Non Contact Radar Level Transmitter

Apure non-contact radar level transmitters measure the distance from an antenna to the product surface through the vessel headspace. The product family includes pulse and frequency-modulated continuous-wave (FMCW) versions.

  • Non-contact antenna measurement
  • Pulse and FMCW versions
  • Antenna selection for the application

Pulse radar level transmitter

The antenna emits a microwave pulse and receives the reflection from the product surface. The instrument calculates distance from the return time. The pulse versions on this page list a nominal frequency of 26 GHz.

FMCW radar level transmitter

The antenna sends a continuous sweep of frequencies. The difference between the transmitted and returning frequencies is used to determine distance. The FMCW versions on this page list a frequency range of 76–81 GHz.

Application and installation checks

The reflected signal depends on the medium and its surface. Check the antenna and beam clearance against the nozzle, tank walls, internal structures and filling stream. Foam, antenna buildup, dust and the surface angle of bulk solids can affect echo quality. Provide the vessel dimensions, medium and process conditions to select a version and verify its usable span.

The table preserves the previously listed family values. Confirm the selected pulse or FMCW model, antenna and mounting arrangement. Verify whether the pressure entry is gauge or absolute and check the allowable operating temperature, pressure and accuracy conditions for the actual assembly.

BrandApure
TypePulse / FMCW
Measure range120m, customizable
Process pressure-0.3~2Mpa
Precision±1mm
Frequency range26GHz, 76~81GHz
Process temperature-40~250˚C