Specs at a glance

Accuracy

+/- 6 mm (0.24 in)
Process temperature

-40...+150 °C
(-40...+302 °F)
Process pressure / max. overpressure limit

Vacuum...40 bar
(Vacuum...580 psi)
Max. measurement distance

Standard: 20 m (66 ft)
Main wetted parts

PTFE, PVDF

See all specifications

Field of application

Micropilot FMR53 for simple level measurement applications in liquids. With its slim rod antenna, FMR53 free space radar is particularly suited for small process connections. The PTFE coating of the rod antenna and flange plating guarantee resistance also in aggressive media. The Micropilot FMR53 is used for continuous, non-contact level measurement of liquids, pastes and slurries. The measurement is not affected by changing media, temperature changes, gas blankets or vapors.

Especially suited for small process connections, PTFE sensors usable in chemically aggressive media.

Process connections: Thread or flange
Temperature: -40 to +150°C (–40 to +302°F)
Pressure range: -1 to +40bar (–14.5 to +580psi)
Maximum measuring range: 20m (66ft)
Accuracy: ±6mm
C-band: 6GHz
International explosion protection certificates, overfill prevention WHG, SIL, 5-point linearity protocol

Benefits

Reliable non-contact measurement even for changing product and process conditions
HistoROM data management concept for fast and easy commissioning, maintenance and diagnostics
Highest reliability even in the presence of obstructions in the vessel due to new Multi-Echo Tracking evaluation
Hardware and software developed according to IEC 61508 up to SIL3 (in homogeneous redundancy)
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 concept for SIL and WHG saves time and cost

Videos

Time-of-Flight measuring principle
Commissioning movie for Micropilot FMR5x free space radar and Levelflex FMP5x guided radar
Unique HistoROM data management concept for safe level measurement
Continuous adapting algorithms offering safe level measurement due to Multi-Echo Tracking

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

Micropilot M FMR231

Success stories

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
Fit for purpose instrumentation for CNG compressors

The Egyptian government is working to replace liquid fuels with natural gas. To achieve this they targeted increasing the number of CNG stations in their country from 306 to 1000 by the end of 2021.
Read the full story
Extend SIL proof test intervals with new Liquiphant FTL51

Discover how our customer CABB was able to extend SIL proof test intervals with the new Liquiphant FTL51
Read the full story
Truck loading - safety solved through trusted partnership

Endress+Hauser provides global chemical and plastics distributor with “total turnkey solution”
Read the full story

Could also interest you

Media
Dielectric constant - Competence Brochure

Competence Brochure - Dielectric constant
More information

Measuring principle

Level radar
Characteristic / Application

For common non-contact continuous level measurement in liquids,
especially suited for small process connections and for chemically aggressive media;
Rod antenna with PTFE coating
Specialities

Heartbeat Technology,
SIL 2 according to IEC 61508,
Bluetooth® commissioning,
Operation and maintenance SmartBlue App,
Safety and reliability with Multi-Echo Tracking,
HistoROM,
RFID TAG for easy identification
Supply / Communication

2-wire (HART / PROFIBUS PA/ FOUNDATION Fieldbus)
4-wire (HART)
Bluetooth® wireless technology and App (optional)
Frequency

C-band (~6 GHz)
Accuracy

+/- 6 mm (0.24 in)
Ambient temperature

-40...+80 °C
(-40...+176 °F)
Process temperature

-40...+150 °C
(-40...+302 °F)
Process pressure / max. overpressure limit

Vacuum...40 bar
(Vacuum...580 psi)
Main wetted parts

PTFE, PVDF
Process connection

Thread:
MNPT 1 1/2, R 1 1/2
Flange:
DN50...DN150,
ASME 2"...6",
JIS 10K
Max. measurement distance

Standard: 20 m (66 ft)
Communication

4...20 mA HART
PROFIBUS PA
FOUNDATION Fieldbus
Bluetooth® wireless technology
Certificates / Approvals

ATEX, FM, CSA C/US, IEC Ex, JPN Ex, INMETRO, NEPSI, KC, EAC, UK Ex
Safety approvals

Overfill protection WHG
SIL
Design approvals

EN 10204-3.1
ASME B31.3
AD2000
Options

Display,
Remote operation via SmartBlue App using Bluetooth®,
Customized parameterization,
Gas-tight feed through,
PWIS free
Application limits

