Pressure sensors LFH

  • Enables level measurement under difficult conditions where other measurement technologies fail
  • Rugged and reliable through robust mechanical design and high-grade materials
  • For cleaning purposes the probe can easily be taken out of the liquid
  • No drillings required in the wall of the vessel
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The LFH level probe is a rugged pressure transmitter for continuous level measurement. The liquid column above the probe creates a hydrostatic pressure which is a direct indicator for the liquid level. Through its permanently connecting cable, the LFH is submerged into the liquid. The precise measurement technology is integrated in a rugged stainless steel housing. To meet diverse requirements, the LFH level probe is available in two variants, standard and enhanced. For the enhanced variant there are a number of options available that extend the range of applications significantly. They include a maximum cable length of 250 m (standard design: 100 m), integrated temperature measurement, surge protection, and a connecting cable with highly resistant FEP sheathing (up to 100 m).

At a glance
  • Immersion depth up to 100 m
  • Available with various cable lengths
  • Measuring ranges from 0.1 bar … 1 bar up to 0 bar … 25 bar
  • Stainless steel membrane
  • Hermetically sealed stainless-steel housing with PA protective cap
  • Cable made from PUR, FEP cable is available as an option for aggressive media
  • Optional temperature measurement with integrated Pt100 element
  • Optional surge protection

Technical data overview

Device type Level Probe
Pressure unit Bar, mWS
Accuracy ≤ ± 0.5 % of the span

≤ ± 0.5 % of span with enhanced version with p < 0.25 bar

≤ ± 0.25 % of the span for Enhanced variant p ≥ 0.25 bar

≤ ± 0.25 % of span with enhanced version with p < 0.25 bar

Output signal Analog
Electrical connection Cable connection


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