Bindicator® vibronic level switches—primarily the Pulse Point™ II Series—use electronic vibratory (vibronic) technology to provide reliable point level detection for dry bulk solids. These switches use either a vibrating fork or vibrating rod element that resonates at a natural frequency. When material comes into contact with the vibrating element, the change in vibration triggers a level signal.
Unlike capacitive or mechanical technologies, vibronic switches are not influenced by the dielectric constant of the material, making them highly consistent for powders, granules, pellets, and even low density solids. They offer rapid installation with universal AC/DC power, no calibration, and extremely high sensitivity—able to detect materials with densities as low as 0.5 lb/ft³ (8 kg/m³).
Key Benefits
1.) Ultra‑High Sensitivity
- Detects very light solids down to 0.5 lb/ft³ (8 kg/m³) with the fork model, supporting a wide range of powders and aerated materials.Â
- Rod versions can handle slightly higher minimum densities but add durability for difficult or high‑build‑up environments.Â
2.)Â No Calibration Required
- Vibronic sensing is plug‑and‑play, requiring no tuning for different materials thanks to dielectric‑independent operation.Â
- Universal, non‑polarized power (120–240 VAC or 24–48 VDC) simplifies wiring and reduces installation errors.Â
3)Â Versatile Electronics Options
- Standard electronics: Universal supply, 3 sensitivity levels, time delay (0–6 seconds), and push‑button test.
- Advanced electronics: Six sensitivity levels, build‑up indication, extended delay ranges, and interface detection.Â
4.) Remote Electronics Capability
- Fork sensors support remote‑mount up to 100 ft (30 m); rods up to 50 ft (15 m)—ideal for high‑temperature or high‑vibration mounting locations.Â
5.) Robust Construction for Harsh Environments
- Temperature ratings up to 302°F (150°C) depending on sensor type.Â
- Options include hazardous‑location‑rated models (LP2, LP‑500ST).Â
- NEMA 4X/9 enclosures available for demanding industrial sites.Â
Common Uses
Dry Bulk Solids (Primary Application)
- Powders, pellets, grains, resin, cement, flour, sugar, and fine powders with extremely low bulk density.
- Horizontal and vertical mounting supported depending on the model.
Material Presence/Absence Detection
- High‑ and low‑level alarms
- Overfill prevention
- Surge protection
- Plugged‑chute detection in conveying systems
Challenging Media
- Aerated powders, very light solids, dry blends, and low‑weight materials where capacitive or mechanical switches may give inconsistent results.
Industrial Applications
- Plastics processing
- Food ingredients
- Chemical powders
- Cement and aggregates
- Feed and grain handling
Summary
Bindicator® vibronic level switches provide high‑performance, calibration‑free point‑level detection for a wide range of dry bulk solids. Their vibrating fork and vibrating rod designs ensure unmatched sensitivity—even for ultra‑light powders—while maintaining reliability in dusty, abrasive, or high‑temperature environments.
With universal power, no tuning required, advanced electronic options, and robust industrial construction, these switches deliver dependable operation for overfill prevention, material presence detection, and safety‑critical level control.
If your application involves powders, granular materials, low‑density solids, or challenging process conditions, Bindicator’s vibronic switches—especially the Pulse Point™ II Series—are among the most reliable technologies available.
