Flexar Tip

A real-time continuous level sensor can provide instantaneous level measurements and better control over re-ordering materials to help cut inventory costs.  Monitor Technologies' Flexar® guided wave radar sensor is a continuous level measurement system that uses TDR (time domain reflectometry) principles. Basically, the radar pulses are focused down to the material surface by the unit's wave guide (a heavy duty cable) and the time-of-flight of the pulse reflection back to the instrument electronics is directly related to the empty distance in the vessel and the material level. The Flexar guided wave radar system has proven successful for many powder and bulk solids applications, including dusty conditions. It is also suitable for a variety of liquid applications.

Benefits of Flexar®

  • TDR technology is unaffected by dust, bulk density and temperature.
  • Focused / directed energy field prevents undesired detection of obstructions within the vessel.
  • No moving parts for less wear and tear.
  • Easy installation and setup with minimal to no field calibration required.
  • A universal power supply for high or low voltage options and a choice of RS-485 or analog 4-20mA output.
  • Flexar can be interfaced with the SiloTrack inventory management software, HMI2 local operator indicator and WirelessEZ communication interface.

Applications include: 

  •  Dynamic situations that need real-time, continuous level measurements. Examples include: concrete batch plants, grain elevators during peak times and for balancing material levels in surge bins that supply pellets to fuel furnaces or boiler fires.
  • Inventory management applications.
  • Target materials / internal vessel atmospheres that are dusty.
  • Most powder and bulk solid materials including:
    • Feed & Grain, Food Ingredients, Cement, Fly Ash, Lime, Sand / Aggregates, Pellets, Coal, Pigments, Carbon Black, Chemicals, Pharmaceuticals, etc.
  • Some liquids and slurries.
  • Measuring range up to 100 ft (30m) for powder & bulk solids and up to 200 ft (60m) for some liquids.

(Range dependent on target material's dielectric constant.)