Northlight Parade, Brierfield, Nelson, BB9 5EG / UK
+44 (0) 7858 476987

Guided Microwave / MicroTREK



The MicroTREK Guided Wave Radar level transmitter is designed for continuous level
measuring of conductive or non-conductive liquids, pulps and solids. MicroTREK level gauge
operates based on the well-known TDR (Time Domain Reflectometry) principle. Micropulses are
sent along a probe guide at the speed of light. As soon as the impulse reaches the surface of
the medium, it is reflected back to the electronic module. Level distance is directly proportional
to the flight time of the impulse.
The reflected signal is dependent on the dielectric constant of the material, the feasibility of
the measurement is er ≥ 1.4.
The TDR technology is unaffected by the properties of the medium as well as that of the space
above it. Measurement is also unaffected by the change in the physical properties of the
materials such as temperature, pressure, dielectric constant.


  • 2-wire compact transmitter
  • Accuracy: ±5 or ±20 mm
  • High pressure
  • High-temperature range
  • Wide range of probes
  • Extremely small deadband
  • Rod, cable, or coaxial probe versions
  • Plug-in graphic display module
  • Explosion-proof variants available
  • Plastic, aluminum or stainless steel housing
  • Media with turbulent surface, dense dust, vapor or pressurized gas layers above the product surface
  • For all tank shapes, for narrow vessels
  • Heavy industrial applications


  • Level, distance or volume measurement of liquids, powders, granules with er > 1.4
  • Agriculture
  • Construction materials
  • Chemical industry
  • Food and beverage
  • Power plants
  • Oil industry
  • Water / wastewater industry


Power supply:18–35 VDC
Ambient temperature:−30°C…+60°C
Process temperature:−30°C…+200°C
Process pressure:−1–40 bar
Measuring range:0–24 m
Output:4…20 mA + HART®
Ingress protection:IP67


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