Levelflex M

Levelflex M

Continuous Level Transmitter for level and interface measurement in liquids.


  • Measurement independent of product properties as:
        dielectric constant,
  • Measurement is also possible in the event of foam or if the surface is very turbulent.
  • Simple, menu-guided onsite operation with four-line plain text display.
  • Easy remote operation, diagnosis and measuring point documentation with the free operating program supplied.
  • Optional remote display and operation.
  • Onsite envelope curve on the display for easy diagnosis.
  • Electronics can be replaced without opening the tank.
  • Application in safety related systems (overspill protection) with requirements for functional safety up to SIL 2 in accordance with IEC 61508/IEC 61511-1.
  • Approvals:

    – Europe: ATEX,  PED, WHG, steam boiler EN12952-11/EN12953-9.
    – North America: FM, CSA, boiler act.

Field of application

Level measurement

The Levelflex M is used for continuous level measurement of liquids.

FMP45 for highest of pressures and/or temperatures

  • Temperature range:
    -200 °C (-328 °F)  to +400 °C (+752 °F).
  • Pressure range: -1 to 400 bar (5802 psi).
  • With second safety compartment: gas-tight glass feed though.
  • Rod and coax probes up to 4 m (157″), rope probes up to 35 m (1378″) measuring range.
  • HART (standard) with 4 to 20 mA analog,
  • FOUNDATION Fieldbus.

Interface measurement

Continuous measurement of interfaces between two liquids with very different dielectric constants, such as in the case of oil and water for example.

  • Measurement independent of density, conductivity and temperature.
  • Electronics version for the simultaneous measurement of the level of interfaces and the total level in liquids. The HART with 4 to 20 mA analog protocol is available for system integration
  • Special version for the measurement of the level of interfaces at a constant total level. The PROFIBUS PA and FOUNDATION Fieldbus protocols are available for system integration.
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