content
- Suitable for mixed materials in the same vessel and low viscosity liquids
- Single-rod design eliminates jamming and clogging between fork tines
- Withstands high lateral loads and static electricity
- Mounts at almost any angle with simple calibration
- Built-in fail-safe protects against malfunction from power interruption
Applications — Solid Level Detection
- Powders: powdered milk, flour, spices, coffee beans and powder, tea, salt, sugar, grains, chocolate, tobacco, powdered cellulose, powdered clay, polystyrene powder, dry soot, soda ash, coal ash
- Granular and plastics: gravel, fine glass powder, granular plastics, foundry sand, cement, plastic pellets
- Chip or pellet-like: frozen potato chips, beans, peanuts, sweets and candy, animal and pet food, wood shavings, chalk, steel chips, styrofoam, charcoal
Industries Served
- Food, beverage, and animal feed
- Cement, aggregates, and mining
- Plastics and rubber
- Chemical and pharmaceutical




