Capacitance
Level measurement
Liquicap FMI51

Liquicap FMI51 ©Endress+Hauser
Liquicap FMI51 ©Endress+Hauser
Liquicap FMI51 ©Endress+Hauser
Liquicap FMI51 ©Endress+Hauser
Liquicap FMI51 application © Photo Dominik Pluess (SC France)

For continuous level and interface measurement in liquids

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.

  • Benefits

    • 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...

  • Field of application

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

    • Process connections: Flanges and threads

    • Process pressure: Vacuum to +100bar...

Features and specifications

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Details

  • 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

    12-36V DC HART
    PFM

  • Accuracy

    Repeatablity 0,1%

  • Linearity error for conductive liquids

    <0,25%

  • Ambient temperature

    -50°C...+70°C
    -58°F...+158°F

  • Process temperature

    -80°C...200°C
    -112°F...392°F

  • Process pressure absolute / max. overpressure limit

    Vacuum ... 100 bar
    (Vaccum ... 1450 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: 6m (20ft)
    Inactive length: max. 2m (7ft)

  • Max. measurement distance

    0.1 m ... 4.0 m
    (0.3 ft ... 13 ft)

  • Communication

    4...20mA HART
    PFM

  • Certificates / Approvals

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

  • Safety approvals

    Overfill prevention WHG

    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

Accessories / Spare parts

Nr
Order code
Specification
  • 20
    • Nr 20 Order code 52002698

      Cover F13 Ex Alu, gasket

      O-ring EPDM. Usage: housing F13, aluminium, Ex d.

    • Nr 20 Order code 52002699

      Cover F17 Alu, gasket

      O-ring EPDM. Usage: housing F17, aluminium.

    • Nr 20 Order code 52006903

      Cover T13 Alu, gasket EPDM

      O-ring EPDM. Usage: housing T13, aluminium.

    • Nr 20 Order code 52025605

      Cover F16 high, transparent, gasket

      Display cover, gasket EPDM. Usage: housing Polyester, FMI21, FMI51/FMI52, FMU30.

    • Nr 20 Order code 52025606

      Cover F16 grey, PBTP, gasket

      Gasket EPDM. Usage: housing F16 Polyester, FMI21, FMI51/FMI52, FMU30, FTI51/FTI52/ FTI55/FTI56, FTI77, FTL50/FTL51/FTL51C/ FTL51H, FTL70/FTL71, FTL80/FTL81/FTL85, FTW31/FTW32.

    • Nr 20 Order code 52027000

      Cover F15 316L, gasket

      Gasket 67.5x2.9x1.5, VMQ/PTFE. Usage: housing F15, stainless steel.

    • Nr 20 Order code 52028269

      Cover F15 316L, high, sight glass,gasket

      Sight glass: glass. Gasket 67.5x2.9x1.5, VMQ/PTFE. Usage: housing F15, stainless steel.

    • Nr 20 Order code 52028270

      Cover F13/F17 Alu,high,sight glass,gask.

      Sight glass: glass. O-ring 70.0x3.0 EPDM. Usage: housing F13/F17 aluminium.

    • Nr 20 Order code 52028271

      Cover T13 Alu,Ex d,high,sight glass,gas.

      Sight glass: mineral glass. Individual tested, EEx d/XP. O-ring EPDM, FDA 72.0x3.0. Usage: housing T13 aluminium.

  • 25
    • Nr 25 Order code 52007103

      Cover T13 "Terminal" Alu, gasket EPDM

      O-ring EPDM. Usage: terminal compartment, housing T13, aluminium.

  • 20
    • Nr 20 Order code 52004137

      O-ring 71.0x3.55 EPDM, 5 pieces

      Usage: cover, housing F16, Polyester.

    • Order code 52004277

      Sealing set EPDM,cover F13/17/18/27,10pc

      Consists of: 10x O-ring 70.0x3.0 EPDM.

    • Order code 52008495

      Sealing set EPDM 73.0x3.0, 10 pieces

      Usage: cover.

    • Order code 52028179

      Gasket 67.5x2.9x1.5 VMQ/PTFE, 5 pieces

      Profile gasket cover. Usage: housing F15 stainless steel.

  • 30
    • Nr 30 Order code 52028260

      Electronics FEI50H, 4-20mA, HART

      Continuous 2-wire, 4-20mA. Usage: FMI51/FMI52.

    • Nr 30 Order code 52028261

      Electronics FEI57C, PFM

      Continuous 2-wire, PFM. Usage: FMI51/FMI52.

  • 35
    • Nr 35 Order code 71020804

      Terminal module 2-pole EEx d, RFI filter

      Usage: FMI51/FMI52, FTI51/FTI52/FTI55/FTI56, FTI77.

  • 40
    • Nr 40 Order code 52028266

      Display, holder

      4-line alphanumeric display. Usage: FMI51/FMI52.

    • Order code 919806-1000

      Mounting set (2"/pipe 38_V4A

      Usage: FMI51/FMI52, FTG20, FTI51/FTI52,FTI55/FTI56, FTI77, FTM50/FTM51/FTM52.

