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Specs at a glance

Accuracy

Repeatablity 0,1%
Process temperature

-80°C...200°C
-112°F...392°F
Process pressure / max. overpressure limit

Vacuum ... 100 bar
(Vaccum ... 1450 psi)
Max. measurement distance

0.1 m ... 4.0 m
(0.3 ft ... 13 ft)
Main wetted parts

Insulation material: PTFE,PFA
316L

See all specifications

Field of application

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 100μS/cm and allows measurement of various liquids without the need for recalibration.

Process connections: Flanges and threads
Process pressure: Vacuum to +100bar (vacuum to +1,450psi)
Measuring range: 0.1 to 4.0m (0.3 to 13ft)
Temperature: -80 to +200°C (-112 to +392°F)
International explosion protection certificates, overfill prevention WHG, SIL, hygienic certificates, marine approvals

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 necessary for media with a conductivity of 100μS/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

Extended selection

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

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Predecessor

Success stories

Simple and efficient level measurements in silos

Simple and efficient level measurement in silos with the product familiy Micropilot FMR10B, FMR20B and FMR30B
Read the full story
Simple and efficient level measurements in sewer systems

Simple and efficient level measurements in sewer systems with the product familiy Micropilot FMR10B, FMR20B and FMR30B
Read the full story
Simple and efficient level measurements in open channels

Simple and efficient level measurements in open channels with the product familiy Micropilot FMR10B, FMR20B and FMR30B
Read the full story
Reliable level measurements in bunker and stockpiles

Simple and efficient level measurements in in bunker and stockpiles with the product familiy Micropilot FMR10B, FMR20B and FMR30B
Read the full story
Optimized logistics concept for tank systems

We implemented a highly effective logistics concept at chemicals distributors Brenntag Schweizerhall AG's Basel site.
Read the full story

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

<0.5%
Ambient temperature

-50°C...+70°C
-58°F...+158°F
Process temperature

-80°C...200°C
-112°F...392°F
Process pressure / 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

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

Filter

Search spare parts by number in drawing

60 spare parts & accessories

Cover F16 grey, PBTP, gasket

Cover

Drawing number

Order code

20

52025606
Cover F16 high, transparent, gasket

Cover

Drawing number

Order code

20

52025605
Cover F13 Ex Alu, gasket

Cover

Drawing number

Order code

20

52002698
Cover F13/F17 Alu,high,sight glass,gask.

Cover

Drawing number

Order code

20

52028270
Cover F17 Alu, gasket

Cover

Drawing number

Order code

20

52002699
Cover F15 316L, gasket

Cover

Drawing number

Order code

20

52027000
Cover F15 316L, claw, gasket

Cover

Drawing number

Order code

20

52027708
Cover F15 316L, high, sight glass,gasket

Cover

Drawing number

Order code

20

52028269
Cover T13 Alu, gasket EPDM

Cover

Drawing number

Order code

20

52006903
Cover T13 Alu,Ex d,high,sight glass,gas.

Cover

Drawing number

Order code

20

52028271
Cover T13 "Terminal" Alu, gasket EPDM

Cover

Drawing number

Order code

25

52007103
O-ring 71.0x3.55 EPDM, 5 pieces

Cover

Drawing number

Order code

20

52004137
Sealing set EPDM,cover F13/17/18/27,5pc

further parts

Order code

52004277
Gasket 67.5x2.9x1.5 VMQ/PTFE, 5 pieces

further parts

Order code

52028179
Sealing set EPDM 73.0x3.0, 10 pieces

further parts

Order code

52008495
Electronics FEI50H, 4-20mA, HART

Electronic

Drawing number

Order code

30

52028260
Electronics FEI57C, PFM

Electronic

Drawing number

Order code

30

52028261
Terminal module 2-pole EEx d, RFI filter

Terminal module

Drawing number

Order code

35

71020804
Display, holder

Display

Drawing number

Order code

40

52028266
Mounting set (2"/pipe 38_V4A

further parts

Order code

919806-1000
Sealing ring G1/2, 21x26, FA, 5 pcs.

