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Rotary | Capacitance | Continuous Level | Tilt Switch & Pressure | Vibrating Rod
Aeration & Material Flow | Flow Detection | Dust Detection

Please contact D.L. Williams Company for expert assistance in BinMaster product application, sales quotations or after-market support for any BinMaster devices used in the industries that we serve.

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Vibrating Rod: VR Series

The VR Series of vibrating rods are piezoelectric devices with a single blade-shaped vibrating element. Material coming into contact with the probe dampens the vibration; material falling away returns the unit to normal vibration. This allows the unit to be used for high or low level indication.

The VR Series includes three different models:

  1. VR 21 - Standard unit with an insertion length of 7.37"
  2. VR 41 - Extends up to 13', using a solid extension tube
  3. VR 51 - Extends up to 19.5', using a flexible cable extension
  • Suitable for high and low level indication
  • Detects extremely light, fluffy materials and materials with low dielectric constants
  • Unique "blade" probe design reduces false alarms caused by buildup
  • Insertion length adjustable from 7.37" to 19.5'
  • Switch selectable high/low fail-safe

VR 21

VR 41

VR 51


Power Requirements: 115/230 VAC 50/60 Hz 24 VDC
Power Consumption: 2 VA
Output: SPDT Relay, 5A @ 250 VAC
Fail-safe: High/Low Switch Selectable
Operating Temperature

-40 to +150F (-40 to +65C)
-40 to +190F (-40 to +88C)
Pressure: 500 PSI
Sensitivity: High/Low Switch Selectable
Time Delay: 1 Second From Stop of Vibration
2-5 Seconds From Start of Vibration
Enclosure: Die Cast Aluminum
Probe: 304 Ss, 7.37" - 19.5' Insertion Length
Conduit Entry: PG 13.5 or " NPT
Mounting: 1 " NPT
Status Indicator: Relay: Red LED on PCB
Power: Yellow LED on PCB
Minimum Material Density: 2 lb./cu. ft. (32kg/m3)