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BinMaster - Model VRX21 -Standard Vibrating Probe Level Sensor
The VRX21 vibrating probe level sensor is the newest iteration of BinMaster’s standard vibrating rod, now including a bright, built-in LED status indicator. The light can easily be seen from afar, appearing as red or green, and changing color based on if material is or is not covering the probe and damping its vibration.
VRX21 is a premier choice for measuring fluffy, low-dielectric bulk solids, powders, and granules as light as 1.9 lb./ft.³ (30 g/liter). The sensor utilizes a 24 VDC or 115/230 VAC power supply and operates in temperatures up to 140°F (60°F). (High-temperature probe up to 284°F/140°C available)
The sword-shaped vibrating blade has a 7.5” insertion length into the vessel to detect high, mid, or low point-level conditions. It can be mounted at the top, side, or cone of a bin, tank, silo, or vessel with 1 1/4” or 1 1/2” NPT threads.
By providing reliable level alerts, users can reduce material waste, prevent overfills, or know when to order more when material levels get too low.
BinMaster’s VRX21 features DPDT relay contacts, allowing the user to preset two switching outputs—such as to “covered” and “uncovered”—plus configurable time delay settings and selectable fail-safe protection.
The VRX21 die-cast aluminum power pac—rated NEMA Type 4X—features 3/4" NPT dual conduit entries, a screw-off cover, and USDA-approved powder coat finish. Its durable design and self-cleaning capabilities offer a long, dependable service life.
Additional configurations of the VRX probes are available to best fit your application, from extended probes to high-temperature models to vibrating forks and more.
Email info@binmaster.com or call 800.278.2421 to discuss your needs.
For ordinary locations. Approvals coming Fall 2025!
Standard-Length Vibrating Probe Level Sensor
Unique single-rod probe design with a sword-shaped blade to prevent buildup and bridging.
Searching for a point level sensor for light, fluffy, or low-dielectric materials?
The VRX21 piezoelectric vibration probe switch works and thrives in challenging materials such as carbon black, plastics, and fly ash.
How it works:
The blade vibrates until material covers it and damps the vibration. This triggers a relay, indicating a covered condition.
Buzz-worthy features:
- Unique blade probe design defies buildup to reduce false alarms
- Works in low-dielectric, fluffy materials with densities as light as 1.25 lb./ft.³
- Two sensitivity settings
- Quick setup with no calibration required
- Switch-selectable high/low fail-safe
- Top or side mounting options
- Remote electronics available to provide distance from heat and harsh environments
- Coming soon! Optional CSA hazardous location approvals for Class II, Division I, Groups E, F, and G
Overflow Prevention
High-level alerts to avoid overfilling vessels
Material Outages
Low-level alerts eliminate empty conditions
Plugged Chutes
Detect when chutes are clogged with material
Process Control
Switching relay to turn a process off or on
Conveyor Overload
Prevent jamming or damaging conveyors
- SKU: VRX21
- Means of Measurement: Vibrating Rod
- Measurement Type: Point Level
- Medium: Solids
- Voltage : 24 VDC, 115/230 VAC Selectable
- Outputs: Relay DPDT 5 Amp
- Ambient Temperature: -4°F to +140°F (-20°C to +60°C)
- Process Temperature: Std Probe: -4°F to 176°F (-20°C to +80°C)
- Approvals: Unlisted
- Enclosure Type: NEMA 4X
- Enclosure Material: Die cast aluminum
- Mounting: 1.25" NPT, 1.5" NPT
- Conduit Entry: 0.75" NPT