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Jerguson Series VL Vibrating Probe Level Switch

The VL Series is made specifically for solids level measurement in containers. This sensor is designed for bulk density as low as 0.2g/cm 3(12.5 lb./cu. ft.). The operating principle is a vibration rod mounted with two piezo electric elements; one providing vibration, and the other detecting changes in the vibration frequency. The piezo crystal sets up a 330 Hz oscillation and is dampened by the detection of the bulk material.

The VL series is compact for high and low level detection on small and large silos us model VL21. With less than eleven inches of insertion length the VL11 can be top or side mounted. The top mount can be extended to provide high level alarms in silos (use model VL21). The field selectable sensitivity allows this product to be used on a range of dry media ranging from fluidized powders to sticky medias. The single tine probe provides a reliable level switch in products which may be sticky. The single tine probe will not become clogged.

  • Single Point Entry
  • No Clog Detection
  • Wide Adjustability
  • Sense Powders as low as 0.2 g/cm3
Specifications:
  • Measurement ............ Single Vibrating tine
  • Temperature Range Standard: wetside: -4°F to 212°F | dryside: -4°F to 140°F
  • Temperature Range Extended: wetside: -4°F to 302°F | dryside: -4°F to 140°F
  • Power Requirements .... 120, 120,240 VAC ± 10% .......or 24 VDC ± 6 volts
  • Power Consumption .... approx. 5 VA
  • Contact Rating ........... 1 SPDT (240 VAC, 30 VDC @ 3A)
 
Performance:
  • Selectable Sensitivity Very High - for fluidized powders
  • Selectable Sensitivity High - for fine powders 0.2-0.5g/cm3
  • Selectable Sensitivity Standard - bulk density 0.5g/cm 3
  • Selectable Sensitivity Low - sticky media
  • Pressure ................... 290 PSI
  • Vibration Frequency ....330 Hz
  • Enclosure ................. NEMA 4X
  • Sensor Material ..........304 or 316 Stainless Steel
  • Connection............... 1" NPT Std.
  • Net Weight ............... 41bs.
 
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