    • Order code 71040497

      Weather protection cover F13/F17/F18/F27

      Usage: FMI51/FMI52, FTI51/FTI52/FTI55/FTI56, FTI77, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL70/FTL71, FTL80/FTL81/FTL85, FTM20/FTM21, FTM50/FTM51/FTM52.

    • Order code 71127760

      Protection cover F16 housing

      Usage: FDR56, FMI21, FMI51/FMI52, FQR56, FTI51/FTI52/FTI55/FTI56, FTI77, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL70/FTL71, FTL80/FTL81/FTL85, FTM20/FTM21, FTM50/FTM51/FTM52, FTR20, FTW31/FTW32/FTW33.

  • 57
    • Nr 57 Order code 71194296

      Sealing ring G1/2, 21x26, FA, 5 pcs.

      Process gasket DIN7603-A. Usage: process connection, FMI51/FTI51, FTI55, FTL31/FTL33, FTW23/FTW33.

    • Nr 57 Order code 71185027

      Sealing ring G3/4, 27x32, FA, 5 pcs.

      Process gasket DIN7603-A. Usage: process connection, FMI51/FMI52, FTI51/FTI52, FTI55, FTL31/FTL33, FTW23/FTW33, FTL50/FTL50H/FTL51, FTL80/FTL81, FMP50/FMP51/FMP56, FMR62.

    • Nr 57 Order code 52014048

      Sealing ring G1, 33x39 FA, 5 pcs.

      Process gasket DIN7603-A. Usage: process connection, FMI51/FMI52, FTI51/FTI52, FTI55, FTL31/FTL33, FTW23/FTW33, FTL50/FTL50H/FTL51/FTL51H, FTL80/FTL81, Sliding sleeve G1 316L (52003663), 316L, 3.1 (52011880), AlloyC22, 3.1 (71118691), FTL51, FTL71, FTL81, AlloyC22 (52003664), FTL51, FTL71.

    • Nr 57 Order code 52014047

      Sealing ring G1-1/2, 48x55 FA, 5 pcs.

      Process gasket DIN7603-A. Usage: process connection, FMI21, FMI51/FMI52, FTI51/FTI52, FTI55, FTW31/FTW32, FMP51/FMP57, FMR60/FMR62/FMR67, Sliding sleeve G1-1/2 316L (52003665), 316L,3.1 (52011882), FTL51, FTL71,FTL81, AlloyC4 (52003666), FTL51, FTL71.

    • Order code

      Weld-in adapter and correspondig sealings

    • Order code 214880-0002

      Weld-in adapter UNI D65, 316L

      Flush mount process connection. Core hole: 65mm. Material: 316L. Seal: silicone profile gasket. FDA, EHEDG, 3-A compliant. Usage: FMB50, FMB70, FMD71/FMD78, FMI51/FMI52, FMP52, FTI51/FTI52, PMC51, PMP23, PMP55, PMP75.

    • Order code 52010174

      Weld-in adapter UNI D65, 316L, 3.1

      Flush mount process connection. Core hole: 65mm. Material: 316L. Inspection cert. EN10204-3.1 material. Seal: silicone profile gasket. FDA, EHEDG, 3-A compliant. Usage: FMB50, FMB70, FMD71/FMD78, FMI51/FMI52, FMP52, FTI51/FTI52, PMC51, PMP23, PMP55, PMP75.

    • Order code 52006262

      Weld-in adapter UNI D85, 316L

      Flush mount process connection. Core hole: 85mm. Material: 316L. Seal: silicone profile gasket. Usage: FMB50, FMB70, FMD71/FMD78, FMI51/FMI52, FMP52, FTI51/FTI52 PMC51, PMP23, PMP55, PMP75.

    • Order code 52010173

      Weld-in adapter UNI D85, 316L, 3.1

      Flush mount process connection. Core hole: 85mm. Material: 316L. Inspection cert. EN10204-3.1 material. Seal: silicone profile gasket. FDA, EHEDG, 3-A compliant. Usage: FMB50, FMB70, FMD71/FMD78, FMI51/FMI52, FMP52, FTI51/FTI52, PMC51, PMP23, PMP55, PMP75.

    • Order code 71258357

      Weld-in adapter G3/4, d=29, 316L

      Flush mount process connection. For pipe-mounting. Material: 316L. Seal: silicone O-ring. FDA, EHEDG compliant. Usage: FTL20/FTL20H, FTL31/FTL33, FTW23, FTW33.

    • Order code 71258355

      Weld-in adapter G3/4 d=50, 316L

      Flush mount process connection. For vessel-mounting. Material: 316L. Seal: silicone O-ring. FDA, EHEDG, 3-A compliant. Usage: FTL20/FTL20H, FTL31/FTL33, FTW23, FTW33, FMI51, FTI51, 11371. Usage: TMR35.

