JFR Series Radar Level Transmitter


The JFR Series is a open-air radar level transmitter designed for measuring the changing level of liquids, slurries and bulk solids in tanks, bins and silos.  Operating at 26GHz the JRF series radar level transmitter products will provide non-contact continuous level measurement with high accuracy and reliability.

Product Description


The JFR series is an open-air radar level transmitter product line designed for measuring liquids and bulk solids in tanks, bins and silos.  These radar level transmitters are designed to operate at 26GHz and use FMCW (frequency modulated continuous wave) radar technology. An FMCW radar level transmitter emits a high frequency signal via an antenna towards the material surface.  A part of the radar energy is reflected off the material surface back to the radar level transmitter at some time delay. The difference in frequency between the transmitted signal and received signal is directly related to the distance being measured by the radar level transmitter. This frequency difference is processed by the electronics  As a result the linearity and accuracy of the measurement made by the JFR radar level transmitter is excellent, with an error rate as low as only ± 0.197″ (5mm).

  • Non-contact liquid level measurement
  • State-of-the-art FMCW (frequency-modulated-continuous-wave) technology, accuracy as good as ±0.197″ (5mm).
  • 4-20mA output, HART available
  • 24VDC powered, 4-wire; 2-wire available (pending)
  • Measuring range up to 130ft (40m)
  • 304SS, 316SS and PTFE coated wetted parts
  • Choice of accuracy: ±0.197″ (5mm), ± 0.394″ (10mm), ± 0.787″ (20mm) or ± 1.18″ (30mm)
  • Measuring range varies: maximum 32.8ft (10m) to 98.4ft (30m) for 10GHz unit, up to 130ft (40m) for 26GHz version
  • Horn or rod antenna, ETFE coated available
  • 2½” to 6″ process connection size, threaded and flanged available
  • 24VDC power supply (4-wire); 2-wire loop powered for 26GHz unit (pending)
  • Operating temperature up to 302⁰F (150⁰C) for rod antenna, 392⁰F (200⁰C) for horn antenna
  • Operating pressure up to 232psi (16bar) for rod antenna, 580psi (40bar) for horn antenna
  • Local display; 5 digits LCD for setup and indication or measured variable
  • Minimum dead band (blind distance) is 19.7″ (500mm)
  • IP65 / NEMA 4X powder coated diecast aluminum enclosure


  • Level control of pumps and process equipment
  • Accurate level measurement in tanks, bins and silos
  • Non-contact level measurement


  • Chemical
  • Agriculture, feed & grain
  • Water/wastewater
  • Food & beverage
  • Many others


JFR Sales Catalog

Full Line Products Guide

Product Solutions for Bulk Solids Industries

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