The Reflex VF2 Series range of TDR guided microwave products is ideal for the measurement of liquids, powders and granules to a distance of 40 metres. Unaffected by pressure, temperature, viscosity, vacuum, foam, dust, changes in dielectric constant or coating of the probe, the VF Series level indicators can measure virtually any product in either Direct, Automatic or TBF mode utilising any one of its seven available probe types.

The VF2 TDR transmits low-intensity electromagnetic pulses of approximately one nanosecond width along a rigid or flexible conductor. These pulses move at the speed of light and are reflected to the signal converter when the pulse waves reach the surface of the product to be measured. The device monitors the time from when the pulse was transmitted to when it is received. Halving this measurement gives the time equivalent of the distance from the device to the product surface. This measurement then outputs as a 4-20 mA current.

VF2 offers users a range of options, including remote display, ATEX, and other housing types to suit a variety of applications.

The VF2 utilises new DPR advanced software for dynamic parasite rejection which automatically removes false signals and improves the stability and accuracy of the measured signal.


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  • Universal technology 
  • Multiple housing options
  • Remote display 
  • SIL 2 safety level
  • Integral display and programmer 
  • Two-wire loop powered
  • Parasite rejection software 
  • Corrosion-resistant
  • Small process connections 
  • ATEX options available
Measuring Range :
0 - 40 m

Maximum Temperature :

Accuracy :
+/- 3 mm option

ATEX Option :

VF2 TDR Level Gauge - Datasheet
VF2 TDR Level Gauge - Manual v4
VF2 V1_1.3.4 HART

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