    • Order code 52018765

      Weld-in adapter G3/4 d=50, 316L, 3.1

      Flush mount process connection Material: 316L. Inspection cert. EN10204-3.1 material. Seal: silicone O-ring. FDA, EHEDG, 3-A compliant. Usage: FMI51, FTI51, FTL20/FTL20H, FTL31/FTL33, FTW23/FTW33, 11371. Usage: TMR35.

    • Order code 52001051

      Weld-in adapter G1, d=60, 316L

      Flush mount process connection. Material: 316L. Seal: silicone O-ring. FDA, EHEDG, 3-A compliant. Usage: FMI51/FMI52, FTI51/FTI52, FTL20/FTL20H, FTL31/FTL33, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL80/FTL81, FTL260, FTW23, FTW33, PMP23, PMP51, PMP135, PTP33B/PTP35. Usage: TM401/TM411, TMR35.

    • Order code 52011896

      Weld-in adapter G1, d=60, 316L, 3.1

      Flush mount process connection. Material: 316L. Inspection cert. EN10204-3.1 material. Seal: silicone O-ring. FDA, EHEDG, 3-A compliant. Usage: FMI51/FMI52, FTI51/FTI52, FTL20H, FTL31/FTL33, FTL50/FTL50H/FTL51/FTL51C/FTL51H, FTL80/FTL81, FTL260, FTW23, FTW33, PMP23, PMP51, PMP135, PTP33B/PTP35. Usage: TM401/TM411, TMR35.

    • Order code 52021717

      O-ring 14.9x2.7 VMQ, FDA, 5 pcs.

      Material: silicone VMQ 75. Usage: Weld-in adapter G3/4, 316L, (71258355) vesselmounting, (71258357) pipe-mounting, flush mount, FTL31/FTL33, FTW23/FTW33, QMW43, Weld-in adapter G3/4, 316L, 3.1, (52018765) vesselmounting, (52028295) pipe-mounting, flush mount, FMI51, FTI51, FTL31/FTL33, FTW23/FTW33, QMW43.

    • Order code 71086117

      O-ring 14.9x2.7 VMQ, FDA, USP, 3 pcs.

      Material: silicone VMQ 80. USP Class VI. Usage: Weld-in adapter G3/4, 316L, (71258355) vesselmounting, (71258357) pipe-mounting, flush mount, FTL31/FTL33, FTW23/FTW33, QMW43, Weld-in adapter G3/4, 316L, 3.1, (52018765) vesselmounting, (52028295) pipe-mounting, flush mount, FMI51, FTI51, FTL31/FTL33, FTW23/FTW33, QMW43.

    • Order code 52014472

      O-ring 28.17x3.53 VMQ, FDA, 5 pcs.

      Material: silicone VMQ 70. Usage: weld-in adapter G1, 316L, (52001051) flush mount, FMI51/FMI52, FTI51/FTI52, FTL31/FTL33, FTW23/FTW33, PMP23, PMP51, PTP33B, FTL50/FTL50H/FTL51/FTL51H, FTL80/FTL81, QMW43, Weld-in adapter G1, 316L, 3.1, (52011896) flush mount, FMI51/FMI52, FTI51/FTI52, FTL31/FTL33, FTW23/FTW33, PMP23, PMP51, PTP33B, FTL50/FTL50H/FTL51/FTL51H, FTL80/FTL81,QMW43, sliding sleeve FTM21.

    • Order code 71086102

      O-ring 28.17x3.53 VMQ, FDA, USP, 3 pcs.

      Material: silicone VMQ. USP Class VI. Usage: weld-in adapter G1, 316L, (52001051) flush mount, FMI51/FMI52, FTI51/FTI52, FTL31/FTL33, FTW23/FTW33, PMP23, PMP51, PTP33B, FTL50/FTL50H/FTL51/FTL51H, FTL80/FTL81, QMW43, Weld-in adapter G1, 316L, 3.1, (52011896) flush mount, FMI51/FMI52, FTI51/FTI52, FTL31/FTL33, FTW23/FTW33, PMP23, PMP51, PTP33B, FTL50/FTL50H/FTL51/FTL51H, FTL80/FTL81,QMW43, sliding sleeve FTM21.

    • Order code 71140668

      O-ring 28.17x3.53 EPDM, FDA, USP, 3 pcs.

      Material: EPDM 70. USP Class VI, 3-A. Usage: weld-in adapter G1, 316L, (52001051) flush mount, FMI51/FMI52, FTI51/FTI52, FTL31/FTL33, FTW23/FTW33, PMP23, PMP51, PTP33B, FTL50/FTL50H/FTL51/FTL51H, FTL80/FTL81, QMW43, Weld-in adapter G1, 316L, 3.1, (52011896) flush mounted, FMI51/FMI52, FTI51/FTI52, FTL31/FTL33, FTW23/FTW33, PMP23, PMP51, PTP33B, FTL50/FTL50H/FTL51/FTL51H, FTL80/FTL81,QMW43, sliding sleeve FTM21.

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