TC Fluid Reed-chain Level Sensor

TC Fluid Reed-chain Level Sensor is used for level measurement in liquid media. They work on the float principle with magnetic transmission. The float’s magnetic system in the guide tube actuates a resistance measuring chain that corresponds to a 3-wire potentiometer circuit. The measurement voltage generated by this is proportional to the fill level.

The measurement voltage is very finely stepped due to the contact separation of the measuring chain and is thus virtually continuous. Resolutions between 5 and 18 mm are available depending on the requirements.

TC Fluid Reed-chain Level Sensor Features

  • Process- and system-specific solutions possible
  • Operating limits:
    – Operating temperature: T = -80 … +200 °C
    – Operating pressure: P = Vacuum to 80 bar
    – Limit density: ρ ≥ 400 kg/m3
  • Wide variety of different electrical connections, process connections and materials
  • Optionally with programmable and configurable headmounted transmitter for 4 … 20 mA field signals, HART®, PROFIBUS® PA and FOUNDATION™ Fieldbus
  • Explosion-protected versions
  • Large scope of application due to the simple, proven functional principle
  • Process connection, guide tube and float from stainless steel 1.4571 or plastic
  • For harsh operating conditions, long service life
  • Continuous measurement of levels, independent of physical and chemical changes of the media such as: Foaming, conductivity, dielectric, pressure, vacuum, temperature, vapours, condensation, bubble formation, boiling effects, density change
  • Signal transmission over long distances
  • Simple installation and commissioning, onetime calibration only, no recalibration necessary
  • Level displayed proportional to volume or height
  • High repeatability
  • Interface measurement and overall level from ∆ density 50 kg/m³
  • Level sensors with reed-chain technology qualify as passive electrical equipment in accordance with DIN IEC 60079-11 and can be installed in “zone 1” hazardous areas without certification, so long as the equipment is operated in a certified intrinsically safe circuit with a minimum explosion protection of EEx ib.

     Another Article:


  • Level measurement for almost all liquid media
  • Chemical, petrochemical, natural gas, offshore, shipbuilding, machine building, power generating equipment, power plants
  • Process water and drinking water treatment, food industry, pharmaceutical industry

Download Datasheet: TC Fluid Control Reed-chain Level Sensor


TC Fluid Reed-chain Level Sensor Model Overview

Sensor model Approval Temperature range (process)
without Ex i Ex d GL Ex i + GL ABS DNV Bureau Veritas 3-A      FM GOST
FLR-S x x x x x x x x x -80 … +200 °C
FLR-P x -10 … +100 °C
FLR-H x x x -20 … +200 °C

Download Datasheet: TC Fluid Control Reed-chain Level Sensor


%d bloggers like this: