At the forefront of Instrumentation since 1948

Model ALV 810 – Compact

For OEM’s and for installation in restricted places

This model is especially suited for installation in restricted spaces. The electronics is enclosed in a compact housing and is integrated with the fork into a single unit. These instruments are ideal for OEM’s.

Features

  • Calibration free and easy installation.
  • Insensitive to material build-up.
  • Field selectable fail safe mode.
  • Adjustable time delay.
  • Meets International Standards
  • Built-in Diagnostics
  • Customer specified insertion lengths up to 6m with cable or pipe extensions.
  • Compact as well as remote mounted versions available
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  • Mains supply : 18 Vdc to 30 Vdc
  • Output : Relay, Open collector
  • Response Time : < 1sec
  • Fork Vibrating Frequency : 80 Hz ± 5 Hz
  • Ambient temperature : -20 to 60° C
  • Process temperature : up to 80° C; Optional: up to 150° C
  • Housing : Cast Aluminium  
  • Protection : IP 65
  • Dry Powders – Cement, Pulverized coal, Coffee Powder, Milk Powder, Chemical Powder
  • Fine Grained Solids – Food Grains, Plastic Pellets, Wood

A low frequency signal is used to vibrate the piezo-electric crystal. The crystals connected to the tines of the fork cause them to vibrate. On contact with the material, these vibrations get damped. The attenuation in the vibrations is sensed by the electronics that generates an alarm.

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