further parts

Drawing number

Order code

57

71194296
Sealing ring G3/4, 27x32, FA, 5 pcs.

further parts

Drawing number

Order code

57

71185027
Sealing ring G1, 33x39 FA, 5 pcs.

further parts

Drawing number

Order code

57

52014048
Sealing ring G1-1/2, 48x55 FA, 5 pcs.

further parts

Drawing number

Order code

57

52014047
O-ring 14.9x2.7 VMQ, FDA, 5 pcs.

further parts

Order code

52021717
O-ring 14.9x2.7 VMQ, FDA, USP, 3 pcs.

further parts

Order code

71086117
O-ring 28.17x3.53 VMQ, FDA, 5 pcs.

further parts

Order code

52014472
O-ring 28.17x3.53 VMQ, FDA, USP, 3 pcs.

further parts

Order code

71086102
O-ring 28.17x3.53 EPDM, FDA, USP, 3 pcs.

further parts

Order code

71140668
Sealing ring 15,08x2,62 EPDM, 5 pcs

further parts

Order code

71529759
Weather protection cover F13/F17/F18/F27

Order code

71040497
Protection cover F16 housing

Order code

71127760
Weld-in adapter UNI D65, 316L

Order code

214880-0002
Weld-in adapter UNI D65, 316L, 3.1

Order code

52010174
Weld-in adapter UNI D85, 316L

Order code

52006262
Weld-in adapter UNI D85, 316L, 3.1

Order code

52010173
Profile gasket silicone, 5 pieces

Order code

52023572
Weld-in adapter G3/4, d=29, 316L

Order code

71258357
Weld-in adapter G3/4 d=50, 316L

Order code

71258355
Weld-in adapter G3/4 d=50, 316L, 3.1

Order code

52018765
Weld-in adapter G1, d=60, 316L

Order code

52001051
Weld-in adapter G1, d=60, 316L, 3.1

Order code

52011896
Weld-in adapter G1, d=53, 316L, 3.1

Order code

71093129
Weld-in adapter G1, d=53, 316L

Order code

71258358

3 products & bundles

3 products

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FMI51

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CAD drawings CAD drawings

Available once configuration is complete

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CAD drawings

CAD drawings are only available on our desktop experience

Optional add-ons

Please use the individual configurator to continue

Individual configuration

Continue your selection from all possible options

Often bought together

Accessories

Weather protection cover F13/F17/F18/F27

Protection cover F16 housing

See more accessories

CapacitanceLevel measurementLiquicap FMI51

For continuous level and interface measurement in liquids

Specs at a glance

Accuracy

Process temperature

Process pressure / max. overpressure limit

Max. measurement distance

Main wetted parts

Field of application

Benefits

Extended selection

Predecessor

Success stories

Simple and efficient level measurements in silos

Simple and efficient level measurements in sewer systems

Simple and efficient level measurements in open channels

Reliable level measurements in bunker and stockpiles

Optimized logistics concept for tank systems

Measuring principle

Characteristic / Application

Interface measurement

Specialities

Supply / Communication

Accuracy

Linearity error for conductive liquids

Ambient temperature

Process temperature

Process pressure / max. overpressure limit

Main wetted parts

Process connection

Process connection hygienic

Sensor length

Max. measurement distance

Communication

Certificates / Approvals

Safety approvals

Design approvals

Hygienic approvals

Marine approval

Options

Application limits

Back

Cover F16 grey, PBTP, gasket

Cover F16 high, transparent, gasket

Cover F13 Ex Alu, gasket

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

Cover F17 Alu, gasket

Cover F15 316L, gasket

Cover F15 316L, claw, gasket

Cover F15 316L, high, sight glass,gasket

Cover T13 Alu, gasket EPDM

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

Cover T13 "Terminal" Alu, gasket EPDM

O-ring 71.0x3.55 EPDM, 5 pieces

Sealing set EPDM,cover F13/17/18/27,5pc

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

Sealing set EPDM 73.0x3.0, 10 pieces

Electronics FEI50H, 4-20mA, HART

Electronics FEI57C, PFM

Terminal module 2-pole EEx d, RFI filter

Display, holder

Mounting set (2"/pipe 38_V4A

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

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

Sealing ring G1, 33x39 FA, 5 pcs.

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

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

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

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

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

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

Sealing ring 15,08x2,62 EPDM, 5 pcs

Weather protection cover F13/F17/F18/F27

Protection cover F16 housing

Weld-in adapter UNI D65, 316L

Weld-in adapter UNI D65, 316L, 3.1

Weld-in adapter UNI D85, 316L

Weld-in adapter UNI D85, 316L, 3.1

Profile gasket silicone, 5 pieces

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

Capacitance
Level measurement
Liquicap FMI51

Capacitance
Point level switch
Nivotester FTC325

Capacitance
Point level switch
Nivotester FTC325