Maximum measuring range is dependent on the tank form and/or application
Nozzle height >250 mm:
FMR51, FMR52, FMR54
Low DK:
FMR51, FMR52, FMR54

Filter

Search spare parts by number in drawing

- Show drawing (PDF)

60 spare parts & accessories

Housing filter 316L, GT18, 1 set

Filter

Drawing number

Order code

19

71115174
Housing filter Brass/Ni GT19/20, 1 set

Filter

Drawing number

Order code

19

71115175
Set housing securing clamps

Housing/housing accessories

Drawing number

Order code

17

71115176
Cover GT18 316L, HNBR

Cover

Drawing number

Order code

20

71110281
Cover GT18 316L, sight glass, HNBR

Cover

Drawing number

Order code

20

71110282
Cover GT19 PBT, EPDM

Cover

Drawing number

Order code

20

71110293
Cover GT19 PBT, sight glass, EPDM

Cover

Drawing number

Order code

20

71110292
Cover GT20 Alu, sight glass, HNBR

Cover

Drawing number

Order code

20

71110297
Cover GT20 Alu, HNBR

Cover

Drawing number

Order code

20

71110299
Cover GT18 316L, terminal Ex d, HNBR

Cover

Drawing number

Order code

25

71110284
Cover GT18 316L, terminal Ex, HNBR

Cover

Drawing number

Order code

25

71110291
Cover GT18 316L, Terminal, OVP, HNBR

Cover

Drawing number

Order code

25

71185516
Cover GT19 PBT, Terminal Ex, EPDM

Cover

Drawing number

Order code

20

71110295
Cover GT19 PBT, Terminal, OVP, EPDM

Cover

Drawing number

Order code

25

71185518
Cover GT20 Alu, Terminal Ex, HNBR

Cover

Drawing number

Order code

25

71110301
Cover GT20 Alu, Terminal Ex d, HNBR

Cover

Drawing number

Order code

25

71110302
Cover GT20 Alu, Terminal, OVP, HNBR

Cover

Drawing number

Order code

25

71185517
Sealing set GT18/GT19/GT20, EPDM, HNBR

Sealing

Drawing number

Order code

65

71110303
Plug M12, IP66/68 NEMA4X/6P, ProToF

further parts

Order code

71450381
Blind plug M20, Alu, Ex d

further parts

Drawing number

Order code

14

71679714
Blind plug M20, 316L, Ex d

further parts

Drawing number

Order code

14

71679712
Electronics Micropilot FMR5x

Electronic

Drawing number

Order code

30

XPF0020-
Electronics Micropilot FMR5x

Electronic

Drawing number

Order code

30

XPF0020-
Electronics Micropilot FMR5x

Electronic

Drawing number

Order code

30

XPF0020-
Electronics Micropilot FMR5x

Electronic

Drawing number

Order code

30

XPF0020-
Electronics Micropilot FMR5x

Electronic

Drawing number

Order code

30

XPF0020-
Electronics Micropilot FMR5x

Electronic

Drawing number

Order code

30

XPF0020-
Electronics Micropilot FMR5x

Electronic

Drawing number

Order code

30

XPF0020-
Electronics Micropilot FMR5x

Electronic

Drawing number

Order code

30

XPF0020-
I/O mod.Level,2-wr.4-20mA,HART,Ex,LP,V2

I/O module

Drawing number

Order code

34

71187812
I/O module 2-wire, 4-20mA, HART, Ex, V2

I/O module

Drawing number

Order code

34

71108594
I/O module, 2-wr.,4-20mA,HART,PFS,Ex,V1

I/O module

Drawing number

Order code

34

71108599
I/O mod. Level, 2-wr.2x4-20mA,HART,Ex,V2

I/O module

Drawing number

Order code

34

71207474
I/O mod. Level,4-wr.DC,4-20mA,HART,Ex,V2

I/O module

Drawing number

Order code

34

71207473
I/O mod. Level,4-wr.AC,4-20mA,HART,Ex,V2

I/O module

Drawing number

Order code

34

71207475
I/O module, 2-wire, PA/FF, PFS, Ex, V2

I/O module

Drawing number

Order code

34

71164940
Terminal set 4-wire, I/O module

Terminals

Drawing number

Order code

37

71110279
Terminal set 2-wire, I/O module

Terminals

Drawing number

Order code

37

71110280
Display module, SD02, push buttons

