Capacitance Level Measurement Liquicap FMI51

Brand: Endress+Hauser

Capacitance Level Measurement Liquicap FMI51

Brand: Endress+Hauser
Extended Extended

Liquicap FMI51 is a reliable fully insulated rod probe for continuous level monitoring in liquids, particularly in build-up forming media and extremely high temperatures. The measurement is independent of the dielectric constant (dc).

Used in conjunction with Fieldgate FXA320 (remote measured value interrogation using Internet technology), Liquicap is an ideal solution for Inventory Management Solutions.

The device is independent of the dielectric constant (dc) as of a liquid conductivity of 100 μS/cm and allows measurement of various liquids without the need for recalibration.

  • Process connections: Flanges and threads
  • Process pressure: Vacuum to +100 bar (vacuum to +1,450 psi)
  • Measuring range: 0.1 to 4.0 m (0.3 to 13 ft)
  • Temperature: -80 to +200 °C (-112 to +392 °F)
  • International explosion protection certificates, overfill prevention WHG, SIL, hygienic certificates, marine approvals
Features
  • Use also in safety systems requiring functional safety to SIL2 in accordance with IEC 61508
  • Reliable and universal application thanks to wide range of certificates and approvals
  • No calibration necessary (factory preconfiguration). No calibration necessary for media with a conductivity of 100 μS/cm and higher
  • Material in contact with the process made of corrosion-resistant material, FDA-listed materials
  • Menu-guided local configuration via plain text display (optional)
  • Two-stage overvoltage protection

Specifications

Measuring Principle

  • Capacitive

Characteristic / Application

  • Fully insulated rod probe, for standart- and extreme process conditions (temperature, pressure, build-up)

Interface Measurement

  • Interfaces liquid / liquid also with emulsion layers

Specialities

  • Inactive length
  • Factory calibrated
  • Short response time by change of value

Supply / Communication

  • 12-36 VDC HART
  • PFM

Accuracy

  • Repeatablity 0.1%

Linearity Error for Conductive Liquids

  • <0.25%

Ambient Temperature

  • -50...+70 °C (-58...+158 °F)

Process Temperature

  • -80...+200 °C (-112...+392 °F)

Process Pressure / Max. Overpressure Limit

  • Vacuum...100 bar (1,450 psi)

Main Wetted Parts

  • Insulation material: PTFE, PFA
  • 316L

Process Connection

  • G1/2, G 3/4, G 1, G1-1/2 /NPT 1/2, NPT 3/4, NPT 1", NPT1-1/2
  • Flanges from DN25.../ASME 1".../JIS...

Process Connection Hygienic

  • Tri-Clamp ISO02852 gap free plated
  • Dairy coupling
  • Flush-mounted seal

Sensor Length

  • Total length: 6 m (20 ft)
  • Inactive length: max. 2 m (7 ft)

Max. Measurement Distance

  • 0.1 to 4.0 m (0.3 to 13 ft)

Communication

  • 4...20 mA HART
  • PFM

Certificates / Approvals

  • ATEX, FM, CSA, IEC Ex, TIIS, INMETRO, NEPSI, EAC

Safety Approvals

  • SIL

Design Approvals

  • EN 10204-3.1
  • NACE MR0175

Hygienic Approvals

  • 3A, EHEDG

Marine Approval

  • GL/ ABS/ DNV

Options

  • Separate housing
  • gas-tight probe seal

Application Limits

  • Insufficient clearance towards ceiling
  • Changing, non-conductive media, conductivity < 100 μS/cm
  • Notice the pressure and temperature derating
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