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VR-51-X - Vibrating probe level sensor with flexible cable extension


VR-51 - Vibrating probe level sensor with flexible cable extension, 20 to 250V AC/DC, process temp to 176°F (80°C), triple thread screw-off cover, dual conduit entries, DPDT relay contacts, selectable fail-safe protection, FDA recognized powder coat finish, LED status indicator light. Ordinary locations.

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Vibrating Probes with Rigid and Flexible Extensions

Top mounted, high-level detection

Extended vibrating rods are ideal where you want to leave a certain amount of headspace in the silo. They detect high levels to prevent overfilling. Wire them to an alert such as a light, horn, alarm panel, or PLC to shut a process off or on.

The VR-41 and VR-51 both feature a unique sword-shaped vibrating probe that resists buildup and false alarms. They don’t require any calibration and are wear and maintenance free.

About extended vibrating probes:

  • Suitable for high or low-level and plugged chute detection
  • Use in material densities of 1.25 lb./ cu. ft. or greater
  • Detect extremely light, fluffy materials with low dielectric constants
  • Three sensitivity adjustments and switch selectable high/lo failsafe
  • Optional hazardous location approvals to CSA Class II

Made to order in custom lengths!

VR-41 Rigid Extensions: 13 inches up to 13 feet

VR-51 Flexible Extensions: 19 inches up to 19 feet

Try an extended vibrating probe in carbon black, plastics, fly ash, feed, seed, grain, food, chemicals, and other light and low dielectric materials!


Overflow Prevention
High level alerts to avoid over-filling vessel


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

sediment detection

Sediment Levels 

Detect solid material settled in a tank containing liquids

More Information
Means of MeasurementVibrating Rod
Measurement TypePoint Level
Voltage 20 to 250 VAC/DC
OutputsRelay DPDT 10 Amp - 250 VAC max
Ambient Temperature-40°F to +150°F (-40°C to +65°C)
Process TemperatureUp to +300°F (148°C)
Enclosure TypeNEMA 4X, NEMA 5, NEMA 12
Enclosure MaterialDie cast aluminum
Mounting1.5" NPT
Conduit Entry0.75" NPT

Mount Plates

Learn all about the types of vibrating probes.

See vibrating probes and other point level sensors.

See all the sensors in the corporate overview.

Extended Vibrating Probe Brochures

Extended Vibrating Probe Manuals

Extended Vibrating Probe Spec Drawings

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