Last Updates: 16/08/2020

E&H Levelflex FMP51 Guided radar measurement Time-of-Flight

Part Number: FMP51 Categories: ,
  • Email Us:
  • WhatsApp Us: +60165519084
  • Levelflex FMP51 for level measurement even under extreme process conditions like 
    high temperature and high pressure in the process industry. FMP51 offers maximum reliability even in case of moved surface and foam or when numerous tank baffles interfere with the measurement. Levelflex FMP51 is used for continuous level measurement of liquids, pastes and slurries but also for interface measurement. The measurement is not affected by changing media, temperature changes, gas blankets or vapors.

    • Reliable measurement even for changing product and process conditions
    • HistoROM data management concept for fast and easy commissioning, maintenance and diagnostics
    • Highest reliability due to new Multi-Echo Tracking evaluation
    • Hardware and software developed according to IEC 61508 up to SIL3
    • Heartbeat Technology for a cost-effective and safe plant operation during the entire life cycle
    • Seamless integration into control or asset management systems and intuitive, menu-guided operation concept (on-site or via the control system)
    • World’s easiest proof test for SIL and WHG saves time and costs

    Version with rod, rope or coax probe.

    • Process connections: Threads or flange
    • Temperature: -50 to +200°C (-58 to +392°F)
    • Pressure: -1 to +40bar (-14.5 to +580psi)
    • Maximum measuring range: Rod 10m (33ft), rope 45m (148ft), coax 6m (20ft)
    • Accuracy: ±2mm (0.08″)
    • International explosion protection certificates, overfill prevention WHG, SIL, marine approval, 5-point linearity protocol
    • Measuring principle

      Guided radar

    • Characteristic / Application

      Premium device

      Rod probe, Rope probe, Coaxial probe

      Integrated data memory, Factory precalibrated, Reliable measuring: in case of moved surface + foam, for changing medias.

    • Interface measurement

      Clean interfaces liquid/ liquid;

      Simultaneous measurement of interface and overall level

    • Specialities

      Heartbeat Technology,

      Bluetooth® commissioning,

      Operation and maintenance SmartBlue App,


      RFID TAG for easy identification

    • Supply / Communication

      2-wire (HART/ PROFIBUS PA/ FOUNDATION Fieldbus)

      4-wire (HART)

      Bluetooth® wireless technology and App (optional)

    • Accuracy

      Rod probe :+/- 2 mm (0.08 in) 

      Rope probe <= 15 m (49 ft): +/- 2 mm (0.08 in)

      Rope probe > 15 m (49 ft): +/- 10 mm (0.39 in)

      Coaxial probe: +/- 2 mm (0.08 in)

    • Ambient temperature

      -50…+80 °C

      (-58…+176 °F)

    • Process temperature

      -50…+200 °C

      (-58…+392 °F)

    • Process pressure absolute / max. overpressure limit

      Vacuum…40 bar 

      (Vacuum…580 psi)

    • Main wetted parts

      Rod probe:

      316L, Alloy C, Ceramic

      Rope probe: 

      316, 316L, Alloy C, Ceramic 

      Coaxial probe:

      316L, Alloy C, Ceramic, PFA

    • Process connection


      G3/4…G1 1/2;

      MNPT 3/4…MNPT1 1/2


      ASME 1 1/2″…8″, 
      DN50…DN 200, 
      JIS 10K

    • Sensor length

      Rod probe: 10 m (33 ft) 

      Rope probe: 45 m (148 ft) 

      Coaxial probe: 6 m (20 ft)

    • Max. measurement distance

      Rod: 10 m (33 ft) Min DK>1.6

      Rope: 25 m…30 m (82ft…98 ft) Min DK>1.6;

      30m…45 m (98ft…148 ft) Min DK>1,9

      Coaxial probe: 6 m (20 ft) Min DK>1.4

    • Communication

      4…20 mA HART 


      FOUNDATION Fieldbus

      Bluetooth® wireless technology

    • Certificates / Approvals


    • Safety approvals

      Overfill prevention WHG


    • Design approvals

      EN 10204-3.1

      NACE MR0175, MR0103

      ASME B31.1, B31.3


    • Marine approval

      GL/ ABS/ LR/ BV/ DNV

    • Options

      Sensor remote with 3 m/ 9 ft cable,

      Gas-tight feed through,

      Remote operation via SmartBlue App using Bluetooth®

    • Application limits

      Horizontal storage tank cyl.: 
      use coax probe

      Corrosive liquids: FMP52

      Interface measurement: Use coax system in favor (coax probe, bypass, stilling well) 

      Interface with emulsion: FMP55

    DataSheet: Levelflex FMP51, FMP52, FMP54 Technical Information

    Levelflex FMP51 Modbus Technical Information

    Scroll to Top