Display

Drawing number

Order code

40

XPD0024-
Display module, SD03, Touch Control

Display

Drawing number

Order code

40

XPD0025-
Cable FHX50, FHX50B, 5m

further parts

Order code

71206552
Cable FHX50, FHX50B, 10m

further parts

Order code

71206554
Cable FHX50, FHX50B, 20m

further parts

Order code

71206555
Cable FHX50, FHX50B, 30m

further parts

Order code

71206556
Spare parts set - retrofit kit FHX50

further parts

Order code

71248380
Transmitter electronics FHX50

further parts

Order code

71197334
Overvoltage protection (OVP10),1-Channel

Order code

71128617
Overvoltage protection (OVP20),2-Channel

Order code

71128619
Weather prot. cover GT18/GT19/GT20, 316L

Order code

71162242
Bluetooth module (BT10)

Order code

71377355

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CAD drawings CAD drawings

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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

Overvoltage protection (OVP10),1-Channel

Overvoltage protection (OVP20),2-Channel

See more accessories

Radar measurement Time-of-FlightMicropilot FMR53

For simple level measurement applications in liquids

Specs at a glance

Accuracy

Process temperature

Process pressure / max. overpressure limit

Max. measurement distance

Main wetted parts

Field of application

Benefits

Videos

Extended selection

Predecessor

Success stories

Optimized logistics concept for tank systems

Fit for purpose instrumentation for CNG compressors

Extend SIL proof test intervals with new Liquiphant FTL51

Truck loading - safety solved through trusted partnership

Could also interest you

Dielectric constant - Competence Brochure

Measuring principle

Characteristic / Application

Specialities

Supply / Communication

Frequency

Accuracy

Ambient temperature

Process temperature

Process pressure / max. overpressure limit

Main wetted parts

Process connection

Max. measurement distance

Communication

Certificates / Approvals

Safety approvals

Design approvals

Options

Application limits

Back

Housing filter 316L, GT18, 1 set

Housing filter Brass/Ni GT19/20, 1 set

Set housing securing clamps

Cover GT18 316L, HNBR

Cover GT18 316L, sight glass, HNBR

Cover GT19 PBT, EPDM

Cover GT19 PBT, sight glass, EPDM

Cover GT20 Alu, sight glass, HNBR

Cover GT20 Alu, HNBR

Cover GT18 316L, terminal Ex d, HNBR

Cover GT18 316L, terminal Ex, HNBR

Cover GT18 316L, Terminal, OVP, HNBR

Cover GT19 PBT, Terminal Ex, EPDM

Cover GT19 PBT, Terminal, OVP, EPDM

Cover GT20 Alu, Terminal Ex, HNBR

Cover GT20 Alu, Terminal Ex d, HNBR

Cover GT20 Alu, Terminal, OVP, HNBR

Sealing set GT18/GT19/GT20, EPDM, HNBR

Plug M12, IP66/68 NEMA4X/6P, ProToF

Blind plug M20, Alu, Ex d

Blind plug M20, 316L, Ex d

Electronics Micropilot FMR5x

Electronics Micropilot FMR5x

Electronics Micropilot FMR5x

Electronics Micropilot FMR5x

Electronics Micropilot FMR5x

Electronics Micropilot FMR5x

Electronics Micropilot FMR5x

Electronics Micropilot FMR5x

I/O mod.Level,2-wr.4-20mA,HART,Ex,LP,V2

I/O module 2-wire, 4-20mA, HART, Ex, V2

I/O module, 2-wr.,4-20mA,HART,PFS,Ex,V1

I/O mod. Level, 2-wr.2x4-20mA,HART,Ex,V2

I/O mod. Level,4-wr.DC,4-20mA,HART,Ex,V2

I/O mod. Level,4-wr.AC,4-20mA,HART,Ex,V2

I/O module, 2-wire, PA/FF, PFS, Ex, V2

Terminal set 4-wire, I/O module

Terminal set 2-wire, I/O module

Display module, SD02, push buttons

Display module, SD03, Touch Control

Cable FHX50, FHX50B, 5m

Radar measurement
Time-of-Flight
Micropilot FMR53